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

10 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 1 2005
Externally publishedYes

Keywords

  • Carbon nanofibers
  • Chemical vapor deposition
  • Electron tomography
  • Transmission electron microscope
  • Wedge-shaped nanofibers

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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