Comparative Performance Analysis and Modelling of Tin based Planar Perovskite Solar Cell

The era of new generation photovoltaics has captivated by the halide perovskites since their first execution, which was just a decade back. In spite of having the exceptional performance, the toxic nature of lead presents severe concerns for their commercialization and risks associated with human health and environment. Comparative analysis and modelling of solar cell with different absorber layers will supplement the current research progress in the field of perovskite solar cell (PSC). In this work, impact of five different perovskites: FASnI3, MASnI3, CsSnI3, CsSnCl3, and MAGeI3 as absorbing material was investigated and CsSnI3 was found to be most efficient among all with maximum power conversion efficiency (PCE). The structure used for inspection is Au/CuI/Perovskite/PCBM/TCO. In the proposed structure the effect of varying absorber layer thickness (AT), defect density and dopant concentration are analyzed. Total defect density (Nt) of HTL/perovskite and perovskite/ETL interface was also varied to investigate its effect on a PSC. This provides base for future research in the field of lead-free PSC.