Simulation of SnO2/Cs2AgInBr6/CuO heterojunction solar cell using AMPS-1D modeling

Using the one-dimensional computer code AMPS-1D MPS-1D (Analysis of Microelectronic and Photonic Structures), we simulated a lead-free double perovskite cell made of Cs2AgInBr6. This study examines the influence of the thickness and acceptor density of the active layer (Cs2AgInBr6) on key solar cell parameters, including short-circuit current density (JSC), efficiency (Eff), fill factor (FF), open-circuit voltage (VOC), current-voltage characteristics (J-V)). Our results suggest that an optimal active layer thickness of 500 nm yields good performance for the studied solar cell. Furthermore, the ideal acceptor density for enhancing output parameters is in the range of 10¹3-10¹⁵ cm⁻³. Post-optimization, our findings reveal a Voc of 0.969 V, a Jsc of 29.402 mA cm⁻², and an FF of 0.876, resulting in an efficiency of 24.959%. The results from AMPS-1D simulations for a Cs2AgInBr6 lead-free double perovskite solar cell suggest that this material and device structure can achieve high efficiency and good performance characteristics.