TY - JOUR
T1 - Finite length effects in DNA-wrapped carbon nanotubes
AU - Chou, S. G.
AU - Son, H.
AU - Zheng, M.
AU - Saito, R.
AU - Jorio, A.
AU - Dresselhaus, G.
AU - Dresselhaus, M. S.
N1 - Funding Information:
MIT authors acknowledge support from NSF grant DMR04-05538 and the Intel Higher Education Program. The work was carried out using the Raman facility in the Spectroscopy Laboratory supported by NSF-CHE 0111370 and NIH-RR02594 Grants. A.J. acknowledges CNPq and the Rede Nacional de Pesquisa em Nanotubes de Carbono, Brazil. R.S. acknowledges a Grant-in-aid (No. 16076201) from Ministry of Education, Japan.
PY - 2007/8/6
Y1 - 2007/8/6
N2 - Resonance Raman studies have been carried out on length-sorted single walled carbon nanotubes (SWNTs). For nanotubes much shorter than the wavelength of light, a large increase in Raman intensity is observed for several features in the intermediate frequency mode (IFM) region. The changes in IFM intensities are found to be highly dependent on the laser excitation energies, the (n, m) indices, and the specific Raman features. A direct correlation is found between the amount of IFM intensity increase as a function of the average nanotube length, as well as the symmetry of the physical origin for the specific IFM feature.
AB - Resonance Raman studies have been carried out on length-sorted single walled carbon nanotubes (SWNTs). For nanotubes much shorter than the wavelength of light, a large increase in Raman intensity is observed for several features in the intermediate frequency mode (IFM) region. The changes in IFM intensities are found to be highly dependent on the laser excitation energies, the (n, m) indices, and the specific Raman features. A direct correlation is found between the amount of IFM intensity increase as a function of the average nanotube length, as well as the symmetry of the physical origin for the specific IFM feature.
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U2 - 10.1016/j.cplett.2007.06.091
DO - 10.1016/j.cplett.2007.06.091
M3 - Article
AN - SCOPUS:34447630259
VL - 443
SP - 328
EP - 332
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 4-6
ER -