Intermediate frequency modes in Raman spectra of Ar+-irradiated single-wall carbon nanotubes

Viera Skákalova, Janina Maultzsch, Z. Osváth, L. Bíró, Siegmar Roth

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We study the effect of Ar+ irradiation on the intermediate frequency modes (IFM) in Raman spectra of single-wall carbon nanotubes. We observe new features in the intermediate frequency region from 386 to 635 cm-1 as the defect concentration increases, whereas at the same time there is a decrease of other IFM modes. After annealing in vacuum, the IFM modes recover and become similar to those of the nanotubes before irradiation. We interpret the new features in the Raman spectra as originating from the phonon density of states that becomes visible in the Raman process due to the presence of defects.

Original languageEnglish
Pages (from-to)138-140
Number of pages3
JournalPhysica Status Solidi - Rapid Research Letters
Volume1
Issue number4
DOIs
Publication statusPublished - Jul 2007

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Carbon Nanotubes
intermediate frequencies
Raman scattering
Carbon nanotubes
carbon nanotubes
Irradiation
Raman spectra
Defects
Nanotubes
Vacuum
Annealing
irradiation
defects
nanotubes
vacuum
annealing

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)

Cite this

Intermediate frequency modes in Raman spectra of Ar+-irradiated single-wall carbon nanotubes. / Skákalova, Viera; Maultzsch, Janina; Osváth, Z.; Bíró, L.; Roth, Siegmar.

In: Physica Status Solidi - Rapid Research Letters, Vol. 1, No. 4, 07.2007, p. 138-140.

Research output: Contribution to journalArticle

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