Hybrid microwave annealing-induced formation of an α-Fe₂O₃/ZnWO₄ interface for photoelectrochemical water splitting and study of its charge transport mechanism.

ABSTRACT: The α-Fe₂O₃ photoanode is an efficient semiconductor material for photoelectrochemical (PEC) water oxidation due to its favorable bandgap, chemical stability, and natural abundance. However, the rapid recombination of photoexcited electrons (e^-) and holes (h⁺) impedes the PEC efficiency. Herein, an α-Fe₂O₃/ZnWO₄ heterojunction photoanode was synthesized by combining hydrothermal and hybrid microwave annealing methods. The α-Fe₂O₃/ZnWO₄ heterojunction photoanode demonstrated a photocurrent density of 0.86 mA cm^-2 at 1.23 V vs. RHE, which is more than 2.2 times that of pure ZnWO₄ (0.06 mA cm^-2) and the α-Fe₂O₃ photoanode (

SUBMITTER: Ramachandran K 

PROVIDER: S-EPMC12829315 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature