▎ 摘　　要

NOVELTY - Size and shape of graphene quantum dots are detected through a high voltage transmission electron microscope, light emitting energy is produced based on size and shape of the graphene quantum dots, and relation between the size of the graphene quantum dots and the light emitting energy is analyzed. The shape ratio is obtained based on size and shape of graphene quantum dots, light absorption property is analyzed based on size of graphene quantum dots, and light absorption performance and light emitting energy are controlled by changing size and shape of the graphene quantum dots. USE - Method for controlling radiation and absorption characteristics by changing size and shape of graphene quantum dot (claimed). ADVANTAGE - The method enables controlling of radiation and absorption characteristics by changing size and shape of graphene quantum dot by a simple process. DETAILED DESCRIPTION - A graphene oxide sheet is produced by using graphite by using Hummers method, producing various sizes of graphene quantum dots by repeated oxidation, reduction and heating, producing quantum dots having a uniform size and shape, and analyzing relations of luminous energy and light absorbency characteristics based on size and shape of graphene quantum dot. The size and shape of graphene quantum dots are detected through a high voltage transmission electron microscope, light emitting energy is produced based on size and shape of the graphene quantum dots, and relation between the size of the graphene quantum dots and the light emitting energy is analyzed. The shape ratio is obtained based on size and shape of graphene quantum dots, light absorption property is analyzed based on size of graphene quantum dots, and light absorption performance and light emitting energy are controlled by changing size and shape of the graphene quantum dots.