Phenylalkylamine Passivation of Organolead Halide Perovskites Enabling High-Efficiency and Air-Stable Photovoltaic Cells

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%...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2016-12, Vol.28 (45), p.9986-9992
Main Authors: Wang, Feng, Geng, Wei, Zhou, Yang, Fang, Hong-Hua, Tong, Chuan-Jia, Loi, Maria Antonietta, Liu, Li-Min, Zhao, Ni
Format: Article
Language:English
Subjects:
benzylamine
Efficiency
Electric potential
Iodides
Passivation
perovskite solar cells
Perovskites
Photovoltaic cells
Solar cells
Voltage
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Summary: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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201603062