Performance Analysis of CZTS Solar Cell with ZnS+ZnMgO as a Buffer layer using SCAPS-1D

CZTS (copper zinc tin sulfide) photovoltaic cells are a type of thin-film solar cell that has recently gained attention as a potential alternative to traditional silicon-based solar cells. CZTS solar cells are made of earth-abundant and low-cost materials and have demonstrated high efficiency in converting sunlight into electricity. In order to create a hybrid buffer layer of ZnS and ZnMgO for the ZnO:Al/ZnS+ZnMgO/CZTS solar cell structure, ZnS is used in this work as a substitute for ZnO. The SCAPS-1D tool has been used to simulate the effects of the hybrid buffer layer (ZnS+ZnMgO) and Cu
2
ZnSnS
4
(CZTS) absorber layer that make up the solar cell. Our solar cell performs best at 1.4 eV of CZTS band gap energy and 3.2 μm of thickness. After replacing ZnO with ZnS, the acquired results characteristics including Voc, Jsc, FF, and PCE saw considerable changes. The reported power conversion efficiency before replacement is 21.84% and after replacement of ZnO to ZnS, the obtained power conversion efficiency is 23.00%. Further the performance parameters of ZnO:Al/ZnS+ZnMgO/CZTS cells have been investigated for different thickness and operating temperatures.