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Catalytic role of H 2 O in degradation of inorganic–organic perovskite (CH 3 NH 3 PbI 3 ) in air
Author(s) -
Wei Wei,
Hu Yun Hang
Publication year - 2016
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.3680
Subject(s) - perovskite (structure) , degradation (telecommunications) , catalysis , decomposition , amorphous solid , materials science , chemistry , phase (matter) , inorganic chemistry , chemical engineering , mineralogy , crystallography , organic chemistry , telecommunications , computer science , engineering
Summary Degradation of inorganic–organic perovskite films in ambient condition is a critical issue for the application of perovskite solar cells. Herein, it is the first time to report the catalytic role of H 2 O in the degradation of CH 3 NH 3 PbI 3 perovskite by air of high humidity. It was found that H 2 O can catalyze the decomposition of CH 3 NH 3 PbI 3 into CH 3 NH 3 I and PbI 2 , and then the crystal‐to‐amorphous phase transformation of the produced CH 3 NH 3 I. Copyright © 2016 John Wiley & Sons, Ltd.