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Influence of halide mixing on thermal and photochemical stability of hybrid perovskites: XPS studies |
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| Authors: | Ivan S Zhidkov Azat F Akbulatov Andrey I Kukharenko Seif O Cholakh Keith J Stevenson Pavel A Troshinb Ernst Z Kurmaev |
| Institution: | 1. Institute of Physics and Technology, Ural Federal University, 620002 Ekaterinburg, Russian Federation;2. Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russian Federation;3. Skolkovo Institute of Science and Technology, 143026 Moscow, Russian Federation;4. M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, 620108 Ekaterinburg, Russian Federation |
| Abstract: | The effect of I–/Cl–and I–/Br–mixing on the thermal and photochemical degradation of organometallic perovskite MeNH3PbI3 (MAPbI3) was studied by X-ray photoelectron spectroscopy, which revealed the opportunity to essentially increase the photo and thermal stabilities of the material depending on the level and position of halide-mixing. The largest positive effect was observed for the small concentration of chloride substituent (MAPbI2.7Cl0.3), while the full halide substitution (MAPbBr3) had a negative effect on the stability of hybrid perovskite. |
| Keywords: | Corresponding author |
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