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US 8,075,864 B2Granted
Graphene sheet and process of preparing the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJae-young Choi, Hyeon-Jin Shin, Seon-mi Yoon
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Abstract
Provided are a graphene sheet and a process of preparing the same. Particularly, a process of economically preparing a large-area graphene sheet having a desired thickness and a graphene sheet prepared by the process are provided.
Claims20
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.
1 more element
Dependencies are inferred from the claim text.