▎ 摘　　要

NOVELTY - Soluble graphene quantum dot comprises an anthracenyl N-alkyl maleimide functional group at an edge. USE - Soluble graphene quantum dot used in light-emitting material and organic light-emitting device (all claimed). ADVANTAGE - The soluble graphene quantum dot has improved solubility and improved emission characteristics, and good luminescence efficiency even in a solution state. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an organic light-emitting device, which comprises a first electrode, a second electrode, and an organic layer including an emission layer between the first electrode and the second electrode, where the organic layer includes the soluble graphene quantum dot.