Abstract
The electrophysical properties of powder samples of graphite and C60 fullerene have been studied in vacuum, oxygen ambient, and air. Room-temperature conduction of the samples has a percolative character. An increase of temperature brings about an increase of sample conductivity caused by oxygen desorption from the bulk. A peak-shaped feature not observed before has been found in the temperature behavior of the resistance of finely dispersed C60 and graphite powder samples in the T=310–340 K interval. Oxygen atoms were found to be involved in charge transport in powder samples of graphite and C60 fullerene through their electrical activity on the surface of grains differing in size.
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Fiz. Tverd. Tela (St. Petersburg) 39, 1703–1705 (September 1997)
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Masterov, V.F., Prikhod’ko, A.V., Nemchuk, N.I. et al. Effect of oxygen on the electrophysical properties of some carbon allotropes (graphite and C60 fullerene). Phys. Solid State 39, 1522–1524 (1997). https://doi.org/10.1134/1.1130111
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DOI: https://doi.org/10.1134/1.1130111