Abstract
We have grown vertically well-aligned multiwalled carbon nanotubes (CNT) on a large area of cobalt-nickel (Co-Ni) co-deposited silicon oxide substrate by thermal chemical vapor deposition using C2H2 gas, at 950°C. The diameter of CNTs is in the range of 50-120 nm and the length is about 130 μm. The grown CNTs have a bamboo structure and closed tip with no catalytic particles inside. As the particle size of Co-Ni catalyst decreases, the vertical alignment is enhanced. The CNTs exhibits a low turn-on voltage of 0.8 V/μm with an emission current density of 0.1 μA cm-2.
Original language | English |
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Pages (from-to) | 554-559 |
Number of pages | 6 |
Journal | Chemical Physics Letters |
Volume | 323 |
Issue number | 5-6 |
DOIs | |
Publication status | Published - 2000 Jun 23 |
Externally published | Yes |
Bibliographical note
Funding Information:The authors would like to thank J.B. Park (Korea Materials Analysis Co.) for the TEM analysis. J.P. is grateful for financial support from the research program of Korea University.
ASJC Scopus subject areas
- General Physics and Astronomy
- Physical and Theoretical Chemistry