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- Theoretical infrared phonon modes in doublewalled carbon nanotubes doi link

Auteur(s): Rahmani A. H, Boutahir M., El Biyaali A., Fakrach B., Chadli H., Sbai K., Hermet P., Bantignies J.-L., Rahmani A

(Article) Publié: Rsc Advances, vol. 6 p.41025-41031 (2016)


Ref HAL: hal-01308176_v1
DOI: 10.1039/c6ra03672d
WoS: 000375270600052
Exporter : BibTex | endNote
8 Citations
Résumé:

In this theoretical work, we study the polarized infrared spectra of double-walled carbon nanotubes (DCNTs) as a function of their diameters, chiralities and lengths. For infinite DCNTs, mathematical relations are derived to estimate the diameter of the inner and outer tubes from the knowledge of their experimental mid-infrared spectra. The infrared spectra of DCNTs with a finite length are also calculated using the spectral moments method. We observe additional infrared bands as a function of the relative lengths of the inner and outer tubes. Bands located below 900 cm-1 give reliable information about these lengths.