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Solvent-controlled growth of inorganic perovskite films in dry environment for efficient and stable solar cells

Author

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  • Pengyang Wang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Xingwang Zhang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yuqin Zhou

    (University of Chinese Academy of Sciences)

  • Qi Jiang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Qiufeng Ye

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Zema Chu

    (Chinese Academy of Sciences)

  • Xingxing Li

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Xiaolei Yang

    (Chinese Academy of Sciences)

  • Zhigang Yin

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Jingbi You

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

Abstract

Inorganic halide perovskites such as cesium lead halide are promising due to their excellent thermal stability. Cesium lead iodide (CsPbI3) has a bandgap of 1.73 eV and is very suitable for making efficient tandem solar cells, either with low-bandgap perovskite or silicon. However, the phase instability of CsPbI3 is hindering the further optimization of device performance. Here, we show that high quality and stable α-phase CsPbI3 film is obtained via solvent-controlled growth of the precursor film in a dry environment. A 15.7% power conversion efficiency of CsPbI3 solar cells is achieved, which is the highest efficiency reported for inorganic perovskite solar cells up to now. And more importantly, the devices can tolerate continuous light soaking for more than 500 h without efficiency drop.

Suggested Citation

  • Pengyang Wang & Xingwang Zhang & Yuqin Zhou & Qi Jiang & Qiufeng Ye & Zema Chu & Xingxing Li & Xiaolei Yang & Zhigang Yin & Jingbi You, 2018. "Solvent-controlled growth of inorganic perovskite films in dry environment for efficient and stable solar cells," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04636-4
    DOI: 10.1038/s41467-018-04636-4
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    Cited by:

    1. Lee, Dong-Gun & Pandey, Padmini & Parida, Bhaskar & Ryu, Jun & Cho, SungWon & Kim, Jae-Kwang & Kang, Dong-Won, 2022. "Improving inorganic perovskite photovoltaic performance via organic cation addition for efficient solar energy utilization," Energy, Elsevier, vol. 257(C).

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