▎ 摘　　要

NOVELTY - Production of graphene quantum dots involves thermally decomposing silicon carbide substrate in a reduced pressure atmosphere in which a mixed gas containing hydrogen is supplied. USE - Production of graphene quantum dots e.g. hydrogen-terminated graphene quantum dot used in electronic device (all claimed). Uses include but are not limited to bio-imaging, bio-sensing, photovoltaic cells, drug delivery, and optoelectronic devices. ADVANTAGE - The method manufactures graphene quantum dots with low toxicity, high crystallinity, few defects and high purity, by an easy method of controlling an atmosphere when silicon carbide is thermally decomposed, and does not use harmful chemicals. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for graphene quantum dots.