Size Effects in Carbon Nanotubes

Details Size Effects in Carbon Nanotubes Size Effects in Carbon Nanotubes

1998-11-04

arxiv.org/abs/cond-mat/9811046v1

Phys. Rev. Lett., 81 (1998) 1869-1872

Physics

Condensed Matter

Materials Science

4 pages. RevTeX. 4 figures

Scientific paper

10.1103/PhysRevLett.81.1869

The inter-shell spacing of multi-walled carbon nanotubes was determined by analyzing the high resolution transmission electron microscopy images of these nanotubes. For the nanotubes that were studied, the inter-shell spacing ${\hat{d}_{002}}$ is found to range from 0.34 to 0.39 nm, increasing with decreasing tube diameter. A model based on the results from real space image analysis is used to explain the variation in inter-shell spacings obtained from reciprocal space periodicity analysis. The increase in inter-shell spacing with decreased nanotube diameter is attributed to the high curvature, resulting in an increased repulsive force, associated with the decreased diameter of the nanotube shells.

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