利用Al/MoO_3作为全反射阳极、Al/LiF作为半透明阴极制备了高性能的Alq_3基顶发射有机发光器件。研究了在金属阴极表面分别生长高折射率的材料Alq_3和MoO_3作为出光耦合层后,对器件性能的影响。经过优化后的器件,其电流效率最大值达到6.43cd/A,并且微腔器件的角度依赖问题也基本得到了解决。这些结果将为制备高性能的顶发射器件提供了新的设计思路。 High performance Alq_3-based top emission organic light-emitting devices were prepared using Al / MoO_3 as the total reflection anode and Al / LiF as the translucent cathode. The effects of Alq_3 and MoO_3, which have high refractive index on the surface of the metal cathode, respectively, were investigated. The optimized device, the maximum current efficiency of 6.43cd / A, and the angle dependence of the micro-cavity devices have basically been resolved. These results will provide new design ideas for preparing high-performance top-emitting devices.