Scanning Tunneling Microscopy of Porphyrin-Based Molecules on TiO2 Surfaces
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概要
- 論文の詳細を見る
The conformational features of bis(3,5-di-$t$-butyphenyl)(4-ethynylphenyl)(methylthiophenyl)porphyrin (EMTBPP) molecules on rutile TiO2(110)-($1 \times 1$) surfaces were investigated by scanning tunneling microscopy under ultrahigh vacuum conditions. The EMTBPP molecules are successively observed at single-molecule resolution. At lower coverage, the EMTBPP molecules seem to be selectively adsorbed to oxygen vacancy places in the oxygen row due to an attractive force between the center of the porphyrin ring and the oxygen vacancy. At higher coverages, periodical and orientational ordering of the EMTBPP molecules along the ($1 \times 1$) surface structure occurs. The effects of molecule–substrate and intermolecular interactions on the conformational features are discussed.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2006-03-15
著者
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Suzuki Hitoshi
Nanotechnology Group, Kansai Advanced Research Center, National Institute of Information and Communications Technology, 588-2 Iwaoka, Nishi-ku, Kobe 651-2492, Japan
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Inada Mitsuru
Nanotechnology Group, Kansai Advanced Research Center, National Institute of Information and Communications Technology, 588-2 Iwaoka, Nishi-ku, Kobe 651-2492, Japan
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Scifo Lorette
Laboratoire de Physique des Metaux Synthetiques UMR5819-SprAM, DRFMC CEA-Grenoble, 17 rue des Martyrs 38054 Grenoble Cedex 9, France
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Tanaka Shukichi
Nanotechnology Group, Kansai Advanced Research Center, National Institute of Information and Communications Technology, 588-2 Iwaoka, Nishi-ku, Kobe 651-2492, Japan
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Grevin Benjamin
Laboratoire de Physique des Metaux Synthetiques UMR5819-SprAM, DRFMC CEA-Grenoble, 17 rue des Martyrs 38054 Grenoble Cedex 9, France
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Mashiko Shinro
Nanotechnology Group, Kansai Advanced Research Center, National Institute of Information and Communications Technology, 588-2 Iwaoka, Nishi-ku, Kobe 651-2492, Japan
関連論文
- Scanning Tunneling Microscopy of Porphyrin-Based Molecules on TiO2 Surfaces
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