采用掺杂和非掺杂方法制备了一种多层白色有机电致发光器件。DPVBi为蓝光发光层,将红光[Ir(piq)2(acac)]磷光掺杂染料掺入到母体BAlq中作为红光发光层,荧光材料QAD以亚单层的方式插入Alq3中作为绿光发光层,通过改变亚单层的厚度,得到了高效率的有机发光器件,此器件的最大电流效率可达6.1cd/A,最大功率效率达3.1lm/W,最大亮度达25 300cd/m2,当电压从4V变化到14V时,色坐标从(0.45,0.55)变化到(0.47,0.37),处于黄白光区。此器件的特点在于器件的性能可以通过简单地调整QAD的厚度进行控制,避免了使用多掺杂层工艺的复杂性。 A multilayered white organic electroluminescent device was prepared by doping and non-doping methods. DPVBi is a blue light emitting layer, a red [Ir (piq) 2 (acac)] phosphorescent doping dye is incorporated into the matrix BAlq as a red light emitting layer, and a fluorescent material QAD is inserted into Alq3 as a submonolayer as green light By changing the thickness of the sub-monolayer, a highly efficient organic light-emitting device was obtained. The maximum current efficiency of the device was 6.1 cd / A, the maximum power efficiency was 3.1 lm / W, the maximum brightness was 25 300 cd / When the voltage changes from 4V to 14V, the color coordinates change from (0.45,0.55) to (0.47,0.37), in the yellow-white region. The unique feature of this device is that device performance can be controlled by simply adjusting the thickness of the QAD, avoiding the complexities of using multiple doped layers.