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Photocurrents in Carbon Nanotubes with Various Diameters under High-Intensity Laser Irradiation

Source: Jpn. J. Appl. Phys. 49, 02BD06 (2010); doi:10.1143/JJAP.49.02BD06

Issue Date: 8 March 2010

PUBLICATION DATA
ISSN:
1553-9644 (online)
Publisher:
AIP is a member of CrossRef JSAP
Satoru Konabe
Department of Physics, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
Research Institute for Science and Technology, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan

Takahiro Yamamoto
Department of Materials Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan

Kazuyuki Watanabe
Department of Physics, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
Research Institute for Science and Technology, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
The photocurrents of carbon nanotubes (CNTs) under high-intensity laser irradiation are studied theoretically. Photocurrents of $E_{11}$ excitons dissociated by the Auger recombination process are calculated for zigzag CNTs with various diameters. The photocurrents due to dissociated excitons emerge at the threshold laser-intensity and the threshold decreases as the CNT diameters increase. Furthermore, the photocurrents become larger for larger diameter CNTs. ©2010

(As supplied by publisher.)

Permalink: http://dx.doi.org/10.1143/JJAP.49.02BD06
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