Numerical Simulation and Performance Analysis of Silicon-Mixed Halide Perovskite Tandem Solar Cell

The photovoltaic cells are the most ideal approaches to utilize the solar spectrum by absorbing the photons radiation. Perovskite materials have a remarkable role in the photovoltaic (PV) technology. Recently Perovskite material have gained tremendous attention in high performance solar cells for their application. Mixed halide perovskites possess a unique property for bandgap engineering, of which the band gap can be varied from 1.51 eV to 3.0 eV. The absorption coefficient is high for mixed halide perovskite due to its tunable band gap range. The tandem approach is a refined solution to improve the efficiency of Si solar cell as this allows a larger portion of the solar spectrum to be converted to electricity. This work focuses on designing a model for Silicon-mixed halide perovskite tandem solar cell by using SCAPS-1D simulation. Dopant concentration, absorption coefficient, thickness of absorber layer and dopant concentration of ETM have affected the solar cell performance. After simulating the cell structure using SCAPS-1D, the obtained power conversion efficiency of 26.99% for Si-mixed halide perovskite tandem solar cell with short circuit current of 43.0069 mA/cm
²
, open circuit voltage of 0.7370V and fill factor of 85.14%.