Growth of horizontally-aligned single-walled carbon nanotubes on sapphire surface by needle-scratching method

Hiroki Ago, Yasumichi Kayo, Masaharu Tsuji

    研究成果: ジャーナルへの寄稿記事

    1 引用 (Scopus)

    抄録

    We report the growth of single-walled carbon nanotubes (SWNTs) over metal nanoparticles which are formed by scratching sapphire surface with metal wires. The chemical vapor deposition over sapphire substrate scratched with Fe and Co metal wires gives horizontally aligned SWNTs, while no nanotube growth is observed for Au, Mo, and Ni wires. This result suggests that the nanoparticles scattered from Fe and Co wires act as the catalyst for SWNT growth, being different from the previously proposed substrate-catalyzed reaction mechanism. Further, we study the effects of the flow rates of CH 4-H 2 gases during the SWNT growth on the nanotube density and diameter.

    元の言語英語
    記事番号04DN02
    ジャーナルJapanese Journal of Applied Physics
    51
    発行部数4 PART 2
    DOI
    出版物ステータス出版済み - 4 1 2012

    Fingerprint

    Single-walled carbon nanotubes (SWCN)
    Sapphire
    needles
    Needles
    sapphire
    carbon nanotubes
    wire
    Wire
    Nanotubes
    nanotubes
    metals
    nanoparticles
    Metal nanoparticles
    Substrates
    Metals
    Chemical vapor deposition
    flow velocity
    Flow rate
    vapor deposition
    methylidyne

    All Science Journal Classification (ASJC) codes

    • Engineering(all)
    • Physics and Astronomy(all)

    これを引用

    Growth of horizontally-aligned single-walled carbon nanotubes on sapphire surface by needle-scratching method. / Ago, Hiroki; Kayo, Yasumichi; Tsuji, Masaharu.

    :: Japanese Journal of Applied Physics, 巻 51, 番号 4 PART 2, 04DN02, 01.04.2012.

    研究成果: ジャーナルへの寄稿記事

    @article{95e5580c085840e982505d9d5e8ea201,
    title = "Growth of horizontally-aligned single-walled carbon nanotubes on sapphire surface by needle-scratching method",
    abstract = "We report the growth of single-walled carbon nanotubes (SWNTs) over metal nanoparticles which are formed by scratching sapphire surface with metal wires. The chemical vapor deposition over sapphire substrate scratched with Fe and Co metal wires gives horizontally aligned SWNTs, while no nanotube growth is observed for Au, Mo, and Ni wires. This result suggests that the nanoparticles scattered from Fe and Co wires act as the catalyst for SWNT growth, being different from the previously proposed substrate-catalyzed reaction mechanism. Further, we study the effects of the flow rates of CH 4-H 2 gases during the SWNT growth on the nanotube density and diameter.",
    author = "Hiroki Ago and Yasumichi Kayo and Masaharu Tsuji",
    year = "2012",
    month = "4",
    day = "1",
    doi = "10.1143/JJAP.51.04DN02",
    language = "English",
    volume = "51",
    journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
    issn = "0021-4922",
    publisher = "Institute of Physics",
    number = "4 PART 2",

    }

    TY - JOUR

    T1 - Growth of horizontally-aligned single-walled carbon nanotubes on sapphire surface by needle-scratching method

    AU - Ago, Hiroki

    AU - Kayo, Yasumichi

    AU - Tsuji, Masaharu

    PY - 2012/4/1

    Y1 - 2012/4/1

    N2 - We report the growth of single-walled carbon nanotubes (SWNTs) over metal nanoparticles which are formed by scratching sapphire surface with metal wires. The chemical vapor deposition over sapphire substrate scratched with Fe and Co metal wires gives horizontally aligned SWNTs, while no nanotube growth is observed for Au, Mo, and Ni wires. This result suggests that the nanoparticles scattered from Fe and Co wires act as the catalyst for SWNT growth, being different from the previously proposed substrate-catalyzed reaction mechanism. Further, we study the effects of the flow rates of CH 4-H 2 gases during the SWNT growth on the nanotube density and diameter.

    AB - We report the growth of single-walled carbon nanotubes (SWNTs) over metal nanoparticles which are formed by scratching sapphire surface with metal wires. The chemical vapor deposition over sapphire substrate scratched with Fe and Co metal wires gives horizontally aligned SWNTs, while no nanotube growth is observed for Au, Mo, and Ni wires. This result suggests that the nanoparticles scattered from Fe and Co wires act as the catalyst for SWNT growth, being different from the previously proposed substrate-catalyzed reaction mechanism. Further, we study the effects of the flow rates of CH 4-H 2 gases during the SWNT growth on the nanotube density and diameter.

    UR - http://www.scopus.com/inward/record.url?scp=84860364599&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84860364599&partnerID=8YFLogxK

    U2 - 10.1143/JJAP.51.04DN02

    DO - 10.1143/JJAP.51.04DN02

    M3 - Article

    AN - SCOPUS:84860364599

    VL - 51

    JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

    JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

    SN - 0021-4922

    IS - 4 PART 2

    M1 - 04DN02

    ER -