Abstract
Sulfur doped graphite is obtained by arc vaporization of graphite rods in the presence of thiophenes. The surfaces of the carbon rods become coated with a layer of a sulfur-doped carbon. X-ray diffraction indicates a small d spacing expansion, and there is a slight decrease in the electrical conductivity of the doped layer. X-ray photoelectron spectroscopy confirms that sulfur incorporation has occurred at a level of 0.6% and that the sulfur atoms are in a neutral state. X-ray photoemission results indicate that S incorporation induces a shift of the valence band toward the Fermi level.
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