Journal
NANO LETTERS
Volume 13, Issue 2, Pages 416-422Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl303569n
Keywords
Nanotube; Raman; anharmonic; lifetime; phonon
Categories
Funding
- EPSRC, U.K. [EP/C006763/1]
- Engineering and Physical Sciences Research Council [EP/C006763/1] Funding Source: researchfish
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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 (similar to 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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