High-efficiency tandem organic light-emitting diodes

被引：376

作者：

Liao, LS ^{[1
]}

Klubek, KP ^{[1
]}

Tang, CW ^{[1
]}

机构：

[1] Eastman Kodak Co, Display Technol Lab, Rochester, NY 14650 USA

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 02期

关键词：

D O I：

10.1063/1.1638624

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Tandem organic light-emitting diodes (OLEDs), with multiple electroluminescent (EL) units connected electrically in series, have been fabricated. Using an optically transparent doped organic "p-n" junction as the connecting unit between adjacent EL units, excellent light out-coupling and carrier-injection properties have been realized. The luminous efficiency is found to scale almost linearly with the number of EL units in the stack, giving values as high as 32 or 136 cd/A for a three-unit tandem OLED using a fluorescent or a phosphorescent emitter, respectively. (C) 2004 American Institute of Physics.

引用

页码：167 / 169

页数：3