Morphology evolution and degradation of methylammonium lead iodide under accelerated electron beam with energy of 1.8 MeV

Abstract Consideration the application of perovskite material in high-energy photon detection, investigation of high-energy photons interactions with perovskite material is necessary. Here, we reported a study of high-energy electron beam (1.8 MeV) induced physical transformation in perovskite (CH3NH3PbI3) thin film. The effect of irradiation dose on physics properties of perovskite was considered as well. Through investigating the transformation of morphology, crystal structure, optical and electronic properties of perovskite thin film under different photon irradiation condition, we found that high-energy electron beam induced partial morphology defects and phase transformation.