Abstract
Increasing interest in graphene research in basic sciences and applications emphasizes theneed for an economical means of synthesizing it. We report a method for the synthesis ofgraphene on commercially available stainless steel foils using direct thermal chemical vapordeposition. Our method of synthesis and the use of relatively cheap precursors such as ethanol(CH3CH2OH) as a source of carbon and SS 304 as the substrate proved to be economically viable. Thepresence of single- and few-layer graphene was confirmed using confocal Ramanmicroscopy/spectroscopy. X-ray photoelectron spectroscopic measurements were furtherused to establish the influence of various elemental species present in stainless steel ongraphene growth. The role of cooling rate on surface migration of certain chemical species(oxides of Fe, Cr and Mn) that promote or hinder the growth of graphene is probed. Suchanalysis of the chemical species present on the surface can be promising for graphene basedcatalytic research.
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