Structural and Electrical Characterization of Three-Dimensional Superlattices of Organic Monolayer Protected Gold Nanocrystals
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概要
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Micrometer-sized three-dimensional superlattices were fabricated by assembling Au nanocrystals modified with mercaptosuccinic acid in aqueous suspensions. Each superlattice formed a single crystal arrangement with a hexagonal close-packed structure where $a=5.1$ nm. The superlattices were densely deposited on a glass substrate and their electrical properties were investigated. The superlattice-assembled film showed ohmic behavior in the temperature range from 20 to 285 K. The absolute value of the resistivity was in the semiconductor region, but the resistivity slightly decreased as the temperature decreased. The temperature coefficient of the film was one order of magnitude smaller than that of bulk Au.
- 2011-01-25
著者
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Kimura Keisaku
Graduate School Of Material Science University Of Hyogo
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Sato Seiichi
Graduate School Of Material Science University Of Hyogo
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Sugimoto Tatsuya
Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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Sugimoto Tatsuya
Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan
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Kimura Keisaku
Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan
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Matsuda Ayumi
Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan
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Sato Seiichi
Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan
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