Temperature dependence of the Raman spectra of individual carbon nanotubes.
Resonant Raman scattering (RRS) spectra of individual carbon nanotubes on a SiO2 substrate have been investigated first in the temperature range of 100-600 K (Phys. Rev. B 2002, 66, 115411). It was revealed by the intensity abnormality of the radial breathing mode (RBM) that the carbon nanotubes have a temperature-dependent density of electronic states. This means that the previously reported temperature coefficients of RBM of carbon nanotubes are smaller than their "real" ones for the bulk samples of single- or double-walled carbon nanotubes. Comparatively, the G line of individual nanotubes shows no observable difference relative to the bulk samples.
Zhou
Zhenping
Z
Institute of Physics, Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, China. zhou@cemes.fr
Dou
Xinyuan
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Ci
Lijie
L
Song
Li
L
Liu
Dongfang
D
Gao
Yan
Y
Wang
Jianxiong
J
Liu
Lifeng
L
Zhou
Weiya
W
Xie
Sishen
S
Wan
Dongyun
D