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
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.
|Subjects:||Analytical Science > Microscopy and probe methods|
Physical Science > Nano objects
|Deposited On:||20 Jan 2009 14:51|
|Last Modified:||20 Jan 2009 14:51|
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