Modeling of ZnO/MoS2/CZTS photovoltaic solar cell through window, buffer and absorber layers optimization

In this work, we propose a feasible ZnO/MoS2/CZTS structure where the classical CdS buffer layer is replaced by a molybdenum disulfide buffer layer. This proposed solar cell is investigated thereafter using SCAPS code so as to determine the optimal value of each layer thickness constituting the cell of interest. The different photovoltaic parameters are determined versus each layer thickness. Our solar cell shows a conversion efficiency of about 23.69%. This corresponds to optimal thicknesses of 0.1 mu m for ZnO window layer, 0.2 mu m for MoS2 buffer layer and 1 mu m for CZTS absorber layer and common doping concentrations of 10(18) cm(-3) for each layer. This conversion efficiency compares reasonably with those previously quoted in the literature.

Automated summary

A novel ZnO/MoS2/CZTS solar cell structure was proposed and investigated, achieving a conversion efficiency of about 23.69%, which compares reasonably with previously quoted data.