Design and Optimization of Efficient $\mathrm{FeS}_{2}$ Solar Cell

Nowadays, one of the key priorities in photovoltaic solar cell technology is reducing fabrication cost, at that time maintaining high conversion efficiency. The FeS
₂
(pyrite) is an ecologically viable semiconductor material which has very suitable optoelectronics properties for the economically benign solar cell. So, nowadays researcher shows interest in FeS
₂
-based solar cell. In this research work, numerical analysis of FeS
₂
-solar cell is done with CdS as a potential buffer layer. FTO is used as a TCO layer to get better performance. In the study, the proposed ultra-thin cell structure was found with a conversion efficiency of 17.28% with V
_oc
=0.56 V, J
_sc
=37.99 mA/cm
²
, FF=81.89%. The thermal stability of the cell is also investigated.