Stoichiometry dependence of the Raman spectrum of alkali-doped single-wall carbon nanotubes

N. Bendiab, E. Anglaret, J.-L. Bantignies, A. Zahab, J. L. Sauvajol, P. Petit, C. Mathis, and S. Lefrant
Phys. Rev. B 64, 245424 – Published 10 December 2001
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Abstract

Li-doped films with controlled stoichiometries were prepared by performing redox reactions between single-wall carbon nanotubes thin films and solutions of organic radical anions. A monotonic upshift of the tangential modes is evidenced for LixC compounds (0<~x<~0.17). A similar doping dependence of the Raman profile is observed for vapor-phase Rb-doped samples. This universal behavior of the doping-induced upshift of the tangential modes is concomitant to a loss of absorption bands in the optical spectra and to a monotonic increase of the conductivity.

  • Received 18 June 2001

DOI:https://doi.org/10.1103/PhysRevB.64.245424

©2001 American Physical Society

Authors & Affiliations

N. Bendiab, E. Anglaret, J.-L. Bantignies, A. Zahab, and J. L. Sauvajol

  • Groupe de Dynamique des Phases Condensées (UMR CNRS 5581), Université Montpellier II, 34095 Montpellier Cedex 5, France

P. Petit and C. Mathis

  • Institut Charles Sadron, 67000 Strasbourg, France

S. Lefrant

  • Institut des Matériaux de Nantes, Laboratoire de Physique Cristalline, 44322 Nantes Cedex 3, France

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Issue

Vol. 64, Iss. 24 — 15 December 2001

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