Photoelectrochemical Stability Enhancement of (311)-Oriented Indium Sulfide Thin Films via In-Cystine Complex Formation under Hydrothermal Synthesis.

ABSTRACT: Indium sulfide is a promising photoactive material for light-induced applications, particularly photoelectrochemical (PEC) water splitting. However, its practical application is limited by photocorrosion, which hinders its long-term efficiency. In this study, we report a hydrothermal synthesis of In-cystine bonded (311)-oriented indium sulfide thin films using a mixed sulfur source of l-cysteine hydrochloride and l-cystine, the latter generated in situ via Fe³⁺-induced oxidation of l-cysteine. Synthesis parameters such as temperature and ramp rate are found to affect the indium-organic complex's physical and chemical properties such as composition, morphology, thickness, crystal structure, and thereby the PEC performance of the resulting films. The results indicated that thin fi

SUBMITTER: Yang X 

PROVIDER: S-EPMC12933517 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature