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Low-Cost Copper Zinc Tin Sulfide Counter Electrodes for High-Efficiency Dye-Sensitized Solar Cells

Authors

  • Xukai Xin,

    1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332 (USA)
    2. Department of Materials Science and Engineering, Iowa State University, Ames, IA 50011 (USA)
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  • Dr. Ming He,

    1. The Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai, 200433 (P.R. China)
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  • Wei Han,

    1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332 (USA)
    2. Department of Materials Science and Engineering, Iowa State University, Ames, IA 50011 (USA)
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  • Jaehan Jung,

    1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332 (USA)
    2. Department of Materials Science and Engineering, Iowa State University, Ames, IA 50011 (USA)
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  • Prof. Zhiqun Lin

    Corresponding author
    1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332 (USA)
    2. Department of Materials Science and Engineering, Iowa State University, Ames, IA 50011 (USA)
    • School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332 (USA)
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  • We gratefully acknowledge support from the DOE Ames Lab Seed Funding.

Abstract

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A copper zinc tin sulfide (CZTS) semiconductor can be used as an effective counter-electrode (CE) material in place of platinum metal, yielding low-cost, high-efficiency dye-sensitized solar cells (DSSCs). CZTS nanocrystals were synthesized and then spin-coated on fluorine-doped tin oxide (FTO) glass. After selenization, the power conversion efficiency of the resulting DSSC was comparable that with a Pt CE.

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