双主体掺杂红色有机电致发光显示器件的研究  

Red Organic Light-emitting Diodes with Co-host System

作　　者：胡忠 徐洪光 庄筱磊 张积梅 周刚 余峰 黄浩 

机构地区：[1]上海永新彩色显像管股份有限公司技术开发中心,上海200237 [2]上海广电电子股份有限公司平板显示技术研究开发中心,上海200081

出　　处：《液晶与显示》2007年第1期65-68,共4页Chinese Journal of Liquid Crystals and Displays

基　　金：上海市青年科技启明星计划(B类)(No.06QB14051)

摘　　要：利用三源共蒸发技术制作了双主体掺杂红色有机电致发光显示器件,研究了不同掺杂比例下,Alq3∶Rubrene∶DCJTB双主体掺杂系统的红色OLED器件,器件结构为ITO/HIL/NPB/Alq3∶Rubrene∶DCJTB/Alq3/LiF/Al,其中发光层Alq3∶Rubren∶DCJTB是三掺杂发光结构体系。综合研究分析了Alq3与Rubrene的掺杂比例和发光效率、色纯度之间的关系,当Rubrene的掺杂比例达到60%时,器件达到最佳效果;电压9V时,该器件发光亮度达到3580cd/m2,发光效率达到4.58cd/A,功率效率也达到1.60lm/W,相应的色坐标为(0.65,0.35)。High efficient red organic light-emitting diodes （OLED） based on the fluorescent dye DCJTB doped in a co-host system of Rubrene and Alq3 were fabricated using three-source co-deposition. It is observed that the performance of OLEDs with a co-host system rubrene： Alq3 were strongly dependent on the ratio of co-host Rubrene＂ Alq3. A saturated red OLED with CIE coordinates of （0.65,0.35） at 3 580 cd/m^2 was realized at the Rubrene concentration 60 % in the co-host system. The maximum luminescent efficiency and power efficiency of this co-host system were 4. 58cd/A and 1. 60 lm/W, respectively.

关 键 词：有机电致发光显示器件 发光效率 双主体掺杂 红光 

分 类 号：TN141[电子电信—物理电子学]