Fabrication of Fe2O3/TiO2 Photoanode for Improved Photoelectrochemical Water Splitting

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概要

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• A thin layer of TiO2 with photocatalytic property was employed as an interlayer to facilitate electron transfer in a conventional photoanode consisting of Fe2O3 and fluorine-doped tin oxide (FTO) films. The photoelectrochemical performance was compared between the samples with and without the TiO2 interlayer. The photoanode with the interlayer showed a greatly improved performance under 100 mW/cm2 UV--vis light illumination; the onset voltage for the photocurrent shifted to a 20% smaller value of about 0.75 (V vs real hydrogen electrode) and the photocurrent density of 4.35 mA/cm2 at 1.23 (V vs RHE) was observed, which is 3.5 times larger than that obtained from the photoanode without the TiO2 interlayer. The effect of the TiO2 interlayer on the photoanode performance was systematically investigated, and an effective way to improve the photoanode was suggested.

• 2013-01-25

著者

• Kim Bo-Ra

  Institute/Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Korea

• Oh Hyo-Jin

  Institute/Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Korea

• Jung Sang-Chul

  Department of Environmental Engineering, Sunchon National University, Suncheon, Jeonnam 540-742, Korea

• Kim Sun-Jae

  Institute/Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Korea

• Noh Kyung-Jong

  Institute/Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Korea

• Kang Wooseung

  Department of Metallurgical and Materials Engineering, Inha Technical College, Incheon 402-751, Korea

関連論文

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