Inorganic Impurity Effect on the Photoinduced Hydrophilic Conversion on Ultrasmooth SrTiO3 and TiO2 Single Crystal Surfaces
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概要
- 論文の詳細を見る
We report the effect of inorganic impurities on the photoinduced hydrophilic conversion on ultrasmooth SrTiO3 and TiO2 single crystal surfaces. A water droplet became well spread over on a TiO2-terminated SrTiO3(100) surface after UV irradiation, whereas it remained beaded on a SrO-terminated SrTiO3(100) surfaces. ZnO and CuO impurities deposited onto a rutile TiO2(110) surfaces were found to suppress the hydrophilic conversion with increasing amounts of ZnO and CuO. No hydrophilicity characteristic of TiO2 was observed after UV irradiation at a nominal impurity thickness of only 5 Å, indicating that the surface-exposed atomic layer plays a crucial role in photoinduced hydrophilic conversion.
- Japan Society of Applied Physicsの論文
- 2007-06-25
著者
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Koinuma Hideomi
Crest Japan Science And Technology Corporation
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Ohsawa Takeo
Materials And Structures Lab. Tokyo Inst. Of Technol.
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Miyakawa Takayuki
Faculty Of Engineering Yamagata University
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Matsumoto Yuji
Materials And Structures Laboratory Tokyo Institute Of Technology
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Katayama Masao
Materials And Structures Laboratory Tokyo Institute Of Technology
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Matsumoto Yuji
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Kuwano Jun
Faculty of Engineering, Tokyo University of Science, 12-1 Funakawaramachi, Ichigaya, Shinjuku-ku, Tokyo 162-8601, Japan
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Katayama Masao
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Ohsawa Takeo
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Koinuma Hideomi
CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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Miyakawa Takayuki
Faculty of Engineering, Tokyo University of Science, 12-1 Funakawaramachi, Ichigaya, Shinjuku-ku, Tokyo 162-8601, Japan
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