High-performance organic red-light-emitting devices based on a greenish-yellow-light-emitting host and long-wavelength emitting dopant

被引：8

作者：

Chew, S ^{[1
]}

Wang, PF

Hong, ZR

Tao, SL

Tang, JX

Lee, CS

Wong, NB

Kwong, HL

Lee, ST

机构：

[1] City Univ Hong Kong, Dept Phys & Mat Sci, COSDAF, Hong Kong, Hong Kong, Peoples R China

[2] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100101, Peoples R China

[3] City Univ Hong Kong, Dept Biol & Chem, Hong Kong, Hong Kong, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 18期

关键词：

D O I：

10.1063/1.2196066

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrated an organic red-light-emitting device (ORLED) using a host, 5,6-bis-[4-(naphthalene-1-yl-phenyl-amino)-phenyl]-pyrazine-2,3-dicarbonitrile (BNPPDC), and a dopant, 2,3-bis[[[(2-hydroxy-4-diethylamino)phenyl] (methylene)] amino]-2-butanedinitrile (BDPMB). The device achieved a brightness of 9730 cd/m(2) at a 11 V, a power efficiency of 2.35lm/W, a current efficiency of 3.36 cd/A at 4.5 V, and a low turn-on voltage of 3.0 V, with nearly saturated red emission. The device is superior or equal to the best fluorescent ORLEDs reported. BNPPDC generally induced a significant blueshift in dopant emission, thus it may serve as a host for dopants emitting at long wavelengths in ORLEDs with improved performance.

引用

页数：3

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