Position Control and Electrical Characterization of Single-Walled Carbon Nanotubes Debundled by Density Gradient Ultracentrifugation
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概要
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We fabricated field-effect transistors of isolated single-walled carbon nanotubes (SWNTs) that were debundled by density gradient ultracentrifugation (DGU). A solution of SWNTs in heavy water was mixed with iodixanol and then centrifuged. After DGU, the layer in which the SWNTs with a chirality of $(6,5)$ were enriched was extracted and diluted with ultrapure water. The debundled SWNTs were bridged by dielectrophoresis between pairs of Pd electrodes. We also characterized the electrical properties of the SWNTs. Some SWNTs showed semiconductor characteristics, whereas others showed metallic behavior.
- 2010-02-25
著者
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KOBAYASHI Kei
Innovative Collaboration Center, Kyoto University
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MIYATO Yuji
Department of Electronic Science and Engineering, Kyoto University
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Kaneko Katsuhiro
Department Of Applied Physics Faculty Of Engineering Nagoya University
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Hirofumi Yamada
Department of Electronic Science and Engineering, Kyoto University, Kyoto 615-8510, Japan
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Yuji Miyato
Department of Electronic Science and Engineering, Kyoto University Katsura, Nishikyo, Kyoto 615-8510, Japan
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Kei Kobayashi
Innovative Collaboration Center, Kyoto University Katsura, Nishikyo, Kyoto 615-8520, Japan
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Kazumi Matsushige
Department of Electronic Science and Engineering, Kyoto University Katsura, Nishikyo, Kyoto 615-8510, Japan
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Katsuhiro Kaneko
Department of Electronic Science and Engineering, Kyoto University Katsura, Nishikyo, Kyoto 615-8510, Japan
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