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Observing and Understanding the Corrosion of Silver Nanowire Electrode by Precursor Reagents and MAPbI 3 Film in Different Environmental Conditions
Author(s) -
Yan Zheng,
Chen Hongye,
Li Min,
Wen Xiaoyan,
Yang Yingping,
Choy Wallace C. H.,
Lu Haifei
Publication year - 2021
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.202001669
Subject(s) - materials science , pedot:pss , electrode , corrosion , perovskite (structure) , reagent , layer (electronics) , chemical engineering , metal , nanowire , inorganic chemistry , nanotechnology , composite material , metallurgy , organic chemistry , chemistry , engineering
Since metal electrode is an important component in the perovskite solar cells, which can be used as back contact, transparent electrode, and the transparent interlayer of tandem devices, the corrosion of metal electrode by perovskite film, should be understood. Here, the corrosion of conventional reagents of organic–inorganic perovskite material, i.e., CH 3 NH 3 X (MAX) and PbX 2 , X = I, Br, and Cl, against silver nanowire (AgNW) based transparent electrode are investigated under four different environments, i.e., nitrogen protection, light irradiation, oxygen exposure, and moisture exposure, separately. The corrosion process is inspected by monitoring the time‐dependent resistance variation of the electrode coated by the film of precursor reagent. In addition, the perovskite film of CH 3 NH 3 PbI 3 (MAPbI 3 ) is also coated on the silver nanowire electrode without or with the hole transporting layer of poly(3,4‐ethylenedioxythiophene)–poly(styrenesulfonate) (PEDOT:PSS) or nanostructured CuSCN for understanding the corrosion process under different environmental conditions. The experimental results presented in this paper would be helpful to the understanding of metal electrode stability in perovskite solar cells.