Measurements of the population lifetime of D band and G? band phonons in single-walled carbon nanotubes
Measurements of the population lifetime of D band and G? band phonons in single-walled carbon nanotubes
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.
416-422
Nesbitt, John M.
cdbbf2a8-da2b-473c-aac6-f3d062245685
Smith, David C.
d9b2c02d-b7ea-498b-9ea1-208a1681536f
8 January 2013
Nesbitt, John M.
cdbbf2a8-da2b-473c-aac6-f3d062245685
Smith, David C.
d9b2c02d-b7ea-498b-9ea1-208a1681536f
Nesbitt, John M. and Smith, David C.
(2013)
Measurements of the population lifetime of D band and G? band phonons in single-walled carbon nanotubes.
Nano Letters, 13 (2), .
(doi:10.1021/nl303569n).
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.
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Published date: 8 January 2013
Organisations:
Quantum, Light & Matter Group
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Local EPrints ID: 358628
URI: http://eprints.soton.ac.uk/id/eprint/358628
ISSN: 1530-6984
PURE UUID: 11851c2e-537a-4833-9555-30e8f73f8af4
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Date deposited: 11 Oct 2013 13:59
Last modified: 14 Mar 2024 15:06
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Author:
John M. Nesbitt
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