以典型蓝色发光材料—联苯乙烯衍生物(4,4′-bis(2,2′-diphenylvinyl)-1,1′-biphenyl,DPVBi)为发光层,采用MoO3为阳极缓冲层制备了结构简单的非掺杂型蓝色有机电致发光器件,得到了低压启动,效率、亮度和色度俱佳的蓝色发光器件。器件启亮电压为3.4V,最高外量子效率为3.2%,最高亮度达到15 840cd/m2,器件色坐标为(0.15,0.15)。高性能器件的获得归因于MoO3缓冲层的插入在阳极/有机层间形成了良好的欧姆接触。 With the typical blue luminescent material 4,4’-bis (2,2’-bis (2,2’-diphenylvinyl) -1,1’-biphenyl, DPVBi) as the light-emitting layer, a structure was prepared by using MoO3 as an anode buffer layer Simple non-doped blue organic electroluminescent device, get a low voltage start, efficiency, brightness and color of the superb blue light-emitting devices. The device has a turn-on voltage of 3.4V, a maximum external quantum efficiency of 3.2%, a maximum brightness of 15 840 cd / m2 and a device color coordinate of (0.15, 0.15). The high-performance devices are obtained due to the insertion of the MoO3 buffer layer forming a good ohmic contact between the anode / organic layers.