Dynamically evolved oxyhydroxides-alloy photoanodes with enhanced efficiency and stability for solar water splitting

Fei Xiang; Ning Li; Arturo Burguete-Lopez; Zhao He; Maxim Elizarov; Andrea Fratalocchi

doi:10.1117/12.3016839

19 June 2024 Dynamically evolved oxyhydroxides-alloy photoanodes with enhanced efficiency and stability for solar water splitting

Fei Xiang, Ning Li, Arturo Burguete-Lopez, Zhao He, Maxim Elizarov, Andrea Fratalocchi

Author Affiliations +

Proceedings Volume PC13014, Photonics for Solar Energy Systems X; PC130140B (2024) https://doi.org/10.1117/12.3016839
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

We report a light-induced oxyhydroxides-alloy heterostructure reconfigured from a nickel-iron alloy film as a highly catalytic and protective layer on photoanodes for solar water oxidation. The optimized photoanodes exhibit a high applied bias photon-to-current efficiency of 4.24% and long-term stability beyond 250 hours, outperforming the closest competitors by 330% in efficiency and 408% in stability, respectively. This self-generated catalytic-protective oxyhydroxides-alloy layer coating strategy opens the way to implementing large scalable photoelectrochemical devices for solar fuel production with high efficiency and device lifetime.

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Citation Download Citation

Fei Xiang, Ning Li, Arturo Burguete-Lopez, Zhao He, Maxim Elizarov, and Andrea Fratalocchi "Dynamically evolved oxyhydroxides-alloy photoanodes with enhanced efficiency and stability for solar water splitting", Proc. SPIE PC13014, Photonics for Solar Energy Systems X, PC130140B (19 June 2024); https://doi.org/10.1117/12.3016839

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