Structural ( n, m) determination of isolated single-wall carbon nanotubes by resonant Raman scattering.
Ado Jorio,Riichiro Saito,Jason H. Hafner,Charles M. Lieber,M. Hunter,T. McClure,G. Dresselhaus,Mildred S. Dresselhaus +7 more
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TLDR
It is shown that the Raman scattering technique can give complete structural information for one-dimensional systems, such as carbon nanotubes, by measuring one radial breathing mode frequency omega(RBM) and using the theory of resonant transitions.Abstract:
We show that the Raman scattering technique can give complete structural information for one-dimensional systems, such as carbon nanotubes. Resonant confocal micro-Raman spectroscopy of an (n,m) individual single-wall nanotube makes it possible to assign its chirality uniquely by measuring one radial breathing mode frequency omega(RBM) and using the theory of resonant transitions. A unique chirality assignment can be made for both metallic and semiconducting nanotubes of diameter d(t), using the parameters gamma(0) = 2.9 eV and omega(RBM) = 248/d(t). For example, the strong RBM intensity observed at 156 cm(-1) for 785 nm laser excitation is assigned to the (13,10) metallic chiral nanotube on a Si/SiO2 surface.read more
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Preferential Growth of Semiconducting Single-Walled Carbon Nanotubes on Substrate by Europium Oxide
TL;DR: The successful growth of SWNTs by Eu2O3 catalyst provides new experimental information for understanding the preferential growth of s-SWNTs from Eu 2O3, which may be helpful for their controllable synthesis.
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Nondestructive purification of single-walled carbon nanotube rope through a battery-induced ignition and chemical solution approach
TL;DR: A two-step method for the purification of single-walled carbon nanotube (SWCNT) rope containing substantial catalyst particles embedded in carbonaceous shells was developed as discussed by the authors.
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Family behaviour of Raman-active phonon frequencies of single-wall nanotubes of C, BN and BC3.
TL;DR: Using a symmetry-based force-constant model of the lattice dynamics, the Raman-active phonon frequencies are calculated for almost 200 single-wall nanotubes of C, BN and BC(3), and the phonon frequency at Gamma point changes regularly with the chiral angle.
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Raman-active modes in homogeneous and inhomogeneous bundles of single-walled carbon nanotubes.
TL;DR: It is found that, for a finite (in)homogeneous bundle, additional breathing-like modes appear as a specific signature in the Raman-active modes of BWCNT systems.
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A molecular‐level computational study of the diffusion and solubility of water and oxygen in carbonaceous polyethylene nanocomposites
Edvin Erdtman,Martin Bohlén,Peter Ahlström,Thomas Gkourmpis,Mikael Berlin,Thorbjörn Andersson,Kim Bolton +6 more
TL;DR: In this paper, Monte Carlo and molecular dynamics simulations were performed to investigate the effect on the solubility, diffusion, and permeability of water and oxygen when adding graphene or single-walled carb.