METHOD FOR PREPARING PATTERNED GRAPHENE

The present disclosure provides a method for preparing patterned graphene, and the method includes using a silicon carbide base as a solid-state carbon source, decomposing the silicon carbide under the action of high temperature and catalyst, to directly grow graphene on an insulating substrate. Through a first patterned trench and a second patterned trench in an accommodating passage, the pattern of the formed graphene can be directly controlled. Therefore, the present disclosure can accurately locate the position of the patterned graphene on the insulating substrate, it does not require transferring the graphene one more time, thereby avoiding contaminating the graphene and damaging its structure, and there is no need for photo-lithography, ion etching and other processes to treat the graphene in order to obtain patterned graphene, which further avoids damages to the graphene.