In situ investigation of degradation at organometal halide perovskite surfaces by X-ray photoelectron spectroscopy at realistic water vapour pressure

Chun-Ren Ke; Alex Walton; David Lewis; Aleksander Tedstone; Paul O'Brien; Andrew Thomas; Wendy Flavell

doi:10.1039/c7cc01538k

In situ investigation of degradation at organometal halide perovskite surfaces by X-ray photoelectron spectroscopy at realistic water vapour pressure

Chun-Ren Ke, Alex Walton, David Lewis, Aleksander Tedstone, Paul O'Brien, Andrew Thomas (Corresponding), Wendy Flavell (Corresponding)

Research output: Contribution to journal › Article › peer-review

Abstract

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 PbI2, HI and NH3 without formation of methylammonium iodide, allowing us to distinguish between alternative mechanisms for the atmospheric
degradation reaction.

Original language	English
Pages (from-to)	5231-5234
Journal	Chemical Communications
Volume	53
Early online date	19 Apr 2017
DOIs	https://doi.org/10.1039/c7cc01538k
Publication status	Published - 19 Apr 2017

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10.1039/c7cc01538k

Near-Ambient Pressure X-ray Photoemission Spectroscopy (NAP-XPS)
Dwyer, L. (Technical Specialist) & Walton, A. (Academic lead)
Materials Engineering
Facility/equipment: Facility

Cite this

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title = "In situ investigation of degradation at organometal halide perovskite surfaces by X-ray photoelectron spectroscopy at realistic water vapour pressure",

abstract = "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 PbI2, HI and NH3 without formation of methylammonium iodide, allowing us to distinguish between alternative mechanisms for the atmosphericdegradation reaction.",

author = "Chun-Ren Ke and Alex Walton and David Lewis and Aleksander Tedstone and Paul O'Brien and Andrew Thomas and Wendy Flavell",

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doi = "10.1039/c7cc01538k",

language = "English",

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publisher = "Royal Society of Chemistry",

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T1 - In situ investigation of degradation at organometal halide perovskite surfaces by X-ray photoelectron spectroscopy at realistic water vapour pressure

AU - Ke, Chun-Ren

AU - Walton, Alex

AU - Lewis, David

AU - Tedstone, Aleksander

AU - O'Brien, Paul

A2 - Thomas, Andrew

A2 - Flavell, Wendy

PY - 2017/4/19

Y1 - 2017/4/19

N2 - 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 PbI2, HI and NH3 without formation of methylammonium iodide, allowing us to distinguish between alternative mechanisms for the atmosphericdegradation reaction.

AB - 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 PbI2, HI and NH3 without formation of methylammonium iodide, allowing us to distinguish between alternative mechanisms for the atmosphericdegradation reaction.

U2 - 10.1039/c7cc01538k

DO - 10.1039/c7cc01538k

M3 - Article

SN - 1359-7345

VL - 53

SP - 5231

EP - 5234

JO - Chemical Communications

JF - Chemical Communications

ER -

In situ investigation of degradation at organometal halide perovskite surfaces by X-ray photoelectron spectroscopy at realistic water vapour pressure

Abstract

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Near-Ambient Pressure X-ray Photoemission Spectroscopy (NAP-XPS)

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