Polarized raman study of aligned multiwalled carbon nanotubes

A. M. Rao, A. Jorio, M. A. Pimenta, M. S.S. Dantas, R. Saito, G. Dresselhaus, M. S. Dresselhaus

Research output: Contribution to journalArticlepeer-review

333 Citations (Scopus)

Abstract

Polarized Raman spectra of high purity aligned arrays of multiwalled carbon nanotubes, prepared on silica substrates from the thermal decomposition of a ferrocene-xylene mixture, show a strong dependence of the graphitelike G band and the disorder-induced D band on the polarization geometry employed in the experiments. The experimental G-band intensity exhibits a minimum at θm = 55 ° in the VV configuration, in good agreement with theoretical predictions of a characteristic minimum at 54.7° for A1g modes in single wall nanotubes, where θm denotes the angle between the polarization direction and the nanotube axis.

Original languageEnglish
Pages (from-to)1820-1823
Number of pages4
JournalPhysical review letters
Volume84
Issue number8
DOIs
Publication statusPublished - 2000
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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