Radial breathing mode of single-walled carbon nanotubes: Optical transition energies and chiral-index assignment

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Maultzsch J, Telg H, Reich S, Thomsen C
Zeitschrift: Physical Review B
Verlag: AMER PHYSICAL SOC
Jahr der Veröffentlichung: 2005
Band: 72
Heftnummer: 20
ISSN: 2469-9950


Abstract


We present a comprehensive study of the chiral-index assignment of carbon nanotubes in aqueous suspensions by resonant Raman scattering of the radial breathing mode. We determine the energies of the first optical transition in metallic tubes and of the second optical transition in semiconducting tubes for more than 50 chiral indices. The assignment is unique and does not depend on empirical parameters. The systematics of the so-called branches in the Kataura plot are discussed; many properties of the tubes are similar for members of the same branch. We show how the radial breathing modes observed in a single Raman spectrum can be easily assigned based on these systematics. In addition, empirical fits provide the energies and radial breathing modes for all metallic and semiconducting nanotubes with diameters between 0.6 and 1.5 nm. We discuss the relation between the frequency of the radial breathing mode and tube diameter. Finally, from the Raman intensities we obtain information on the electron-phonon coupling.



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:
Maultzsch, J., Telg, H., Reich, S., & Thomsen, C. (2005). Radial breathing mode of single-walled carbon nanotubes: Optical transition energies and chiral-index assignment. Physical Review B, 72(20). https://dx.doi.org/10.1103/PhysRevB.72.205438

MLA:
Maultzsch, Janina, et al. "Radial breathing mode of single-walled carbon nanotubes: Optical transition energies and chiral-index assignment." Physical Review B 72.20 (2005).

BibTeX: 

Zuletzt aktualisiert 2018-11-08 um 02:56