Advancements in the stability of perovskite solar cells: Degradation mechanisms and improvement approaches

  • Li B
  • Li Y
  • Zheng C
 et al. 
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Abstract

Recently, organic metal halide perovskite has emerged as one of the most promising photoactive materials in the field of photovoltaics. Over the past six years, the efficiency of perovskite solar cells (PSCs) has increased from initial 3.8% to 20.8% through the optimization of perovskite film fabrication and device architecture. However, perovskites suffer inherent instability and degrade rapidly under different exposures (water, oxygen, UV-light irradiation and high temperature), limiting their further application to commercialization. Herein, several studies have been carried out to resolve this problem to some extent. In this paper, possible degradation mechanisms are summarized in order to help us understanding the process of perovskite decomposition. Moreover, we also systematically outline and classify the approaches to improve the long-term stability of perovskite device.

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Authors

  • Bobo Li

  • Yafang Li

  • Chaoyue Zheng

  • Deqing Gao

  • Wei Huang

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