Hydrogen induced interface engineering in Fe₂O₃-TiO₂ heterostructures for efficient charge separation for solar-driven water oxidation in photoelectrochemical cells.

ABSTRACT: Semiconductor heterostructure junctions are known to improve the water oxidation performance in photoelectrochemical (PEC) cells. Depending on the semiconductor materials involved, different kinds of junctions can appear, for instance, type II band alignment where the conduction and valence bands of the semiconductor materials are staggered with respect to each other. This band alignment allows for a charge separation of the photogenerated electron-hole pairs, where the holes will go from low-to-high valance band levels and vice versa for the electrons. For this reason, interface engineering has attracted intensive attention in recent years. In this work, a simplified model of the Fe₂O₃-TiO₂ heterostructure was investigated via first-principle

SUBMITTER: Singh AP 

PROVIDER: S-EPMC8694353 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature