Sulfur doped Reduced Graphene Oxide preparing method and the electromagnetic wave shielding material using the same and preparing method thereof

摘要

One embodiment of the present invention is a method for producing a semiconductor device, comprising: preparing a first solution by adding graphite powder to an acidic solution; Stirring and reacting the first solution to obtain graphene oxide; Mixing the graphene oxide with a sulfur compound to prepare a second solution; Heat treating the second solution; And a step of cooling the heat-treated second solution to obtain reduced graphene oxide doped with a sulfur element, and a method for producing a reduced graphene oxide doped with a sulfur element and a sulfur element The present invention also provides a method for producing a polymer composite comprising the reduced graphene oxide sheet doped with a sulfur element and a grafted oxide doped with the sulfur element produced therefrom, and a sheet and a polymer composite using the same.