Surface-enhanced and normal stokes and anti-stokes Raman spectroscopy of single-walled carbon nanotubes.
Surface enhancement factors of at least 10(12) for the Raman scattering of single-walled carbon nanotubes in contact with fractal silver colloidal clusters result in measuring very narrow Raman bands corresponding to the homogeneous linewidth of the tangential C-C stretching mode in semiconducting nanotubes. Normal and surface-enhanced Stokes and anti-Stokes Raman spectra are discussed in the framework of selective resonant Raman contributions of semiconducting or metallic nanotubes to the Stokes or anti-Stokes spectra, respectively, of the population of vibrational levels due to the extremely strong surface-enhanced Raman process, and of phonon-phonon interactions.
Kneipp
K
K
George R. Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Kneipp
H
H
Corio
P
P
Brown
S D
SD
Shafer
K
K
Motz
J
J
Perelman
L T
LT
Hanlon
E B
EB
Marucci
A
A
Dresselhaus
G
G
Dresselhaus
M S
MS
D002244:Carbon; D003102:Colloids; D012542:Scattering, Radiation; D012834:Silver; D013059:Spectrum Analysis, Raman / Q000379:methods*; D013499:Surface Properties
D003102:Colloids; D012834:Silver; D002244:Carbon