Abstract: This paper mainly represents Cadmium Telluride (CdTe) and Cadmium Sulfide (CdS) thin film solar cellís parametric analysis of fill factor and efficiency with the variation of electron and hole mobility. From this analysis, results showed that the variation of electron and hole mobility gives an effective improvement in fill factor and efficiency, though variation of hole mobility gives higher fill factor and efficiency than variation of electron mobility. On the other hand, varying the thickness of CdS layer also gives a slight improvement on efficiency of CdTe solar cell. But the rate of change of efficiency is quite low.

Keywords: Heterojunction device, Cadmium Telluride, Thickness, Efficiency, Fill factor.