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US 2012/0070641 A1Published application
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:
- disposing a graphitizing catalyst upon a substrate;
- disposing a polymer on the graphitizing catalyst;
- and
- heat-treating the polymer on the graphitizing catalyst to form a graphene sheet.
1 more element
A process of preparing a graphene sheet, the process comprising:
- disposing upon a silicon substrate a graphitizing catalyst upon a silicon substrate, the graphitizing catalyst being in intimate contact with the silicon substrate;
- disposing a polymer on the graphitizing catalyst;
- and
- heat-treating the polymer on the graphitizing catalyst to form a graphene sheet.
1 more element
A graphene sheet comprising:
- polycyclic aromatic molecules in which a plurality of carbon atoms are covalently bound to each other, wherein the graphene sheet has about 1 to about 300 layers and wherein the width and length of the graphene sheet are each about 1 mm or greater.
A graphene sheet prepared by a process, the process comprising:
- disposing a graphitizing catalyst upon a substrate;
- disposing a polymer on the graphitizing catalyst;
- and
- heat-treating the polymer on the graphitizing catalyst to form a graphene sheet.
- wherein a width and a length of the graphene sheet are each about 1 millimeter or greater.
2 more elements
Dependencies are inferred from the claim text.