On-chip Rayleigh imaging and spectroscopy of carbon nanotubes.
We report a novel on-chip Rayleigh imaging technique using wide-field laser illumination to measure optical scattering from individual single-walled carbon nanotubes (SWNTs) on a solid substrate with high spatial and spectral resolution. This method in conjunction with calibrated AFM measurements accurately measures the resonance energies and diameters for a large number of SWNTs in parallel. We apply this technique for fast mapping of key SWNT parameters, including the electronic-types and chiral indices for individual SWNTs, position and frequency of chirality-changing events, and intertube interactions in both bundled and distant SWNTs.
Joh
Daniel Y
DY
School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA. .
Herman
Lihong H
LH
Ju
Sang-Yong
SY
Kinder
Jesse
J
Segal
Michael A
MA
Johnson
Jeffreys N
JN
Chan
Garnet K L
GK
Park
Jiwoong
J