Dependence of exciton transition energy of single-walled carbon nanotubes on surrounding dielectric materials

Y. Miyauchi, R. Saito, K. Sato, Y. Ohno, S. Iwasaki, T. Mizutani, J. Jiang, S. Maruyama

Research output: Contribution to journalArticlepeer-review

93 Citations (Scopus)

Abstract

We theoretically investigate the environmental effect for optical transition energies of single-walled carbon nanotubes (SWNTs), by calculating the exciton transition energies of SWNTs. The static dielectric constants used in the exciton calculation can be expressed as a function of the dielectric constants of the surrounding material and that of the SWNT, in which the static and dynamic dielectric constants of the SWNT represent the screening effect of core electrons and the valence π electrons, respectively. The calculated results reproduce the environmental effect of the experimental transition energies for various surrounding materials and for various diameters of SWNTs.

Original languageEnglish
Pages (from-to)394-399
Number of pages6
JournalChemical Physics Letters
Volume442
Issue number4-6
DOIs
Publication statusPublished - 2007 Jul 17

ASJC Scopus subject areas

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

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