Numerical Simulation and Optimization of Inorganic Perovskite Solar Cell Based on CsPbBr3

Abstract

Lead halide perovskite having band gaps in the visible spectral range provided an important opportunity to utilize the design of high-efficiency solar cells. CsPbBr₃ based an inorganic perovskite solar cell shows greater stability towards heat, water, radiation-induced degradation, and similar efficiency to its hybrid counterpart CH₃NH₃PbBr₃ based solar cell. In the simulation work, Shockley–Read–Hall (SRH), Auger, and band to band recombinations were considered for the perovskite layer. For ETL (electron transport) layer- concentration dependent mobility, Shockley-Read-Hall (SRH) and for HTL (hole transport layer) – Poole - Frenkel mobility model, Langevin recombination models were considered. The refractive index (η) and extinction coefficient (k) value was obtained using MATLAB and same was incorporated in Silvaco Atlas. The transfer matrix method (TMM) was used as an optical model to calculate the carrier generation rate. Rigorous analysis based on variation in the absorber layer, electron, and holes transfer layer shows an excellent efficiency of 13.02%.