Issue 12, 2020

The role of oxygen vacancies in water splitting photoanodes

Abstract

Photoelectrochemical water splitting has become one of the most reliable solar-energy conversion technologies for clean hydrogen production. In the race of developing and understanding new semiconducting materials for this application, several studies have been focused on the role of oxygen vacancies, which are known to be defects with a high impact on the final optical and electrical properties of the photoelectrodes. These oxygen defective states can introduce either favorable or detrimental pathways to the overall PEC performance. The present topical review aims to summarize the role of oxygen vacancies in four of the most studied semiconducting thin film oxides (BiVO4, Fe2O3, TiO2 and WO3) as photoanodes for solar water splitting.

Graphical abstract: The role of oxygen vacancies in water splitting photoanodes

Article information

Article type
Review Article
Submitted
02 Sep 2020
Accepted
25 Sep 2020
First published
28 Sep 2020
This article is Open Access
Creative Commons BY-NC license

Sustainable Energy Fuels, 2020,4, 5916-5926

The role of oxygen vacancies in water splitting photoanodes

R. Fernández-Climent, S. Giménez and M. García-Tecedor, Sustainable Energy Fuels, 2020, 4, 5916 DOI: 10.1039/D0SE01305F

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