Numerical Investigation of CsSnCI3 Perovskite Solar Cells Utilizing WS2 and CuSbS2 Transport Layers for Enhanced Efficiency beyond 24%

This study introduces a novel arrangement for solar cell simulation using the SCAPS‐1D simulator. The simulation framework incorporates advanced electron‐/hole‐transport layers successively ETLs (WS 2 ) and HTLs (CuSbS 2 ). Heterostructures composed of ITO/WS 2 /CsSnCI 3 /CuSbS 2 /Ag demonstrate remarkable photoconversion efficiency. A thorough analysis investigates the influence of various parameters such as CsSnCI 3 absorber thickness, ETL thickness, temperature, series resistance, and absorber thickness with ETL thickness. Simulation findings reveal an optimal open‐circuit voltage ( V OC ) of 1.15 V, a short‐circuit current density ( J SC ) of 26.07 mA cm −2 , a fill factor of 86.35%, and a power conversion efficiency of 24.23%, consistent with earlier research. This extensive simulation research provides insights into factors affecting perovskite solar cells and suggests promising directions for future advancements.