open access

https://hdl.handle.net/2115/45357

Photoelectrochemical Property of Tungsten Oxide Films of Vertically Aligned Flakes for Visible-Light-Induced Water Oxidation

英語

2011

Electrochemical Society

Journal of the Electrochemical Society

158(2)

K42-K46

A vertically arrayed flake film, "flake-wall film," of monoclinic tungsten oxide (WO3) was prepared on a transparent conductive glass by controlling anisotropic crystal growth and self-arrayed growth of WO3 hydrate with a layered crystal structure. The WO3 flake-wall film exhibited superior performance for photoelectrochemical water oxidation under visible-light irradiation compared to that of a film consisting of horizontally laminated WO3 flakes. The small differences between photocurrents under front-side irradiation and back-side irradiation and between photocurrents in the absence and the presence of methanol indicate the excellent electron transport property and long photogenerated carrier lifetime in the flake-wall film.

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Version of Record

© The Electrochemical Society, Inc. 2011. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in J. Electrochem. Soc., 158(2), pp. K42-K46 (2011).

0013-4651