Observation of excitonic effects in metallic single-walled carbon nanotubes

May P, Telg H, Zhong G, Robertson J, Thomsen C, Maultzsch J (2010)

Publication Status: Published

Publication Type: Journal article

Publication year: 2010

Journal

Physical Review B American Physical Society

Publisher: AMER PHYSICAL SOC

Book Volume: 82

Journal Issue: 19

DOI: 10.1103/PhysRevB.82.195412

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.

Authors with CRIS profile

Janina Maultzsch Lehrstuhl für Experimentalphysik

Involved external institutions

Technische Universität Berlin DE Germany (DE) University of Cambridge GB United Kingdom (GB)

How to cite

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).

BibTeX: Download