The relationship between the substitution position of the diphenylphosphine oxide on the spirobifluorene and device performances of blue phosphorescent organic light-emitting diodes

被引：57
作者：
Jang, Sang Eok [1 ]
Joo, Chul Woong [1 ]
Jeon, Soon Ok [1 ]
Yook, Kyoung Soo [1 ]
Lee, Jun Yeob [1 ]
机构：
[1] Dankook Univ, Dept Polymer Sci & Engn, Yongin 448701, Gyeonggi, South Korea
来源：
ORGANIC ELECTRONICS | 2010年 / 11卷 / 06期
关键词：
Phosphine oxide; Blue phosphorescent organic light-emitting diodes; High efficiency; Spirobifluorene; HOST; ELECTROPHOSPHORESCENCE; EFFICIENT;
D O I：
10.1016/j.orgel.2010.03.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A high triplet energy host (SPPO11) with a diphenylphosphine oxide group attached to the 4 position of the spirobifluorene was synthesized and its device performances were compared with those of the triplet host with the diphenylphosphine oxide at the 2 position of the spirobifluorene (SPPO1). The thermal stability of the SPPO11 was much better than that of the SPPO1 and the efficiency of the blue PHOLED with the SPPO11 host was higher than that of the blue PHOLED with the SPPO1 host. The SPPO11 could be effectively used as the high triplet energy host in the blue PHOLED and a high quantum efficiency of 17.2% and a current efficiency of 35.3 cd/A were obtained in the blue PHOLED with the SPPO11 host. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1059 / 1065
页数：7
相关论文
共 16 条
  • [1] Synthesis and optical resolution of 9,9'-spirobifluorene-1, 1'-diol
    Cheng, X
    Hou, GH
    Xie, JH
    Zhou, QL
    [J]. ORGANIC LETTERS, 2004, 6 (14) : 2381 - 2383
  • [2] Frisch M., 2004, GAUSSIAN 03 REVISION, DOI DOI 10.1016/J.MOLSTRUC.2017.03.014
  • [3] Blue organic electrophosphorescence using exothermic host-guest energy transfer
    Holmes, RJ
    Forrest, SR
    Tung, YJ
    Kwong, RC
    Brown, JJ
    Garon, S
    Thompson, ME
    [J]. APPLIED PHYSICS LETTERS, 2003, 82 (15) : 2422 - 2424
  • [4] Efficient, deep-blue organic electrophosphorescence by guest charge trapping
    Holmes, RJ
    D'Andrade, BW
    Forrest, SR
    Ren, X
    Li, J
    Thompson, ME
    [J]. APPLIED PHYSICS LETTERS, 2003, 83 (18) : 3818 - 3820
  • [5] High efficiency blue phosphorescent organic light emitting diodes using a simple device structure
    Jeon, Soon Ok
    Yook, Kyoung Soo
    Joo, Chul Woong
    Lee, Jun Yeob
    [J]. APPLIED PHYSICS LETTERS, 2009, 94 (01)
  • [6] Deep blue phosphorescent organic light-emitting diodes using a Si based wide bandgap host and an Ir dopant with electron withdrawing substituents
    Kim, Sung Hyun
    Jang, Jyongsik
    Lee, Seok Jong
    Lee, Jun Yeob
    [J]. THIN SOLID FILMS, 2008, 517 (02) : 722 - 726
  • [7] High efficiency and low power consumption in active matrix organic light emitting diodes
    Lee, JY
    Kwon, JH
    Chung, HK
    [J]. ORGANIC ELECTRONICS, 2003, 4 (2-3) : 143 - 148
  • [8] Synthetic control of excited-state properties in cyclometalated Ir(III) complexes using ancillary ligands
    Li, J
    Djurovich, PI
    Alleyne, BD
    Yousufuddin, M
    Ho, NN
    Thomas, JC
    Peters, JC
    Bau, R
    Thompson, ME
    [J]. INORGANIC CHEMISTRY, 2005, 44 (06) : 1713 - 1727
  • [9] New charge transporting host material for short wavelength organic electrophosphorescence: 2,7-bis(diphenylphosphine oxide)-9,9-dimethylfluorene
    Padmaperuma, AB
    Sapochak, LS
    Burrows, PE
    [J]. CHEMISTRY OF MATERIALS, 2006, 18 (09) : 2389 - 2396
  • [10] An ambipolar phosphine oxide-based host for high power efficiency blue phosphorescent organic light emitting devices
    Polikarpov, Evgueni
    Swensen, James S.
    Chopra, Neetu
    So, Franky
    Padmaperuma, Asanga B.
    [J]. APPLIED PHYSICS LETTERS, 2009, 94 (22)
12