Investigating the Role of New ZnMgO Buffer Layer in C MTS Thin Film Solar Cell: Advanced Modeling and Optimization

Solar cells based on C MTS (Cu۲MnSnS۴) absorbers are made of low-cost, non-toxic and stable elements on the Earth's surface and are widely studied for their high efficiency. C MTS compound is a semiconductor with a symmetrical Stenite structure. Considering the alignment of the energy bands in the structure of the solar cell, it is very important to achieve a buffer layer with a high transmission coefficient, an optimal bandgap and a suitable lattice matching. Here, the role of thickness of buffer layer in Mo/C MTS/ZnMgO/ZnO/ZnO:Al solar cell structure was investigated through ۱D-SCAPS modeling. The analysis of the result indicates that the thickness of ZnMgO buffer layer is optimal at ۷۵ nm. The values obtained from the I-V analysis indicate the achievement of VOC = ۰.۹۱ V, Jsc = ۴۰.۸۳ (mA/cm۲), FF = ۷۰.۲۴ (%) and Eff = ۲۶.۲ (%). The achieved results provide essential baselines and practical directions for the fabrication of high-efficiency C MTS absorber layer-based photovoltaic cells.

کلیدواژه ها:

CMTS absorber layer ، ZnMgO buffer layer ، Thin film solar cells ، SCAPS-۱D ، Solar cell simulation