Performance Analysis of Sr₃SbI₃‐Based Perovskite Solar Cell Using SCAPS‐1D Software

Abstract

Perovskite solar cells, a potential renewable energy source, could revolutionize the efficiency of traditional photovoltaic cells. Their high efficiency and low cost of materials and processes outshine commercial silicon or other organic and inorganic solar cells. In this comprehensive research, we develop inorganic Sr 3 SbI 3 as an absorber material for perovskite solar cells using SCAPS‐1D software. Strontium antimony iodide (Sr 3 SbI 3 ) holds promise as an absorber material for solar cells due to its potential for high light absorption and suitable electronic properties. This study utilized abundant and environmentally friendly tungsten trioxide (WO 3 ) as the electron transport layer to maximize the device’s efficiency. Copper antimony sulfide (CuSbS 2 ) emerges as a promising photovoltaic hole transport material for Sr 3 SbI 3 ‐based perovskite solar cells. To further boost device performance, we scrutinized the effects of absorber and buffer layer thickness, acceptor density, Sr 3 SbI 3 defect density, and interfacial defect densities at the WO 3 /Sr 3 SbI 3 and Sr 3 SbI 3 /CuSbS 2 interfaces. We also explored the influences of operating temperature, series resistance, and shunt resistance on the final optimized device performance and its capacitance voltage, current density–voltage (J–V), and quantum efficiency (Q‐E) properties. The Sr 3 SbI 3 –based solar cell exhibited the highest power conversion efficiency (PCE) at 30.51% with V oc 1.078 V, J sc 35.03 mA/cm 2 , and FF 80.81%. The designed Sr 3 SbI 3 –based solar cell outputs will be efficient for the convenient fabrication of the perovskite solar cell.