Numerical Study on novel MASnBr3 (Perovskite) based Tandem Photovoltaic Cell

The main goal of the most recent photovoltaic studies is to develop a device that is extremely efficient and stable, either through experimental study or through modeling and simulation. The single junction solar cell’s performance is mainly limited by thermalization loss and transmission loss. Due to this, tandem solar cells (TSC) have had a significant impact on photonic studies to effectively use the entire sun spectrum and to reduce these losses. The quick growth of perovskite on silicon Tandem devices has been supported by improvements in perovskite material stability and advanced silicon fabrication processes. In this paper, we use SCAPS software to check out a TSC with the c-Si (bandgap: 1.12 eV) as the bottommost subcell and the lead–free organic–inorganic hybrid PSC i.e., MASnBr3 (bandgap: 1.3 eV) where MA= Methyl Ammonium (CH3NH3) as the topmost subcell. The standalone top cell gives an Efficiency (eta) of 32.98 (FF=88.19, Jsc= 33.89, Voc=1.10). The standalone bottom cell gives an Efficiency (eta) of 21.71 (FF=85.23, Jsc=18.84, Voc=0.73). A TSC with MASnBr3 on c-Si shows an Efficiency of 44.35 (FF=82.94, Jsc=15.25, Voc=1.91). These results showcase the feasibility of using non-toxic materials, such as MASnBr3 to attain higher PCE values.