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 (CH3NH3PbI3 or MAPbI3) perovskite photoactive layer. We describe steps for preparing the requisite ratios of the precursor powders, synthesizing MAPbI3 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 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.