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Efficient and stable tin perovskite solar cells enabled by amorphous-polycrystalline structure

Author

Listed:
  • Xiao Liu

    (Shanghai Jiao Tong University
    National Institute for Materials Science)

  • Yanbo Wang

    (Shanghai Jiao Tong University)

  • Tianhao Wu

    (Shanghai Jiao Tong University)

  • Xin He

    (National Institute for Materials Science)

  • Xiangyue Meng

    (National Institute for Materials Science)

  • Julien Barbaud

    (Shanghai Jiao Tong University)

  • Han Chen

    (Shanghai Jiao Tong University)

  • Hiroshi Segawa

    (University of Tokyo)

  • Xudong Yang

    (Shanghai Jiao Tong University)

  • Liyuan Han

    (Shanghai Jiao Tong University
    National Institute for Materials Science
    Zhengzhou University
    University of Tsukuba)

Abstract

Tin perovskite solar cells (TPSCs) have triggered intensive research as a promising candidate for lead-free perovskite solar cells. However, it is still challenging to obtain efficient and stable TPSCs because of the low defects formation energy and the oxidation of bivalent tin; Here, we report a TPSC with a stable amorphous-polycrystalline structure, which is composed of a tin triple-halide amorphous layer and cesium-formamidinium tin iodide polycrystals. This structure effectively blocks the outside oxygen, moisture and also suppresses the ion diffusion inside the devices. In addition, its energy level benefits the charge extraction and transport in TPSCs. This design enabled us to obtain the certified quasi-steady-state efficiency over 10% for TPSCs from an accredited certification institute. The cell was stable, maintaining 95% of the initial PCE after operation at the maximum power point under AM 1.5 G simulated solar light (100 mWcm−2) for 1000 hours.

Suggested Citation

  • Xiao Liu & Yanbo Wang & Tianhao Wu & Xin He & Xiangyue Meng & Julien Barbaud & Han Chen & Hiroshi Segawa & Xudong Yang & Liyuan Han, 2020. "Efficient and stable tin perovskite solar cells enabled by amorphous-polycrystalline structure," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16561-6
    DOI: 10.1038/s41467-020-16561-6
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    Cited by:

    1. Syed Afaq Ali Shah & Muhammad Hassan Sayyad & Karim Khan & Kai Guo & Fei Shen & Jinghua Sun & Ayesha Khan Tareen & Yubin Gong & Zhongyi Guo, 2020. "Progress towards High-Efficiency and Stable Tin-Based Perovskite Solar Cells," Energies, MDPI, vol. 13(19), pages 1-42, September.
    2. Li, Bowei & Jayawardena, K.D. G. Imalka & Zhang, Jing & Bandara, Rajapakshe Mudiyanselage Indrachapa & Liu, Xueping & Bi, Jingxin & Silva, Shashini M. & Liu, Dongtao & Underwood, Cameron C.L. & Xiang,, 2024. "Stability of formamidinium tin triiodide-based inverted perovskite solar cells," Renewable and Sustainable Energy Reviews, Elsevier, vol. 189(PB).

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