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Similarities in the Raman RBM and D bands in double-wall carbon nanotubes

Abstract : We examine the Raman spectrum of double wall carbon nanotubes with a broad size distribution in agglomerated form and partially filled with Pb I 2 . Using spectroscopic mapping we find a statistical correlation between the radial breathing mode (RBM) and D band intensity. All the investigated samples show the same correlation using the 514 nm laser excitation. We derive the phonon deformation potential for the D band and extend the dispersion of the D band to the UV. We find that the intensity of the D band decreases with increasing pressure and vanishes at a pressure comparable to what has been observed earlier for the RBM and D ∗ band.
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Contributeur : Lilloa Université de Lille <>
Soumis le : mercredi 19 février 2020 - 12:03:11
Dernière modification le : dimanche 25 juillet 2021 - 19:20:12




Pascal Puech, Ayman Bassil, J. Gonzalez, Ch. Power, Emmanuel Flahaut, et al.. Similarities in the Raman RBM and D bands in double-wall carbon nanotubes. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2005, Physical Review B, 72 (15), pp.155436. ⟨10.1103/physrevb.72.155436⟩. ⟨hal-02484341⟩



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