Photoconductivity in Semiconducting Single-Walled Carbon Nanotubes

We have observed the photoconductive response of film samples of single-walled carbon nanotubes for the first time. Two peaks in the photoconductivity excitation spectra around 0.7 and 1.2 eV are observed at room temperature, which can be interpreted as a photocurrent in semiconducting nanotubes. At...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2001-11, Vol.40 (11B), p.L1229
Main Authors: Fujiwara, Akihiko, Matsuoka, Yasuyuki, Suematsu, Hiroyoshi, Ogawa, Naoki, Miyano, Kenjiro, Kataura, Hiromichi, Maniwa, Yutaka, Suzuki, Shinzo, Achiba, Yohji
Format: Article
Language:English
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Summary:We have observed the photoconductive response of film samples of single-walled carbon nanotubes for the first time. Two peaks in the photoconductivity excitation spectra around 0.7 and 1.2 eV are observed at room temperature, which can be interpreted as a photocurrent in semiconducting nanotubes. At a low temperature, we found a marked change in the intensity of the spectrum. In this paper, we discuss this temperature dependence and the mechanism of photoconductivity.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.40.L1229