Performance of CZTSxSe1−x solar cell with various mole fractions of sulfur for different buffer layers

Abstract

Among the thin film solar cells, CZTSSe is the most promising one. In this article, the performance of CZTSSe solar cell with different potential buffer layers for different mole fractions of S of CZTSSe has been numerically investigated. It has been found that ZnSe buffer layer provides better performance in terms of efficiency than others within 0.7 mole fraction of S of CZTSSe. Above this value ZnO and ZnS both provide almost identical performance. The obtained results might be helpful in developing CZTSSe thin film solar cells by using proper mole fraction of sulfur in CZTSSe which has the potential to provide higher efficiency.