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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.
https://hal.univ-lille.fr/hal-02484341
Contributeur : Lilloa Université de Lille <>
Soumis le : mercredi 19 février 2020 - 12:03:11
Dernière modification le : dimanche 25 juillet 2021 - 19:20:12
Contributeur : Lilloa Université de Lille <>
Soumis le : mercredi 19 février 2020 - 12:03:11
Dernière modification le : dimanche 25 juillet 2021 - 19:20:12