A study on blue light-emitting devices based on novel pyrazole compound

被引：0
|
作者：
Wang, Yuanmin [1 ]
Teng, Feng [1 ]
Xu, Zheng [1 ]
Hou, Yanbing [1 ]
Xu, Xurong [1 ]
Ma, Changqi [1 ]
Zhang, Baowen [1 ]
Cao, Yi [1 ]
机构：
[1] Beijing Jiaotong Univ, Inst Optoelect Technol, Beijing 100044, Peoples R China
来源：
ASID'04: Proceedings of the 8th Asian Symposium on Information Display | 2004年
关键词：
OLEDs; blue light emission; pyrazole compound;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Many pyrazole compounds, have been proved to be excellent blue light-emitting material and good hole-transporting material. DSC and AFM analysis demonstrate that 1,3-diphenyl-5 -(9-phenanthryl) -4,5 -di hydro-1-H -pyrazole (DPPhP) has a high Tg of about 96 degrees C and good film forming ability. In this work, we have fabricated several devices with structure of ITO/PVK:DPPhP(5%)/PBD(xmn)/AlQ(5mu)/LiF(0.3nm)/ Al, PBD used as hole-blocking layer and AlQ used as electron-transporting layer. And pure blue light emission devices have been obtained. In device ITO/PVK: DPPhP (5%)/PBD(10mn)/AlQ(5nm)/LiF(0.3nm)/Al , CIE coor-dinates is (0.158, 0.150) at l6v, which is very close to (0.15, 0.15).
引用
收藏
页码：482 / 484
页数：3
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