Investigation via simulation of the influence of defects on the photovoltaic performance of single-junction perovskite solar cells based on MAPbI3 using SCAPS-1D

Abstract

This communication presents a numerical simulation study conducted on Perovskite Solar Cells (PSCs) featuring MAPbI₃ as the light-absorbing layer, utilizing the Solar Cell Capacitance Simulator (SCAPS-1D) software. The present study focuses on a single-junction solar cell architecture comprising TiO₂/MAPbI₃/Spiro-OMeTAD. SCAPS was employed to simulate how changes in the thickness of the absorber layer and the concentration of charges and defects within the absorber material affect the photovoltaic performance parameters of PSCs. The straightforward architecture of the solar cell has streamlined the investigation and optimization of device parameters. The 1D optimization of the PSC proposed in this study has led to optimized thickness of active layers, as well as the concentration of charges and defects within the MAPbI₃ absorber material. The present research work reports an optimum thickness of 450 nm for MAPbI₃ absorber material. The optimized concentration of defects has been found to be 10¹⁴ cm^-1. The defect charge type in the absorber layer has not been found to affect the photovoltaic parameters of the PSC.