发光层混合掺杂的白光OLED器件  

White Organic Light-Emitting Diodes Based on Mixed Doping Emitting Layer

作　　者：马颖[1] 韩薇[2] 张方辉[1] 袁桃利[1] 刘丁涵[1] 蒋谦[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 [2]西安电力电子技术研究所,陕西西安710061

出　　处：《液晶与显示》2011年第1期40-43,共4页Chinese Journal of Liquid Crystals and Displays

基　　金：陕西省13115显示器工程中心建设项目(No.20072DGC-07);浙江省温州市科技计划项目(No.H20080004);陕西科技大学自然科学基金(No.ZX09-31)

摘　　要：制备了白光OLED器件,器件结构为:ITO/2T-NATA(15nm)/NPB(25nm)/ADN:TBPe[(20-x)]nm、ADN:TBPe:DCJTB(xnm)/Alq3(20nm)/LiF(1nm)/Al(100nm)。研究了ADN:TBPE:DCJTB层厚度从0～8nm变化时对器件发光的影响。实验结果表明,当ADN:TBPE:DCJTB层厚度为0时,器件发蓝光;随着ADN:TBPE:DCJTB层厚度的增加,器件发光的色坐标从蓝光区进入白光区,在ADN:TBPE:DCJTB层厚度为6～8nm时得到色坐标较好的白光器件。A white organic light-emitting device was realized by using TBPe and DCJTB as fluorescent dopant.The configuration of the devices is ITO/2T-NATA（15 nm）/NPB（25 nm）/ADN∶TBPe[（20-x） nm],ADN∶TBPe∶DCJTB（x nm）/Alq3（20 nm）/LiF（1 nm）/Al（100 nm）,and the ADN∶TBPe/ADN∶TBPe∶DCJTB layer are used as emitting layer.The emission properties of devices by adjusting the thickness of ADN∶TBPe∶DCJTB layer has been researched.The results show that when the thickness of the ADN∶TBPe∶DCJTB layer gradually ranges from 2 nm to 8 nm,the electroluminescence spectra shift from blue-light region to white-light region.A white light with CIE coordinates of（0.38,0.34） was achieved when the ADN∶TBPe∶DCJTB layer was 8 nm,which is located in the white-light region.

关 键 词：有机电致发光 白光 掺杂 

分 类 号：TN383.1[电子电信—物理电子学]