Selective growth of vertically aligned double- and single-walled carbon nanotubes on a substrate at 590°C

D. Kondo, S. Sato, A. Kawabata, Y. Awano

    研究成果: Article査読

    29 被引用数 (Scopus)

    抄録

    Vertically aligned double- and single-walled carbon nanotubes (DWNTs and SWNTs) were synthesized on a substrate at 590°C by hot-filament chemical vapor deposition. An optimized combination of iron and aluminum layers as the catalyst resulted in iron particles ranging from 1-5 nm floating in an aluminum matrix after annealing. Selective synthesis of DWNTs and SWNTs from such particles was achieved by adjusting the dilution ratio of acetylene that was used as the source gas. The yield of DWNTs among all CNTs was as high as 81%, while that of SWNTs was almost 100%. The diameter distribution of DWNTs was narrow, with a standard deviation of about 12%.

    本文言語English
    論文番号435601
    ジャーナルNanotechnology
    19
    43
    DOI
    出版ステータスPublished - 2008 10月 22

    ASJC Scopus subject areas

    • バイオエンジニアリング
    • 化学 (全般)
    • 材料科学(全般)
    • 材料力学
    • 機械工学
    • 電子工学および電気工学

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