Performance Evaluation of Lead Free CH3NH3SnI3 Perovskite Solar Cell: A Simulation Approach by SCAPS-1D

Abstract

The toxicity issue is a major obstacle to the broad commercialization of Lead (Pd)-based Perovskite Solar Cells (PSCs). In such scenarios, Tin (Sn)-based PSC can be crucial to the widespread adoption of high-performance SC. In this study, a Sn-based structure of FTO/Ti02/CH3NH3SnI3/Spiro-OMeTADI Au has been proposed. A sequential strategy is adopted to evaluate the energy level, recombination rate, the bandgap of the absorber, work function, reflective coating, temperature, typical J - V and Q- E curve of the structure using SCAPS ID software. The optimized structure attained maximum power conversion efficiency (PCE) of 26.95 %, with open-circuit voltage (Voc) of 0.9622 V, short-circuit current density (Jsc) of 33.87 ma/cm2 and fill factor (FF) of 82.69% at 300k. The outcomes of this numerical simulation can offer an insightful approach for fabricating viable, economical and highly efficient Sn-based PSC.