High brightness and efficiency yellow-emitting organic electroluminescent device

被引：10

作者：

Huang, JS ^{[1
]}

Xie, ZY ^{[1
]}

Yang, KX ^{[1
]}

Li, CN ^{[1
]}

Hou, JY ^{[1
]}

Liu, SY ^{[1
]}

机构：

[1] Jilin Univ, Natl Lab Integrated Optoelect, Changchun 130023, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 1999年 / 16卷 / 03期

关键词：

D O I：

10.1088/0256-307X/16/3/025

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Yellow-light-emitting organic electroluminescent device with multilayer thin-film structure, which shows high brightness and efficiency, is constructed. The hole-transport layer is an N,N'-bis(3-methyphenyl)-N,N'-diphenylbenzidine film. The electron-transport layer is an 8-(quinolinolate)-aluminum(Alq) film. The luminescent layer consists of a hose material Alq and an emitting dopant 5,6,11,12-petraphenylnaphthacene. The doped device exhibited the maximum emission 40000 cd/m(2) at 19 V, and the maximum efficiency of 3.14 lm/W, which have been improved by about six and three times, respectively, in comparison with that in undoped device. For the unpackaged device, a luminance half-life on the order of about 230 h has been achieved,vith a constant current density of 15 mA/cm(2), starting at 500 cd/m(2) at the room temperature under ambient atmosphere.

引用

页码：226 / 228

页数：3