Performance Optimization of CdS/CdTe Thin Film Hetrojunction solar cell by SCAPS-1D Simulation

This work presents the study of the structural and physical properties of Cadmium Sulphide and Cadmium Telluride layers on thin-film heterojunction solar cells' performance. The performance evaluation of the solar cell was completed by numerical simulation using the SCAPS-1D open-source solar simulating tool. Herein, we have optimised the PCE of this photovoltaic cell by altering the different parameters of window and absorber layers such as thickness, electron affinity, band gap, and doping concentration using numerical simulation. By varying these parameters, we have done a comparative study to observe the impact on the device performance. Highest electrical conversion efficiency of 19.72% is achieved with numerical simulation when we kept the thickness of CdS and CdTe layers to 0.05 µm and 3 µm respectively.