In situ investigation of degradation at organometal halide perovskite surfaces by X-ray photoelectron spectroscopy at realistic water vapour pressureElectronic supplementary information (ESI) available: Experimental details and supporting results. See DOI: 10.1039/c7cc01538k

Near-ambient-pressure X-ray photoelectron spectroscopy enables the study of the reaction of in situ -prepared methylammonium lead iodide (MAPI) perovskite at realistic water vapour pressures for the first time. We show that MAPI decomposes directly to PbI 2 , HI and NH 3 without formation of methyla...

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Main Authors Chun-Ren Ke, Jack, Walton, Alex S, Lewis, David J, Tedstone, Aleksander, O'Brien, Paul, Thomas, Andrew G, Flavell, Wendy R
Format Journal Article
LanguageEnglish
Published 04.05.2017
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Summary:Near-ambient-pressure X-ray photoelectron spectroscopy enables the study of the reaction of in situ -prepared methylammonium lead iodide (MAPI) perovskite at realistic water vapour pressures for the first time. We show that MAPI decomposes directly to PbI 2 , HI and NH 3 without formation of methylammonium iodide, allowing us to distinguish between alternative mechanisms for the atmospheric degradation reaction. Near-ambient-pressure X-ray photoelectron spectroscopy enables the study of the reaction of in situ -prepared methylammonium lead iodide (MAPI) perovskite at realistic water vapour pressures for the first time.
Bibliography:10.1039/c7cc01538k
Electronic supplementary information (ESI) available: Experimental details and supporting results. See DOI
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc01538k