Comparative study of distinct halide composites for highly efficient perovskite solar cells using a SCAPS-1D simulator.

This research investigates the influence of halide-based methylammonium-based perovskites as the active absorber layer (PAL) in perovskite solar cells (PSCs). Using SCAPS-1D simulation software, the study optimizes PSC performance by analyzing PAL thickness, temperature, and defect density impact on output parameters. PAL thickness analysis reveals that increasing thickness enhances J SC for MAPbI 3 and MAPbI 2 Br, while that of MAPbBr 3 remains steady. V OC remains constant, and FF and PCE vary with thickness. MAPbI 2 Br exhibits the highest efficiency of 22.05% at 1.2 μm thickness. Temperature impact analysis shows J SC , V OC , FF, and PCE decrease with rising temperature. MAPbI 2 Br-based PSC achieves the highest efficiency of 22.05% at 300 K. Contour plots demonstrate that optimal PAL thickness for the MAPbI 2 Br-based PSC is 1.2 μm with a defect density of 1 × 10 13 cm -3 , resulting in a PCE of approximately 22.05%. Impedance analysis shows the MAPbBr 3 -based PSC has the highest impedance, followed by Cl 2 Br-based and I-based perovskite materials. A comparison of QE and J - V characteristics indicates MAPbI 2 Br offers the best combination of V OC and J SC , resulting in superior efficiency. Overall, this study enhances PSC performance with MAPbI 2 Br-based devices, achieving an improved power conversion efficiency of 22.05%. These findings contribute to developing more efficient perovskite solar cells using distinct halide-based perovskite materials.