Unravelling the Material Composition Effects on the Gamma Ray Stability of Lead Halide Perovskite Solar Cells: MAPbI3 Breaks the Records

• DOI: 10.1021/acs.jpclett.0c00581
• Publication Date: 2020-03-17T08:47:52Z
• Authors: Aleksandra G. Bol...; Lyubov A. Frolova; Ivan S. Zhidkov; Lavrenty G. Gutsev; Ernst Z. Kurmaev; Bala R. Ramachandran; Vladimir G. Petrov; Keith J. Stevenson; Sergey M. Aldoshin; Pavel A. Troshin
• Keywords: 02 engineering and technology; 0210 nano-technology; 7. Clean energy

In this work, we report a comparative study of the gamma ray stability perovskite solar cells based on series absorbers including MAPbI3 (MA = methylammonium), MAPbBr3, Cs0.15FA0.85PbI3 (FA formamidinim), Cs0.1MA0.15FA0.75PbI3, CsPbI3, and CsPbBr3. We reveal that composition material strongly affects radiation cells. particular, were found to be most resistant rays since undergoes rapid self-healing due special gas-phase chemistry analyzed with ab initio calculations. The fact can withstand 1000 kRad dose without any noticeable degradation photovoltaic properties is particularly exciting shifts paradigm research in field toward designing more dynamic rather than intrinsically robust (e.g., inorganic) materials.