Chiral Index Dependence of the G(+) and G(-) Raman Modes in Semiconducting Carbon Nanotubes
Telg H, Duque JG, Staiger M, Tu X, Hennrich F, Kappes MM, Zheng M, Maultzsch J, Thomsen C, Doorn SK (2012)
Publication Status: Published
Publication Type: Journal article
Publication year: 2012
Journal
Publisher: AMER CHEMICAL SOC
Book Volume: 6
Pages Range: 904-911
Journal Issue: 1
DOI: 10.1021/nn2044356
Abstract
Raman spectroscopy on the radial breathing mode Is a common tool to determine the diameter d or chiral indices (n,m) of single-wall carbon nanotubes. In this work we present an alternative technique to determine d and (n,m) based on the high-energy G(-) mode. From resonant Raman scattering experiments on 14 highly purified single chirality (n,m) samples we obtain the diameter, chiral angle, and family dependence of the G(-) and G(+) peak position. Considering theoretical predictions we discuss the origin of these dependences with respect to rehybridization of the carbon orbitals, confinement, and electron-electron interactions. The relative Raman intensities of the two peaks have a systematic chiral angle dependence in agreement with theories considering the symmetry of nanotubes and the associated phonons.
Authors with CRIS profile
Involved external institutions
Los Alamos National Laboratory
United States (USA) (US)
National Institute of Standards and Technology (NIST)
United States (USA) (US)
Karlsruhe Institute of Technology (KIT)
Germany (DE)
Technische Universität Berlin
Germany (DE)
United States (USA) (US)
National Institute of Standards and Technology (NIST)
United States (USA) (US)
Karlsruhe Institute of Technology (KIT)
Germany (DE)
Technische Universität Berlin
Germany (DE)
How to cite
APA:
Telg, H., Duque, J.G., Staiger, M., Tu, X., Hennrich, F., Kappes, M.M.,... Doorn, S.K. (2012). Chiral Index Dependence of the G(+) and G(-) Raman Modes in Semiconducting Carbon Nanotubes. Acs Nano, 6(1), 904-911. https://dx.doi.org/10.1021/nn2044356
MLA:
Telg, Hagen, et al. "Chiral Index Dependence of the G(+) and G(-) Raman Modes in Semiconducting Carbon Nanotubes." Acs Nano 6.1 (2012): 904-911.
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