▎ 摘　　要

NOVELTY - Graphene quantum dot pattern comprises graphene quantum dots uniformly patterned on a substrate through ion beam irradiation. The patterned graphene quantum dots have a particle size of 0.1-10 nm. USE - The graphene quantum dot pattern is useful for bio-imaging, contrast agent and drug carrier. ADVANTAGE - The graphene quantum dot pattern: has high biocompatibility with light-emitting characteristics in the visible range and has excellent thermal and electrical conductivity; controls the size constantly through bottom-up method; and does not use etchant, acid or harmful chemicals on the substrate; and is suitable in the field of pharmaceuticals. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for manufacturing the graphene quantum dot pattern, comprising (a) implanting a metal catalyst source into the substrate through selective ion beam irradiation, (b) heating the substrate on which the metal catalyst source is injected to form metal catalyst particles having particle size of 0.1-10 nm, and (c) removing the metal catalyst by providing gaseous carbon flow on the substrate on which the metal catalyst particles are formed, and patterning graphene quantum dots.