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.
Institute of Physics, Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, China. zhou@cemes.fr
Zhenping
Z
Zhou
Xinyuan
X
Dou
Lijie
L
Ci
Li
L
Song
Dongfang
D
Liu
Yan
Y
Gao
Jianxiong
J
Wang
Lifeng
L
Liu
Weiya
W
Zhou
Sishen
S
Xie
Dongyun
D
Wan