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  • Phenylalkylamine Passivatio...
    Wang, Feng; Geng, Wei; Zhou, Yang; Fang, Hong-Hua; Tong, Chuan-Jia; Loi, Maria Antonietta; Liu, Li-Min; Zhao, Ni

    Advanced materials, 12/2016, Volume: 28, Issue: 45
    Journal Article

    Benzylamine is introduced as a surface passivation molecule that improves the moisture‐resistance of the perovskites while simultaneously enhancing their electronic properties. Solar cells based on benzylamine‐modified formamidinium lead iodide perovskite films exhibit a champion efficiency of 19.2% and an open‐circuit voltage of 1.12 V. The modified FAPbI3 films exhibit no degradation after >2800 h air exposure.