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Facile method to control the diameter and density of carbon nanotubes by using a catalyst-embedded supporting layer
- Author(s)
- Lee, Seung-Woong, Han, Jaeseok, Im, Hyunsik, Choi, WonCheol, Park, Young S., Yoon, Seok-Beom
- Issued Date
- 2015-06
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.66, no.11, pp.1715 - 1719
- 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 Al
2 O3 . The type of CNTs was changed from single-walled CNTs with a diameter of 0.85 ~ 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.
- Publisher
- KOREAN PHYSICAL SOC
- ISSN
- 0374-4884
- Keyword (Author)
- Carbon-nanotubes, catalyst-embedded supporting layer, CVD growth, Diameter and density control
- Keyword
- FIELD-EMISSION, RAMAN-SCATTERING, ELECTRON SOURCE, SIZE, PERFORMANCE, GROWTH
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