▎ 摘　　要

Graphene quantum dots (GQDs) are nanometer-sized fragments of graphene that show unique properties, which makes them interesting candidates for a whole range of new applications. This review article gives an overview of the synthesis, properties and applications of GQDs. Synthesis methods discussed include top-down and bottom-up approaches. Properties such as luminescence up- and down-conversion have been used in applications ranging from energy conversion to bio-analytics. This article provides an overview of the state-of-the-art and highlights promising findings as well as potential future directions of the research field.