First and second optical transitions in single-walled carbon nanotubes: a resonant Raman study

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Details zur Publikation

Autor(en): Telg H, Maultzsch J, Reich S, Thomsen C
Zeitschrift: physica status solidi (b)
Verlag: WILEY-V C H VERLAG GMBH
Jahr der Veröffentlichung: 2007
Band: 244
Heftnummer: 11
Seitenbereich: 4006-4010
ISSN: 0370-1972
eISSN: 1521-3951


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.



FAU-Autoren / FAU-Herausgeber

Maultzsch, Janina Prof. Dr.
Lehrstuhl für Experimentalphysik


Autor(en) der externen Einrichtung(en)
Freie Universität Berlin
Technische Universität Berlin


Zitierweisen

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://dx.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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Zuletzt aktualisiert 2018-19-09 um 15:53