| 초록 |
Graphene is a 2D material with atomic thickness and possesses unusual thermal, electrical, and mechanical properties. Most of current research has been focused on synthesis of graphene and applications to enhance electrical and mechanical properties. However, graphene quantum dots (GQDs), simply making graphene typically under 10 nm, and the change of emission behavior from known fluorescents on graphene draws huge interest for potential applications to display, lighting, and optoelectronic devices. Here, we demonstrate the first GQD light-emitting diodes (GQD-LEDs) in which GQDs are incorporated into polymeric host layers in a multilayer electroluminescent (EL) device that irradiates blue (~400 nm) emission exceeding 1,000 cd/m2. The GQD-LEDs are possible because our novel and simple intercalation method creates high-quality GQDs with minimal, or controlled, oxidation. |
