D-band Raman spectra of graphite and single wall carbon nanotubes

R. Saito, A. Grueneis, L. G. Cançado, M. A. Pimenta, A. Jorio, A. G. Souza Filho, G. Dresselhaus, M. S. Dresselhaus

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The double resonance Raman spectra of the disorder-induced D-band and some other non-zone-center phonon modes are discussed for two-dimensional (2D) graphite and to some extent for single wall carbon nanotubes (SWNTs). The phonon dispersion relations of graphite can be determined using Raman spectroscopy by measuring the non-zone center Raman phonon frequencies in combination with theoretically determined phonon q-vectors. We report a fit of the phonon dispersion relations to experimental Raman spectra which were previously observed but have not yet been assigned to specific phonon branches. We found that the D-band and the G′-band of 2D graphite consist of, respectively, two and one Raman Lorentzian peaks, while 3D graphite shows two G′-band Lorentzian peaks. The appearance of two G′ peaks in the resonance Raman spectra of SWNTs may come from resonances of one laser line with two different van Hove singularities.

Original languageEnglish
Pages (from-to)277-282
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume706
Publication statusPublished - 2002 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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