Formation of wedge-shaped carbon film by chemical vapor deposition method and observation using transmission electron microscopy

K. Kaneko, R. Nagayama, K. Inoke, W. J. Moon, Z. Horita, Y. Hayashi, T. Tokunaga

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)

    Abstract

    Unusual morphologies of carbon nanofibers (CNFs) fabricated by the microwave plasma-enhanced chemical vapor deposition method were confirmed by transmission electron microscopy. In particular, the presence and distribution of wedge-shaped carbon films, consisting of amorphous carbon and CNFs, were observed by three-dimensional electron tomography (3D-ET), and their growth mechanisms were modeled. High-resolution transmission electron microscopy (HRTEM) revealed the presence of amorphous carbon on carbon nanofibers. Wedge-shaped carbon films are most likely caused by the bridging of individual CNFs by amorphous carbon from plasmarized carbon. The combination of 3D-ET and HRTEM clearly provides a successful strategy for determining 3D morphologies with characteristic sizes on the nanometer scale.

    Original languageEnglish
    Pages (from-to)1205-1209
    Number of pages5
    JournalScripta Materialia
    Volume52
    Issue number12
    DOIs
    Publication statusPublished - Jun 2005

    All Science Journal Classification (ASJC) codes

    • General Materials Science
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys

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