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A supramolecular approach to improve the performance and operational stability of all-perovskite tandem solar cells

Author

Listed:
  • Xinxin Lian

    (Fudan University
    Fudan University
    Yiwu Research Institute of Fudan University)

  • Mingjing Jin

    (Shenzhen University of Advanced Technology (SUAT)
    Chinese Academy of Sciences)

  • Weideren Dai

    (Shenzhen University of Advanced Technology (SUAT)
    Hubei University)

  • Yuanjiang Lv

    (Xi’an Jiaotong University)

  • Ming Luo

    (Fudan University
    Fudan University)

  • Ying Hu

    (Fudan University
    Fudan University)

  • Zhijie Wang

    (Fudan University
    Fudan University)

  • Haiyun Li

    (Fudan University
    Fudan University)

  • Chunyu Xu

    (Fudan University
    Fudan University)

  • Dongrui Jiang

    (Fudan University
    Fudan University)

  • Hao Min

    (Nanjing Tech University)

  • Yifan Chen

    (Fudan University
    Fudan University)

  • Jin Chang

    (Nanjing Tech University)

  • Tzu-Sen Su

    (University of Science and Technology)

  • Fei Ma

    (Xi’an Jiaotong University)

  • Yang Bai

    (Shenzhen University of Advanced Technology (SUAT)
    Chinese Academy of Sciences)

  • Hong Zhang

    (Fudan University
    Fudan University
    Yiwu Research Institute of Fudan University)

  • Xiaoliang Mo

    (Fudan University
    Fudan University
    Yiwu Research Institute of Fudan University)

  • Junhao Chu

    (Fudan University
    Fudan University
    Yiwu Research Institute of Fudan University)

Abstract

Wide-bandgap perovskite is pivotal as a photoactive layer in the top cell of prevailing tandem solar cells. However, the intrinsic instability of wide-bandgap perovskite solar cells is predominantly attributed to the vacancy defects caused by multiple ion migration. Here, we incorporate an ether ring super-molecule into perovskite. This supramolecular approach effectively manipulates the crystallization kinetics and suppresses the halide segregation under illumination by tuning the coordination of halides toward monovalent cations and lead ions. As a result, the supramolecular engineered 1.77 eV perovskite solar cells achieve a champion power conversion efficiency of 21.01% with an outstanding operational stability, retaining 95% of initial efficiency after 1000 h σof maximum-power-point tracking test. Meanwhile, the two-terminal all-perovskite tandem solar cells achieve the champion efficiency of 28.44% (certified 27.92%). This work paves an avenue to improve the film quality and illumination stability of mixed halide wide-bandgap perovskites with a supramolecular approach.

Suggested Citation

  • Xinxin Lian & Mingjing Jin & Weideren Dai & Yuanjiang Lv & Ming Luo & Ying Hu & Zhijie Wang & Haiyun Li & Chunyu Xu & Dongrui Jiang & Hao Min & Yifan Chen & Jin Chang & Tzu-Sen Su & Fei Ma & Yang Bai , 2025. "A supramolecular approach to improve the performance and operational stability of all-perovskite tandem solar cells," Nature Communications, Nature, vol. 16(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-62391-9
    DOI: 10.1038/s41467-025-62391-9
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