Measurements of the population lifetime of D band and G′ band phonons in single-walled carbon nanotubes

John M. Nesbitt, David C. Smith

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We report time-resolved incoherent anti-Stokes Raman scattering measurements of the dynamics of the D and G′ bands in single-walled carbon nanotubes at excitation energies of 1.51 and 1.63 eV over the temperature range 4-330 K. The measurements indicate that the population lifetimes (∼1 ps) of the phonons responsible for the D band are dependent on nanotube type. The temperature dependencies are consistent with anharmonic decay of the phonons into one low (<190 cm-1) and one high energy phonon.

Original languageEnglish
Pages (from-to)416-422
Number of pages7
JournalNano Letters
Volume13
Issue number2
DOIs
StatePublished - Feb 13 2013
Externally publishedYes

Keywords

  • Nanotube
  • Raman
  • anharmonic
  • lifetime
  • phonon

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