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Enhanced Performance of Dye-Sensitized Solar Cells Using Solution-Based In Situ Synthesis and Fabrication of Cu2ZnSnSe4 Nanocrystal Counter Electrode

Authors

  • Sheng-Jie Yuan,

    1. The Key Laboratory for Special Functional Materials of MOE, Henan University, Kaifeng, 475004 (P. R. China), Fax: (+86) 378-3881358
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    • These authors contributed equally to this work.

  • Dr. Zheng-Ji Zhou,

    1. The Key Laboratory for Special Functional Materials of MOE, Henan University, Kaifeng, 475004 (P. R. China), Fax: (+86) 378-3881358
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    • These authors contributed equally to this work.

  • Ze-Liang Hou,

    1. The Key Laboratory for Special Functional Materials of MOE, Henan University, Kaifeng, 475004 (P. R. China), Fax: (+86) 378-3881358
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  • Dr. Wen-Hui Zhou,

    1. The Key Laboratory for Special Functional Materials of MOE, Henan University, Kaifeng, 475004 (P. R. China), Fax: (+86) 378-3881358
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  • Rong-Yue Yao,

    1. The Key Laboratory for Special Functional Materials of MOE, Henan University, Kaifeng, 475004 (P. R. China), Fax: (+86) 378-3881358
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  • Yang Zhao,

    1. The Key Laboratory for Special Functional Materials of MOE, Henan University, Kaifeng, 475004 (P. R. China), Fax: (+86) 378-3881358
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  • Prof. Dr. Si-Xin Wu

    Corresponding author
    1. The Key Laboratory for Special Functional Materials of MOE, Henan University, Kaifeng, 475004 (P. R. China), Fax: (+86) 378-3881358
    • The Key Laboratory for Special Functional Materials of MOE, Henan University, Kaifeng, 475004 (P. R. China), Fax: (+86) 378-3881358
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Abstract

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On the bright side: A solution-based strategy was developed for in situ synthesis and film deposition of Cu2ZnSnSe4 nanocrystal films (samples a–d). The obtained Cu2ZnSnSe4 nanocrystal films can be used as an effective counter-electrode (CE) material to replace Pt, and yield low-cost, high-efficiency dye-sensitized solar cells (DSSCs). The assembled solar cell devices exhibit an efficiency of 7.82 % under 1 sun irradiation (see figure).

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