An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode and containing an aromatic compound, wherein the aromatic compound includes a benzene ring, two unsubstituted carbazole groups directly bonded to the benzene ring, two substituted carbazole groups directly bonded to the benzene ring and each substituted with a nitrogen-containing ring group, and a substituent directly bonded to the benzene ring and selected from a cyano group, a fluorine, or a C1-C10 alkyl group substituted with a fluorine. The organic electroluminescence device may obtain good luminous efficiency and long life (long lifespan) characteristics while emitting blue light.
一种有机电致发光器件的实施例包括第一电极、第二电极和位于第一电极和第二电极之间并含有芳香族化合物的发光层,其中芳香族化合物包括苯环、两个直接连接到苯环的未取代的
咔唑基、两个直接连接到苯环且每个都被氮含环基取代的取代
咔唑基,以及直接连接到苯环并选择自
氰基、
氟或取代有
氟的C1-C10烷基的取代基。该有机电致发光器件可以在发射蓝光的同时获得良好的光效和长寿命特性。