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Facile method to control the diameter and density of carbon nanotubes by using a catalyst-embedded supporting layer
- Issue Date
- Jun-2015
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Carbon-nanotubes; catalyst-embedded supporting layer; CVD growth; Diameter and density control
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.66, no.11, pp 1715 - 1719
- Pages
- 5
- Indexed
- SCI
SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 66
- Number
- 11
- Start Page
- 1715
- End Page
- 1719
- ISSN
- 0374-4884
1976-8524
- Abstract
- We have investigated an effective method to control the diameter and the density of carbon nanotubes (CNTs) by introducing a catalyst-embedded supporting layer (CSL) prepared by using rf-magnetron sputtering with a mixed target consisting of Fe and Al2O3. The type of CNTs was changed from single-walled CNTs with a diameter of 0.85 similar to 1.55 nm to multi-walled CNTs with increasing rf-magnetron sputtering power. The controllability of the diameter and the density of the CNTs was confirmed to have been improved by using the rf power during the sputtering of the CSL and the concentration of Fe in the mixed target, respectively.
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