Wednesday, December 14, 2011

US Patent 8075864 - Preparing large area graphene sheets

This patent from Samsung teaches a way to manufacture graphene sheets having a wide area which may assist future mass production of high speed nanoelectronics. Claim 1 reads:

1. A process of preparing a graphene sheet, the process comprising:

forming a graphitizing catalyst in the form of a sheet;

forming a sheet of polymer on the graphitizing catalyst; and

heat-treating the polymer on the graphitizing catalyst in an inert or reductive atmosphere to form a graphene sheet,

wherein a width and a length of the graphene sheet are each about 1 millimeter or greater.