Special Section on Carbon Nanotubes

Raman intensities of the radial-breathing mode in carbon nanotubes: the exciton-phonon coupling as a function of (n1, n2)

[+] Author Affiliations
Hagen Telg, Christian Thomsen, Janina Maultzsch

Technische Universita¨t Berlin, Institut fu¨r Festko¨rperphysik, Hardenbergstr. 36, Berlin, 10623 Germany

J. Nanophoton. 4(1), 041660 (June 7, 2010). doi:10.1117/1.3457367
History: Received January 9, 2010; Revised May 26, 2010; Accepted May 27, 2010; June 7, 2010; Online June 07, 2010
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Abstract

We studied the Raman intensities of the radial breathing mode(RBM) in carbon nanotubes excited resonantly into the first and second optical transitions of semiconducting nanotubes and the first transition of metallic nanotubes. Several variations in the maximum Raman intensities of different (n1, n2) nanotubes are observed from which we discuss the dependence on the nanotube family ν, the chiral angle θ and the optical transition Eii. By comparison to theory we attribute variations with ν and θ to variations in the exciton-phonon coupling. Differences between different Eii are dominated by variations in the linewidth of the optical transitions.

© 2010 Society of Photo-Optical Instrumentation Engineers

Citation

Hagen Telg ; Christian Thomsen and Janina Maultzsch
"Raman intensities of the radial-breathing mode in carbon nanotubes: the exciton-phonon coupling as a function of (n1, n2)", J. Nanophoton. 4(1), 041660 (June 7, 2010). ; http://dx.doi.org/10.1117/1.3457367


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