Vertically aligned carbon nanotube growth from Ni nanoparticles prepared by ion implantation

T. Iwasaki, S. Mejima, T. Koide, R. Morikane, H. Nakayama, T. Shinada, I. Ohdomari, Hiroshi Kawarada

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    Vertically aligned carbon nanotubes (CNTs) were synthesized from Ni nanoparticles prepared by ion implantation. Ni ions were implanted at 30 keV into thermally grown SiO2 substrates using a focused-ion-beam. High-density nanoparticle formation was investigated with high doses up to 5.0 × 1017 ions/cm2. Dense Ni nanoparticles in the order of 1011-1012 cm- 2 were obtained on a SiO2 substrate, and the particle density and diameter were controlled by post-implantation annealing. Particles annealed at 700 °C led to vertically aligned CNTs. Interestingly, catalysts were longer along the vertical axis and the lower half of the Ni particle was buried in SiO2.

    Original languageEnglish
    Pages (from-to)1443-1446
    Number of pages4
    JournalDiamond and Related Materials
    Volume17
    Issue number7-10
    DOIs
    Publication statusPublished - 2008 Jul

    Fingerprint

    Carbon Nanotubes
    Ion implantation
    ion implantation
    Carbon nanotubes
    carbon nanotubes
    Nanoparticles
    nanoparticles
    Ions
    Focused ion beams
    Substrates
    implantation
    ions
    ion beams
    Annealing
    catalysts
    dosage
    Catalysts
    annealing

    Keywords

    • Carbon nanotube
    • Ion implantation
    • Nanoparticle
    • Vertically aligned

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Materials Chemistry
    • Surfaces, Coatings and Films
    • Surfaces and Interfaces

    Cite this

    Vertically aligned carbon nanotube growth from Ni nanoparticles prepared by ion implantation. / Iwasaki, T.; Mejima, S.; Koide, T.; Morikane, R.; Nakayama, H.; Shinada, T.; Ohdomari, I.; Kawarada, Hiroshi.

    In: Diamond and Related Materials, Vol. 17, No. 7-10, 07.2008, p. 1443-1446.

    Research output: Contribution to journalArticle

    Iwasaki, T, Mejima, S, Koide, T, Morikane, R, Nakayama, H, Shinada, T, Ohdomari, I & Kawarada, H 2008, 'Vertically aligned carbon nanotube growth from Ni nanoparticles prepared by ion implantation', Diamond and Related Materials, vol. 17, no. 7-10, pp. 1443-1446. https://doi.org/10.1016/j.diamond.2008.02.006
    Iwasaki, T. ; Mejima, S. ; Koide, T. ; Morikane, R. ; Nakayama, H. ; Shinada, T. ; Ohdomari, I. ; Kawarada, Hiroshi. / Vertically aligned carbon nanotube growth from Ni nanoparticles prepared by ion implantation. In: Diamond and Related Materials. 2008 ; Vol. 17, No. 7-10. pp. 1443-1446.
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    AU - Iwasaki, T.

    AU - Mejima, S.

    AU - Koide, T.

    AU - Morikane, R.

    AU - Nakayama, H.

    AU - Shinada, T.

    AU - Ohdomari, I.

    AU - Kawarada, Hiroshi

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