First and second optical transitions in single-walled carbon nanotubes: a resonant Raman study
Telg H, Maultzsch J, Reich S, Thomsen C (2007)
Publication Status: Published
Publication Type: Journal article
Publication year: 2007
Journal
Publisher: WILEY-V C H VERLAG GMBH
Book Volume: 244
Pages Range: 4006-4010
Journal Issue: 11
Abstract
Resonant Raman spectroscopy was performed to study electron-phonon coupling in single-walled carbon nanotubes separated in solution. By varying the excitation energy from 1.26 eV to 1.93 eV we obtained radial breathing mode resonance profiles of the first and second optical transitions E, and E2, of the (9, 1) and (8,3) tubes. We observe up to 16 times stronger Raman intensities for the E, transitions which can mostly be attributed to a two times broader linewidth of the E-22 transition. Comparison of the matrix element ratio M-11/M-22 to theoretical predictions on the electron-phonon coupling show a deviation of a factor 1.7 which might-be associated with the change of the exciton-photon matrix element. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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APA:
Telg, H., Maultzsch, J., Reich, S., & Thomsen, C. (2007). First and second optical transitions in single-walled carbon nanotubes: a resonant Raman study. physica status solidi (b), 244(11), 4006-4010. https://doi.org/10.1002/pssb.200776141
MLA:
Telg, Hagen, et al. "First and second optical transitions in single-walled carbon nanotubes: a resonant Raman study." physica status solidi (b) 244.11 (2007): 4006-4010.
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