US Patent 7988941 - Preparing graphene sheets
http://www.freepatentsonline.com/7988941.html
This patent from Samsung teaches a step forward in the large scale production of graphene films for applications as transparent electrodes and in flexible solar cells. Claim 1 reads:
1. A method of preparing a graphene sheet, the method comprising:
depositing a film consisting of a graphitizing catalyst;
wherein a width of the film is one millimeter or greater;
heat-treating a gaseous carbon source in the presence of the graphitizing catalyst to form graphene, while maintaining the shape of the film; and
cooling the graphene to form a graphene sheet, wherein a width and a length of the graphene sheet are each about 1 millimeter or greater.
This patent from Samsung teaches a step forward in the large scale production of graphene films for applications as transparent electrodes and in flexible solar cells. Claim 1 reads:
1. A method of preparing a graphene sheet, the method comprising:
depositing a film consisting of a graphitizing catalyst;
wherein a width of the film is one millimeter or greater;
heat-treating a gaseous carbon source in the presence of the graphitizing catalyst to form graphene, while maintaining the shape of the film; and
cooling the graphene to form a graphene sheet, wherein a width and a length of the graphene sheet are each about 1 millimeter or greater.
Labels: Samsung
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