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Volume 173, 2014
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Metal–semiconductor transition like behavior of naphthalene-doped single wall carbon nanotube bundles

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Abstract

Naphthalene (N) or naphthalene-derivative (ND) adsorption-treatment evidently varies the electrical conductivity of single wall carbon nanotube (SWCNT) bundles over a wide temperature range due to a charge–transfer interaction. The adsorption treatment of SWCNTs with dinitronaphthalene molecules enhances the electrical conductivity of the SWCNT bundles by 50 times. The temperature dependence of the electrical conductivity of N- or ND-adsorbed SWCNT bundles having a superlattice structure suggests metal–semiconductor transition like behavior near 260 K. The ND-adsorbed SWCNT gives a maximum in the logarithm of electrical conductivity vs. T−1 plot, which may occur after the change to a metallic state and be associated with a partial unravelling of the SWCNT bundle due to an evoked librational motion of the moieties of ND with elevation of the temperature.

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Publication details

The article was received on 30 May 2014, accepted on 27 Jun 2014, published on 04 Aug 2014 and first published online on 04 Aug 2014


Article type: Paper
DOI: 10.1039/C4FD00119B
Citation: Faraday Discuss., 2014,173, 145-156
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    Metal–semiconductor transition like behavior of naphthalene-doped single wall carbon nanotube bundles

    F. Khoerunnisa, A. Morelos-Gomez, H. Tanaka, T. Fujimori, D. Minami, R. Kukobat, T. Hayashi, S. Y. Hong, Y. C. Choi, M. Miyahara, M. Terrones, M. Endo and K. Kaneko, Faraday Discuss., 2014, 173, 145
    DOI: 10.1039/C4FD00119B

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