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15 results on '"Xie, Haibing"'

3. Functionalized carbon dots on TiO2 for perovskite photovoltaics and stable photoanodes for water splitting

Author

Ministerio de Economía, Industria y Competitividad (España), European Commission, Gobierno de Aragón, Ansón Casaos, Alejandro [0000-0002-3134-8566], Hernández-Ferrer, Javier [0000-0002-6586-6935], Vallan, Lorenzo [0000-0001-5267-4849], Xie, Haibing [0000-0002-5070-2882], Lira-Cantú, Mónica [0000-0002-3393-7436], Benito, Ana M. [0000-0002-8654-7386], Maser, Wolfgang K. [0000-0003-4253-0758], Ansón Casaos, Alejandro, Hernández-Ferrer, Javier, Vallan, Lorenzo, Xie, Haibing, Lira-Cantú, Mónica, Benito, Ana M., Maser, Wolfgang K., Ministerio de Economía, Industria y Competitividad (España), European Commission, Gobierno de Aragón, Ansón Casaos, Alejandro [0000-0002-3134-8566], Hernández-Ferrer, Javier [0000-0002-6586-6935], Vallan, Lorenzo [0000-0001-5267-4849], Xie, Haibing [0000-0002-5070-2882], Lira-Cantú, Mónica [0000-0002-3393-7436], Benito, Ana M. [0000-0002-8654-7386], Maser, Wolfgang K. [0000-0003-4253-0758], Ansón Casaos, Alejandro, Hernández-Ferrer, Javier, Vallan, Lorenzo, Xie, Haibing, Lira-Cantú, Mónica, Benito, Ana M., and Maser, Wolfgang K.

Abstract

Various types of fluorescent carbon nanoparticles, often called carbon dots (CDs), are synthesized by different polycondensation methods: microwave irradiation, hydrothermal conditions or solution chemistry at ambient temperature with subsequent chemical functionalization. The CDs are deposited on TiO2 films to be probed as electron transport layers in perovskite photovoltaics and the anode for photoelectrochemical water splitting. Nitrogen CDs, which do not contain oxygen, lead to an increase of around 50 mV in the open circuit voltage of perovskite solar cells. All the CD types produce an improved photocurrent in water splitting, particularly CDs that are functionalized with thiol groups and butyl chains. It is demonstrated that the modified electrode is stable under continuous operation. Other electrochemical characteristics of the electrode, such as the voltammogram shape, onset potentials and open circuit potentials, remain nearly unchanged upon the deposition of CDs. Only the incident photon to current conversion efficiency improves clearly, extending the absorption range by around 20 nm towards longer wavelengths. This study provides new data about mechanisms and electrode arrangements for improving the performance of n-type semiconductors in photovoltaic cells and photoelectrochemical hydrogen production.

Published
2020

7. Single-cell RNA Sequencing Reveals Thoracolumbar Vertebra Heterogeneity and Rib-genesis in Pigs

Author

Li, Jianbo, primary, Wang, Ligang, additional, Yu, Dawei, additional, Hao, Junfeng, additional, Zhang, Longchao, additional, Adeola, Adeniyi C., additional, Mao, Bingyu, additional, Gao, Yun, additional, Wu, Shifang, additional, Zhu, Chunling, additional, Zhang, Yongqing, additional, Ren, Jilong, additional, Mu, Changgai, additional, Irwin, David M., additional, Wang, Lixian, additional, Hai, Tang, additional, Xie, Haibing, additional, and Zhang, Yaping, additional

Published
2021
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8. Decoupling the effects of defects on efficiency and stability through phosphonates in stable halide perovskite solar cells

Author

Xie, Haibing, primary, Wang, Zaiwei, additional, Chen, Zehua, additional, Pereyra, Carlos, additional, Pols, Mike, additional, Gałkowski, Krzysztof, additional, Anaya, Miguel, additional, Fu, Shuai, additional, Jia, Xiaoyu, additional, Tang, Pengyi, additional, Kubicki, Dominik Józef, additional, Agarwalla, Anand, additional, Kim, Hui-Seon, additional, Prochowicz, Daniel, additional, Borrisé, Xavier, additional, Bonn, Mischa, additional, Bao, Chunxiong, additional, Sun, Xiaoxiao, additional, Zakeeruddin, Shaik Mohammed, additional, Emsley, Lyndon, additional, Arbiol, Jordi, additional, Gao, Feng, additional, Fu, Fan, additional, Wang, Hai I., additional, Tielrooij, Klaas-Jan, additional, Stranks, Samuel D., additional, Tao, Shuxia, additional, Grätzel, Michael, additional, Hagfeldt, Anders, additional, and Lira-Cantu, Monica, additional

Published
2021
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10. Assessment of Chemical and Electronic Surface Properties of the Cu2ZnSn(SSe)4 After Different Etching Procedures by Synchrotron-based Spectroscopies

Author

Olar, Tetiana, primary, Lauermann, Iver, additional, Xie, Haibing, additional, Neuschitzer, Markus, additional, Saucedo, Edgardo, additional, Calvet, Wolfram, additional, Steigert, Alexander, additional, Ümsür, Bünyamin, additional, Chacko, Binoy, additional, Parvan, Vladimir, additional, Gorgoi, Mihaela, additional, Senkovskiy, Boris, additional, and Lux-Steiner, Martha Ch., additional

Published
2015
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14. Decoupling the effects of defects on efficiency and stability through phosphonates in stable halide perovskite solar cells

Author

Xie, Haibing, Wang, Zaiwei, Chen, Zehua, Pereyra, Carlos, Pols, Mike, Gałkowski, Krzysztof, Anaya, Miguel, Fu, Shuai, Jia, Xiaoyu, Tang, Pengyi, Kubicki, Dominik Józef, Agarwalla, Anand, Kim, Hui-Seon, Prochowicz, Daniel, Borrisé, Xavier, Bonn, Mischa, Bao, Chunxiong, Sun, Xiaoxiao, Zakeeruddin, Shaik Mohammed, Emsley, Lyndon, Arbiol, Jordi, Gao, Feng, Fu, Fan, Wang, Hai I, Tielrooij, Klaas-Jan, Stranks, Samuel D, Tao, Shuxia, Grätzel, Michael, Hagfeldt, Anders, and Lira-Cantu, Monica

Subjects
3403 Macromolecular and Materials Chemistry, 34 Chemical Sciences, 3406 Physical Chemistry, 7 Affordable and Clean Energy, 7. Clean energy
Abstract

The understanding of defects is of paramount importance for the development of stable halide perovskite solar cells (PSCs). However, isolating their distinctive effects on the device efficiency and stability is currently a challenge. Here, we report that adding the organic molecule 3- phosphonopropionic acid (H3pp) to the halide perovskite precursor solution results in unchanged overall optoelectronic performance while having a tremendous impact on the stability of the halide perovskite by means of ion immobilization. As a result, we obtained PSCs with ~21 % efficiency and outstanding operational stability, retaining nearly 100 % of the initial efficiency after 1000 h at the maximum power point under simulated AM1.5 illumination. The strong interaction between the perovskite and the H3pp molecule through two types of hydrogen bonds (H… I and O…H) from the phosphonate group allows immobilization of ions that leads to remarkable device stability. This binding mode results in shallow point defect passivation that has a significant impact on the device stability but not on the nonradiative recombination and device efficiency. We expect that decoupling the effect of defects on the efficiency and stability will have important implications for the current understanding and advancement of operational PSCs.

15. Functionalized carbon dots on TiO2 for perovskite photovoltaics and stable photoanodes for water splitting

Author

Alejandro Ansón-Casaos, Javier Hernández-Ferrer, Haibing Xie, Ana M. Benito, Wolfgang K. Maser, Monica Lira-Cantu, Lorenzo Vallan, Ministerio de Economía, Industria y Competitividad (España), European Commission, Gobierno de Aragón, Ansón Casaos, Alejandro, Hernández-Ferrer, Javier, Vallan, Lorenzo, Xie, Haibing, Lira-Cantú, Mónica, Benito, Ana M., Maser, Wolfgang K., Ansón Casaos, Alejandro [0000-0002-3134-8566], Hernández-Ferrer, Javier [0000-0002-6586-6935], Vallan, Lorenzo [0000-0001-5267-4849], Xie, Haibing [0000-0002-5070-2882], Lira-Cantú, Mónica [0000-0002-3393-7436], Benito, Ana M. [0000-0002-8654-7386], and Maser, Wolfgang K. [0000-0003-4253-0758]

Subjects
Carbon nanoparticles, Materials science, Renewable hydrogen, Energy Engineering and Power Technology, 02 engineering and technology, 010402 general chemistry, Electrochemistry, 01 natural sciences, Solar energy, Photovoltaics, Perovskite (structure), Photocurrent, Renewable Energy, Sustainability and the Environment, business.industry, Open-circuit voltage, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 0104 chemical sciences, Anode, Fuel Technology, Sustainability, Chemical engineering, Electrode, Titanium dioxide, Water splitting, 0210 nano-technology, business
Abstract

10 figures, 1 table, Various types of fluorescent carbon nanoparticles, often called carbon dots (CDs), are synthesized by different polycondensation methods: microwave irradiation, hydrothermal conditions or solution chemistry at ambient temperature with subsequent chemical functionalization. The CDs are deposited on TiO2 films to be probed as electron transport layers in perovskite photovoltaics and the anode for photoelectrochemical water splitting. Nitrogen CDs, which do not contain oxygen, lead to an increase of around 50 mV in the open circuit voltage of perovskite solar cells. All the CD types produce an improved photocurrent in water splitting, particularly CDs that are functionalized with thiol groups and butyl chains. It is demonstrated that the modified electrode is stable under continuous operation. Other electrochemical characteristics of the electrode, such as the voltammogram shape, onset potentials and open circuit potentials, remain nearly unchanged upon the deposition of CDs. Only the incident photon to current conversion efficiency improves clearly, extending the absorption range by around 20 nm towards longer wavelengths. This study provides new data about mechanisms and electrode arrangements for improving the performance of n-type semiconductors in photovoltaic cells and photoelectrochemical hydrogen production., This work has been funded by the Spanish MINEICO under the project ENE2016-79282-C5-1-R (AEI/FEDER, UE), the Government of Aragón (Grupo reconocido T03-17R) and associated EU Regional Development Funds (DGA/FEDER, UE).

Published
2021
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