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11. One-step CZT electroplating from alkaline solution on flexible Mo foil for CZTS absorber

Author

Marchi, C, Panzeri, G, Pedrazzetti, L, Khalil, M, Lucotti, A, Parravicini, J, Acciarri, M, Binetti, S, Magagnin, L, Marchi C., Panzeri G., Pedrazzetti L., Khalil M. I., Lucotti A., Parravicini J., Acciarri M., Binetti S., Magagnin L., Marchi, C, Panzeri, G, Pedrazzetti, L, Khalil, M, Lucotti, A, Parravicini, J, Acciarri, M, Binetti, S, Magagnin, L, Marchi C., Panzeri G., Pedrazzetti L., Khalil M. I., Lucotti A., Parravicini J., Acciarri M., Binetti S., and Magagnin L.

Abstract

In this work, Cu-Zn-Sn (CZT) is co-electrodeposited onto a flexible Mo substrate exploiting an alkaline bath (pH 10). The plating solution is studied by cyclic voltammetry, highlighting the effects of potassium pyrophosphate (K4P2O7) and EDTA-Na2 on the electrochemical behavior and stability of the metallic ionic species. The optimized synthesis results in a homogeneous precursor layer, with composition Cu 44 ± 2 at. %, Zn 28 ± 1 at. %, and Sn 28 ± 2 at. %. Soft and reactive annealing are employed respectively to promote intermetallic phase formation and sulfurization of the precursor to obtain CZTS. Microstructural (XRD, Raman), morphological (SEM), and compositional (EDX, XRF) characterization is carried out on CZT and CZTS films, showing a minor presence of secondary phases. Finally, photo-assisted water splitting tests are performed considering a CZTS/CdS/Pt photoelectrode, showing a photocurrent density of 1.01 mA cm−2 at 0 V vs. RHE under 1 sun illumination. Graphical abstract: [Figure not available: see fulltext.]

Published
2021

12. Serum and cerebrospinal fluid concentrations of PCSK9 and hydroxysterols in patients with cognitive impairment

Author

Papotti, B., primary, Bertolotti, M., additional, Marchi, C., additional, Adorni, M.P., additional, Chiari, A., additional, Bedin, R., additional, Lupo, M.G., additional, Elviri, L., additional, Remaggi, G., additional, Baldelli, E., additional, Lancellotti, G., additional, Mussi, C., additional, Bernini, F., additional, Ferri, N., additional, and Zimetti, F., additional

Published
2022
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16. P164 Nutritional status and circulating levels of fat-soluble vitamins in cystic fibrosis: cross-sectional analysis and effect of elexacaftor/tezacaftor/ivacaftor

Author

Francalanci, M., primary, Taccetti, G., additional, Fevola, C., additional, Di Rosa, G., additional, Cavicchi, M.C., additional, Galici, V., additional, Neri, A.S., additional, Terlizzi, V., additional, Bianchimani, C., additional, Campana, S., additional, Dolce, D., additional, Marchi, C., additional, Ravenni, N., additional, Camera, E., additional, Pierattini, V., additional, and Roselli, E., additional

Published
2022
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31. Effect of high-pressure hydrogen gas on fracture of austenitic steels

Author

Marchi, C. San, Balch, D.K., Nibur, K., and Somerday, B.P.

Subjects
Engineering and manufacturing industries
Abstract

Applications requiring the containment and transportation of hydrogen gas at pressures greater than 70 MPa are anticipated in the evolving hydrogen economy infrastructure. Since hydrogen is known to alter the mechanical properties of materials, data are needed to guide the selection of materials for structural components. The objective of this study is to characterize the role of yield strength, microstructural orientation, and small concentrations of ferrite on hydrogen-assisted fracture in two austenitic stainless steels: 21Cr--6Ni-9Mn (21-6-9) and 22Cr-13Ni-5Mn (22-13-5). The testing methodology involves exposure of tensile specimens to high-pressure hydrogen gas at elevated temperature in order to precharge the specimens with hydrogen, and subsequently testing the specimens in laboratory air to measure strength and ductility. In all cases, the alloys remain ductile despite precharging to hydrogen concentrations of ~1 at. %, as demonstrated by reduction in area values between 30% and 60% and fracture modes dominated by microvoid processes. Low concentrations of ferrite and moderate increases in yield strength do not exacerbate hydrogen-assisted fracture in 21-6-9 and 22-13-5, respectively. Microstructural orientation has a pronounced effect on ductility in 22-13-5 due to the presence of aligned second-phase particles. [DOI: 10.1115/1.2967833]

Published
2008

45. Contributor contact details

Author

Walker, Gavin, primary, Ekins, Paul, additional, Bellaby, Paul, additional, Somerday, B.P., additional, Marchi, C. San, additional, Dedrick, Daniel E., additional, Hauback, Bjørn C., additional, Ross, D.K., additional, Gray, Evan, additional, Íñiguez, Jorge, additional, Anderson, Paul A., additional, Bénard, Pierre, additional, Chahine, Richard, additional, Lin, Xiang, additional, Jia, Junhua, additional, Champness, Neil R., additional, Chandra, Dhanesh, additional, Grant, D., additional, Jensen, Craig, additional, Wang, Y, additional, Chou, Mei-Yin, additional, Nakamori, Y., additional, Orimo, S., additional, Gregory, Duncan H., additional, Ichikawa, Masaru, additional, Vegge, Tejs, additional, Sørensen, R.Z., additional, Klerke, A., additional, Hummelshøj, J.S., additional, Johannessen, T., additional, Nørskov, J.K., additional, and Christensen, C.H., additional

Published
2008
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