Doping of Sb into Cu₂ZnSn(S,Se)₄ absorber layer via Se&Sb₂Se₃ co-selenization strategy for enhancing open-circuit voltage of kesterite solar cells.

ABSTRACT: Kesterite-structured Cu₂ZnSn(S,Se)₄ (CZTSSe) thin film photovoltaics have attracted considerable attention in recent years because of its low-cost and eco-friendly raw material, as well as high theoretical conversion efficiency. However, its photovoltaic performance is hindered by large open-circuit voltage (V _OC ) deficiency due to the presence of intrinsic defects and defect clusters in the bulk of CZTSSe absorber films. The doping of extrinsic cation to the CZTSSe matrix was adopted as an effective strategy to ameliorate defect properties of the solar cell absorbers. Herein, a novel Se&Sb₂Se₃ co-selenization process was employed to introduce Sb into CZTSSe crystal lattice. The results reveal that Sb-doping plays an act

SUBMITTER: Zhao B 

PROVIDER: S-EPMC9395640 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature