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Fabrication of TiO₂/CuO photoelectrode with enhanced solar water splitting activity

Timur Sh. Atabaev

http://orcid.org/0000-0001-7252-4098

Department of Physics and Astronomy, Seoul National University, Seoul 08826, South Korea

Department of Chemistry, School of Science and Technology, Nazarbayev University, Astana 010000, Kazakhstan

E-mail Address: timuratabaev@yahoo.com

E-mail Address: timur.atabaev@nu.edu.kz

Corresponding author.

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Dae Hun Lee

Department of Chemistry, School of Science and Technology, Nazarbayev University, Astana 010000, Kazakhstan

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, and

Nguyen Hoa Hong

Department of Chemistry, School of Science and Technology, Nazarbayev University, Astana 010000, Kazakhstan

E-mail Address: nguyenhong@snu.ac.kr

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https://doi.org/10.1142/S1793604717500849Cited by:13 (Source: Crossref)

Abstract

A bilayered TiO₂/CuO photoelectrode was fabricated on a fluorine-doped tin oxide FTO substrate by spin-coating and pulsed laser deposition methods. The prepared bilayered system was assessed as a photoelectrode for solar water splitting. The fabricated TiO₂/CuO photoelectrode exhibited a higher photocurrent density (0.022mA/cm² at 1.23V vs. RHE) compared to bare TiO₂ photoelectrode (0.013mA/cm² at 1.23V vs. RHE). This photocurrent density enhancement was attributed to the improved charge separation combined with the improved sunlight harvesting efficiency of a bilayered structure.

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