An integrated n-Si/BiVO₄ photoelectrode with an interfacial bi-layer for unassisted solar water splitting.

ABSTRACT: Integrated n-Si/BiVO₄ is one of the most promising candidates for unbiased photoelectrochemical water splitting. However, a direct connection between n-Si and BiVO₄ will not attain overall water splitting due to the small band offset as well as the interfacial defects at the n-Si/BiVO₄ interface that severely impede carrier separation and transport, limiting the photovoltage generation. This paper describes the design and fabrication of an integrated n-Si/BiVO₄ device with enhanced photovoltage extracted from the interfacial bi-layer for unassisted water splitting. An Al₂O₃/indium tin oxide (ITO) interfacial bi-layer was inserted at the n-Si/BiVO₄ interface, which promotes the interfacial carrier transport by enla

SUBMITTER: Wang S 

PROVIDER: S-EPMC9945263 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature