engleski

Effect of irradiation on aligned carbon nanotube fibers

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.

Electron and positron effects; Low-field transport and mobility; piezoresistance (semiconductors/insulators).

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