Abstract
Temperature-dependent resistivity measurements were carried out on bamboo-shaped multiwalled carbon nanotubes (MWNTs) grown by thermal chemical vapor deposition. They were deposited on Al2O3/Ti and SiO2/Ti substrates using cobalt and iron catalysts, respectively. As a result, a metallic conductivity, i.e. resistivities with a positive temperature slope, was observed for the MWNTs grown on the SiO2/Ti substrates. The different temperature behaviors of the resistivity for the MWNTs grown on different substrates are discussed in view of the substrate morphology and crystallinity.
Original language | English |
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Pages (from-to) | 619-622 |
Number of pages | 4 |
Journal | Solid State Communications |
Volume | 122 |
Issue number | 11 |
DOIs | |
State | Published - Jun 2002 |
Keywords
- A. Carbon nanotubes
- B. Thermal chemical vapor deposition
- C. Scanning and transmission electron microscopy
- D. Electronic transport