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
收藏
页码：343 / 346
页数：4
相关论文
共 15 条
  • [1] Bernius MT, 2000, ADV MATER, V12, P1737, DOI 10.1002/1521-4095(200012)12:23<1737::AID-ADMA1737>3.0.CO
  • [2] 2-N
  • [3] Characterizing Joule heating in polymer light-emitting diodes using a scanning thermal microscope
    Boroumand, FA
    Hammiche, A
    Hill, G
    Lidzey, DG
    [J]. ADVANCED MATERIALS, 2004, 16 (03) : 252 - +
  • [4] Polymer light-emitting diodes with polyethylene dioxythiophene-polystyrene sulfonate as the transparent anode
    Cao, Y
    Yu, G
    Zhang, C
    Menon, R
    Heeger, AJ
    [J]. SYNTHETIC METALS, 1997, 87 (02) : 171 - 174
  • [5] Stability of the interface between indium-tin-oxide and poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) in polymer light-emitting diodes
    de Jong, MP
    van IJzendoorn, LJ
    de Voigt, MJA
    [J]. APPLIED PHYSICS LETTERS, 2000, 77 (14) : 2255 - 2257
  • [6] Molecular-scale interface engineering for polymer light-emitting diodes
    Ho, PKH
    Kim, JS
    Burroughes, JH
    Becker, H
    Li, SFY
    Brown, TM
    Cacialli, F
    Friend, RH
    [J]. NATURE, 2000, 404 (6777) : 481 - 484
  • [7] LEADBEATER M, 2004, SID, V35, P162
  • [8] Hole-transporting interlayers for improving the device lifetime in the polymer light-emitting diodes
    Lee, Tae-Woo
    Kim, Mu-Gyeom
    Kim, Sang Yeol
    Park, Sang Hun
    Kwon, Ohyun
    Noh, Taeyong
    Oh, Tae-Sik
    [J]. APPLIED PHYSICS LETTERS, 2006, 89 (12)
  • [9] Endothermic exciplex-exciton energy-transfer in a blue-emitting polymeric heterojunction system
    Morteani, AC
    Friend, RH
    Silva, C
    [J]. CHEMICAL PHYSICS LETTERS, 2004, 391 (1-3) : 81 - 84
  • [10] Barrier-free electron-hole capture in polymer blend heterojunction light-emitting diodes
    Morteani, AC
    Dhoot, AS
    Kim, JS
    Silva, C
    Greenham, NC
    Murphy, C
    Moons, E
    Ciná, S
    Burroughes, JH
    Friend, RH
    [J]. ADVANCED MATERIALS, 2003, 15 (20) : 1708 - +
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