Interfacial band alignment and photoelectrochemical properties of all-sputtered BiVO4/FeNiOx and BiVO4/FeMnOx p–n heterojunctions

This work introduces FeMnO x as a novel effective cocatalyst for PEC water oxidation and provides simple tools for comprehending how interfacial effects influence the PEC performance of all-sputtered BiVO 4 /FeNiO x and BiVO 4 /FeMnO x p–n heterojunctions.