Raman Spectra of Graphene Synthesized by Chemical Vapor Deposition from Decane

Raman spectroscopy was used to study the structural properties of graphene synthesized by chemical vapor deposition using decane (C 10 H 22 ) as a precursor at various hydrogen concentrations. Reduction of the carrier gas flow rate from 150 cm 3 /min to zero changes the average spacing between the defects from 53 to 212 nm and the average grain size from 87 to 798 nm and changes the uniformity and continuity of the graphene layer. The obtained relationships can be used to control the defectiveness, homogeneity, and continuity of the graphene layer of the coating during synthesis by this method.