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 language | English |
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Pages (from-to) | 1205-1209 |
Number of pages | 5 |
Journal | Scripta Materialia |
Volume | 52 |
Issue number | 12 |
DOIs | |
Publication status | Published - Jun 2005 |
Externally published | Yes |
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