白光微腔有机电致发光器件的结构设计与制备

摘要

A white light microcavity organic light-emitting device ( WOLED) was fabricated and characterized. Design method of WOLED has been studied. This microcavity has two color matched cavity modes structure and a wide band green organic luminous material. Comparing with the normal structural OLED, EL efficiency of microcavity WOLED was improved by 0. 7 times. Optimized microcavity structure can lead to a color coordinator of (0. 34, 0. 33). The CIE of microcavity OLED was stable at different volatge. Further study should focus on multi mode cavity structure for optimizing color rendering index.%采用一种宽谱带绿光发光材料,通过两个颜色互补的谐振模式结构设计实现了白光发射的微腔OLED.与普通结构的OLED相比,器件的电致发光效率提高了0.7倍.优化后的白光微腔OLED的色坐标为(0.34,0.33),且颜色不随工作电压变化.进一步改善显色指数性能则需要构建多个模式的微腔结构.