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Sub-1.4eV bandgap inorganic perovskite solar cells with long-term stability

Author

Listed:
  • Mingyu Hu

    (Kunming University of Science and Technology
    Brown University)

  • Min Chen

    (Brown University)

  • Peijun Guo

    (Argonne National Laboratory)

  • Hua Zhou

    (Argonne National Laboratory)

  • Junjing Deng

    (Argonne National Laboratory)

  • Yudong Yao

    (Argonne National Laboratory)

  • Yi Jiang

    (Argonne National Laboratory)

  • Jue Gong

    (Brown University)

  • Zhenghong Dai

    (Brown University)

  • Yunxuan Zhou

    (Kunming University of Science and Technology)

  • Feng Qian

    (Kunming University of Science and Technology)

  • Xiaoyu Chong

    (Kunming University of Science and Technology)

  • Jing Feng

    (Kunming University of Science and Technology)

  • Richard D. Schaller

    (Argonne National Laboratory
    Northwestern University)

  • Kai Zhu

    (National Renewable Energy Laboratory)

  • Nitin P. Padture

    (Brown University)

  • Yuanyuan Zhou

    (Brown University)

Abstract

State-of-the-art halide perovskite solar cells have bandgaps larger than 1.45 eV, which restricts their potential for realizing the Shockley-Queisser limit. Previous search for low-bandgap (1.2 to 1.4 eV) halide perovskites has resulted in several candidates, but all are hybrid organic-inorganic compositions, raising potential concern regarding device stability. Here we show the promise of an inorganic low-bandgap (1.38 eV) CsPb0.6Sn0.4I3 perovskite stabilized via interface functionalization. Device efficiency up to 13.37% is demonstrated. The device shows high operational stability under one-sun-intensity illumination, with T80 and T70 lifetimes of 653 h and 1045 h, respectively (T80 and T70 represent efficiency decays to 80% and 70% of the initial value, respectively), and long-term shelf stability under nitrogen atmosphere. Controlled exposure of the device to ambient atmosphere during a long-term (1000 h) test does not degrade the efficiency. These findings point to a promising direction for achieving low-bandgap perovskite solar cells with high stability.

Suggested Citation

  • Mingyu Hu & Min Chen & Peijun Guo & Hua Zhou & Junjing Deng & Yudong Yao & Yi Jiang & Jue Gong & Zhenghong Dai & Yunxuan Zhou & Feng Qian & Xiaoyu Chong & Jing Feng & Richard D. Schaller & Kai Zhu & N, 2020. "Sub-1.4eV bandgap inorganic perovskite solar cells with long-term stability," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-019-13908-6
    DOI: 10.1038/s41467-019-13908-6
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    Cited by:

    1. Zhenghao Long & Xiao Qiu & Chak Lam Jonathan Chan & Zhibo Sun & Zhengnan Yuan & Swapnadeep Poddar & Yuting Zhang & Yucheng Ding & Leilei Gu & Yu Zhou & Wenying Tang & Abhishek Kumar Srivastava & Cunji, 2023. "A neuromorphic bionic eye with filter-free color vision using hemispherical perovskite nanowire array retina," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Chee, A. Kuan-Way, 2023. "On current technology for light absorber materials used in highly efficient industrial solar cells," Renewable and Sustainable Energy Reviews, Elsevier, vol. 173(C).

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