113 results on '"Zeman M."'
Search Results
2. A geographic information system-based large scale visibility assessment tool for multi-criteria photovoltaic planning on urban building roofs
- Author
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Zhou, Y., Wilmink, D., Zeman, M., Isabella, O., and Ziar, H.
- Published
- 2023
- Full Text
- View/download PDF
3. Dynamic operation of water electrolyzers: A review for applications in photovoltaic systems integration
- Author
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Martinez Lopez, V.A., Ziar, H., Haverkort, J.W., Zeman, M., and Isabella, O.
- Published
- 2023
- Full Text
- View/download PDF
4. Study of Photonuclear Reactions in 165Ho Nucleus at the LINAC-200 Accelerator
- Author
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Khushvaktov, J. H., Stegailov, V. I., Adam, J., Kobets, V. V., Solnyshkin, A. A., Svoboda, J., Teterev, Yu. G., Tichy, P., Tyutyunnikov, S. I., Vrzalova, J., Yuldashev, B. S., and Zeman, M.
- Published
- 2022
- Full Text
- View/download PDF
5. Introducing a comprehensive physics-based modelling framework for tandem and other PV systems
- Author
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Vogt, M.R., Tobon, C. Ruiz, Alcañiz, A., Procel, P., Blom, Y., El Din, A. Nour, Stark, T., Wang, Z., Goma, E. Garcia, Etxebarria, J.G., Ziar, H., Zeman, M., Santbergen, R., and Isabella, O.
- Published
- 2022
- Full Text
- View/download PDF
6. Using sky-classification to improve the short-term prediction of irradiance with sky images and convolutional neural networks
- Author
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Martinez Lopez, V.A. (author), van Urk, G.A. (author), Doodkorte, P.J.F. (author), Zeman, M. (author), Isabella, O. (author), Ziar, H. (author), Martinez Lopez, V.A. (author), van Urk, G.A. (author), Doodkorte, P.J.F. (author), Zeman, M. (author), Isabella, O. (author), and Ziar, H. (author)
- Abstract
Clouds moving in front or away from the sun are the leading cause of irradiance variability. These variations have a repercussion on the electricity production of photovoltaic systems. Predicting such changes is essential for proper control of these systems and for maintaining grid stability. Images from the sky have proven to help with short-term solar irradiance forecasting, especially when combined with artificial intelligence. Nevertheless, these models tend to smooth the irradiance fluctuations. We propose a forecasting model to predict the clear-sky index in a forecast horizon of 20 min with a 1-minute resolution. Our model, based on a classifier to determine the sky conditions and, on an optical flow, applies an artificial intelligence model explicitly trained on each class of sky conditions. This strategy has an equivalent performance to an unclassified model and a forecast skill between 5 and 20% with respect to the smart persistence model for most classes of sky conditions while requiring considerably less training data. Although our model reduces the overall predicting error, it still has difficulties predicting irradiance changes and mainly overcast days. Our classifying strategy can be applied to other models targeting different objectives to predict sudden changes in either irradiance or power related to photovoltaic systems., Photovoltaic Materials and Devices, Electrical Engineering, Mathematics and Computer Science
- Published
- 2024
- Full Text
- View/download PDF
7. Combined Fabrication and Performance Evaluation of TOPCon Back-Contact Solar Cells with Lateral Power Metal-Oxide-Semiconductor Field-Effect Transistors on a Single Substrate
- Author
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van Nijen, D.A. (author), Stevens, Tristan (author), Mercimek, Yavuzhan (author), Yang, G. (author), van Swaaij, R.A.C.M.M. (author), Zeman, M. (author), Isabella, O. (author), Manganiello, P. (author), van Nijen, D.A. (author), Stevens, Tristan (author), Mercimek, Yavuzhan (author), Yang, G. (author), van Swaaij, R.A.C.M.M. (author), Zeman, M. (author), Isabella, O. (author), and Manganiello, P. (author)
- Abstract
Nowadays, an increasing share of photovoltaic (PV) systems makes use of module- or submodule-level power electronics (PE). Furthermore, PE is used in stand-alone devices powered by PV-storage solutions. One way to facilitate further implementation of PE in PV applications is to integrate PE components into crystalline silicon PV cells. Herein, the COSMOS device is introduced, denoting COmbined Solar cell and metal-oxide-semiconductor field-effect transistor (MOSFET). Specifically, the combined manufacturing of lateral power MOSFETs and interdigitated back contact solar cells with tunnel-oxide passivated contacts (TOPCon) on a single wafer is reported. Many steps of the proposed process flow are used for the fabrication of both devices, enabling cost-effective integration of the MOSFET. Both n-type solar cells with integrated p-channel MOSFETs (PMOS) and p-type solar cells with integrated n-channel MOSFETs (NMOS) are successfully manufactured. NMOS devices perform better in achieving low on-resistance, while PMOS devices exhibit lower leakage currents. Furthermore, the study reveals integration challenges where off-state leakage currents of the MOSFET can increase due to illumination and specific configurations of monolithic interconnections between the MOSFET and the solar cell. Nevertheless, for both n-type and p-type solar cells, efficiencies exceeding 20% are achieved, highlighting the potential of the proposed process for COSMOS devices., Photovoltaic Materials and Devices
- Published
- 2024
- Full Text
- View/download PDF
8. Erratum to: Search for single top-quark production via flavour-changing neutral currents at 8 TeV with the ATLAS detector
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Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Aben, R., Abolins, M., AbouZeid, O. S., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B. S., Adamczyk, L., Adams, D. L., Adelman, J., Adomeit, S., Adye, T., Affolder, A. A., Agatonovic-Jovin, T., Agricola, J., Aguilar-Saavedra, J. A., Ahlen, S. P., Ahmadov, F., Aielli, G., Akerstedt, H., Åkesson, T. P. A., Akimov, A. V., Alberghi, G. L., Albert, J., Albrand, S., Alconada Verzini, M. J., Aleksa, M., Aleksandrov, I. N., Alexa, C., Alexander, G., Alexopoulos, T., Alhroob, M., Alimonti, G., Alio, L., Alison, J., Alkire, S. P., Allbrooke, B. M. M., Allport, P. P., Aloisio, A., Alonso, A., Alonso, F., Alpigiani, C., Altheimer, A., Alvarez Gonzalez, B., Álvarez Piqueras, D., Alviggi, M. G., Amadio, B. T., Amako, K., Amaral Coutinho, Y., Amelung, C., Amidei, D., Amor Dos Santos, S. P., Amorim, A., Amoroso, S., Amram, N., Amundsen, G., Anastopoulos, C., Ancu, L. S., Andari, N., Andeen, T., Anders, C. F., Anders, G., Anders, J. K., Anderson, K. J., Andreazza, A., Andrei, V., Angelidakis, S., Angelozzi, I., Anger, P., Angerami, A., Anghinolfi, F., Anisenkov, A. V., Anjos, N., Annovi, A., Antonelli, M., Antonov, A., Antos, J., Anulli, F., Aoki, M., Aperio Bella, L., Arabidze, G., Arai, Y., Araque, J. P., Arce, A. T. H., Arduh, F. A., Arguin, J-F., Argyropoulos, S., Arik, M., Armbruster, A. J., Arnaez, O., Arnal, V., Arnold, H., Arratia, M., Arslan, O., Artamonov, A., Artoni, G., Asai, S., Asbah, N., Ashkenazi, A., Åsman, B., Asquith, L., Assamagan, K., Astalos, R., Atkinson, M., Atlay, N. B., Augsten, K., Aurousseau, M., Avolio, G., Axen, B., Ayoub, M. K., Azuelos, G., Baak, M. A., Baas, A. E., Baca, M. J., Bacci, C., Bachacou, H., Bachas, K., Backes, M., Backhaus, M., Bagiacchi, P., Bagnaia, P., Bai, Y., Bain, T., Baines, J. T., Baker, O. K., Baldin, E. M., Balek, P., Balestri, T., Balli, F., Banas, E., Banerjee, Sw., Bannoura, A. A. E., Bansil, H. S., Barak, L., Barberio, E. L., Barberis, D., Barbero, M., Barillari, T., Barisonzi, M., Barklow, T., Barlow, N., Barnes, S. L., Barnett, B. M., Barnett, R. M., Barnovska, Z., Baroncelli, A., Barone, G., Barr, A. J., Barreiro, F., Barreiro Guimarães da Costa, J., Bartoldus, R., Barton, A. E., Bartos, P., Basalaev, A., Bassalat, A., Basye, A., Bates, R. L., Batista, S. J., Batley, J. R., Battaglia, M., Bauce, M., Bauer, F., Bawa, H. S., Beacham, J. B., Beattie, M. D., Beau, T., Beauchemin, P. H., Beccherle, R., Bechtle, P., Beck, H. P., Becker, K., Becker, M., Beckingham, M., Becot, C., Beddall, A. J., Beddall, A., Bednyakov, V. A., Bee, C. P., Beemster, L. J., Beermann, T. A., Begel, M., Behr, J. K., Belanger-Champagne, C., Bell, W. H., Bella, G., Bellagamba, L., Bellerive, A., Bellomo, M., Belotskiy, K., Beltramello, O., Benary, O., Benchekroun, D., Bender, M., Bendtz, K., Benekos, N., Benhammou, Y., Benhar Noccioli, E., Benitez Garcia, J. A., Benjamin, D. P., Bensinger, J. R., Bentvelsen, S., Beresford, L., Beretta, M., Berge, D., Bergeaas Kuutmann, E., Berger, N., Berghaus, F., Beringer, J., Bernard, C., Bernard, N. R., Bernius, C., Bernlochner, F. U., Berry, T., Berta, P., Bertella, C., Bertoli, G., Bertolucci, F., Bertsche, C., Bertsche, D., Besana, M. I., Besjes, G. J., Bessidskaia Bylund, O., Bessner, M., Besson, N., Betancourt, C., Bethke, S., Bevan, A. J., Bhimji, W., Bianchi, R. M., Bianchini, L., Bianco, M., Biebel, O., Biedermann, D., Bieniek, S. P., Biglietti, M., Bilbao De Mendizabal, J., Bilokon, H., Bindi, M., Binet, S., Bingul, A., Bini, C., Biondi, S., Black, C. W., Black, J. E., Black, K. M., Blackburn, D., Blair, R. E., Blanchard, J.-B., Blanco, J. E., Blazek, T., Bloch, I., Blocker, C., Blum, W., Blumenschein, U., Bobbink, G. J., Bobrovnikov, V. S., Bocchetta, S. S., Bocci, A., Bock, C., Boehler, M., Bogaerts, J. A., Bogavac, D., Bogdanchikov, A. G., Bohm, C., Boisvert, V., Bold, T., Boldea, V., Boldyrev, A. S., Bomben, M., Bona, M., Boonekamp, M., Borisov, A., Borissov, G., Borroni, S., Bortfeldt, J., Bortolotto, V., Bos, K., Boscherini, D., Bosman, M., Boudreau, J., Bouffard, J., Bouhova-Thacker, E. V., Boumediene, D., Bourdarios, C., Bousson, N., Boveia, A., Boyd, J., Boyko, I. R., Bozic, I., Bracinik, J., Brandt, A., Brandt, G., Brandt, O., Bratzler, U., Brau, B., Brau, J. E., Braun, H. M., Brazzale, S. F., Breaden Madden, W. D., Brendlinger, K., Brennan, A. J., Brenner, L., Brenner, R., Bressler, S., Bristow, K., Bristow, T. M., Britton, D., Britzger, D., Brochu, F. M., Brock, I., Brock, R., Bronner, J., Brooijmans, G., Brooks, T., Brooks, W. K., Brosamer, J., Brost, E., Brown, J., Bruckman de Renstrom, P. A., Bruncko, D., Bruneliere, R., Bruni, A., Bruni, G., Bruschi, M., Bruscino, N., Bryngemark, L., Buanes, T., Buat, Q., Buchholz, P., Buckley, A. G., Buda, S. I., Budagov, I. A., Buehrer, F., Bugge, L., Bugge, M. K., Bulekov, O., Bullock, D., Burckhart, H., Burdin, S., Burgard, C. D., Burghgrave, B., Burke, S., Burmeister, I., Busato, E., Büscher, D., Büscher, V., Bussey, P., Butler, J. M., Butt, A. I., Buttar, C. M., Butterworth, J. M., Butti, P., Buttinger, W., Buzatu, A., Buzykaev, A. R., Cabrera Urbán, S., Caforio, D., Cairo, V. M., Cakir, O., Calace, N., Calafiura, P., Calandri, A., Calderini, G., Calfayan, P., Caloba, L. P., Calvet, D., Calvet, S., Camacho Toro, R., Camarda, S., Camarri, P., Cameron, D., Caminal Armadans, R., Campana, S., Campanelli, M., Campoverde, A., Canale, V., Canepa, A., Cano Bret, M., Cantero, J., Cantrill, R., Cao, T., Capeans Garrido, M. D. M., Caprini, I., Caprini, M., Capua, M., Caputo, R., Cardarelli, R., Cardillo, F., Carli, T., Carlino, G., Carminati, L., Caron, S., Carquin, E., Carrillo-Montoya, G. D., Carter, J. R., Carvalho, J., Casadei, D., Casado, M. P., Casolino, M., Castaneda-Miranda, E., Castelli, A., Castillo Gimenez, V., Castro, N. F., Catastini, P., Catinaccio, A., Catmore, J. R., Cattai, A., Caudron, J., Cavaliere, V., Cavalli, D., Cavalli-Sforza, M., Cavasinni, V., Ceradini, F., Cerio, B. C., Cerny, K., Cerqueira, A. S., Cerri, A., Cerrito, L., Cerutti, F., Cerv, M., Cervelli, A., Cetin, S. A., Chafaq, A., Chakraborty, D., Chalupkova, I., Chang, P., Chapman, J. D., Charlton, D. G., Chau, C. C., Chavez Barajas, C. A., Cheatham, S., Chegwidden, A., Chekanov, S., Chekulaev, S. V., Chelkov, G. A., Chelstowska, M. A., Chen, C., Chen, H., Chen, K., Chen, L., Chen, S., Chen, X., Chen, Y., Cheng, H. C., Cheng, Y., Cheplakov, A., Cheremushkina, E., Cherkaoui El Moursli, R., Chernyatin, V., Cheu, E., Chevalier, L., Chiarella, V., Chiarelli, G., Chiodini, G., Chisholm, A. S., Chislett, R. T., Chitan, A., Chizhov, M. V., Choi, K., Chouridou, S., Chow, B. K. B., Christodoulou, V., Chromek-Burckhart, D., Chudoba, J., Chuinard, A. J., Chwastowski, J. J., Chytka, L., Ciapetti, G., Ciftci, A. K., Cinca, D., Cindro, V., Cioara, I. A., Ciocio, A., Cirotto, F., Citron, Z. H., Ciubancan, M., Clark, A., Clark, B. L., Clark, P. J., Clarke, R. N., Cleland, W., Clement, C., Coadou, Y., Cobal, M., Coccaro, A., Cochran, J., Coffey, L., Cogan, J. G., Colasurdo, L., Cole, B., Cole, S., Colijn, A. P., Collot, J., Colombo, T., Compostella, G., Conde Muiño, P., Coniavitis, E., Connell, S. H., Connelly, I. A., Consorti, V., Constantinescu, S., Conta, C., Conti, G., Conventi, F., Cooke, M., Cooper, B. D., Cooper-Sarkar, A. M., Cornelissen, T., Corradi, M., Corriveau, F., Corso-Radu, A., Cortes-Gonzalez, A., Cortiana, G., Costa, G., Costa, M. J., Costanzo, D., Côté, D., Cottin, G., Cowan, G., Cox, B. E., Cranmer, K., Cree, G., Crépé-Renaudin, S., Crescioli, F., Cribbs, W. A., Crispin Ortuzar, M., Cristinziani, M., Croft, V., Crosetti, G., Cuhadar Donszelmann, T., Cummings, J., Curatolo, M., Cuthbert, C., Czirr, H., Czodrowski, P., D’Auria, S., D’Onofrio, M., Da Cunha Sargedas De Sousa, M. J., Da Via, C., Dabrowski, W., Dafinca, A., Dai, T., Dale, O., Dallaire, F., Dallapiccola, C., Dam, M., Dandoy, J. R., Dang, N. P., Daniells, A. C., Danninger, M., Dano Hoffmann, M., Dao, V., Darbo, G., Darmora, S., Dassoulas, J., Dattagupta, A., Davey, W., David, C., Davidek, T., Davies, E., Davies, M., Davison, P., Davygora, Y., Dawe, E., Dawson, I., Daya-Ishmukhametova, R. K., De, K., de Asmundis, R., De Benedetti, A., De Castro, S., De Cecco, S., De Groot, N., de Jong, P., De la Torre, H., De Lorenzi, F., De Pedis, D., De Salvo, A., De Sanctis, U., De Santo, A., De Vivie De Regie, J. B., Dearnaley, W. J., Debbe, R., Debenedetti, C., Dedovich, D. V., Deigaard, I., Del Peso, J., Del Prete, T., Delgove, D., Deliot, F., Delitzsch, C. M., Deliyergiyev, M., Dell’Acqua, A., Dell’Asta, L., Dell’Orso, M., Della Pietra, M., della Volpe, D., Delmastro, M., Delsart, P. A., Deluca, C., DeMarco, D. A., Demers, S., Demichev, M., Demilly, A., Denisov, S. P., Derendarz, D., Derkaoui, J. E., Derue, F., Dervan, P., Desch, K., Deterre, C., Deviveiros, P. O., Dewhurst, A., Dhaliwal, S., Di Ciaccio, A., Di Ciaccio, L., Di Domenico, A., Di Donato, C., Di Girolamo, A., Di Girolamo, B., Di Mattia, A., Di Micco, B., Di Nardo, R., Di Simone, A., Di Sipio, R., Di Valentino, D., Diaconu, C., Diamond, M., Dias, F. A., Diaz, M. A., Diehl, E. B., Dietrich, J., Diglio, S., Dimitrievska, A., Dingfelder, J., Dita, P., Dita, S., Dittus, F., Djama, F., Djobava, T., Djuvsland, J. I., do Vale, M. A. B., Dobos, D., Dobre, M., Doglioni, C., Dohmae, T., Dolejsi, J., Dolezal, Z., Dolgoshein, B. A., Donadelli, M., Donati, S., Dondero, P., Donini, J., Dopke, J., Doria, A., Dova, M. T., Doyle, A. T., Drechsler, E., Dris, M., Dubreuil, E., Duchovni, E., Duckeck, G., Ducu, O. A., Duda, D., Dudarev, A., Duflot, L., Duguid, L., Dührssen, M., Dunford, M., Duran Yildiz, H., Düren, M., Durglishvili, A., Duschinger, D., Dyndal, M., Eckardt, C., Ecker, K. M., Edgar, R. C., Edson, W., Edwards, N. C., Ehrenfeld, W., Eifert, T., Eigen, G., Einsweiler, K., Ekelof, T., El Kacimi, M., Ellert, M., Elles, S., Ellinghaus, F., Elliot, A. A., Ellis, N., Elmsheuser, J., Elsing, M., Emeliyanov, D., Enari, Y., Endner, O. C., Endo, M., Erdmann, J., Ereditato, A., Ernis, G., Ernst, J., Ernst, M., Errede, S., Ertel, E., Escalier, M., Esch, H., Escobar, C., Esposito, B., Etienvre, A. I., Etzion, E., Evans, H., Ezhilov, A., Fabbri, L., Facini, G., Fakhrutdinov, R. M., Falciano, S., Falla, R. J., Faltova, J., Fang, Y., Fanti, M., Farbin, A., Farilla, A., Farooque, T., Farrell, S., Farrington, S. M., Farthouat, P., Fassi, F., Fassnacht, P., Fassouliotis, D., Faucci Giannelli, M., Favareto, A., Fayard, L., Federic, P., Fedin, O. L., Fedorko, W., Feigl, S., Feligioni, L., Feng, C., Feng, E. J., Feng, H., Fenyuk, A. B., Feremenga, L., Fernandez Martinez, P., Fernandez Perez, S., Ferrando, J., Ferrari, A., Ferrari, P., Ferrari, R., Ferreira de Lima, D. E., Ferrer, A., Ferrere, D., Ferretti, C., Ferretto Parodi, A., Fiascaris, M., Fiedler, F., Filipčič, A., Filipuzzi, M., Filthaut, F., Fincke-Keeler, M., Finelli, K. D., Fiolhais, M. C. N., Fiorini, L., Firan, A., Fischer, A., Fischer, C., Fischer, J., Fisher, W. C., Fitzgerald, E. A., Flaschel, N., Fleck, I., Fleischmann, P., Fleischmann, S., Fletcher, G. T., Fletcher, G., Fletcher, R. R. M., Flick, T., Floderus, A., Flores Castillo, L. R., Flowerdew, M. J., Formica, A., Forti, A., Fournier, D., Fox, H., Fracchia, S., Francavilla, P., Franchini, M., Francis, D., Franconi, L., Franklin, M., Frate, M., Fraternali, M., Freeborn, D., French, S. T., Friedrich, F., Froidevaux, D., Frost, J. A., Fukunaga, C., Fullana Torregrosa, E., Fulsom, B. G., Fusayasu, T., Fuster, J., Gabaldon, C., Gabizon, O., Gabrielli, A., Gabrielli, A., Gach, G. P., Gadatsch, S., Gadomski, S., Gagliardi, G., Gagnon, P., Galea, C., Galhardo, B., Gallas, E. J., Gallop, B. J., Gallus, P., Galster, G., Gan, K. K., Gao, J., Gao, Y., Gao, Y. S., Garay Walls, F. M., Garberson, F., García, C., García Navarro, J. E., Garcia-Sciveres, M., Gardner, R. W., Garelli, N., Garonne, V., Gatti, C., Gaudiello, A., Gaudio, G., Gaur, B., Gauthier, L., Gauzzi, P., Gavrilenko, I. L., Gay, C., Gaycken, G., Gazis, E. N., Ge, P., Gecse, Z., Gee, C. N. P., Geich-Gimbel, Ch., Geisler, M. P., Gemme, C., Genest, M. H., Gentile, S., George, M., George, S., Gerbaudo, D., Gershon, A., Ghasemi, S., Ghazlane, H., Giacobbe, B., Giagu, S., Giangiobbe, V., Giannetti, P., Gibbard, B., Gibson, S. M., Gilchriese, M., Gillam, T. P. S., Gillberg, D., Gilles, G., Gingrich, D. M., Giokaris, N., Giordani, M. P., Giorgi, F. M., Giorgi, F. M., Giraud, P. F., Giromini, P., Giugni, D., Giuliani, C., Giulini, M., Gjelsten, B. K., Gkaitatzis, S., Gkialas, I., Gkougkousis, E. L., Gladilin, L. K., Glasman, C., Glatzer, J., Glaysher, P. C. F., Glazov, A., Goblirsch-Kolb, M., Goddard, J. R., Godlewski, J., Goldfarb, S., Golling, T., Golubkov, D., Gomes, A., Gonçalo, R., Goncalves Pinto Firmino Da Costa, J., Gonella, L., González de la Hoz, S., Gonzalez Parra, G., Gonzalez-Sevilla, S., Goossens, L., Gorbounov, P. A., Gordon, H. A., Gorelov, I., Gorini, B., Gorini, E., Gorišek, A., Gornicki, E., Goshaw, A. T., Gössling, C., Gostkin, M. I., Goujdami, D., Goussiou, A. G., Govender, N., Gozani, E., Grabas, H. M. X., Graber, L., Grabowska-Bold, I., Gradin, P. O. J., Grafström, P., Grahn, K-J., Gramling, J., Gramstad, E., Grancagnolo, S., Gratchev, V., Gray, H. M., Graziani, E., Greenwood, Z. D., Grefe, C., Gregersen, K., Gregor, I. M., Grenier, P., Griffiths, J., Grillo, A. A., Grimm, K., Grinstein, S., Gris, Ph., Grivaz, J.-F., Grohs, J. P., Grohsjean, A., Gross, E., Grosse-Knetter, J., Grossi, G. C., Grout, Z. J., Guan, L., Guenther, J., Guescini, F., Guest, D., Gueta, O., Guido, E., Guillemin, T., Guindon, S., Gul, U., Gumpert, C., Guo, J., Guo, Y., Gupta, S., Gustavino, G., Gutierrez, P., Gutierrez Ortiz, N. G., Gutschow, C., Guyot, C., Gwenlan, C., Gwilliam, C. B., Haas, A., Haber, C., Hadavand, H. K., Haddad, N., Haefner, P., Hageböck, S., Hajduk, Z., Hakobyan, H., Haleem, M., Haley, J., Hall, D., Halladjian, G., Hallewell, G. D., Hamacher, K., Hamal, P., Hamano, K., Hamilton, A., Hamity, G. N., Hamnett, P. G., Han, L., Hanagaki, K., Hanawa, K., Hance, M., Hanke, P., Hanna, R., Hansen, J. B., Hansen, J. D., Hansen, M. C., Hansen, P. H., Hara, K., Hard, A. S., Harenberg, T., Hariri, F., Harkusha, S., Harrington, R. D., Harrison, P. F., Hartjes, F., Hasegawa, M., Hasegawa, Y., Hasib, A., Hassani, S., Haug, S., Hauser, R., Hauswald, L., Havranek, M., Hawkes, C. M., Hawkings, R. J., Hawkins, A. D., Hayashi, T., Hayden, D., Hays, C. P., Hays, J. M., Hayward, H. S., Haywood, S. J., Head, S. 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M., Redelbach, A., Redlinger, G., Reece, R., Reeves, K., Rehnisch, L., Reichert, J., Reisin, H., Relich, M., Rembser, C., Ren, H., Renaud, A., Rescigno, M., Resconi, S., Rezanova, O. L., Reznicek, P., Rezvani, R., Richter, R., Richter, S., Richter-Was, E., Ricken, O., Ridel, M., Rieck, P., Riegel, C. J., Rieger, J., Rifki, O., Rijssenbeek, M., Rimoldi, A., Rinaldi, L., Ristić, B., Ritsch, E., Riu, I., Rizatdinova, F., Rizvi, E., Robertson, S. H., Robichaud-Veronneau, A., Robinson, D., Robinson, J. E. M., Robson, A., Roda, C., Roe, S., Røhne, O., Rolli, S., Romaniouk, A., Romano, M., Romano Saez, S. M., Romero Adam, E., Rompotis, N., Ronzani, M., Roos, L., Ros, E., Rosati, S., Rosbach, K., Rose, P., Rosendahl, P. L., Rosenthal, O., Rossetti, V., Rossi, E., Rossi, L. P., Rosten, J. H. N., Rosten, R., Rotaru, M., Roth, I., Rothberg, J., Rousseau, D., Royon, C. R., Rozanov, A., Rozen, Y., Ruan, X., Rubbo, F., Rubinskiy, I., Rud, V. I., Rudolph, C., Rudolph, M. 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G., Sarrazin, B., Sasaki, O., Sasaki, Y., Sato, K., Sauvage, G., Sauvan, E., Savage, G., Savard, P., Sawyer, C., Sawyer, L., Saxon, J., Sbarra, C., Sbrizzi, A., Scanlon, T., Scannicchio, D. A., Scarcella, M., Scarfone, V., Schaarschmidt, J., Schacht, P., Schaefer, D., Schaefer, R., Schaeffer, J., Schaepe, S., Schaetzel, S., Schäfer, U., Schaffer, A. C., Schaile, D., Schamberger, R. D., Scharf, V., Schegelsky, V. A., Scheirich, D., Schernau, M., Schiavi, C., Schillo, C., Schioppa, M., Schlenker, S., Schmieden, K., Schmitt, C., Schmitt, S., Schmitt, S., Schneider, B., Schnellbach, Y. J., Schnoor, U., Schoeffel, L., Schoening, A., Schoenrock, B. D., Schopf, E., Schorlemmer, A. L. S., Schott, M., Schouten, D., Schovancova, J., Schramm, S., Schreyer, M., Schroeder, C., Schuh, N., Schultens, M. J., Schultz-Coulon, H.-C., Schulz, H., Schumacher, M., Schumm, B. A., Schune, Ph., Schwanenberger, C., Schwartzman, A., Schwarz, T. A., Schwegler, Ph., Schweiger, H., Schwemling, Ph., Schwienhorst, R., Schwindling, J., Schwindt, T., Sciacca, F. G., Scifo, E., Sciolla, G., Scuri, F., Scutti, F., Searcy, J., Sedov, G., Sedykh, E., Seema, P., Seidel, S. C., Seiden, A., Seifert, F., Seixas, J. M., Sekhniaidze, G., Sekhon, K., Sekula, S. J., Seliverstov, D. M., Semprini-Cesari, N., Serfon, C., Serin, L., Serkin, L., Serre, T., Sessa, M., Seuster, R., Severini, H., Sfiligoj, T., Sforza, F., Sfyrla, A., Shabalina, E., Shamim, M., Shan, L. Y., Shang, R., Shank, J. T., Shapiro, M., Shatalov, P. B., Shaw, K., Shaw, S. M., Shcherbakova, A., Shehu, C. Y., Sherwood, P., Shi, L., Shimizu, S., Shimmin, C. O., Shimojima, M., Shiyakova, M., Shmeleva, A., Shoaleh Saadi, D., Shochet, M. J., Shojaii, S., Shrestha, S., Shulga, E., Shupe, M. A., Shushkevich, S., Sicho, P., Sidebo, P. E., Sidiropoulou, O., Sidorov, D., Sidoti, A., Siegert, F., Sijacki, Dj., Silva, J., Silver, Y., Silverstein, S. B., Simak, V., Simard, O., Simic, Lj., Simion, S., Simioni, E., Simmons, B., Simon, D., Sinervo, P., Sinev, N. B., Sioli, M., Siragusa, G., Sisakyan, A. N., Sivoklokov, S. Yu., Sjölin, J., Sjursen, T. B., Skinner, M. B., Skottowe, H. P., Skubic, P., Slater, M., Slavicek, T., Slawinska, M., Sliwa, K., Smakhtin, V., Smart, B. H., Smestad, L., Smirnov, S. Yu., Smirnov, Y., Smirnova, L. N., Smirnova, O., Smith, M. N. K., Smith, R. W., Smizanska, M., Smolek, K., Snesarev, A. A., Snidero, G., Snyder, S., Sobie, R., Socher, F., Soffer, A., Soh, D. A., Sokhrannyi, G., Solans, C. A., Solar, M., Solc, J., Soldatov, E. Yu., Soldevila, U., Solodkov, A. A., Soloshenko, A., Solovyanov, O. V., Solovyev, V., Sommer, P., Song, H. Y., Soni, N., Sood, A., Sopczak, A., Sopko, B., Sopko, V., Sorin, V., Sosa, D., Sosebee, M., Sotiropoulou, C. L., Soualah, R., Soukharev, A. M., South, D., Sowden, B. C., Spagnolo, S., Spalla, M., Spangenberg, M., Spanò, F., Spearman, W. R., Sperlich, D., Spettel, F., Spighi, R., Spigo, G., Spiller, L. A., Spousta, M., Spreitzer, T., Denis, R. D. St., Stabile, A., Staerz, S., Stahlman, J., Stamen, R., Stamm, S., Stanecka, E., Stanescu, C., Stanescu-Bellu, M., Stanitzki, M. M., Stapnes, S., Starchenko, E. A., Stark, J., Staroba, P., Starovoitov, P., Staszewski, R., Steinberg, P., Stelzer, B., Stelzer, H. J., Stelzer-Chilton, O., Stenzel, H., Stewart, G. A., Stillings, J. A., Stockton, M. C., Stoebe, M., Stoicea, G., Stolte, P., Stonjek, S., Stradling, A. R., Straessner, A., Stramaglia, M. E., Strandberg, J., Strandberg, S., Strandlie, A., Strauss, E., Strauss, M., Strizenec, P., Ströhmer, R., Strom, D. M., Stroynowski, R., Strubig, A., Stucci, S. A., Stugu, B., Styles, N. A., Su, D., Su, J., Subramaniam, R., Succurro, A., Sugaya, Y., Suk, M., Sulin, V. V., Sultansoy, S., Sumida, T., Sun, S., Sun, X., Sundermann, J. E., Suruliz, K., Susinno, G., Sutton, M. R., Suzuki, S., Svatos, M., Swiatlowski, M., Sykora, I., Sykora, T., Ta, D., Taccini, C., Tackmann, K., Taenzer, J., Taffard, A., Tafirout, R., Taiblum, N., Takai, H., Takashima, R., Takeda, H., Takeshita, T., Takubo, Y., Talby, M., Talyshev, A. A., Tam, J. Y. C., Tan, K. G., Tanaka, J., Tanaka, R., Tanaka, S., Tannenwald, B. B., Tannoury, N., Tapprogge, S., Tarem, S., Tarrade, F., Tartarelli, G. F., Tas, P., Tasevsky, M., Tashiro, T., Tassi, E., Tavares Delgado, A., Tayalati, Y., Taylor, F. E., Taylor, G. N., Taylor, W., Teischinger, F. A., Teixeira Dias Castanheira, M., Teixeira-Dias, P., Temming, K. K., Temple, D., Ten Kate, H., Teng, P. K., Teoh, J. J., Tepel, F., Terada, S., Terashi, K., Terron, J., Terzo, S., Testa, M., Teuscher, R. J., Theveneaux-Pelzer, T., Thomas, J. P., Thomas-Wilsker, J., Thompson, E. N., Thompson, P. D., Thompson, R. J., Thompson, A. S., Thomsen, L. A., Thomson, E., Thomson, M., Thun, R. P., Tibbetts, M. J., Ticse Torres, R. E., Tikhomirov, V. O., Tikhonov, Yu. A., Timoshenko, S., Tiouchichine, E., Tipton, P., Tisserant, S., Todome, K., Todorov, T., Todorova-Nova, S., Tojo, J., Tokár, S., Tokushuku, K., Tollefson, K., Tolley, E., Tomlinson, L., Tomoto, M., Tompkins, L., Toms, K., Torrence, E., Torres, H., Torró Pastor, E., Toth, J., Touchard, F., Tovey, D. R., Trefzger, T., Tremblet, L., Tricoli, A., Trigger, I. M., Trincaz-Duvoid, S., Tripiana, M. F., Trischuk, W., Trocmé, B., Troncon, C., Trottier-McDonald, M., Trovatelli, M., True, P., Truong, L., Trzebinski, M., Trzupek, A., Tsarouchas, C., Tseng, J. C-L., Tsiareshka, P. V., Tsionou, D., Tsipolitis, G., Tsirintanis, N., Tsiskaridze, S., Tsiskaridze, V., Tskhadadze, E. G., Tsukerman, I. I., Tsulaia, V., Tsuno, S., Tsybychev, D., Tudorache, A., Tudorache, V., Tuna, A. N., Tupputi, S. A., Turchikhin, S., Turecek, D., Turra, R., Turvey, A. J., Tuts, P. M., Tykhonov, A., Tylmad, M., Tyndel, M., Ueda, I., Ueno, R., Ughetto, M., Ugland, M., Ukegawa, F., Unal, G., Undrus, A., Unel, G., Ungaro, F. C., Unno, Y., Unverdorben, C., Urban, J., Urquijo, P., Urrejola, P., Usai, G., Usanova, A., Vacavant, L., Vacek, V., Vachon, B., Valderanis, C., Valencic, N., Valentinetti, S., Valero, A., Valery, L., Valkar, S., Valladolid Gallego, E., Vallecorsa, S., Valls Ferrer, J. A., Van Den Wollenberg, W., Van Der Deijl, P. C., van der Geer, R., van der Graaf, H., van Eldik, N., van Gemmeren, P., Van Nieuwkoop, J., van Vulpen, I., van Woerden, M. C., Vanadia, M., Vandelli, W., Vanguri, R., Vaniachine, A., Vannucci, F., Vardanyan, G., Vari, R., Varnes, E. W., Varol, T., Varouchas, D., Vartapetian, A., Varvell, K. E., Vazeille, F., Vazquez Schroeder, T., Veatch, J., Veloce, L. M., Veloso, F., Velz, T., Veneziano, S., Ventura, A., Ventura, D., Venturi, M., Venturi, N., Venturini, A., Vercesi, V., Verducci, M., Verkerke, W., Vermeulen, J. C., Vest, A., Vetterli, M. C., Viazlo, O., Vichou, I., Vickey, T., Vickey Boeriu, O. E., Viehhauser, G. H. A., Viel, S., Vigne, R., Villa, M., Villaplana Perez, M., Vilucchi, E., Vincter, M. G., Vinogradov, V. B., Vivarelli, I., Vives Vaque, F., Vlachos, S., Vladoiu, D., Vlasak, M., Vogel, M., Vokac, P., Volpi, G., Volpi, M., von der Schmitt, H., von Radziewski, H., von Toerne, E., Vorobel, V., Vorobev, K., Vos, M., Voss, R., Vossebeld, J. H., Vranjes, N., Vranjes Milosavljevic, M., Vrba, V., Vreeswijk, M., Vuillermet, R., Vukotic, I., Vykydal, Z., Wagner, P., Wagner, W., Wahlberg, H., Wahrmund, S., Wakabayashi, J., Walder, J., Walker, R., Walkowiak, W., Wang, C., Wang, F., Wang, H., Wang, H., Wang, J., Wang, J., Wang, K., Wang, R., Wang, S. M., Wang, T., Wang, T., Wang, X., Wanotayaroj, C., Warburton, A., Ward, C. P., Wardrope, D. R., Washbrook, A., Wasicki, C., Watkins, P. M., Watson, A. T., Watson, I. J., Watson, M. F., Watts, G., Watts, S., Waugh, B. M., Webb, S., Weber, M. S., Weber, S. W., Webster, J. S., Weidberg, A. R., Weinert, B., Weingarten, J., Weiser, C., Weits, H., Wells, P. S., Wenaus, T., Wengler, T., Wenig, S., Wermes, N., Werner, M., Werner, P., Wessels, M., Wetter, J., Whalen, K., Wharton, A. M., White, A., White, M. J., White, R., White, S., Whiteson, D., Wickens, F. J., Wiedenmann, W., Wielers, M., Wienemann, P., Wiglesworth, C., Wiik-Fuchs, L. A. M., Wildauer, A., Wilkens, H. G., Williams, H. H., Williams, S., Willis, C., Willocq, S., Wilson, A., Wilson, J. A., Wingerter-Seez, I., Winklmeier, F., Winter, B. T., Wittgen, M., Wittkowski, J., Wollstadt, S. J., Wolter, M. W., Wolters, H., Wosiek, B. K., Wotschack, J., Woudstra, M. J., Wozniak, K. W., Wu, M., Wu, M., Wu, S. L., Wu, X., Wu, Y., Wyatt, T. R., Wynne, B. M., Xella, S., Xu, D., Xu, L., Yabsley, B., Yacoob, S., Yakabe, R., Yamada, M., Yamaguchi, D., Yamaguchi, Y., Yamamoto, A., Yamamoto, S., Yamanaka, T., Yamauchi, K., Yamazaki, Y., Yan, Z., Yang, H., Yang, H., Yang, Y., Yao, W-M., Yasu, Y., Yatsenko, E., Yau Wong, K. H., Ye, J., Ye, S., Yeletskikh, I., Yen, A. L., Yildirim, E., Yorita, K., Yoshida, R., Yoshihara, K., Young, C., Young, C. J. S., Youssef, S., Yu, D. R., Yu, J., Yu, J. M., Yu, J., Yuan, L., Yuen, S. P. Y., Yurkewicz, A., Yusuff, I., Zabinski, B., Zaidan, R., Zaitsev, A. M., Zalieckas, J., Zaman, A., Zambito, S., Zanello, L., Zanzi, D., Zeitnitz, C., Zeman, M., Zemla, A., Zeng, Q., Zengel, K., Zenin, O., Ženiš, T., Zerwas, D., Zhang, D., Zhang, F., Zhang, H., Zhang, J., Zhang, L., Zhang, R., Zhang, X., Zhang, Z., Zhao, X., Zhao, Y., Zhao, Z., Zhemchugov, A., Zhong, J., Zhou, B., Zhou, C., Zhou, L., Zhou, L., Zhou, M., Zhou, N., Zhu, C. G., Zhu, H., Zhu, J., Zhu, Y., Zhuang, X., Zhukov, K., Zibell, A., Zieminska, D., Zimine, N. I., Zimmermann, C., Zimmermann, S., Zinonos, Z., Zinser, M., Ziolkowski, M., Živković, L., Zobernig, G., Zoccoli, A., zur Nedden, M., Zurzolo, G., and Zwalinski, L.
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- 2022
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9. Maximization of PV energy use and performance analysis of a stand-alone PV-hydrogen system
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Martinez Lopez, V.A., primary, Ziar, H., additional, Zeman, M., additional, and Isabella, O., additional
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- 2023
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10. Electrical performance of a fully reconfigurable series-parallel photovoltaic module
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Calcabrini, A. (author), Muttillo, M. (author), Zeman, M. (author), Manganiello, P. (author), Isabella, O. (author), Calcabrini, A. (author), Muttillo, M. (author), Zeman, M. (author), Manganiello, P. (author), and Isabella, O. (author)
- Abstract
Reconfigurable photovoltaic modules are a promising approach to improve the energy yield of partially shaded systems. So far, the feasibility of this concept has been evaluated through simulations or simplified experiments. In this work, we analyse the outdoor performance of a full-scale prototype of a series-parallel photovoltaic module with six reconfigurable blocks. Over a 4-month-long period, its performance was compared to a reference photovoltaic module with static interconnections and six bypass diodes. The results show that under partial shading, the reconfigurable module produced 10.2% more energy than the reference module. In contrast, under uniform illumination the energy yield of the reconfigurable PV module was 1.9% lower due to the additional losses introduced by its switching matrix. Finally, a modification in the reconfiguration algorithm is proposed to reduce the output current–voltage range of the module and simplify the design of module-level power converters while limiting the shading tolerance loss., Photovoltaic Materials and Devices
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- 2023
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11. Maximization of PV energy use and performance analysis of a stand-alone PV-hydrogen system
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Martinez Lopez, V.A. (author), Ziar, H. (author), Zeman, M. (author), Isabella, O. (author), Martinez Lopez, V.A. (author), Ziar, H. (author), Zeman, M. (author), and Isabella, O. (author)
- Abstract
The development of clean hydrogen and photovoltaic (PV) systems is lagging behind the goals set in the Net Zero Emissions scenario of the International Energy Agency. For this reason, efficient hydrogen production systems powered from renewable energy need to be deployed faster. This work presents an optimization procedure for a stand-alone, fully PV-powered alkaline electrolysis system. The approach is based on the Particle Swarm Optimization algorithm to obtain the best configuration of the PV plant that powers the electrolyzer and its compressor. The best configuration is determined with one of three indicators: cost, efficiency, or wasted energy. The PV plant needs to be oversized 2.63 times with respect to the electrolyzer to obtain minimum cost, while for high efficiency, this number increases by 2%. Additionally, the configuration that minimizes cost, wasted energy or maximizes efficiency does not correspond to the configuration that maximizes the annual PV yield. Optimizing for cost results also leads to the best operation of the electrolyzer at partial loads than optimizing for efficiency or wasted energy., Photovoltaic Materials and Devices
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- 2023
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12. A geographic information system-based large scale visibility assessment tool for multi-criteria photovoltaic planning on urban building roofs
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Zhou, Y. (author), Wilmink, D. (author), Zeman, M. (author), Isabella, O. (author), Ziar, H. (author), Zhou, Y. (author), Wilmink, D. (author), Zeman, M. (author), Isabella, O. (author), and Ziar, H. (author)
- Abstract
Integration of photovoltaics (PV) into the urban environment will play a major role in the energy transition. However, installing PV systems on building roofs can be challenging, particularly for monumental buildings with strict architectural and social value restrictions. Assessing roof surface visibility is, therefore, key to finding as much permitted roof surface area as possible that may be used for PV installation. In this study, a GIS-based large-scale visibility assessment tool is developed that can assist in evaluating roof visibility, using LiDAR, road networks, and cadastral data as inputs. The tool delivers multi-level outputs, including maps of roof binary visibility, roof visual amplitude, roof PV system layout, roof PV system AC yield, and roof PV module visibility. After optimization, an average speed of 0.12 s/m2 is achieved. For each roof surface, an additional sensitivity analysis has been conducted. This step determines the optimal values for two visibility analysis parameters: assessment range and observer spacing, balancing the computational demand and result accuracy. Application of this workflow to the monumental buildings on the TU Delft campus revealed that approximately 2.68 GWh/year of electricity could be harvested from imperceptible PV modules, while an additional 0.42 GWh/year of energy is attributed to PV modules with medium visibility, and 0.37 GWh/year of energy is associated with PV modules with high visibility. This modeling workflow supports the multi-criteria decision-making process for urban roof PV planning., Photovoltaic Materials and Devices
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- 2023
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13. Optical Simulation-Aided Design and Engineering of Monolithic Perovskite/Silicon Tandem Solar Cells
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Zhao, Y. (author), Datta, Kunal (author), Paggiaro, Giulia (author), Liu, Hanchen (author), Fardousi, Mohua (author), Santbergen, R. (author), Procel Moya, P.A. (author), Han, C. (author), Yang, G. (author), Weeber, A.W. (author), Zeman, M. (author), Mazzarella, L. (author), Isabella, O. (author), Zhao, Y. (author), Datta, Kunal (author), Paggiaro, Giulia (author), Liu, Hanchen (author), Fardousi, Mohua (author), Santbergen, R. (author), Procel Moya, P.A. (author), Han, C. (author), Yang, G. (author), Weeber, A.W. (author), Zeman, M. (author), Mazzarella, L. (author), and Isabella, O. (author)
- Abstract
Monolithic perovskite/c-Si tandem solar cells have attracted enormous research attention and have achieved efficiencies above 30%. This work describes the development of monolithic tandem solar cells based on silicon heterojunction (SHJ) bottom- and perovskite top-cells and highlights light management techniques assisted by optical simulation. We first engineered (i)a-Si:H passivating layers for (100)-oriented flat c-Si surfaces and combined them with various (n)a-Si:H, (n)nc-Si:H, and (n)nc-SiOx:H interfacial layers for SHJ bottom-cells. In a symmetrical configuration, a long minority carrier lifetime of 16.9 ms was achieved when combining (i)a-Si:H bilayers with (n)nc-Si:H (extracted at the minority carrier density of 1015 cm-3). The perovskite sub-cell uses a photostable mixed-halide composition and surface passivation strategies to minimize energetic losses at charge-transport interfaces. This allows tandem efficiencies above 23% (a maximum of 24.6%) to be achieved using all three types of (n)-layers. Observations from experimentally prepared devices and optical simulations indicate that both (n)nc-SiOx:H and (n)nc-Si:H are promising for use in high-efficiency tandem solar cells. This is possible due to minimized reflection at the interfaces between the perovskite and SHJ sub-cells by optimized interference effects, demonstrating the applicability of such light management techniques to various tandem structures., Photovoltaic Materials and Devices
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- 2023
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14. Strategies for realizing high-efficiency silicon heterojunction solar cells
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Zhao, Y. (author), Procel Moya, P.A. (author), Han, C. (author), Cao, L. (author), Yang, G. (author), Özkol, E. (author), Alcañiz, Alba (author), Kovačević, K. (author), Limodio, G. (author), Santbergen, R. (author), Smets, A.H.M. (author), Weeber, A.W. (author), Zeman, M. (author), Mazzarella, L. (author), Isabella, O. (author), Zhao, Y. (author), Procel Moya, P.A. (author), Han, C. (author), Cao, L. (author), Yang, G. (author), Özkol, E. (author), Alcañiz, Alba (author), Kovačević, K. (author), Limodio, G. (author), Santbergen, R. (author), Smets, A.H.M. (author), Weeber, A.W. (author), Zeman, M. (author), Mazzarella, L. (author), and Isabella, O. (author)
- Abstract
Silicon heterojunction (SHJ) solar cells have achieved a record efficiency of 26.81% in a front/back-contacted (FBC) configuration. Moreover, thanks to their advantageous high VOC and good infrared response, SHJ solar cells can be further combined with wide bandgap perovskite cells forming tandem devices to enable efficiencies well above 33%. In this study, we present strategies to realize high-efficiency SHJ solar cells through combined theoretical and experimental studies, starting from the optimization of Si-based thin-film layers to the implementation of electrodes with reduced indium and silver usage. Advanced opto-electrical simulations, which enable comprehensive theoretical understandings of the main physical mechanisms governing carriers’ collection and light management, provide clear pathways for device designs and experimental optimizations. We present the fabricated FBC-SHJ solar cells in both monofacial and bifacial configurations with the best efficiencies of 24.18% and 23.25%, respectively. We point out that to achieve optimum device performance, the compositional materials should be holistically optimized and evaluated as part of the contact stacks with adjacent layers. As an outlook beyond the classical FBC-SHJ solar cell architecture, we propose various novel SHJ-based solar cell architectures. Their potential performance was assessed and compared via rigorous opto-electrical simulations and a maximal efficiency of 27.60% was simulated for FBC-SHJ solar cells featuring localized contacts., Photovoltaic Materials and Devices, Electrical Engineering, Mathematics and Computer Science, QN/Kavli Nanolab Delft, Electrical Sustainable Energy
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- 2023
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15. Dynamic operation of water electrolyzers: A review for applications in photovoltaic systems integration
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Martinez Lopez, V.A. (author), Ziar, H. (author), Haverkort, J.W. (author), Zeman, M. (author), Isabella, O. (author), Martinez Lopez, V.A. (author), Ziar, H. (author), Haverkort, J.W. (author), Zeman, M. (author), and Isabella, O. (author)
- Abstract
This review provides a comprehensive overview of the dynamics of low-temperature water electrolyzers and their influence on coupling the three major technologies, alkaline, Proton Exchange Membrane (PEM) and, Anion Exchange Membrane (AEM) with photovoltaic (PV) systems. Hydrogen technology is experiencing considerable interest as a way to accelerate the energy transition. With no associated CO2 emissions and fast response, water electrolyzers are an attractive option for producing green hydrogen on an industrial scale. This can be seen by the ambitious goals and large-scale projects being announced for hydrogen, especially with solar energy dedicated entirely to drive the process. The electrical response of water electrolyzers is extremely fast, making the slower variables, such as temperature and pressure, the limiting factors for variable operation typically associated with PV-powered electrolysis systems. The practical solar-to-hydrogen efficiency of these systems is in the range of 10% even with a very high coupling factor exceeding 99% for directly coupled systems. The solar-to-hydrogen efficiency can be boosted with a battery, potentially sacrificing the cost. The intermittency of solar irradiance, rather than its variability is the biggest challenge for PV-hydrogen systems regarding operation and degradation., Photovoltaic Materials and Devices, Energy Technology, Electrical Sustainable Energy
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- 2023
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16. Optimal Design of Multilayer Optical Color Filters for Building-Integrated Photovoltaic (BIPV) Applications
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Ortiz Lizcano, J.C. (author), Villa, Simona (author), Zhou, Y. (author), Frantzi, Georgia (author), Vattis, Kyriakos (author), Calcabrini, A. (author), Yang, G. (author), Zeman, M. (author), Isabella, O. (author), Ortiz Lizcano, J.C. (author), Villa, Simona (author), Zhou, Y. (author), Frantzi, Georgia (author), Vattis, Kyriakos (author), Calcabrini, A. (author), Yang, G. (author), Zeman, M. (author), and Isabella, O. (author)
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Herein, the application of a comprehensive modeling framework that can help optimize the design of multilayered optical filters for coloring photovoltaic (PV) modules is presented based on crystalline silicon solar cells. To overcome technical issues related to the implementation of color filters (CFs) on PV modules, like glare and color instability, colorimetry metrics, such as the hue, chroma, luminance color space, and the quantitative concept of difference between two colors are extensively deployed. It is showcased in this work that designing colored modules with high hue and chroma stability is possible by using a front-side texturing with edged geometry, like V-shaped grooves and inverted pyramids, while obtaining colors with relatively high luminance values, indicating good brightness. Furthermore, it is argued that adapting the rear surface of the front glass with a random textured layout where the CF is applied can improve color and luminance stability without significant loss of chroma while eliminating glare. Finally, the models can be used to optimize the number of layers for a given CF, reducing unnecessary optical losses. Compared to a standard PV module, performance simulation of optimized, bright-colored PV modules predicts relative energy yield losses ranging from 7% to 25%., Photovoltaic Materials and Devices
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- 2023
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17. Developing an energy rating for bifacial photovoltaic modules
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Vogt, M.R. (author), Pilis, Giorgos (author), Zeman, M. (author), Santbergen, R. (author), Isabella, O. (author), Vogt, M.R. (author), Pilis, Giorgos (author), Zeman, M. (author), Santbergen, R. (author), and Isabella, O. (author)
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The photovoltaic (PV) module energy rating standard series IEC 61853 does not cover bifacial PV modules. However, the market share of bifacial PV modules has dramatically increased in recent years and is projected to grow. This work demonstrates how Parts 3 and 4 of the IEC 61853 standard could be extended to bifacial modules. First, we develop an irradiance model that uses the data already given in the standard IEC 61853-4 to calculate the irradiance on the rear side of the module. Second, we propose a way to extend the energy yield calculation algorithm IEC 61853-3 to include bifacial modules and make it available to the PV community. This rear irradiance and bifacial energy yield calculation procedure is tested using real outdoor measurements for a nine-month period with a root mean square difference between measured and simulated energy yield of 4.65%. To conclude, we investigate the impact of different climates and normalization on the bifacial module energy rating results., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2023
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18. Energy Loss Analysis of Two-Terminal Tandem PV Systems under Realistic Operating Conditions—Revealing the Importance of Fill Factor Gains
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Blom, Y. (author), Vogt, M.R. (author), Ruiz Tobon, C.M. (author), Santbergen, R. (author), Zeman, M. (author), Isabella, O. (author), Blom, Y. (author), Vogt, M.R. (author), Ruiz Tobon, C.M. (author), Santbergen, R. (author), Zeman, M. (author), and Isabella, O. (author)
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The tandem PV technology can potentially increase the efficiency of PV modules over 30%. To design efficient modules, a quantification of the different losses is important. Herein, a model for quantifying the energy loss mechanisms in PV systems under real-world operating conditions with a level of detail back to the components and their fundamental properties is presented. Totally, 17 losses are defined and divided into four categories (fundamental, optical, electrical, and system losses). As example, a system based on a > 29% two-terminal perovskite/silicon tandem cell is considered. The loss distribution at standard test conditions is compared to four geographical locations. The results show that the thermalization, reflection, and inverter losses increase by 1.2%, 1.1%, and 1.4%, respectively, when operating outdoors. Additionally, it is quantified how fill factor gains partly compensate the current mismatch losses. For example, a mismatch of 7.0% in photocurrent leads to a power mismatch of 1.2%. Therefore, the power mismatch should be used as indicator for mismatch losses instead of a current mismatch. Finally, herein, it is shown that solar tracking increases not only the in-plane irradiance but also the efficiency of the tandem module., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2023
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19. Individual yield nowcasting for residential PV systems
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Grzebyk, Daniel (author), Alcañiz Moya, A. (author), Donker, Jaap (author), Zeman, M. (author), Ziar, H. (author), Isabella, O. (author), Grzebyk, Daniel (author), Alcañiz Moya, A. (author), Donker, Jaap (author), Zeman, M. (author), Ziar, H. (author), and Isabella, O. (author)
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Due to the inherent uncertainty in photovoltaic (PV) energy generation, an accurate power forecasting is essential to ensure a reliable operation of PV systems and a safe electric grid. Machine learning (ML) techniques have gained popularity on the development of this task due to its increased accuracy. Most literature, however, focuses only on less than 5 PV systems during training process, which does not ensure generalization to unseen systems. When in presence of a large feet, regional forecasts are the norm. Nevertheless, none of these approaches are usable when it comes to monitoring residential PV systems. In this work, we propose a single ML model that is able to predict the individual power of a large fleet of 1102 PV systems. XGBoost algorithm was selected as the most suitable algorithm for the task of PV yield nowcasting due to its performance and ease of use. This algorithm obtains Mean Absolute Error (MAE) of 0.877 kWh (considering an average system size of 4.44 kWp) and Mean Absolute Percentage Error (MAPE) of 23% for hourly data aggregated to daily values. XGBoost predictions for individual PV systems are on average two times better than currently used commercial software. We discuss the lack of a suitable loss function that can combine absolute and relative errors for residential PV yield forecasting. We also point out the lack of an adequate metric to compute the error made on the predictions and provide hints on developing a suitable one., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2023
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20. Crystalline silicon solar cells with thin poly-SiOx carrier-selective passivating contacts for perovskite/c-Si tandem applications
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Singh, M. (author), Amarnath, A. (author), Wagner, Fabian (author), Zhao, Y. (author), Yang, G. (author), Mazzarella, L. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author), Singh, M. (author), Amarnath, A. (author), Wagner, Fabian (author), Zhao, Y. (author), Yang, G. (author), Mazzarella, L. (author), Weeber, A.W. (author), Zeman, M. (author), and Isabella, O. (author)
- Abstract
Single junction crystalline silicon (c-Si) solar cells are reaching their practical efficiency limit whereas perovskite/c-Si tandem solar cells have achieved efficiencies above the theoretical limit of single junction c-Si solar cells. Next to low-thermal budget silicon heterojunction architecture, high-thermal budget carrier-selective passivating contacts (CSPCs) based on polycrystalline-SiOx (poly-SiOx) also constitute a promising architecture for high efficiency perovskite/c-Si tandem solar cells. In this work, we present the development of c-Si bottom cells based on high temperature poly-SiOx CSPCs and demonstrate novel high efficiency four-terminal (4T) and two-terminal (2T) perovskite/c-Si tandem solar cells. First, we tuned the ultra-thin, thermally grown SiOx. Then we optimized the passivation properties of p-type and n-type doped poly-SiOx CSPCs. Here, we have optimized the p-type doped poly-SiOx CSPC on textured interfaces via a two-step annealing process. Finally, we integrated such bottom solar cells in both 4T and 2T tandems, achieving 28.1% and 23.2% conversion efficiency, respectively., Photovoltaic Materials and Devices, EKL Processing, Electrical Sustainable Energy
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- 2023
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21. Challenges of 'a new hybrid ecosystem': celebrities, fake news and Covid-19
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Zeman, Z, Geiger Zeman, M, and Topic, M
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The complex intertwining of mainstream and social media has resulted in the creation of a “new hybrid ecosystem” in which consumers are primarily engaged with ideas and news posted on social media, that are then transmitted as news in mainstream media (Wheeler 2018). In this new “hyper-connected environment” (Pepper 2018), “fake news” occupies a specific position. The concept of “fake news” is very complex, contradictory and ambivalent because it appears as an umbrella term covering various phenomena and different practices of which some are already known, while others are fairly new (Molina et al. 2021). The new communication environment and the role of fake news as part of it, may also be analysed through the celebrity phenomenon. This paper uses the method of discourse analysis to examine texts on various statements by celebrities about COVID-19, published on two web portals in Croatia (index.hr, 24sata.hr). It becomes clear that celebrities function as very potent sharers of fake news, since consumers of online content give great weight to their actions and statements. On the other hand, mainstream media often act as a corrective to social media, in their efforts to convincingly deny fake news and the celebrities that share them on social media.
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- 2022
22. Ray-optics study of gentle non-conformal texture morphologies for perovskite/silicon tandems
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Santbergen, R. (author), Vogt, M.R. (author), Mishima, Ryota (author), Hino, Masashi (author), Uzu, Hisashi (author), Adachi, Daisuke (author), Yamamoto, Kenji (author), Zeman, M. (author), Isabella, O. (author), Santbergen, R. (author), Vogt, M.R. (author), Mishima, Ryota (author), Hino, Masashi (author), Uzu, Hisashi (author), Adachi, Daisuke (author), Yamamoto, Kenji (author), Zeman, M. (author), and Isabella, O. (author)
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We investigate gentle front side textures for perovskite/silicon tandem solar cells. These textures enhance the absorption of sunlight, yet are sufficiently gentle to allow deposition of an efficient perovskite top cell. We present a tandem solar cell with such gentle texture, fabricated by Kaneka corporation, with an efficiency as high as 28.6%. We perform an extensive ray-optics study, exploring non-conformal textures at the front and rear side of the perovskite layer. Our results reveal that a gentle texture with steepness of only 23° can be more optically efficient than conventional textures with more than double that steepness. We also show that the observed anti-reflective effect of such gentle textures is not based a double bounce, but on light trapping by total internal reflection. As a result, the optical effects of the encapsulation layers play an important role, and have to be accounted for when evaluating the texture design for perovskite/silicon tandems., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2022
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23. Controllable Simultaneous Bifacial Cu-Plating for High-Efficiency Crystalline Silicon Solar Cells
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Han, C. (author), Yang, G. (author), Procel Moya, P.A. (author), O'Connor, D. (author), Zhao, Y. (author), Gopalakrishnan, Anirudh (author), Zhang, Xiaodan (author), Zeman, M. (author), Mazzarella, L. (author), Isabella, O. (author), Han, C. (author), Yang, G. (author), Procel Moya, P.A. (author), O'Connor, D. (author), Zhao, Y. (author), Gopalakrishnan, Anirudh (author), Zhang, Xiaodan (author), Zeman, M. (author), Mazzarella, L. (author), and Isabella, O. (author)
- Abstract
Bifacial (BF) copper-plated crystalline silicon solar cell is an attractive topic to concurrently reduce silver consumption and maintain good device performance. However, it is still challenging to realize a high aspect ratio (AR) of the metal fingers. Herein, a new type of hybrid-shaped Cu finger is electromagnetically fabricated in a BF plating process. Cyclic voltammetry is employed to disclose the electrochemical behaviors of cupric ions in monofacial and simultaneous BF Cu-plating processes, such that the controllability of the plating process could be assessed. The optimal hybrid Cu finger is composed of a rectangular bottom part and a round top part, such that an utmost effective AR value of 1.73 is reached. In BF Cu-plating, two sub-three-electrode electrochemical cells are employed to realize equal metal finger heights on both sides of the wafer. Compared to our low thermal-budget screen-printing metallization, the Cu-plated silicon heterojunction devices show both optical and electrical advantages (based on lab-scale tests). The champion BF Cu-plated device shows a front-side efficiency of 22.1% and a bifaciality factor of 0.99., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2022
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24. Mapping the photovoltaic potential of the roads including the effect of traffic
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Ferri, Carlotta (author), Ziar, H. (author), Nguyen, T.T. (author), van Lint, J.W.C. (author), Zeman, M. (author), Isabella, O. (author), Ferri, Carlotta (author), Ziar, H. (author), Nguyen, T.T. (author), van Lint, J.W.C. (author), Zeman, M. (author), and Isabella, O. (author)
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After developing the methodology, we applied it to the case of the Netherlands highways. We show that the average irradiation on the Dutch highway network is around 880 kWh/m2/y, 35% less than the potential of an optimally tilted conventional PV system in the south of the Netherlands. Covering the entire 1600 km of the Dutch highways network with solar road modules of poly c-Si, mono c-Si and CIGS would respectively generate 5.2 TWh/y, 6.6 TWh/y, and 3.4 TWh/y of DC electricity. This could be used to fully power the Dutch national public lighting demand. Moreover, to include the effect of traffic on these values, a model was developed to account for the energy potential reduction due to vehicles shading. Using real traffic data from two of the top-four busiest roads in the Netherlands, the A12 and A16, it was found that traffic accounts for an average of 3% reduction of solar road irradiation and DC yield potential. The maximum reduction of 9% was observed in particular locations, such as bridges and nearby ramp roads. The result of such mapping methodology could serve as a useful tool for research advisory, private industry, and governmental projects., Photovoltaic Materials and Devices, Transport and Planning, Electrical Sustainable Energy
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- 2022
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25. Exploring the benefits, challenges, and feasibility of integrating power electronics into c-Si solar cells
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van Nijen, D.A. (author), Manganiello, P. (author), Zeman, M. (author), Isabella, O. (author), van Nijen, D.A. (author), Manganiello, P. (author), Zeman, M. (author), and Isabella, O. (author)
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Power electronics traditionally plays a crucial role in conditioning the power of photovoltaic (PV) modules and connecting the systems to the electricity grid. Recently, PV module designs with more sub-module power electronics are gaining increased attention. These designs can offer higher reliability and improved resilience against non-uniform illumination. In this review, we explore an innovative method to facilitate sub-module power electronics, which is to integrate the power components into crystalline silicon (c-Si) PV cells. This approach has the potential to enable numerous design innovations. However, the fabrication processes of the integrated power electronics should be compatible with the PV cell fabrication methods. Moreover, only a limited amount of additional processing steps can be added with respect to standard solar cell manufacturing processes to achieve a cost-effective design. After reviewing previous research on this topic, we propose various new design possibilities for PV-cell-integrated diodes, transistors, capacitors, and inductors. Furthermore, we discuss the technical trade-offs and challenges that need to be overcome for successful industry adoption., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2022
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26. Erratum to: Sub-gap defect density characterization of molybdenum oxide: An annealing study for solar cell applications (Nano Research, (2020), 13, 12, (3416-3424), 10.1007/s12274-020-3029-9)
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Scire, D. (author), Procel Moya, P.A. (author), Gulino, Antonino (author), Isabella, O. (author), Zeman, M. (author), Crupi, Isodiana (author), Scire, D. (author), Procel Moya, P.A. (author), Gulino, Antonino (author), Isabella, O. (author), Zeman, M. (author), and Crupi, Isodiana (author)
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Ref. [56] was unfortunately wrong, Instead of [56] Corless, R. M.; Gonnet, G. H.; Hare, D. E. G.; Jeffrey, D. J.; Knuth, D. E. On the Lambert W function. Adv. Comput. Math. 1996, 5, 329–359. It should be changed to Biswas, R. K.; Khan, P.; Mukherjee, S.; Mukhopadhyay, A. K.; Ghosh, J.; Muraleedharan, K. Study of short range structure of amorphous Silica from PDF using Ag radiation in laboratory XRD system, RAMAN and NEXAFS. J. Non. Cryst. Solids 2018, 488, 1–9. Some entries in Table 2 were unfortunately misprinted., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2022
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27. Marketing communication of prevention measures during the pandemic in Croatia
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Topic, M, Geiger Zeman, M, Holy, M, Topic, M, Geiger Zeman, M, and Holy, M
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The COVID-19 pandemic has opened up a debate on official health communication and thus set a new norm in the healthcare marketing. In the focus of the analysis of this paper is marketing communication of the Croatian COVID-19 vaccine campaign Misli na druge – cijepi se! (Think of others – get vaccinated!) with the main research questions: how the public institutions in Croatia communicated the COVID-19 challenges and educated the public about vaccination as one of the prevention strategies; whether campaigns as official health communication have adopted the principles of creativity and how they used visual elements in the campaign. Findings show that the campaign adopted the principles of creativity as it used the antithesis in a campaign message, logo and testimonials, however, the campaign failed to reach the target vaccination numbers.
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- 2022
28. Multiple meanings of the face mask: Masking as the new social practice in the context of lockdown creativity and pandemic chic
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Topic, M, Geiger Zeman, M, Zeman, Z, Topic, M, Geiger Zeman, M, and Zeman, Z
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The global coronavirus-caused pandemic has affected the creative industries in many ways, including the fashion industry. Wearing masks in public as one of the recommended preventive measures has transformed the face mask into an important cultural object that has gained new meaning. The paper analyses the literature that points to several important topics: the new position of the fashion industry; sociological analyses of cultural objects with special emphasis on masks and disguise practices; new meanings of face masks in a pandemic context and the transformation of masks into an everyday clothing item that has become a creative challenge for fashion designers. The face mask has become a key cultural product and a design product whose function is not only utilitarian but also symbolic. Referring to the adaptability of the fashion industry and new trends in clothing, illustrative examples point to the potential of lockdown/pandemic creativity and outline new challenges for the fashion sector in terms of social and democratic potential of fashion and the possibility of transforming the system towards a slower and more sustainable model.
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- 2022
29. Raman spectroscopy of silicon with nanostructured surface
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Kadlečíková, Magdaléna (author), Vančo, Ľubomír (author), Breza, Juraj (author), Mikolášek, Miroslav (author), Hušeková, Kristína (author), Fröhlich, Karol (author), Procel Moya, P.A. (author), Zeman, M. (author), Isabella, O. (author), Kadlečíková, Magdaléna (author), Vančo, Ľubomír (author), Breza, Juraj (author), Mikolášek, Miroslav (author), Hušeková, Kristína (author), Fröhlich, Karol (author), Procel Moya, P.A. (author), Zeman, M. (author), and Isabella, O. (author)
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We compared the morphology and Raman response of nanoscale shaped surfaces of Si substrates versus monocrystalline Si. Samples were structured by reactive ion etching, and four of them were covered by a RuO2-IrO2 layer. Raman bands, centred at approx. 520 cm–1, belonging to samples processed by etching the Si surface have intensities higher by approximately one order of magnitude than those of reference non-etched samples. For nanostructured samples, the rise in the Raman signal was 12–14 ×, which is in agreement with the model of the electric field at the tips of Si due to their geometry. This phenomenon is related to the high absorption of excitation radiation. Nanostructured surfaces of samples containing a layer of RuO2-IrO2 give rise to the phenomenon of surface enhancement of the Raman response most likely due to the charge transfer at the interface between silicon and conductive oxides. The nanostructured surface of Si without a metal layer behaves as a SERS substrate and detects the analytes at a low concentration., Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2022
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30. Thermal Stable High-Efficiency Copper Screen Printed Back Contact Solar Cells
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Chen, N. (author), Rudolph, Dominik (author), Peter, Christoph (author), Zeman, M. (author), Isabella, O. (author), Rosen, Yitzchak (author), Grouchko, Michael (author), Shochet, Ofer (author), Mihailetchi, Valentin D. (author), Chen, N. (author), Rudolph, Dominik (author), Peter, Christoph (author), Zeman, M. (author), Isabella, O. (author), Rosen, Yitzchak (author), Grouchko, Michael (author), Shochet, Ofer (author), and Mihailetchi, Valentin D. (author)
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The high usage of silver in industrial solar cells may limit the growth of the solar industry. One solution is to replace Ag with copper. A screen printable Cu paste is used herein to metallize industrial interdigitated back contact (IBC) solar cells. A novel metallization structure is proposed for making solar cells. Cu paste is applied to replace the majority of the Ag used in IBC cells as busbars and fingers. Cu paste is evaluated for use as fingers, and solar cells are made to test conversion efficiency and reliability. The Cu paste achieves comparably low resistivity, and Cu paste printed cells demonstrate similar efficiency to Ag paste printed cells, with an average efficiency of 23%, and only 4.5 mg W−1 of Ag usage. Also, the solar cells are stable and no Cu in-diffusion is observed under damp heat (85 °C, 85% relative humidity) and thermal stress (200 °C) for 1000 h, respectively. All processes used in this study can be carried out with industrial equipment. These findings reveal a new application for Cu pastes and point to a new direction for reducing Ag utilization and cost., Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2022
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31. Device operation of P-ion-implanted n-BaSi2/p-Si heterojunction solar cells
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Aonuki, S. (author), Yamashita, Yudai (author), Limodio, G. (author), Narita, Shunsuke (author), Takayanagi, Kaori (author), Iwai, Ai (author), Toko, Kaoru (author), Zeman, M. (author), Isabella, O. (author), Suemasu, Takashi (author), Aonuki, S. (author), Yamashita, Yudai (author), Limodio, G. (author), Narita, Shunsuke (author), Takayanagi, Kaori (author), Iwai, Ai (author), Toko, Kaoru (author), Zeman, M. (author), Isabella, O. (author), and Suemasu, Takashi (author)
- Abstract
We formed phosphorous(P)-ion-implanted n-BaSi2 films on p-Si(111) substrates and demonstrated solar-cell functionality of the n-BaSi2/p-Si heterojunction under AM1.5 illumination. The BaSi2 films were grown by molecular beam epitaxy, followed by implantation of P ions to the BaSi2 films using PF3 gas at an energy of 10 keV and a dose of 1 × 1014 cm−2. Subsequent postannealing was conducted at 500°C in Ar for different durations (t = 30–480 s) to activate the P atoms. The diffusion coefficient for P atoms in BaSi2 was evaluated from the depth profiles of P atoms by secondary-ion mass spectrometry. The activation energies of lattice and grain boundary diffusion were found to be 1.1 ± 0.6 and 2.5 ± 0.6 eV, respectively. From the analysis of Raman and photoluminescence spectra, the ion implantation damage was recovered by the postannealing. For one treated sample with t = 120 s, the internal quantum efficiency reached 67% at a wavelength of 870 nm. This is the highest ever achieved for n-BaSi2/p-Si heterojunction solar cells. Ion implantation is thus applicable to BaSi2 films grown by any other method. This achievement thereby opens a new route for the formation of BaSi2 solar cells., Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2022
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32. Effect of Climate on Photovoltaic Yield Prediction Using Machine Learning Models
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Alcañiz Moya, A. (author), Lindfors, Anders V. (author), Zeman, M. (author), Ziar, H. (author), Isabella, O. (author), Alcañiz Moya, A. (author), Lindfors, Anders V. (author), Zeman, M. (author), Ziar, H. (author), and Isabella, O. (author)
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Machine learning is arising as a major solution for the photovoltaic (PV) power prediction. Despite the abundant literature, the effect of climate on yield predictions using machine learning is unknown. This work aims to find climatic trends by predicting the power of 48 PV systems around the world, equally divided into four climates. An extensive data gathering process is performed and open-data sources are prioritized. A website www.tudelft.nl/open-source-pv-power-databases has been created with all found open data sources for future research. Five machine learning algorithms and a baseline one have been trained for each PV system. Results show that the performance ranking of the algorithms is independent of climate. Systems in dry climates depict on average the lowest Normalized Root Mean Squared Error (NRMSE) of 47.6 %, while those in tropical present the highest of 60.2 %. In mild and continental climates the NRMSE is 51.6 % and 54.5 %, respectively. When using a model trained in one climate to predict the power of a system located in another climate, on average systems located in cold climates show a lower generalization error, with an additional NRMSE as low as 5.6 % depending on the climate of the test set. Robustness evaluations were also conducted that increase the validity of the results., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2022
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33. Low-breakdown-voltage solar cells for shading-tolerant photovoltaic modules
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Calcabrini, A. (author), Procel Moya, P.A. (author), Kambhampati, V. (author), Manganiello, P. (author), Muttillo, M. (author), Zeman, M. (author), Isabella, O. (author), Calcabrini, A. (author), Procel Moya, P.A. (author), Kambhampati, V. (author), Manganiello, P. (author), Muttillo, M. (author), Zeman, M. (author), and Isabella, O. (author)
- Abstract
The integration of photovoltaic (PV) technology in urban environments poses new challenges for the design of PV modules. In particular, the poor shading tolerance of conventional PV modules strongly limits the energy performance of urban PV systems. In this work, we analyze how interdigitated back-contact solar cells with low-breakdown voltages can help improve the shading tolerance of PV modules. Through detailed simulations, we show that the breakdown voltage can be tuned without significantly degrading the efficiency of the solar cell. Simulation results indicate that, under partial shading conditions, cells with a 0.3-V breakdown voltage could boost by 20% the annual yield of conventional crystalline silicon PV modules with three bypass diodes. These findings are supported by a four-month-long monitoring campaign of PV modules with different breakdown characteristics, which shows a specific yield gain of about 4% in PV modules with six bypass diodes., Photovoltaic Materials and Devices, Wind Energy, Electrical Sustainable Energy
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- 2022
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34. Concepts for heat utilization and passive cooling techniques to improve reliability and performance of Building Integrated Photovoltaics (BIPV)
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Ortiz Lizcano, J.C. (author), Calcabrini, A. (author), Santbergen, R. (author), Procel Moya, P.A. (author), Zeman, M. (author), Isabella, O. (author), Ortiz Lizcano, J.C. (author), Calcabrini, A. (author), Santbergen, R. (author), Procel Moya, P.A. (author), Zeman, M. (author), and Isabella, O. (author)
- Abstract
When integrated into urban environments, photovoltaic (PV) systems usually present operational temperatures that are significantly higher than those shown by rack-mounted systems. High operating temperatures are associated with reduced reliability of PV modules and significantly impact the electrical performance of solar cells. Utilizing the heat produced on PV modules or reducing operating temperatures can bolster their application within the building sector. We present the three main concepts studied to achieve these goals. First, a PV is a chimney concept that allows the use of the heat generated by the modules. Simulations for a PV chimney installed on a building in the Netherlands showed that although the heat quality produced inside its cavity was low, the potential use of the air mass flow for ventilation applications is promising. Additionally, we present two passive cooling solutions that can reduce the operating temperatures of PV modules: Optical filters and phase change materials. Experimental measurements in Delft showed that these solutions reduce the operating temperature of PV modules between 4 °C to 20 °C, particularly under high irradiance hours., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2022
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35. Study on the Effect of Irradiance Variability on the Efficiency of the Perturb-and-Observe Maximum Power Point Tracking Algorithm
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Martinez Lopez, V.A. (author), Žindžiūtė, U. (author), Ziar, H. (author), Zeman, M. (author), Isabella, O. (author), Martinez Lopez, V.A. (author), Žindžiūtė, U. (author), Ziar, H. (author), Zeman, M. (author), and Isabella, O. (author)
- Abstract
Irradiance variability is one of the main challenges for using photovoltaic energy. This variability affects the operation of maximum power point trackers (MPPT) causing energy losses. The logic of the Perturb-and-Observe MPPT algorithm is particularly sensitive to quick irradiance changes. We quantified the existing relation between irradiance variations and efficiency loss of the logic of the Perturb-and-Observe MPPT algorithm, along with the sensitivity of the MPPT to its control parameters. If the algorithm parameters are not tuned properly, its efficiency will drop to nearly 2%. Irradiance variability causes a systematic energy loss of the algorithm that can only be quantified by ignoring the hardware components. With this, we aim to improve the energy yield estimation by providing an additional efficiency loss to be considered in the calculations., Photovoltaic Materials and Devices, Electrical Sustainable Energy
- Published
- 2022
- Full Text
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36. Achieving 23.83% conversion efficiency in silicon heterojunction solar cell with ultra-thin MoOx hole collector layer via tailoring (i)a-Si:H/MoOx interface
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Cao, L. (author), Procel Moya, P.A. (author), Alcañiz Moya, A. (author), Yan, J. (author), Tichelaar, F.D. (author), Özkol, E. (author), Zhao, Y. (author), Han, C. (author), Yang, G. (author), Yao, Z. (author), Zeman, M. (author), Santbergen, R. (author), Mazzarella, L. (author), Isabella, O. (author), Cao, L. (author), Procel Moya, P.A. (author), Alcañiz Moya, A. (author), Yan, J. (author), Tichelaar, F.D. (author), Özkol, E. (author), Zhao, Y. (author), Han, C. (author), Yang, G. (author), Yao, Z. (author), Zeman, M. (author), Santbergen, R. (author), Mazzarella, L. (author), and Isabella, O. (author)
- Abstract
Thin films of transition metal oxides such as molybdenum oxide (MoOx) are attractive for application in silicon heterojunction solar cells for their potential to yield large short-circuit current density. However, full control of electrical properties of thin MoOx layers must be mastered to obtain an efficient hole collector. Here, we show that the key to control the MoOx layer quality is the interface between the MoOx and the hydrogenated intrinsic amorphous silicon passivation layer underneath. By means of ab initio modelling, we demonstrate a dipole at such interface and study its minimization in terms of work function variation to enable high performance hole transport. We apply this knowledge to experimentally tailor the oxygen content in MoOx by plasma treatments (PTs). PTs act as a barrier to oxygen diffusion/reaction and result in optimal electrical properties of the MoOx hole collector. With this approach, we can thin down the MoOx thickness to 1.7 nm and demonstrate short-circuit current density well above 40 mA/cm2 and a champion device exhibiting 23.83% conversion efficiency., Photovoltaic Materials and Devices, QN/Afdelingsbureau, Electrical Sustainable Energy
- Published
- 2022
- Full Text
- View/download PDF
37. Effects of (i)a-Si: H deposition temperature on high-efficiency silicon heterojunction solar cells
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Zhao, Y. (author), Procel Moya, P.A. (author), Smets, A.H.M. (author), Mazzarella, L. (author), Han, C. (author), Yang, G. (author), Cao, L. (author), Yao, Z. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author), Zhao, Y. (author), Procel Moya, P.A. (author), Smets, A.H.M. (author), Mazzarella, L. (author), Han, C. (author), Yang, G. (author), Cao, L. (author), Yao, Z. (author), Weeber, A.W. (author), Zeman, M. (author), and Isabella, O. (author)
- Abstract
Excellent surface passivation induced by (i)a-Si:H is critical to achieve high-efficiency silicon heterojunction (SHJ) solar cells. This is key for conventional single-junction cell applications but also for bottom cell application in tandem devices. In this study, we investigated the effects of (i)a-Si:H deposition temperature on passivation quality and SHJ solar cell performance. At the lower end of temperatures ranging from 140°C to 200°C, it was observed with Fourier-transform infrared spectroscopy (FTIR) that (i)a-Si:H films are less dense, thus hindering their surface passivation capabilities. However, with additional hydrogen plasma treatments (HPTs), those (i)a-Si:H layers deposited at lower temperatures exhibited significant improvements and better passivation qualities than their counterparts deposited at higher temperatures. On the other hand, even though we observed the highest VOCs for cells with (i)a-Si:H deposited at the lowest temperature (140°C), the related FFs are poorer as compared to their higher temperature counterparts. The optimum trade-off between VOC and FF for the SHJ cells was found with temperatures ranging from 160°C to 180°C, which delivered independently certified efficiencies of 23.71%. With a further improved p-layer that enables a FF of 83.3%, an efficiency of 24.18% was achieved. Thus, our study reveals two critical requirements for optimizing the (i)a-Si:H layers in high-efficiency SHJ solar cells: (i) excellent surface passivation quality to reduce losses induced by interface recombination and simultaneously (ii) less-defective (i)a-Si:H bulk to not disrupt the charge carrier collections., Photovoltaic Materials and Devices, Electrical Sustainable Energy
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- 2022
- Full Text
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38. Introducing a comprehensive physics-based modelling framework for tandem and other PV systems
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Vogt, M.R. (author), Ruiz Tobon, C.M. (author), Alcañiz Moya, A. (author), Procel Moya, P.A. (author), Blom, Y. (author), Nour El Din, A. (author), Stark, T. (author), Wang, Z. (author), Goma, E. Garcia (author), Etxebarria, J. G. (author), Ziar, H. (author), Zeman, M. (author), Santbergen, R. (author), Isabella, O. (author), Vogt, M.R. (author), Ruiz Tobon, C.M. (author), Alcañiz Moya, A. (author), Procel Moya, P.A. (author), Blom, Y. (author), Nour El Din, A. (author), Stark, T. (author), Wang, Z. (author), Goma, E. Garcia (author), Etxebarria, J. G. (author), Ziar, H. (author), Zeman, M. (author), Santbergen, R. (author), and Isabella, O. (author)
- Abstract
We introduce a novel simulation tool capable of calculating the energy yield of a PV system based on its fundamental material properties and using self-consistent models. Thus, our simulation model can operate without measurements of a PV device. It combines wave and ray optics and a dedicated semiconductor simulation to model the optoelectronic PV device properties resulting in the IV-curve. The system surroundings are described via spectrally resolved ray tracing resulting in a cell resolved irradiance distribution, and via the fluid dynamics-based thermal model, in the individual cell temperatures. A lumped-element model is used to calculate the IV-curves of each solar cell for every hour of the year. These are combined factoring in the interconnection to obtain the PV module IV-curves, which connect to the inverter for calculating the AC energy yield. In our case study, we compare two types of 2 terminal perovskite/silicon tandem modules with STC PV module efficiencies of 27.7% and 28.6% with a reference c-Si module with STC PV module efficiency of 20.9%. In four different climates, we show that tandem PV modules operate at 1–1.9 °C lower yearly irradiance weighted average temperatures compared to c-Si. We find that the effect of current mismatch is significantly overestimated in pure optical studies, as they do not account for fill factor gains. The specific yields in kWh/kWp of the tandem PV systems are between −2.7% and +0.4% compared to the reference c-Si system in all four simulated climates. Thus, we find that the lab performance of the simulated tandem PV system translates from the laboratory to outdoors comparable to c-Si systems., Photovoltaic Materials and Devices, Energie and Industrie, Electrical Sustainable Energy
- Published
- 2022
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39. Time-varying, ray tracing irradiance simulation approach for photovoltaic systems in complex scenarios with decoupled geometry, optical properties and illumination conditions
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Calcabrini, A. (author), Cardose, Ruben (author), Gribnau, David (author), Babal, Pavel (author), Manganiello, P. (author), Zeman, M. (author), Isabella, O. (author), Calcabrini, A. (author), Cardose, Ruben (author), Gribnau, David (author), Babal, Pavel (author), Manganiello, P. (author), Zeman, M. (author), and Isabella, O. (author)
- Abstract
The accurate computation of the irradiance incident on the surface of photovoltaic modules is crucial for the simulation of the energy yield of a photovoltaic system. Depending on the geometrical complexity of the surroundings, different approaches are commonly employed to calculate the irradiance on the photovoltaic system. In this article, we introduce a backward ray tracing simulation approach to calculate the irradiance on photovoltaic systems in geometrically complex scenarios. We explain how the repetition of time-consuming simulation steps can be avoided with the proposed approach by storing a selection of the results from the most computationally expensive parts of the problem, and we show that the irradiance calculated with the proposed approach is in good agreement with the results of Radiance, a well-established irradiance simulation tool. Furthermore, we present an experimental validation carried out using a pyranometer and a reference cell over a period of 6 months in a complex scenario, which shows errors lower than 5% in the calculation of the daily irradiation. Finally, we compare high-resolution spectral simulations with measurements taken with a spectroradiometer under different sky conditions. The proposed approach is particularly well-suited for the simulation of bifacial and tandem photovoltaic modules in complex urban environments, for it enables the efficient simulation of high-resolution spectral irradiance in scenarios with time-varying reflectance properties., Photovoltaic Materials and Devices, Electrical Sustainable Energy
- Published
- 2022
- Full Text
- View/download PDF
40. Erratum to: Sub-gap defect density characterization of molybdenum oxide: An annealing study for solar cell applications (Nano Research, (2020), 13, 12, (3416-3424), 10.1007/s12274-020-3029-9)
- Author
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Scire, D., Procel Moya, P.A., Gulino, Antonino, Isabella, O., Zeman, M., and Crupi, Isodiana
- Abstract
Ref. [56] was unfortunately wrong, Instead of [56] Corless, R. M.; Gonnet, G. H.; Hare, D. E. G.; Jeffrey, D. J.; Knuth, D. E. On the Lambert W function. Adv. Comput. Math. 1996, 5, 329–359. It should be changed to Biswas, R. K.; Khan, P.; Mukherjee, S.; Mukhopadhyay, A. K.; Ghosh, J.; Muraleedharan, K. Study of short range structure of amorphous Silica from PDF using Ag radiation in laboratory XRD system, RAMAN and NEXAFS. J. Non. Cryst. Solids 2018, 488, 1–9. Some entries in Table 2 were unfortunately misprinted.
- Published
- 2022
41. Concepts for heat utilization and passive cooling techniques to improve reliability and performance of Building Integrated Photovoltaics (BIPV)
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Ortiz Lizcano, J.C., Calcabrini, A., Santbergen, R., Procel Moya, P.A., Zeman, M., and Isabella, O.
- Subjects
General Medicine ,General Chemistry - Abstract
When integrated into urban environments, photovoltaic (PV) systems usually present operational temperatures that are significantly higher than those shown by rack-mounted systems. High operating temperatures are associated with reduced reliability of PV modules and significantly impact the electrical performance of solar cells. Utilizing the heat produced on PV modules or reducing operating temperatures can bolster their application within the building sector. We present the three main concepts studied to achieve these goals. First, a PV is a chimney concept that allows the use of the heat generated by the modules. Simulations for a PV chimney installed on a building in the Netherlands showed that although the heat quality produced inside its cavity was low, the potential use of the air mass flow for ventilation applications is promising. Additionally, we present two passive cooling solutions that can reduce the operating temperatures of PV modules: Optical filters and phase change materials. Experimental measurements in Delft showed that these solutions reduce the operating temperature of PV modules between 4 °C to 20 °C, particularly under high irradiance hours.
- Published
- 2022
42. Sub-gap defect density characterization of molybdenum oxide: An annealing study for solar cell applications (vol 13, pg 3416, 2020)
- Author
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Scire, D, Procel, P, Gulino, A, Isabella, O, Zeman, M, and Crupi, I
- Subjects
molybdenum oxide - Published
- 2022
43. Exploring the benefits, challenges, and feasibility of integrating power electronics into c-Si solar cells
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van Nijen, D.A., Manganiello, P., Zeman, M., and Isabella, O.
- Subjects
shading tolerance ,photovoltaics ,partial shading ,power electronics ,crystalline silicon ,solar energy ,urban PV ,photovoltatronics - Abstract
Power electronics traditionally plays a crucial role in conditioning the power of photovoltaic (PV) modules and connecting the systems to the electricity grid. Recently, PV module designs with more sub-module power electronics are gaining increased attention. These designs can offer higher reliability and improved resilience against non-uniform illumination. In this review, we explore an innovative method to facilitate sub-module power electronics, which is to integrate the power components into crystalline silicon (c-Si) PV cells. This approach has the potential to enable numerous design innovations. However, the fabrication processes of the integrated power electronics should be compatible with the PV cell fabrication methods. Moreover, only a limited amount of additional processing steps can be added with respect to standard solar cell manufacturing processes to achieve a cost-effective design. After reviewing previous research on this topic, we propose various new design possibilities for PV-cell-integrated diodes, transistors, capacitors, and inductors. Furthermore, we discuss the technical trade-offs and challenges that need to be overcome for successful industry adoption.
- Published
- 2022
44. Effect of blue and red monochromatic light during incubation on the early post-embryonic development of immune responses in broiler chicken
- Author
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Kankova, Z., primary, Drozdova, A., additional, Hodova, V., additional, and Zeman, M., additional
- Published
- 2022
- Full Text
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45. Interactions of Renin-Angiotensin System and COVID-19: The Importance of Daily Rhythms in ACE2, ADAM17 and TMPRSS2 Expression
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ZLACKÁ, J, primary, STEBELOVÁ, K, additional, ZEMAN, M, additional, and HERICHOVÁ, I, additional
- Published
- 2021
- Full Text
- View/download PDF
46. Study of Photonuclear Reactions in 165Ho Nucleus at the LINAC-200 Accelerator.
- Author
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Khushvaktov, J. H., Stegailov, V. I., Adam, J., Kobets, V. V., Solnyshkin, A. A., Svoboda, J., Teterev, Yu. G., Tichy, P., Tyutyunnikov, S. I., Vrzalova, J., Yuldashev, B. S., and Zeman, M.
- Abstract
The cross sections for the reactions
165 Ho(γ, n)164 Ho,165 Ho(γ, 3n)162m Ho,165 Ho(γ, 4n)161 Ho,165 Ho(γ, 5n)160m1 Ho,165 Ho(γ, 5n)160 Ho, and165 Ho(γ, 6n)159 Ho were experimentally determined in the energy range from 50 to 110 MeV. Also, calculations were performed using the Geant4 code and the Talys program to determine the cross section of reactions in holmium samples. Calculation results are compared with the obtained experimental results. The dependence of the isomeric ratio160m1 Ho/160 Ho on the electron energy has been measured. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF
47. Battery-less uncertainty-based control of a stand-alone PV-electrolyzer system.
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Martinez Lopez, V.A., Isabella, O., Zeman, M., and Ziar, H.
- Subjects
- *
MAXIMUM power point trackers , *PHOTOVOLTAIC power systems , *SPECTRAL irradiance , *ENERGY dissipation , *FUZZY logic , *ARTIFICIAL intelligence - Abstract
Solar photovoltaic (PV) energy is variable. The output power can change considerably in a matter of minutes, imposing challenges on the control of systems connected downstream. The power from these systems can be smoothed using electric storage, potentially increasing the system cost. An alternative is to deliberately curtail the power before it starts to change. This strategy relies on ultra-short-term forecasting to determine the curtailment point. Unfortunately, forecasting is prone to errors and high uncertainty even in the very short-term, leading to control errors. We propose an active power curtailment control strategy for a stand-alone solar photovoltaic system powering an electrolyzer. Our work's novelty relies on the controller's ability to deal with large forecasting errors and high uncertainty, combining artificial intelligence for predicting the power ramps and fuzzy logic to account for imperfect prediction. We validated our approach using a hardware emulator of the photovoltaic system, power converter and electrolyzer. Under clear sky conditions, the curtailment results in unnecessary energy loss, while under variable irradiance, the controller successfully smooths the power ramps within 10% of the PV system's nominal power. Although our approach was designed for a stand-alone system, its concept can be directly applied to grid-connected systems as well. • Application of forecasting for power smoothing. • Uncertainty-based prediction. • Control decision considering the uncertainty. • Power ramp smoothing without electric storage. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
48. Development of metal contacts with screen printing for n+ polysilicon/SiO𝑥 passivated silicon solar cells
- Author
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Chaudhary, A., Zeman, M., van Swaaij, R.A.C.M.M., and Delft University of Technology
- Abstract
The continued reliance on fossil fuels to satisfy the world energy demand is leading to climate change, accelerating the melting of polar ice shelf, and is dealing irreversible damage to the flora and fauna of earth, to name few of the adverse effects from fossil fuel utilisation. In addition to not being renewable, fossil-fuel resources are also limited. Therefore these resources cannot meet the energy demand at some point in future. The most plausible way is to utilise renewable sources of energy to meet the increasing demand of energy. The Sun, our closest star is the answer to this demand. Utilising the abundant solar radiation arriving at earth to generate electricity is a great way. A photovoltaic (PV) solar cell can achieve this by converting the incident sunlight directly to electricity.....
- Published
- 2023
49. High-Mobility TCO-Based Contacting Schemes for c-Si Solar Cells
- Author
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Han, Can, Zeman, M., Zhang, Xiaodan, Isabella, O., and Delft University of Technology
- Subjects
bifacial copper-plating ,indium use reduction ,transparent conductive oxide (TCO) ,c-Si solar cells - Abstract
In the efficiency-driven photovoltaic (PV) industry, the market dominating crystalline silicon (c-Si) technology has been developing towards PV devices with carrier-selective passivating contacts (CSPCs). Especially, the silicon heterojunction (SHJ) solar cell, based on hydrogenated amorphous silicon (a-Si:H) contact stacks, and the poly-Si solar cell, based on ultrathin SiOx/poly-Si passivating contacts, pave the way for power conversion efficiencies above 26%, approaching the theoretical limit of the c-Si solar cell. In case of front/back-contacted (FBC) architectures, to minimize the optical parasitic absorption at the emitter and/or surface field side(s), thin doped silicon layers are normally applied, which exhibit high sheet resistance. Accordingly, transparent conductive oxide (TCO) layers are required to ensure sufficient lateral carrier transport towards the metal electrodes. However, problems still exist in contacting schemes for high-efficiency solar cell design towards future multi-terawatt production of PV modules, regarding the development of TCO layer with high carrier mobility (μ), its integration into specific device structures, and more importantly, the material availability. In this work, we present three types of TCO materials. They are tin-, fluorine- and tungsten-doped indium oxide layers, namely, ITO, IFO, and IWO. RF magnetron sputtering approach has been utilized to deposit the films. The TCOs are integrated into both low thermal-budget SHJ and high thermal-budget poly-Si solar cells. Further, to address the sustainability implication related to indiumconsumption, we propose a strategy of bifacial SHJ solar cell with reduced TCO use. Meanwhile, to reduce silver (Ag) consumption, as well as to reach good solar cell performance in our laboratory, we have developed a platformfor bifacial copper (Cu)-platingmetallization approach. Specific results are summarized as follows...
- Published
- 2022
- Full Text
- View/download PDF
50. Time-restricted feeding does not improve daily rhythms in locomotion and drinking disrupted by artificial light at night.
- Author
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Rumanova VS, Foppen E, Okuliarova M, Zeman M, and Kalsbeek A
- Abstract
Exposure to artificial light at night (ALAN) disrupts natural darkness and desynchronizes daily rhythms in physiological processes and behavior. Previously, in rats, we have shown that dim ALAN disturbed the central circadian control and the temporal organization of behavior, and hormonal and metabolic pathways. The measurements of undisturbed daily behavioral (locomotor activity, feeding and drinking) patterns revealed reduced amplitudes and a transitory activity peak in the middle of the light (i.e. resting) period. Recent studies indicated that time-restricted feeding during the active period (TRFd) can strengthen daily rhythms and improve metabolic health. Therefore, the aim of our study was to prevent the dim ALAN-induced attenuation of daily behavioral rhythms by applying TRFd. Male Wistar rats were kept in a 12/12 light/dark cycle in metabolic cages for one week with free access to food and water. After acclimation, rats were divided into two groups: 1) ad libitum food or 2) time-restricted food during the dark period. After one week, both groups were exposed to dim ALAN for two weeks. Despite the enhanced amplitude of the daily feeding rhythm in TRFd animals, ALAN still suppressed the rhythm of locomotor activity, induced the extra peak during the resting period and reduced the bimodal pattern during the night. Furthermore, TRFd did not prevent the drop in anticipatory thirst caused by ALAN at the end of the active period. In conclusion, TRFd was not able to fully prevent the weakning of daily behavioral rhythms by dim ALAN., Competing Interests: Declaration of competing interest The authors have no conflict of interest to disclose., (Copyright © 2024. Published by Elsevier Inc.)
- Published
- 2024
- Full Text
- View/download PDF
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