Optimization of Electron and Hole Transport Layers in MASnI3 Perovskite Solar Cell

Considering the characteristics and applications of Perovskite solar cell, it has garnered much attention in the field of research in thin-film photovoltaics owing to its comparable low-cost fabrication methods and hence showing its dominance in photovoltaic applications in daily life. The mixed halide perovskite has shown a promising power conversion efficiency of more than 25%, but the toxicity of lead is the main concern. Hence, it is important to dig out some nontoxic, environment friendly perovskite materials, which can be used as solar cell absorber materials, such as methyl ammonium tin iodide (MASnI
3
). Numerical analysis is used since it plays a critical role in the designing of realistic problems with ease and hence experimenting with different hypothesis can be easily carried out. In this paper, we have used 1-dimensional solar cell capacitor simulator (SCAPS-1D) software to demonstrate the simulation of MASnI
3
- based solar cell with various HTL (hole transport layer) and ETL (electron transport layer) combinations. Results show that the TiO
2
and P3HT combination produced the highest J
sc
(current density) of 32.52 mA/cm
²
with the best power conversion efficiency of 25.75%. This study can offer a better accurate picture of understanding in choosing ETL and HTL materials for the better performance of the perovskite solar cell.