Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
80 (1996), S. 5404-5407
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
When the arc vaporization of carbon rods in a helium atmosphere is conducted in the presence of small amounts of pyrrole, not only does one form nitrogen-doped fullerenes, but also the surface of the carbon rods becomes coated with a layer of a nitrogen-doped carbon. X-ray diffraction indicates d spacing expansion, and x-ray photoelectron spectroscopy confirms that nitrogen doping has occurred at a level of 2.3%. N1s spectra reveal a nonuniformity in the distribution of nitrogen atoms relative to carbon. These data are consistent with a model in which substitution of nitrogen occurs at the domain boundaries of the graphitic particles. A consequence of this doping is a twofold increase in the electrical conductivity of the carbon. The x-ray photoemission results indicate that N incorporation induces a shift of the valence band toward the Fermi level. © 1996 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.363819
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