Article Dans Une Revue Physical Review Letters Année : 2005

Electron energy loss spectroscopy measurement of the optical gaps on individual boron nitride single-walled and multiwalled nanotubes

R. Arenal
  • Fonction : Auteur
A. Loiseau
  • Fonction : Auteur

Résumé

Spatially resolved electron energy loss spectroscopy experiments have been performed in an electron microscope on several individual boron nitride (BN) single-, double-, and triple-walled nanotubes, whose diameters and number of shells have been carefully measured. In the low-loss region (from 2 to 50 eV) the spectra have been analyzed within the framework of the continuum dielectric theory, leading to the conclusion of a weak influence of out-of-plane contribution to the dielectric response of the tubes. The gap has been measured to be independent of the nanotubes geometry, and close to the in-plane gap value of hexagonal BN (5.8±0.2eV).

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Dates et versions

hal-04944594 , version 1 (13-02-2025)

Identifiants

Citer

R. Arenal, O. Stéphan, M. Kociak, D. Taverna, A. Loiseau, et al.. Electron energy loss spectroscopy measurement of the optical gaps on individual boron nitride single-walled and multiwalled nanotubes. Physical Review Letters, 2005, 95 (12), ⟨10.1103/PhysRevLett.95.127601⟩. ⟨hal-04944594⟩
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