Moisture‑Resistant Scalable Ambient‑Air Crystallization of Perovskite Films via Self‑Buffered Molecular Migration Strategy (IMAGE)

Shanghai Jiao Tong University Journal Center

Moisture‑Resistant Scalable Ambient‑Air Crystallization of Perovskite Films via Self‑Buffered Molecular Migration Strategy

Caption

  • A self-buffered molecular migration strategy is developed to suppress spontaneous intermolecular exchange between perovskite intermediate phase and ambient moisture.
  • Exceptionally broad nucleation time and humidity tolerance windows are achieved for perovskite crystallization under ambient air conditions. 1.68 eV-bandgap perovskite solar cells (PSCs) reach a record efficiency of 22.09% when processed in 50–60% relative humidity.
  • The strategy is broadly applicable to 1.53 eV- and 1.77 eV-bandgap perovskite films, enabling high-efficiency PSCs via air-based crystallization processing.

Credit

Mei Yang, Weidong Zhu*, Laijun Liang, Wenming Chai, Xiaomeng Wu*, Zeyang Ren, Long Zhou, Dazheng Chen, He Xi, Chunfu Zhang*, Jincheng Zhang, Yue Hao.

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License

CC BY-NC-ND

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