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

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In situ investigation of degradation at organometal halide perovskite surfaces by X-ray photoelectron spectroscopy at realistic water vapour pressure
Chemical Communications ( IF 4.9 ) Pub Date : 2017-04-19 00:00:00 , DOI: 10.1039/c7cc01538k
Jack Chun-Ren Ke _{1,

2,

3,

4,

5} , Alex S. Walton _{2,

3,

4,

5,

6} , David J. Lewis _{2,

3,

4,

5,

7} , Aleksander Tedstone _{2,

3,

4,

5,

8} , Paul O'Brien _{2,

3,

4,

5,

8} , Andrew G. Thomas _{2,

3,

4,

5,

6} , Wendy R. Flavell _{1,

2,

3,

4,

5}

Affiliation

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.

中文翻译：

在实际水蒸气压力下通过X射线光电子能谱原位研究有机金属卤化物钙钛矿表面的降解

接近环境压力的X射线光电子能谱使人们首次能够研究原位制备的甲基铵碘化铅（MAPI）钙钛矿在实际水蒸气压力下的反应。我们表明，MAPI可以直接分解为PbI ₂，HI和NH _3，而不会形成甲基碘化铵，这使我们能够区分大气降解反应的其他机制。

更新日期：2017-05-04

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