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High-Performance, Transparent, Dye-Sensitized Solar Cells for See-Through Photovoltaic Windows

Authors

  • Kun Zhang,

    1. Photovoltaic Materials Unit and NIMS Saint-Gobain, Center of Excellence for Advanced Materials, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
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  • Chuanjiang Qin,

    1. Photovoltaic Materials Unit and NIMS Saint-Gobain, Center of Excellence for Advanced Materials, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
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  • Xudong Yang,

    1. Photovoltaic Materials Unit and NIMS Saint-Gobain, Center of Excellence for Advanced Materials, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
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  • Ashraful Islam,

    1. Photovoltaic Materials Unit and NIMS Saint-Gobain, Center of Excellence for Advanced Materials, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
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  • Shufang Zhang,

    1. Photovoltaic Materials Unit and NIMS Saint-Gobain, Center of Excellence for Advanced Materials, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
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  • Han Chen,

    1. State Key Laboratory of Metal Matrix Composites, Shanghai Jiaotong University, Shanghai, China
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  • Liyuan Han

    Corresponding author
    1. Photovoltaic Materials Unit and NIMS Saint-Gobain, Center of Excellence for Advanced Materials, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
    2. State Key Laboratory of Metal Matrix Composites, Shanghai Jiaotong University, Shanghai, China
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Abstract

Dye-sensitized solar cells (DSCs) have attracted great interest as one of the most promising photovoltaic technologies, and transparent DSCs show potential applications as photovoltaic windows. However, the competition between light absorption for photocurrent generation and light transmittance for obtaining high transparency limits the performance of transparent DSCs. Here, transparent DSCs exhibiting a high light transmittance of 60.3% and high energy conversion efficiency (3.66%) are reported. The strategy is to create a cocktail system composed of ultraviolet and near-infrared dye sensitizers that selectively and efficiently harvest light in the invisible or low-eye-sensitivity region while transmitting light in high-eye-sensitivity regions. This new design provides a reasonable approach for realizing high efficiency and transparency DSCs that have potential applications as photovoltaic windows.

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