A host material consisting of phosphinic amide for efficient sky-blue phosphorescent organic light-emitting diodes

被引：5
作者：
Wu, Fu-Peng
Xie, Yue-Min
Cui, Lin-Song
Liu, Xiang-Yang
Li, Qian
Jiang, Zuo-Quan [1 ]
Liao, Liang-Sheng
机构：
[1] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Peoples R China
来源：
SYNTHETIC METALS | 2015年 / 205卷
关键词：
Bipolar host material; Phosphinic amide; Resonance effect; Phosphorescence; Organic light-emitting diodes; BIPOLAR HOST; TRIPLET ENERGY; RED ELECTROPHOSPHORESCENCE; OXIDE HOST; CARBAZOLE; DEVICES; GREEN; DERIVATIVES; FLUORENE; DESIGN;
D O I：
10.1016/j.synthmet.2015.03.023
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new bipolar host material (PBCz-PO) consisting a phosphinic amide is developed to show a resonance effect. It possesses quite high triplet energy (2.76 eV), and this high triplet energy make it suitable to be blue host in phosphorescent organic light-emitting diodes (PHOLEDs). The device with PBCz-PO as a host and Firpic as a dopant achieved a maximum current efficiency (eta(c)) of 31.5 cd/A, a maximum power efficiency (eta(p)) of 31.0 Im/W and a maximum external quantum efficiency (EQE) of 13.4% as well as low driving voltage. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：11 / 17
页数：7
相关论文
共 60 条
[1]   High-efficiency red electrophosphorescence devices [J].
Adachi, C ;
Baldo, MA ;
Forrest, SR ;
Lamansky, S ;
Thompson, ME ;
Kwong, RC .
APPLIED PHYSICS LETTERS, 2001, 78 (11) :1622-1624
[2]   Very high-efficiency green organic light-emitting devices based on electrophosphorescence [J].
Baldo, MA ;
Lamansky, S ;
Burrows, PE ;
Thompson, ME ;
Forrest, SR .
APPLIED PHYSICS LETTERS, 1999, 75 (01) :4-6
[3]   Highly efficient phosphorescent emission from organic electroluminescent devices [J].
Baldo, MA ;
O'Brien, DF ;
You, Y ;
Shoustikov, A ;
Sibley, S ;
Thompson, ME ;
Forrest, SR .
NATURE, 1998, 395 (6698) :151-154
[4]   FIrpic: archetypal blue phosphorescent emitter for electroluminescence [J].
Baranoff, Etienne ;
Curchod, Basile F. E. .
DALTON TRANSACTIONS, 2015, 44 (18) :8318-8329
[5]   New Host Material for High-Performance Blue Phosphorescent Organic Electroluminescent Devices [J].
Bin, Jong-Kwan ;
Cho, Nam-Sung ;
Hong, Jong-In .
ADVANCED MATERIALS, 2012, 24 (21) :2911-2915
[6]   Bipolar Host Materials: A Chemical Approach for Highly Efficient Electrophosphorescent Devices [J].
Chaskar, Atul ;
Chen, Hsiao-Fan ;
Wong, Ken-Tsung .
ADVANCED MATERIALS, 2011, 23 (34) :3876-3895
[7]   Silicon-Based Material with Spiro-Annulated Fluorene/Triphenylamine as Host and Exciton-Blocking Layer for Blue Electrophosphorescent Devices [J].
Chen, Hua ;
Jiang, Zuo-Quan ;
Gao, Chun-Hong ;
Xu, Mei-Feng ;
Dong, Shou-Cheng ;
Cui, Lin-Song ;
Ji, Shun-Jun ;
Liao, Liang-Sheng .
CHEMISTRY-A EUROPEAN JOURNAL, 2013, 19 (35) :11791-11797
[8]   A rational molecular design on choosing suitable spacer for better host materials in highly efficient blue and white phosphorescent organic light-emitting diodes [J].
Cui, Lin-Song ;
Liu, Yuan ;
Li, Qian ;
Jiang, Zuo-Quan ;
Liao, Liang-Sheng .
ORGANIC ELECTRONICS, 2014, 15 (07) :1368-1377
[9]   Bipolar host materials for high efficiency phosphorescent organic light emitting diodes: tuning the HOMO/LUMO levels without reducing the triplet energy in a linear system [J].
Cui, Lin-Song ;
Liu, Yuan ;
Yuan, Xiao-Dong ;
Li, Qian ;
Jiang, Zuo-Quan ;
Liao, Liang-Sheng .
JOURNAL OF MATERIALS CHEMISTRY C, 2013, 1 (48) :8177-8185
[10]   A simple systematic design of phenylcarbazole derivatives for host materials to high-efficiency phosphorescent organic light-emitting diodes [J].
Cui, Lin-Song ;
Dong, Shou-Cheng ;
Liu, Yuan ;
Li, Qian ;
Jiang, Zuo-Quan ;
Liao, Liang-Sheng .
JOURNAL OF MATERIALS CHEMISTRY C, 2013, 1 (25) :3967-3975
123456