Close Space Sublimation Growth of Sb₂(S,Se)₃ Thin-Film Solar Cells.

ABSTRACT: This study reports the synthesis and characterization of Sb₂(S,Se)₃ thin films for thin-film photovoltaics via a single-source close space sublimation (CSS) approach. We demonstrate power conversion efficiencies of up to 4.3% with notable improvements in open-circuit voltage (V_oc >490 mV) compared to those of Sb₂Se₃ equivalents. Secondary ion mass spectrometry, X-ray diffraction, and cross-sectional scanning and transmission electron microscopies identified some issues in controlling film stoichiometry, particularly with sulfur loss, leading to oxide formation and elevated series resistance, reducing the fill factor in completed devices. We also identify clear discrepancies between the determined bandgap, sulfur content inferred

SUBMITTER: Sindi DA 

PROVIDER: S-EPMC12557190 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature