Design of ultra-thin CZTS solar cells with indium selenide as buffer layer

The demand of energy is growing rapidly in response of the development of the world. The crucial solution of large amount of energy is to harvest alternative source of energy. Sustainable development can be possible by harvesting solar energy as it is smoke free, clean and environment friendly. For low cost, non-toxic and earth abundant feature, CZTS solar cell is very prominent to generate solar power. During this study, numerical analysis has been done by SCAPS 2802 simulator to examine the performance of CZTS solar cell with Indium Sulphide (InSe) buffer layer. In this research work, the proposed ultra-thin CZTS solar cells showed higher efficiency of 16.30% (FF = 0.584, Jsc = 28.06 mA/cm
²
and Voc = 1.00 V). In addition, the cell stability of the proposed cell showed better result.