Growth mechanism and internal structure of vertically aligned single-walled carbon nanotubes

Erik Einarsson, Masayuki Kadowaki, Kazuaki Ogura, Jun Okawa, Rong Xiang, Zhengyi Zhang, Takahisa Yamamoto, Yuichi Ikuhara, Shigeo Maruyama

    研究成果: Article査読

    18 被引用数 (Scopus)

    抄録

    An in situ optical absorbance technique was used to monitor the growth of vertically aligned single-walled carbon nanotubes (VA-SWNTs) at various temperatures and pressures. The effects of the growth temperature and ethanol pressure on the initial growth rate and catalyst lifetime were investigated. It was found that the ideal pressure for VA-SWNT synthesis changes with the growth temperature, shifting toward higher pressure as the growth temperature increases. It was also found that the growth reaction is first-order below this ideal pressure. Additionally, the internal structure of the VA-SWNT film was observed at different depths into the film by transmission electron microscopy. The absence of large bundles was confirmed, and little change in the structure was observed to a depth of approximately 1 μm.

    本文言語English
    ページ(範囲)6093-6098
    ページ数6
    ジャーナルJournal of Nanoscience and Nanotechnology
    8
    11
    DOI
    出版ステータスPublished - 2008 11月

    ASJC Scopus subject areas

    • バイオエンジニアリング
    • 化学 (全般)
    • 生体医工学
    • 材料科学(全般)
    • 凝縮系物理学

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