Simple Bipolar Molecules Constructed from Biphenyl Moieties as Host Materials for Deep-Blue Phosphorescent Organic Light-Emitting Diodes

被引：65

作者：

Fan, Cong ^{[2
]}

Zhao, Fangchao ^{[1
]}

Gan, Pei ^{[2
]}

Yang, Sifen ^{[2
]}

Liu, Tengxiao ^{[2
]}

Zhong, Cheng ^{[2
]}

Ma, Dongge ^{[1
]}

Qin, Jingui ^{[2
]}

Yang, Chuluo ^{[2
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

[2] Wuhan Univ, Dept Chem, Hubei Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2012年 / 18卷 / 18期

基金：

中国国家自然科学基金;

关键词：

biphenyls; carbazoles; iridium; organic light-emitting diodes; phosphine oxides; HIGH-TRIPLET-ENERGY; EFFICIENT BLUE; QUANTUM EFFICIENCY; GREEN; ELECTROPHOSPHORESCENCE; EMISSION; DEVICES; RED; TRIPHENYLAMINE; DERIVATIVES;

D O I：

10.1002/chem.201103703

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Simple is good! Based on biphenyl molecules, two bipolar host materials with high triplet energies have been rationally designed, synthesized, and fully characterized. Deep blue phosphorescent organic light-emitting diodes, which employ the new hosts and an iridium(III) complex as triplet emitter, show a maximum current efficiency of 40 cdA -1, a maximum power efficiency of 36 lmW -1, and a maximum external quantum efficiency of 19.5%. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：5510 / 5514

页数：5

共 48 条

[1] Endothermic energy transfer: A mechanism for generating very efficient high-energy phosphorescent emission in organic materials [J].

Adachi, C ;

Kwong, RC ;

Djurovich, P ;

Adamovich, V ;

Baldo, MA ;

Thompson, ME ;

Forrest, SR .

APPLIED PHYSICS LETTERS, 2001, 79 (13) :2082-2084

[2]

[Anonymous], [No title captured], Patent No. 0901

[3]

[Anonymous], 2008, ANGEW CHEM

[4] 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

[5] Ultraviolet electroluminescence and blue-green phosphorescence using an organic diphosphine oxide charge transporting layer [J].

Burrows, PE ;

Padmaperuma, AB ;

Sapochak, LS ;

Djurovich, P ;

Thompson, ME .

APPLIED PHYSICS LETTERS, 2006, 88 (18)

[6] Recent Developments in Top-Emitting Organic Light-Emitting Diodes [J].

Chen, Shufen ;

Deng, Lingling ;

Xie, Jun ;

Peng, Ling ;

Xie, Linghai ;

Fan, Quli ;

Huang, Wei .

ADVANCED MATERIALS, 2010, 22 (46) :5227-5239

[7] Efficient red electrophosphorescence from a fluorene-based bipolar host material [J].

Chien, Chen-Han ;

Hsu, Fang-Ming ;

Shu, Ching-Fong ;

Chi, Yun .

ORGANIC ELECTRONICS, 2009, 10 (05) :871-876

[8] Low Driving Voltage, High Quantum Efficiency, High Power Efficiency, and Little Efficiency Roll-Off in Red, Green, and Deep-Blue Phosphorescent Organic Light-Emitting Diodes Using a High-Triplet-Energy Hole Transport Material [J].

Cho, Yong Joo ;

Lee, Jun Yeob .

ADVANCED MATERIALS, 2011, 23 (39) :4568-+

[9] A Highly Efficient Universal Bipolar Host for Blue, Green, and Red Phosphorescent OLEDs [J].

Chou, Ho-Hsiu ;

Cheng, Chien-Hong .

ADVANCED MATERIALS, 2010, 22 (22) :2468-+

[10] Low voltage and very high efficiency deep-blue phosphorescent organic light-emitting devices [J].

Eom, Sang-Hyun ;

Zheng, Ying ;

Chopra, Neetu ;

Lee, Jaewon ;

So, Franky ;

Xue, Jiangeng .

APPLIED PHYSICS LETTERS, 2008, 93 (13)

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