Phenoxazine Derivative Operates as an Efficient Surface-Grafted Molecular Relay to Enhance the Performance and Stability of CdS- and CdSe-Sensitized TiO2 Solar Cells
We report on a new phenoxazine derivative, 10-butyl-phenoxazine-3-carboxylic acid (BPCA), that we designed to operate as a molecular relay in semiconductor-sensitized solar cells (SSCs). After BPCA surface modification and in the presence of a cobalt-bipyridyl complex acting as a redox mediator, bot...
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sg-ntu-dr.10356-863252020-03-07T12:31:29Z Phenoxazine Derivative Operates as an Efficient Surface-Grafted Molecular Relay to Enhance the Performance and Stability of CdS- and CdSe-Sensitized TiO2 Solar Cells Shen, Chao Wang, Xingzhu Tang, Shasha Courté, Marc Fichou, Denis School of Physical and Mathematical Sciences Cadmium Energy Conversion We report on a new phenoxazine derivative, 10-butyl-phenoxazine-3-carboxylic acid (BPCA), that we designed to operate as a molecular relay in semiconductor-sensitized solar cells (SSCs). After BPCA surface modification and in the presence of a cobalt-bipyridyl complex acting as a redox mediator, both TiO2/CdS/BPCA and TiO2/CdSe/BPCA SSCs exhibit enhanced photovoltaic performance and stability. In particular, the power conversion efficiencies of CdS and CdSe-based solar cells are improved by 90 % and 57 %, respectively. Furthermore, after 300 s the JSC of TiO2/CdS/BPCA SSCs is stabilized at 30 % of its initial value, while in the same time CdS-based devices retain only 1 % of their initial JSC. The origin of the improvement arises from the excellent electron-donating property of BPCA and its role as a powerful molecular relay in non-polysulfide based SSCs. MOE (Min. of Education, S’pore) NRF (Natl Research Foundation, S’pore) 2017-11-08T03:27:41Z 2019-12-06T16:20:24Z 2017-11-08T03:27:41Z 2019-12-06T16:20:24Z 2017 Journal Article Shen, C., Wang, X., Tang, S., Courté, M., & Fichou, D. (2017). Phenoxazine Derivative Operates as an Efficient Surface-Grafted Molecular Relay to Enhance the Performance and Stability of CdS- and CdSe-Sensitized TiO2 Solar Cells. ChemPhysChem, 18(10), 1302-1307. 1439-4235 https://hdl.handle.net/10356/86325 http://hdl.handle.net/10220/44004 10.1002/cphc.201700238 en ChemPhysChem © 2017 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim. |
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Cadmium Energy Conversion Shen, Chao Wang, Xingzhu Tang, Shasha Courté, Marc Fichou, Denis Phenoxazine Derivative Operates as an Efficient Surface-Grafted Molecular Relay to Enhance the Performance and Stability of CdS- and CdSe-Sensitized TiO2 Solar Cells |
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We report on a new phenoxazine derivative, 10-butyl-phenoxazine-3-carboxylic acid (BPCA), that we designed to operate as a molecular relay in semiconductor-sensitized solar cells (SSCs). After BPCA surface modification and in the presence of a cobalt-bipyridyl complex acting as a redox mediator, both TiO2/CdS/BPCA and TiO2/CdSe/BPCA SSCs exhibit enhanced photovoltaic performance and stability. In particular, the power conversion efficiencies of CdS and CdSe-based solar cells are improved by 90 % and 57 %, respectively. Furthermore, after 300 s the JSC of TiO2/CdS/BPCA SSCs is stabilized at 30 % of its initial value, while in the same time CdS-based devices retain only 1 % of their initial JSC. The origin of the improvement arises from the excellent electron-donating property of BPCA and its role as a powerful molecular relay in non-polysulfide based SSCs. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Shen, Chao Wang, Xingzhu Tang, Shasha Courté, Marc Fichou, Denis |
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Article |
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Shen, Chao Wang, Xingzhu Tang, Shasha Courté, Marc Fichou, Denis |
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Shen, Chao |
title |
Phenoxazine Derivative Operates as an Efficient Surface-Grafted Molecular Relay to Enhance the Performance and Stability of CdS- and CdSe-Sensitized TiO2 Solar Cells |
title_short |
Phenoxazine Derivative Operates as an Efficient Surface-Grafted Molecular Relay to Enhance the Performance and Stability of CdS- and CdSe-Sensitized TiO2 Solar Cells |
title_full |
Phenoxazine Derivative Operates as an Efficient Surface-Grafted Molecular Relay to Enhance the Performance and Stability of CdS- and CdSe-Sensitized TiO2 Solar Cells |
title_fullStr |
Phenoxazine Derivative Operates as an Efficient Surface-Grafted Molecular Relay to Enhance the Performance and Stability of CdS- and CdSe-Sensitized TiO2 Solar Cells |
title_full_unstemmed |
Phenoxazine Derivative Operates as an Efficient Surface-Grafted Molecular Relay to Enhance the Performance and Stability of CdS- and CdSe-Sensitized TiO2 Solar Cells |
title_sort |
phenoxazine derivative operates as an efficient surface-grafted molecular relay to enhance the performance and stability of cds- and cdse-sensitized tio2 solar cells |
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2017 |
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https://hdl.handle.net/10356/86325 http://hdl.handle.net/10220/44004 |
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1681045849845530624 |