Hahm, Myung Gwan and Kwon, Young-Kyun and Lee, Eunah and Ahn, Chi Won and Jung, Yung Joon. (2008) Diameter Selective Growth of Vertically Aligned Single Walled Carbon Nanotubes and Study on Their Growth Mechanism. Journal of Physical Chemistry C, 112 (44). pp. 17143-17147. ISSN 1932-7447
Full text not available from this repository. (Request a copy)Abstract
Diameter controlled vertically aligned single walled carbon nanotubes (VA-SWNTs) were synthesized by controlling flow rate of carbon source and dimension of catalyst nanoparticles. The large scale structural analysis demonstrating spatial distribution of SWNT diameters was conducted by a newly developed Raman Radial Breathing Mode (RBM) mapping technique. Also we investigated the fundamental mechanism of diameter selective growth of SWNTs during the CVD process through computational modeling. Our experimental and computational studies show that a lower flow rate of carbon source makes a smaller nucleation site for a SWNT resulting in a smaller diameter formation. On the other hand, a higher flow rate of carbon source forms a larger nucleation site growing a SWNT with the larger diameter.
| Item Type: | Article |
|---|---|
| Additional Information: | Reprinted with permission from "Diameter Selective Growth of Vertically Aligned Single Walled Carbon Nanotubes and Study on Their Growth Mechanism", Hahm M et al, J. Phys. Chem. C, 2008, 112 (44), pp 17143–17147. Copyright 2008 American Chemical Society. |
| InterNano Taxonomy: | Nanomanufacturing Processes > Deposition of Nanostructured Films or Nanostructures > Chemical vapor deposition (CVD) Nanoscale Objects and Nanostructured Materials > Nanotubes > Carbon nanotubes |
| Collections: | Nanomanufacturing Research Collection |
| Depositing User: | Moureen Kemei |
| Date Deposited: | 10 May 2010 21:37 |
| Last Modified: | 10 May 2010 21:37 |
| URI: | http://eprints.internano.org/id/eprint/453 |
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