A systematic procedure for determining the chiral indices of multi-walled carbon nanotubes using electron diffraction-each and every shell

被引:19
|
作者
Deniz, Hakan [1 ]
Derbakova, Anna [1 ]
Qin, Lu-Chang [1 ,2 ]
机构
[1] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA
[2] Univ N Carolina, Curriculum Appl Sci & Engn, Chapel Hill, NC 27599 USA
关键词
Electron diffraction; Carbon nanotubes; RAMAN-SCATTERING; ATOMIC-STRUCTURE; OPTICAL-SPECTRA; SYMMETRY; MICROTUBULES; HELICITY; ACCURATE; N; M;
D O I
10.1016/j.ultramic.2010.09.010
中图分类号
TH742 [显微镜];
学科分类号
摘要
Electron diffraction technique has been developed and refined to establish a systematic procedure to determine the chirality (chiral indices) of each and every shell in a carbon nanotube. We have introduced a zoning scheme to sort the reflection layer lines from the multiple shells of a carbon nanotube. An application of the procedure is demonstrated as an example for an eleven-shell carbon nanotube whose chiral indices of each and every shell were determined unambiguously. The revealed structure of the carbon nanotube suggests that there is no strong correlation among the shells as the nanotube was formed. The limitations of the current method are also discussed. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:66 / 72
页数:7
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