Influence of antimony dopant on CuIn(S,Se)2 solar thin absorber layer deposited via solution-processed route

This paper reports the hydrazine-free solution processing of antimony doping in CuIn(S,Se)2 solar cells using thiol-amine as solvents. The Sb-doped CuIn(S,Se)2 absorbers layer is fabricated using low-cost atmospheric spray deposition route. The morphological, optical, and electrical properties of Sb-doped CuIn(S,Se)2 are investigated using XRD, FE-SEM, UV–Vis-IR spectrophotometer, and solar simulator. Results suggest that the power conversion efficiency of fabricated CuIn(S,Se)2 solar cells is significantly improved by introducing antimony dopant. Results infers plausible way of future manufacturing and processing of chalcopyrite thin films solar cells at lower temperature using non-vacuum deposition route.