Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/86325
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
Authors: Shen, Chao
Wang, Xingzhu
Tang, Shasha
Courté, Marc
Fichou, Denis
Keywords: Cadmium
Energy Conversion
Issue Date: 2017
Source: 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.
Series/Report no.: ChemPhysChem
Abstract: 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.
URI: https://hdl.handle.net/10356/86325
http://hdl.handle.net/10220/44004
ISSN: 1439-4235
DOI: http://dx.doi.org/10.1002/cphc.201700238
Rights: © 2017 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

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