Patent ID: 11866336
Assignee: UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A method of producing a reduced graphene oxide, the method comprising:
arranging a carbon material;
arranging a substrate adjacent to the arranged carbon material;
heating the arranged carbon material to a temperature of about 600° C. or higher; and
depositing the heated carbon material on the substrate to form a reduced graphene oxide thin film,
wherein the arranged carbon material is solid seedlac,
wherein the solid seedlac is in a form of a powder,
wherein the solid seedlac and the substrate are arranged in a heating chamber of which an internal temperature is controllable,
wherein the substrate is arranged in a space within about 1 m around the solid seedlac,
wherein the internal pressure of the heating chamber is about 1×10−1 torr or lower, and
wherein a carbon content of the reduced graphene oxide produced by the method is in a range of about 90% or higher.