title: Characterization of bundled and individual triple-walled carbon nanotubes by resonant Raman spectroscopy.
abstract: The optical characterization of bundled and individual triple-walled carbon nanotubes was studied for the first time in detail by using resonant Raman spectroscopy. In our approach, the outer tube of a triple-walled carbon nanotube system protects the two inner tubes (or equivalently the inner double-walled carbon nanotube) from external environment interactions making them a partially isolated system. Following the spectral changes and line-widths of the radial breathing modes and G-band by performing laser energy dependent Raman spectroscopy, it is possible to extract important information as regards to the electronic and vibrational properties, tube diameters, wall-to-wall distances, radial breathing mode, and G-band resonance evolutions as well as high-curvature intertube interactions in isolated double- and triple-walled carbon nanotube systems.
authors: Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, United States. thirschm@physnet.uni-hamburg.de
authors: Thomas Ch
authors: TCh
authors: Hirschmann
authors: Paulo T
authors: PT
authors: Araujo
authors: Hiroyuki
authors: H
authors: Muramatsu
authors: Xu
authors: X
authors: Zhang
authors: Kornelius
authors: K
authors: Nielsch
authors: Yoong Ahm
authors: YA
authors: Kim
authors: Mildred S
authors: MS
authors: Dresselhaus