Journal of Inorganic Materials ›› 2023, Vol. 38 ›› Issue (9): 1044-1054.DOI: 10.15541/jim20230049

Special Issue: 【能源环境】钙钛矿(202310) 【能源环境】太阳能电池(202310)

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Research Progress of Cs2AgBiBr6 Perovskite Solar Cell

ZHANG Lun(), LYU Mei, ZHU Jun()   

  1. Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
  • Received:2023-01-31 Revised:2023-04-28 Published:2023-09-20 Online:2023-06-02
  • Contact: ZHU Jun, professor. E-mail: jzhu@hfut.edu.cn
  • About author:ZHANG Lun (1992-), male, PhD candidate. E-mail: zhanglunme@163.com
  • Supported by:
    National Key R&D Program of China(2019YFE0101300);Fundamental Research Funds for the Central Universities(JZ2022HGTA0327);Fundamental Research Funds for the Central Universities(JZ2021HGQA0264)

Abstract:

In recent years, organic-inorganic hybrid perovskite solar cells have received a lot of attention for their excellent performance and low manufacturing cost. However, the toxicity of lead in organic-inorganic hybrid perovskite solar cells and instability inhibits its further commercialization. Double perovskite Cs2AgBiBr6 possess excellent stability, low toxicity, long carrier lifetime, and small effective carrier mass, and is considered as a promising photovoltaic material. It has been applied in solar cells and displayed superior performance. However, the power conversion efficiency of Cs2AgBiBr6 perovskite solar cell still lags behind organic-inorganic hybrid perovskite solar cells, and its development faces various challenges. This review firstly introduces the crystal structure and the structural parameters such as tolerance factor of Cs2AgBiBr6. And then, the progress of thin film preparation technologies such as solution processing method, anti-solvent assisted film forming method, vapor deposition processing method, vacuum-assisted film forming method, spray-coating method are summarized, and the advantages and disadvantages of various preparation technologies are discussed. The performance optimization strategies of Cs2AgBiBr6 perovskite solar cells are analyzed from three aspects: element doping, additive engineering, and interface engineering (interface energy level matching and interface defect passivation), and the research progress in recent years is reviewed. Finally, the challenges faced by Cs2AgBiBr6 perovskite solar cells are pointed out, and future research directions are prospected from three aspects: precursor solvent engineering, bandgap engineering, and device degradation mechanism.

Key words: Cs2AgBiBr6, solar cell, power conversion efficiency, double perovskites, review

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