Investigation of CH3NH3SnBr3 Perovskite as an Active Layer in PV Cells: SCAPS-1D Simulation and Thickness Optimization for Enhanced Efficiency

The research paper details a study on the application of perovskite CH3NH3SnBr3 as an active layer in PV cells. The performance of the suggested device has been replicated by the studies using the SCAPS-1D tool. The device's architecture consists of ITO/TiO
2
/CH
3
NH
3
SnBr
3
/Cu
2
O/Au, with ITO as the light transparent material, and TiO
2
and Cu
2
O as the electron and hole transport layers, respectively. The perovskite layer's thickness has been modified in 20 equal increments from 100 to 1000 nm. According to the investigation, CH3NH3SnBr3 perovskite works well as an absorbent layer, and by making the perovskite layer thicker, the device's effectiveness could be raised. The estimated conversion efficiency of the suggested device is 16.82% at higher thickness. Overall, the study suggests CH3NH3SnBr3 perovskite as a potential material for application in solar cells of the future.