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Novel symmetrical bifacial flexible CZTSSe thin film solar cells for indoor photovoltaic applications

Author

Listed:
  • Hui Deng

    (Fuzhou University)

  • Quanzhen Sun

    (Fuzhou University)

  • Zhiyuan Yang

    (Fuzhou University)

  • Wangyang Li

    (Fuzhou University)

  • Qiong Yan

    (Fuzhou University)

  • Caixia Zhang

    (Fuzhou University
    Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering)

  • Qiao Zheng

    (Fuzhou University
    Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering)

  • Xinghui Wang

    (Fuzhou University)

  • Yunfeng Lai

    (Fuzhou University
    Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering)

  • Shuying Cheng

    (Fuzhou University
    Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering)

Abstract

Environment-friendly flexible Cu2ZnSn(S,Se)4 (CZTSSe) solar cells show great potentials for indoor photovoltaic market. Indoor lighting is weak and multi-directional, thus the researches of photovoltaic device structures, techniques and performances face new challenges. Here, we design symmetrical bifacial CZTSSe solar cells on flexible Mo-foil substrate to efficiently harvest the indoor energy. Such devices are fabricated by double-sided deposition techniques to ensure bifacial consistency and save cost. We report 9.3% and 9% efficiencies for the front and back sides of the flexible CZTSSe solar cell under the standard sun light. Considering the indoor environment, we verify weak-light response performance of the devices under LED illumination and flexibility properties after thousands of bending. Bifacial CZTSSe solar cells in parallel achieve the superposition of double-sided output current from multi-directional light, significantly enhancing the area utilization rate. The present results and methods are expected to expand indoor photovoltaic applications.

Suggested Citation

  • Hui Deng & Quanzhen Sun & Zhiyuan Yang & Wangyang Li & Qiong Yan & Caixia Zhang & Qiao Zheng & Xinghui Wang & Yunfeng Lai & Shuying Cheng, 2021. "Novel symmetrical bifacial flexible CZTSSe thin film solar cells for indoor photovoltaic applications," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23343-1
    DOI: 10.1038/s41467-021-23343-1
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    Cited by:

    1. Sohani, Ali & Cornaro, Cristina & Shahverdian, Mohammad Hassan & Pierro, Marco & Moser, David & Nižetić, Sandro & Karimi, Nader & Li, Larry K.B. & Doranehgard, Mohammad Hossein, 2023. "Building integrated photovoltaic/thermal technologies in Middle Eastern and North African countries: Current trends and future perspectives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 182(C).
    2. Liang Wu & Qian Wang & Tao-Tao Zhuang & Guo-Zhen Zhang & Yi Li & Hui-Hui Li & Feng-Jia Fan & Shu-Hong Yu, 2022. "A library of polytypic copper-based quaternary sulfide nanocrystals enables efficient solar-to-hydrogen conversion," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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