Examining the performance parameters of stable environment friendly perovskite solar cell

Abstract

Cesium tin iodide (CsSnI3) has been suggested as a practical environmentally friendly rival to perovskite solar cells (PSCs) due to its negligible environmental effect and good optoelectronic features. The widespread use of CsSnI3 PSCs is hindered by the quick (often just a few minutes) transition from Sn2+ to Sn4+. By incorporating SnF2 into the perovskite layer, we provide techniques for creating stable CsSnI3 PSCs. The built-in device has a maximum power conversion efficiency (PCE) of 5.52%. The SnF2 incorporated devices sustain 52.18% of their initial absorption after 120 min. Furthermore, a device model was created in order to investigate influence of various perovskite parameters. With optimal absorber thickness of 300 nm, defect density nearly around 1013 cm−3, capture cross section area of electron and hole below 10−16 cm2 and doping concentration around 1019 cm3 breakthrough efficiency up to 16.35% can be achieved. Based on the findings, a desirable understanding of the operation of CsSnI3 devices is provided.