Interactions between individual carbon nanotubes studied by Rayleigh scattering spectroscopy.
The electronic properties of single-walled carbon nanotubes (SWNTs) are altered by intertube coupling whenever bundles are formed. These effects are examined experimentally by applying Rayleigh scattering spectroscopy to probe the optical transitions of given individual SWNTs in their isolated and bundled forms. The transition energies of SWNTs are observed to undergo redshifts of tens of meVs upon bundling with other SWNTs. These intertube coupling effects can be understood as arising from the mutual dielectric screening of SWNTs in a bundle.
Wang
Feng
F
Department of Physics, Columbia University, New York, New York 10027, USA.
Sfeir
Matthew Y
MY
Huang
Limin
L
Huang
X M Henry
XM
Wu
Yang
Y
Kim
Jaehee
J
Hone
James
J
O'Brien
Stephen
S
Brus
Louis E
LE
Heinz
Tony F
TF