Mechanisms of radiation-induced degradation of hybryd perovskites based solar cells and ways to increase their radiation tolerance

Abstract

The basic processes of perovskite radiation resistance are discussed for photo- and high-energy electron irradiation. It is shown that ionization of iodine ions and a staged mechanism of elastic scattering (upon intermediate scattering on light ions of an organic molecule) lead to the formation of a recombination center Ii. The features of ionization degradation of interfaces with both planar and fractal structures are considered. A special type of fractality is identified, and its minimum possible level of photodegradation is predicted. By using the methodology of classical radiation physics, the Hoke effect was also studied, as well as the synergetics of cooperative phenomena in tandem systems. The principal channels for counteracting the radiation degradation of solar cells based on hybrid perovskites have been revealed.