Physical and electronic structure in carbon nanotubes

Electron nanodiffraction patterns and high-resolution images from bundles of single-walled carbon nanotubes (SWNTs) have been obtained to determine the helicity and the packing of tubes. It is found that there is no predominating helicity, only a weak tendency of being of `armchair' structure;...

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Bibliographic Details
Published in:Chemical physics letters 1998-12, Vol.298 (1-3), p.170-176
Main Authors: He, R.R., Jin, H.Z., Zhu, Jing, Yan, Y.J., Chen, X.H.
Format: Article
Language:English
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Summary:Electron nanodiffraction patterns and high-resolution images from bundles of single-walled carbon nanotubes (SWNTs) have been obtained to determine the helicity and the packing of tubes. It is found that there is no predominating helicity, only a weak tendency of being of `armchair' structure; the inter-tube spacing is close to 0.34 nm and several packing orientations may coexist in a single bundle. Electron energy loss spectra from the bundles of SWNTs and multi-walled carbon nanotubes are used to study electronic structure. The π-bonding is proposed as inter-tube bonding in the bundles. The plasmon energy Ep depends on the diameter and inter-tube (or inter-walled) spacing.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(98)01213-5