Protocol for isothermal crystallization of photovoltaic perovskite films based on volatile solvents

Summary The efficient functioning and stability of a perovskite photoactive layer are paramount to the performance of solar cell devices. Here, we present a protocol for the synthesis of a high-performance exemplified methylammonium lead iodide (CH 3 NH 3 PbI 3 or MAPbI 3 ) perovskite photoactive layer. We describe steps for preparing the requisite ratios of the precursor powders, synthesizing MAPbI 3 single crystals, and selecting a suitable preparation technique. We then detail a flexible doping strategy for the perovskite photoactive layer. For complete details on the use and execution of this protocol, please refer to Wang and Wu (2020, 2022, 2023). 1 , 2 , 3