基于TBP掺杂的蓝光有机电致发光器件  

Blue Organic Light-Emitting Device Based on Dopant TBP

作　　者：姚毅[1] 张方辉[1] 靳宝安[1] 蒋谦[1] 刘丁涵[1] 阎洪刚[1] 

机构地区：[1]陕西科技大学电气与信息工程学院,陕西西安710021

出　　处：《液晶与显示》2010年第3期375-378,共4页Chinese Journal of Liquid Crystals and Displays

基　　金：浙江省温州市科技计划项目(No.H20080004);陕西省"13115"显示器工程中心建设项目(No.20072DGC-07)

摘　　要：采用真空蒸镀法,制备了结构为ITO/2T-NATA(15nm)/NPB(25nm)/ADN:TBP(30nm,X)/Alq3(30nm)/LiF(1nm)/Al(100nm)的蓝光器件,X为TBP的掺杂浓度(质量分数),分别取0%,1%,2%,3%,4%,5%。实验结果表明:采用2T-NATA作为空穴注入层和掺杂TBP能够改善器件的发光亮度和发光效率,当TBP掺杂浓度为3%时,器件的效果最好,可获得稳定的蓝光器件,亮度最高达到5840cd/m2,比不掺杂TBP的亮度提高约0.7倍;7V时器件的最大电流效率为5.29cd/A,流明效率为21m/W,色坐标为(0.1529,0.2254)。A kind of blue OLED device with structure of ITO/2T-NATA（15 nm）/NPB（25 nm）/ADN：TBP（30 nm,X%） /Alq3 （30 nm）/LiF（1 nm）/Al（100 nm） was prepared via vacuum deposition process,here X varied from 0% to 5% with a step of 1%.The results showed that 2T-NATA function as the hole injection layer and dopant TBP can improve the luminance and efficiency,the 3% doped device exhibits a best performance including a maximum luminance of 5 840 cd/m2 that was about 0.7 times than that of device without TBP;a maximum current efficiency of 5.29 cd/A,a luminance efficiency is 2 lm/W and CIE coordinates reach （0.152 9,0.225 4） at 7 V.

关 键 词：TBP 掺杂 蓝光 2T-NATA OLED 

分 类 号：TN383.1[电子电信—物理电子学]