Nano Archive

Smallest carbon nanotube assigned with atomic resolution accuracy

Guan, Lunhui and Suenaga, Kazu and Iijima, Sumio (2008) Smallest carbon nanotube assigned with atomic resolution accuracy. NANO LETTERS, 8 (2). pp. 459-462.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/nl072396j

Abstract

The smallest carbon nanotubes with the chiral index (3,3), (4,3), or (5,1) were unambiguously identified for the first time. They were grown inside single-wall carbon nanotubes with the diameter of 1.0-1.2 nm, and the chiral indices were experimentally assigned beyond a doubt by an aberration-corrected high-resolution transmission electron microscopy (HR-TEM). In contrast to a theoretical prediction, the (3,3) nanotube is rather unstable and extremely sensitive to the electron beam and, therefore, may not survive alone without the protection of outer nanotube. The cap structure of (3,3) nanotube is also well-explained by a half-dome of C-20 fullerene, which consists of six pentagons only.

Item Type:Article
Subjects:Analytical Science > Microscopy and probe methods
Physical Science > Nano objects
ID Code:564
Deposited By:IoN
Deposited On:20 Jan 2009 14:51
Last Modified:20 Jan 2009 14:51

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