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Based on detailed first-principles investigations of the hexagonal antidot patterned graphene nanomeshes, we have studied the mechanisms of the conducting property modification of graphene. The band-folding analysis shows that the (3n,3m) (n and m are integers) superlattice would have fourfold degeneracy at Г point. An effective method by removing this fourfold degeneracy, such as regularly arranging...
The interaction of alkali metals with polyfurfuryl alcohol (PFA) derived nanoporous carbon (PFA-NPC) leads to localized regions of crystallization within the carbon. This is interesting because PFA-derived carbon is well known to be non-graphitizing, meaning that it does not tend to crystallize even at very high temperature (>2500°C). However, it has been demonstrated that after an oxidation with...
Hydrogenated amorphous carbon (a-C:H) films were deposited on Si substrates by electrolysis in a methanol solution at ambient pressure and a low temperature (50°C), using various deposition voltages. The influence of deposition voltage on the microstructure of the resulting films was analyzed by visible Raman spectroscopy at 514.5nm and X-ray photoelectron spectroscopy (XPS). The contents of sp ...
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