Observation of excitonic effects in metallic single-walled carbon nanotubes

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): May P, Telg H, Zhong G, Robertson J, Thomsen C, Maultzsch J
Zeitschrift: Physical Review B
Verlag: AMER PHYSICAL SOC
Jahr der Veröffentlichung: 2010
Band: 82
Heftnummer: 19
ISSN: 1098-0121


Abstract


Excitonic effects of metallic single-walled carbon nanotubes are measured with temperature-dependent resonant Raman spectroscopy. By changing the temperature in the range of 300-870 K, we observe variations in the optical transition energy E(ii) as well as in the maximum Raman intensity. We find both dependences to be different for semiconducting and metallic single-walled carbon nanotubes. We suggest an interpretation in terms of excitons dissociated into free electron-hole pairs at temperatures related to the exciton binding energy. We furthermore discuss how the oscillator strength is influenced by temperature.



FAU-Autoren / FAU-Herausgeber

Maultzsch, Janina Prof. Dr.
Lehrstuhl für Experimentalphysik


Autor(en) der externen Einrichtung(en)
Technische Universität Berlin
University of Cambridge


Zitierweisen

APA:
May, P., Telg, H., Zhong, G., Robertson, J., Thomsen, C., & Maultzsch, J. (2010). Observation of excitonic effects in metallic single-walled carbon nanotubes. Physical Review B, 82(19). https://dx.doi.org/10.1103/PhysRevB.82.195412

MLA:
May, Patrick, et al. "Observation of excitonic effects in metallic single-walled carbon nanotubes." Physical Review B 82.19 (2010).

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Zuletzt aktualisiert 2018-08-08 um 10:38