Influence of the thhickness of window and absorber layers on the performance of CZTS nanostructred solar cells

The performance of a thin film solar cell is affected by several parameters related to the hetero stucture that is taken into account. In this study, ZnS/ CZTS nontoxic thin film solar cell was studied. The hetero-junction was numerically simulated using the Solar Cell Capacitance Simulator (SCAPS). According to the simulation results, we found that ZnS buffer was suitable for the CZTS absorber and an efficiency around 14% was obtained. By optimizing the thickness of window and absorber layers, we obtained conversion efficiencies as high as 14.2% ZnS/CZTS based solar cells.

Keywords:

CZTS , Solar cells , Simulation , SCAPS