期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 11, 期 7, 页码 2630-2636出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.0c00581
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资金
- Russian Science Foundation at Skoltech [18-13-00353]
- Russian Foundation for Basic Research [20-42-660003]
- Ministry of Education and Science of Russia [AAAA-A18-118020190098-5]
- Russian Science Foundation at IPCP RAS [19-73-30020]
In this work, we report a comparative study of the gamma ray stability of perovskite solar cells based on a series of perovskite absorbers including MAPbI(3) (MA = methylammonium), MAPbBr(3), Cs(0.15)FA(0.85)PbI(3) (FA = formamidinim), Cs(0.1)MA(0.15)FA(0.75)PbI(3), CsPbI3, and CsPbBr3. We reveal that the composition of the perovskite material strongly affects the radiation stability of the solar cells. In particular, solar cells based on the MAPbI(3) were found to be the most resistant to gamma rays since this perovskite undergoes rapid self-healing due to the special gas-phase chemistry analyzed with ab initio calculations. The fact that the solar cells based on MAPbI(3) can withstand a 1000 kRad gamma ray dose without any noticeable degradation of the photovoltaic properties is particularly exciting and shifts the paradigm of research in this field toward designing more dynamic rather than intrinsically robust (e.g., inorganic) materials.
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