FASnI3-based eco-friendly heterojunction perovskite solar cell with high efficiency

The advancement of tin(Sn)-based perovskite solar cells (PSCs) has piqued the curiosity of researchers. The use of device simulation software in this study allows for the realization of the FASnI3 PSC's n-i-p planar hetero-junction structure. The initial construction of the device is informed by the published experimental and simulation studies, which achieve efficiencies of 1.75 % and 1.66 %, respectively. On device performance, the effects of altering the thicknesses of the active layer, Charge-transporting layer are examined, along with the impacts of defect density, doping level, and ETL and HTL affinities. The final optimal performance characteristics of the PSCs module are found to be: a short-circuit current density (Jsc) of 32.14 mA/cm2, an open-circuit voltage (Voc) of 1.12 V, a fill factor (FF) of 73.61 %, and a power conversion efficiency (PCE) of 27.11 %. This is after the optimization of these fundamental parameters in a SCAPS simulation.