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Proceedings Paper

Femtosecond investigation of carbon nanotubes
Author(s): Christophe Voisin; Jean-Sebastien Lauret; Guillaume Cassabois; Philippe Roussignol; Claude Delalande
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Paper Abstract

Time-resolved spectroscopy is performed in bulk samples of single wall carbon nanotubes. The carrier dynamics is monitored by probing the transient change of transmission of the sample in resonance with the interband transitions of the semiconducting tubes. Samples containing either isolated nanotubes or bundles of nanotubes are investigated. A strong increase of the relaxation time is observed for isolated nanotubes. We interpret this effect with a model based on a tunnel coupling between semiconducting and metallic nanotubes within a bundle. This model also accounts for the quenching of the luminescence in such samples.

Paper Details

Date Published: 16 June 2004
PDF: 7 pages
Proc. SPIE 5352, Ultrafast Phenomena in Semiconductors and Nanostructure Materials VIII, (16 June 2004); doi: 10.1117/12.525390
Show Author Affiliations
Christophe Voisin, LPA, Ecole Normale Superieure (France)
Jean-Sebastien Lauret, LPA, Ecole Normale Superieure (France)
Motorola (France)
Guillaume Cassabois, LPA, Ecole Normale Superieure (France)
Philippe Roussignol, LPA, Ecole Normale Superieure (France)
Claude Delalande, LPA, Ecole Normale Superieure (France)

Published in SPIE Proceedings Vol. 5352:
Ultrafast Phenomena in Semiconductors and Nanostructure Materials VIII
Kong-Thon Tsen; Jin-Joo Song; Hongxing Jiang, Editor(s)

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