带负折射介质层的MOLED传输特性的模拟研究  

Transmission Characteristics of MOLED Containing Negative Refractive Index Dielectric Layer

作　　者：张剑华[1] 刘琼[2] 李宏建[2] 

机构地区：[1]湘南学院物理与电子信息工程系,湖南郴州423000 [2]中南大学物理科学与技术学院,长沙410083

出　　处：《半导体光电》2010年第6期849-853,共5页Semiconductor Optoelectronics

基　　金：湖南省教育厅科研项目(090920);湖南省自然科学基金项目(06JJ20034)

摘　　要：分析了由正负折射率介质交替构成的分布式布拉格反射镜(DBR)的复有效折射率及其色散关系,并将其与由折射率不同的正折射率介质交替构成的DBR进行了比较;研究了由这种DBR和金属做反射镜的微腔有机发光器件(MOLED)的光学传输特性,发现这种器件具有很好的滤波功能且可使器件薄化;讨论了这种MOLED的谐振波长和归一化电致发光(EL)谱随观测角的变化关系。这些工作为进一步提高微腔OLED的发光色纯度、减小其腔长提供了新方法。The relationship between complex effective refractive index and dispersive properties of two kinds of distributed Bragg reflectors （DBR） were analyzed in this paper. Both DBRs are composed of two alternately arranged dielectrics with two positive refractive indices or with positive and negative refractive indices. The optical transmission properties of the MOLED using DBR and metal as the reflecting mirror were investigated and it is found that this kind of device puts up better sieve-wave function and the thickness of the device can be reduced. The resonance wavelengths and normalized electroluminescence（EL） spectra versus the observation angle was discussed.

关 键 词：负折射材料 复有效折射率 分布式布拉格反射镜 EL谱 

分 类 号：TN312.8[电子电信—物理电子学]