Numerical Simulation of Methylammonium Tin Bromide Based Perovskite Solar Cells

This study examined the impact of several factors on solar cell performance using a solar cell capacitance simulator. In order to improve the design of the solar cell, a simulator was used to conduct experiments with a number of different combinations of designs and materials. According to the results, variables including heat, thickness, and material qualities affected the solar cell's capacitance. In this research, we created a PSC with a unique structure of FTO/ZnO/CdS/CH3NH3SnBr3/Au that does not include lead (Pb). As an alternative to lead (Pb), tin (Sn) was used in perovskites. To get a better understanding of how temperature fluctuations, perovskite’s thickness, and concentration of doping impact solar cell performance; above-mentioned factors were addressed in this work. At an operating temperature of 290 K, with an absorber layer that has a thickness of 2000 nm and a doping concentration of 1020 cm−3, the device is exhibiting its optimum performance. The lead-free CH3NH3SnBr3 shows great promise as an absorber layer, with the ability to attain high efficiency of 34.76%, along with the fill factor of 87.20%, 32.10 mA/cm2 of JSC, and 1.24 V VOC.