Next Article in Journal
Next Article in Special Issue
Previous Article in Journal
Previous Article in Special Issue
Materials 2010, 3(4), 2725-2734; doi:10.3390/ma3042725
Article

Helicity Distributions of Single-Walled Carbon Nanotubes and Its Implication on the Growth Mechanism

,
 and *
Received: 25 February 2010; in revised form: 10 April 2010 / Accepted: 12 April 2010 / Published: 14 April 2010
(This article belongs to the Special Issue Synthesis of Carbon Nanotube)
Download PDF [449 KB, uploaded 14 April 2010]
Abstract: Single-walled nanotubes (SWNT) have attracted significant attention because of the substance’s superior crystal quality, high thermal conductivity and current carrying capacity, thus emerging as an attractive material for nanoelectrics. To optimize the selection of SWNT structures in large-scale synthesis, an understanding of their growth mechanism is necessary. We report studies of the helicity distributions of SWNT using electron nanodiffraction. The overall statistical distribution of helicity has peaks at 0° and 30°. The peak evident at 0° was found to be a sharp local maximum, while the peak at 30° was broader. We also found that the helicity distribution varies from region to region of micrometer size. This observation indicates that local environment affects nanotube growth, resulting in different structural distributions.
Keywords: carbon nanotube; helicity; growth mechanism carbon nanotube; helicity; growth mechanism
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Wijeratne, S.S.; Harris, N.C.; Kiang, C.-H. Helicity Distributions of Single-Walled Carbon Nanotubes and Its Implication on the Growth Mechanism. Materials 2010, 3, 2725-2734.

AMA Style

Wijeratne SS, Harris NC, Kiang C-H. Helicity Distributions of Single-Walled Carbon Nanotubes and Its Implication on the Growth Mechanism. Materials. 2010; 3(4):2725-2734.

Chicago/Turabian Style

Wijeratne, Sithara S.; Harris, Nolan C.; Kiang, Ching-Hwa. 2010. "Helicity Distributions of Single-Walled Carbon Nanotubes and Its Implication on the Growth Mechanism." Materials 3, no. 4: 2725-2734.


Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert