Excitonic effects on radial breathing mode intensity of single wall carbon nanotubes

Kentaro Sato, Riichiro Saito, Ahmad R.T. Nugraha, Shigeo Maruyama

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

We develop exciton-photon and exciton-phonon interaction matrix elements for single wall carbon nanotubes within extended tight binding method. The exciton-photon matrix elements using the extended tight binding wave function have a large chirality dependence compared with the previous calculation by simple tight binding method. Using the exciton-photon and exciton-phonon matrix elements presented here, we calculate resonance Raman intensity for radial breathing mode as a function of diameter and chiral angle. Excitonic effect of resonance Raman intensities for the radial breathing mode is enhanced by the curvature and trigonal warping effects.

Original languageEnglish
Pages (from-to)94-98
Number of pages5
JournalChemical Physics Letters
Volume497
Issue number1-3
DOIs
Publication statusPublished - 2010 Sep 10

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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