Multilayer blue polymer light-emitting devices with spin-coated interlayers

被引：21

作者：

Duan, Lian ^{[1
]}

Chin, Byung Doo

Yang, Nam Choul

Kim, Mu-Hyun

Kim, Hye Dong

Lee, Seong Taek

Chung, Ho Kyoon

机构：

[1] Tsing Hua Univ, Key Lab Organ Optoelect & Mol Engn, Minist Educ, Beijing 100084, Peoples R China

[2] Korea Inst Sci & Technol, Optoelect Mat Res Ctr, Seoul 130650, South Korea

[3] Samsung SDI Co LTD, Corp R&D Ctr, Yongin 449902, Gyeonggi Do, South Korea

来源：

SYNTHETIC METALS | 2007年 / 157卷 / 8-9期

关键词：

blue-emitting polymer; interlayer; exciplex; charge balance; stability;

D O I：

10.1016/j.synthmet.2007.03.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Employment of multilayer heterostructures is a common approach to achieve efficiency and stable organic light emitting diodes (OLEDs). In this work, we report multilayer blue polymer light-emitting devices (PLEDs) by using spin-coated fluorene-triarylamine copolymers as interlayers between the conductive polymer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT) and the emitting layer. A blue PLED with stepped hole injection profile yields an external quantum efficiency of 6.0% at a luminance of 9500 cd/m(2) at 5.5 V and an extrapolated lifetime of more than 18,000 h from 100 cd/m(2). (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：343 / 346

页数：4

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