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Comprehensive Summary The preparation of perovskite solar cells (PSCs) in the air environment has attracted the attention of numerous experimenters due to its low preparation cost and the possibility of commercialization. Although the power conversion efficiency (PCE) of PSCs has increased rapidly and exceeded 25%, which is comparable to commercial polysilicon solar cells, most certified or reported high‐efficiency perovskite solar cells are still confined to glove boxes or relatively small active areas in the air environment due to moisture, oxygen, high temperature, and ultraviolet (UV) factors. In this review, the factors that lead to perovskite degradation are reviewed, and the appropriate strategies for manufacturing high‐efficiency and stable perovskite solar cells under environmental conditions are summarized to help the technology be commercialized for high‐quality, stable, and large‐area perovskite thin films in the air.
Guo et al. (Mon,) studied this question.