Numerical simulation of a triple-cation halide perovskite solar cell achieving over 34% efficiency

Abstract

• Numerical Simulation of a Triple-Cation Halide Perovskite Solar Cell Achieving Over 34% Efficiency • Perovskite solar cell with the structure FTO/PCBM/Cs₀.₀₅(MA₀.₁₇FA₀.₈₃)₀.₉₅Pb(I₀.₈₃Br₀.₁₇)₃/MeO-2PACz/Au, simulated using the Scaps 1D tool • Performance metrics: Voc=1.51 V, Jsc=42.7 mA/cm2, Fill Factor (FF) of 91.3% and an overall efficiency η of 34.75%. With the increasing interest in perovskite solar cells, this study investigates a triple-cation halide perovskite solar cell with the absorber layer Cs₀.₀₅(MA₀.₁₇FA₀.₈₃)₀.₉₅Pb(I₀.₈₃Br₀.₁₇)₃ using SCAPS-1D simulation software. The study focuses on addressing the persistent challenges in achieving high power conversion efficiency (PCE) while maintaining material stability. By optimizing absorber parameters such as thickness, carrier concentration, and bandgap energy, the solar cell achieved exceptional photovoltaic characteristics: Voc=1.51 V, Jsc = 42.7 mA/cm², Fill Factor (FF) = 91.3%, and a record PCE of 34.75%. Compared to previous works, this study highlights significant improvements, emphasizing the potential industrial relevance and future research directions to address limitations like material toxicity and long-term stability.