CN-carbazole modified diphenylsilane-type high triplet energy hosts for blue phosphorescent organic light-emitting diodes

被引：5
作者：
Yun, Ju Hui [1 ]
Han, Si Hyun [1 ]
Lee, Jun Yeob [1 ]
机构：
[1] Sungkyunkwan Univ, Sch Chem Engn, 2066 Seobu Ro, Suwon 440746, Gyeonggi Do, South Korea
来源：
ORGANIC ELECTRONICS | 2018年 / 62卷
基金：
新加坡国家研究基金会;
关键词：
Host; Blue device; Phosphorescent device; Organic light-emitting diodes; Efficiency; EXTERNAL QUANTUM EFFICIENCY; LOW-DRIVING-VOLTAGE; ELECTROPHOSPHORESCENT DEVICES; ROLL-OFF; 30-PERCENT; DERIVATIVES; DOPANT; OLEDS;
D O I：
10.1016/j.orgel.2018.08.028
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Diphenylsilane-derived high triplet energy host materials were developed by coupling diphenylsilane with CN-modified carbazoles. Two host materials with two CN-modified carbazoles or one CN-modified carbazole were synthesized, and their photophysical and device behavior were investigated. The host materials delivered a high triplet energy over 3.00 eV, a high glass transition temperature over 130 degrees C, ambipolar charge transport, and high external quantum efficiency over 20% as hosts of deep blue-emitting Ir emitters.
引用
收藏
页码：342 / 350
页数：9
相关论文
共 30 条
  • [1] New Host Material for High-Performance Blue Phosphorescent Organic Electroluminescent Devices
    Bin, Jong-Kwan
    Cho, Nam-Sung
    Hong, Jong-In
    [J]. ADVANCED MATERIALS, 2012, 24 (21) : 2911 - 2915
  • [2] Efficient deep blue fluorescent emitter showing high external quantum efficiency
    Cha, Seung Ji
    Han, Noh Soo
    Song, Jae Kyu
    Park, So-Ra
    Jeon, Young Min
    Suh, Min Chul
    [J]. DYES AND PIGMENTS, 2015, 120 : 200 - 207
  • [3] Tetraphenylsilane-Based High Triplet Energy Host Materials for Blue Phosphorescent Organic Light-Emitting Diodes
    Cho, Yong Joo
    Lee, Jun Yeob
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (20) : 10272 - 10276
  • [4] Anthracene derivatives as efficient emitting hosts for blue organic light-emitting diodes utilizing triplet-triplet annihilation
    Fukagawa, Hirohiko
    Shimizu, Takahisa
    Ohbe, Noriyuki
    Tokito, Shizuo
    Tokumaru, Katsumi
    Fujikake, Hideo
    [J]. ORGANIC ELECTRONICS, 2012, 13 (07) : 1197 - 1203
  • [5] 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
  • [6] Recent Progress in High-Efficiency Blue-Light-Emitting Materials for Organic Light-Emitting Diodes
    Im, Yirang
    Byun, Seong Yong
    Kim, Ji Han
    Lee, Dong Ryun
    Oh, Chan Seok
    Yook, Kyoung Soo
    Lee, Jun Yeob
    [J]. ADVANCED FUNCTIONAL MATERIALS, 2017, 27 (13)
  • [7] External Quantum Efficiency Above 20% in Deep Blue Phosphorescent Organic Light-Emitting Diodes
    Jeon, Soon Ok
    Jang, Sang Eok
    Son, Hyo Suk
    Lee, Jun Yeob
    [J]. ADVANCED MATERIALS, 2011, 23 (12) : 1436 - 1441
  • [8] New hole blocking material for green-emitting phosphorescent organic electroluminescent devices
    Jung, Sung Ouk
    Kim, Yun-Hi
    Kwon, Soon-Ki
    Oh, Hyoung-Yun
    Yang, Jung-Hwan
    [J]. ORGANIC ELECTRONICS, 2007, 8 (04) : 349 - 356
  • [9] Acridine modified dibenzothiophene derivatives as high triplet energy host materials for blue phosphorescent organic light-emitting diodes
    Kim, Ji Han
    Hwang, Seok-Ho
    Song, Wook
    Lee, Jun Yeob
    [J]. DYES AND PIGMENTS, 2015, 122 : 103 - 108
  • [10] Highly efficient deep-blue phosphorescence from heptafluoropropyl-substituted iridium complexes
    Kim, Jung-Bum
    Han, Seung-Hoon
    Yang, Kiyull
    Kwon, Soon-Ki
    Kim, Jang-Joo
    Kim, Yun-Hi
    [J]. CHEMICAL COMMUNICATIONS, 2015, 51 (01) : 58 - 61
123