Design and optimization of CuSCN/CH3NH3PbI3/TiO2 perovskite solar cell for efficient performance

A perovskite solar cell with FTO/CuSCN/Perovskite/TiO2/Metal was proposed and analyzed theoretically using SCAPS-1D software. The electron transport layer (ETL), Absorber layer and hole transport layer (HTL) were optimized by varying their thickness, doping concentration and defect density. The absorber thickness and doping seem to heavily influence the performance of the device. ETL optimization also provided a significant boost in the efficiency of the device. This thickness of 900 nm and a light doping of 1014 cm(-3) in absorber layer along with 1017 cm(-3) donor density of ETL provided the highest efficiency of 28.9%. After proper optimization the perovskite solar cell has a power conversion efficiency of 28.9% with 82.08% fill factor. The open circuit voltage is 1.1 V and the short circuit current is 31.192 mA/cm(2).

Automated summary

By optimizing the absorber layer and ETL through varying their thickness, doping concentration and defect density, the performance of the perovskite solar cell was enhanced. After optimization, the solar cell achieved a power conversion efficiency of 28.9%, fill factor of 82.08%, open circuit voltage of 1.1 V, and short circuit current density of 31.192 mA/cm(2).