Abstract:
The frequency of the Raman active A1g radial breathing mode has been widely used as a tool to estimate the distribution of diameters of single wall carbon nanotubes (SWNT). However, the relation between frequency and diameter is not straightforward and results are model-dependent. Because most of the experiments are performed on bundles and not on isolated tubes, the model should especially take into account the van der Waals intertube interactions. Here, we use a pair-potential approach to account for such interactions and we derive a nonlinear relation between the SWNT diameter and the frequency of the A1g radial breathing modes. We demonstrate a good agreement between calculations and the diameters derived from diffraction experiments on the same samples.
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Received 22 December 1999 and Received in final form 17 July 2000
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Rols, S., Righi, A., Alvarez, L. et al. Diameter distribution of single wall carbon nanotubes in nanobundles. Eur. Phys. J. B 18, 201–205 (2000). https://doi.org/10.1007/s100510070049
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DOI: https://doi.org/10.1007/s100510070049