▎ 摘　　要

NOVELTY - The method for preparing graphene involves growing graphene on insulating substrate or metal. Optical photo-etching is carried out on the insulating substrate, and the electrode material is deposited on the insulating substrate. The graphene is formed in the shape of active region, and dipping device using chlorobenzene is obtained. USE - Method for preparing graphene. ADVANTAGE - The processing efficiency can be improved, and excellent performance can be achieved. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the graphene manufacturing device. Graphene channel (1) Electrode (2)