Numerical Simulation of Lead-Free Sn-Based Perovskite Solar Cell by Using SCAPS-1D

Abstract

Recent developments based on lead (Pb) halide perovskites have inspired extensive research into low-cost solar cells in attempt to overcome the primary issues such as stability and toxicity that occur in this area. Solar cell simulation of lead-free perovskite (CH3NH3SnBr3) as an absorber-based solar cell was performed using SCAPS-1D simulation tool in this work. An impact of absorber layer thickness and working temperature on photovoltaic characteristics of CH3NH3SnBr3-based perovskite solar cells was investigated using numerical modeling techniques. The thickness was varied from 1.0 μm to 3.0 μm, and working temperature was varied from 290 K to 330 K, and their effect was examined on the photovoltaic parameters of proposed “Back Contact/CH3NH3SnBr3/CdS/ZnO/Front Contact” solar cell. The improvement in the efficiency of solar cell by optimization of CH3NH3SnBr3 absorber layer thickness and working temperature was observed.