Highly efficient white organic electroluminescent devices based on tandem architecture

被引：163

作者：

Chang, CC ^{[1
]}

Chen, JF

Hwang, SW

Chen, CH

机构：

[1] Natl Chiao Tung Univ, Dept Electrophys, Hsinchu, Taiwan

[2] Natl Chiao Tung Univ, MIRC, Display Inst, Hsinchu, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 25期

关键词：

D O I：

10.1063/1.2147730

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Two types of tandem organic light-emitting diodes (OLEDs) with white-light emission have been developed by using Mg:Alq(3)/WO3 as the interconnecting layer. While the Commission Internationale d'Eclairage (CIE) coordinates of the tandem device with individual blue- and yellow-emitting OLEDs was sensitive to the viewing angle and the operating time, the tandem device connecting two white-emitting OLEDs was considerably less. At an optimal WO3 thickness of 5 nm, the tandem two-unit device produced three higher luminance efficiency than that expected of a single-unit device. A maximum efficiency of 22 cd/A was achieved by the tandem device comprised of two white-fluorescent OLEDs, and the projected half-life under the initial luminance of 100 cd/m(2) was over 80 000 h.

引用

页码：1 / 3

页数：3

共 15 条

[11] White-light-emitting devices based on organic multilayer structure
Lim, JT
Lee, NH
Ahn, YJ
Kang, GW
Lee, CH
[J]. CURRENT APPLIED PHYSICS, 2002, 2 (04) : 295 - 298
[12] Highly efficient yellow and white organic electroluminescent devices doped with 2,8-di(t-butyl)-5,11-di[4-(t-butyl)phenyl]-6,12-diphenylnaphthacene
Liu, TH
Wu, YS
Lee, MT
Chen, HH
Liao, CH
Chen, CH
[J]. APPLIED PHYSICS LETTERS, 2004, 85 (19) : 4304 - 4306
[13] MATSUMOTO T, 2003, P IDMC 03, P413
[14] Zhou X, 2000, ADV MATER, V12, P265, DOI 10.1002/(SICI)1521-4095(200002)12:4<265::AID-ADMA265>3.0.CO
[15] 2-L

← 1 2 →