| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Analysis of Electron Recombination in Dye Sensitized Solar Cells Based on the Forward Bias Dependence of Dark Current and Electroluminescence Characterization |
| XIAO Wen-Bo**, LIU Wei-Qing, HE Xing-Dao |
Key Laboratory of Non Destructive Testing (Ministry of Education), Nanchang Hangkong University, Nanchang 330063
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| Cite this article: |
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XIAO Wen-Bo, LIU Wei-Qing, HE Xing-Dao 2013 Chin. Phys. Lett. 30 108801 |
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Abstract The current-voltage and electroluminescence characteristics of dye-sensitized solar cells (DSSCs) are investigated under forward dc bias in a dark environment at room temperature. The results show that the presence of dyes can play an important role in improving device performance, and also produce defects at the TiO2/dye/electrolyte interfaces, which dominate the electron-hole recombination process and become a limiting factor in obtaining high-efficiency DSSCs. The goodness of fit between measured and calculated data supports these conclusions.
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Received: 16 May 2013
Published: 21 November 2013
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| PACS: |
88.40.H-
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(Solar cells (photovoltaics))
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72.20.Jv
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(Charge carriers: generation, recombination, lifetime, and trapping)
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78.60.Fi
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(Electroluminescence)
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