Temperature Dependence of Photochemical Degradation of MAPbBr3 Perovskite
Journal
Coatings
Journal Volume
12
Journal Issue
8
Date Issued
2022-08-01
Author(s)
Zhidkov, Ivan S.
Akbulatov, Azat F.
Ustinova, Marina I.
Kukharenko, Andrey I.
Frolova, Lyubov A.
Cholakh, Seif O.
Troshin, Pavel A.
Kurmaev, Ernst Z.
Abstract
The experimental results of X-ray diffraction (XRD), optical absorbance, scanning electron microscopy (SEM), and X-ray photoelectron spectra (XPS) of the core levels and valence bands of MAPbBr3 (MA-CH3NH3+) perovskite before and after exposure to visible light for 700 h at temperatures of 10 and 60 °C are presented. It reveals that the light soaking at 60 °C induces the decomposition of MAPbBr3 perovskite accompanied with the decay of organic cation and the release of a PbBr2 phase as a degradation product whereas the photochemical degradation completely disappears while the aging temperature is decreased to 10 °C.
Subjects
hybrid perovskites | stability | temperature-dependent degradation | XPS
SDGs
Publisher
MDPI
Type
journal article