Effect of electron irradiation on the electrical properties of fibers of aligned single-walled carbon nanotubes

We carried out in situ resistivity measurements on macroscopic oriented ropes of single wall carbon nanotubes in a transmission electron microscope. We have found a minimum in the resistivity as a function of irradiation dose. This minimum is interpreted as a result of a twofold effect of the irradi...

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Bibliographic Details
Published in:Applied physics letters 2003-12, Vol.83 (22), p.4622-4624
Main Authors: Mikó, Cs, Milas, M., Seo, J. W., Couteau, E., Barišić, N., Gaál, R., Forró, L.
Format: Article
Language:English
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Summary:We carried out in situ resistivity measurements on macroscopic oriented ropes of single wall carbon nanotubes in a transmission electron microscope. We have found a minimum in the resistivity as a function of irradiation dose. This minimum is interpreted as a result of a twofold effect of the irradiation: the domination of covalent bond formation between tubes in a bundle due to broken bonds in the tube walls and the amorphization of the sample at high dose. Despite this improvement, the temperature dependence of the resistivity remains hopping-like.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1631060