Pt(II) complex based phosphorescent organic light emitting diodes with external quantum efficiencies above 20%

被引：47

作者：

Wang, Z. B. ^{[1
]}

Helander, M. G. ^{[1
]}

Hudson, Z. M. ^{[2
]}

Qiu, J. ^{[1
]}

Wang, S. ^{[2
]}

Lu, Z. H. ^{[1
,3
]}

机构：

[1] Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 3E4, Canada

[2] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada

[3] Yunnan Univ, Dept Phys, Kunming 650091, Yunnan, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 21期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ELECTROPHOSPHORESCENT DEVICES; LIGAND;

D O I：

10.1063/1.3593495

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Phosphorescent organic light emitting diodes with >20% external quantum efficiency have been demonstrated for the first time using a cyclometalated Pt (II) complex with a triarylboron group, i.e., acetylacetonato (5-dimesitylboryl-2-(phenyl)pyridyl)platinum(II), or Pt-BppyA. This unprecedented device performance is mainly attributed to the high quantum yield of the Pt (II) complex that is achieved by using a triarylboron moiety as well as to the highly optimized double emission zone device architecture. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3593495]

引用

页数：3

共 26 条

[1] Nearly 100% internal phosphorescence efficiency in an organic light-emitting device [J].

Adachi, C ;

Baldo, MA ;

Thompson, ME ;

Forrest, SR .

JOURNAL OF APPLIED PHYSICS, 2001, 90 (10) :5048-5051

[2] High-efficiency organic electrophosphorescent devices with tris(2-phenylpyridine)iridium doped into electron-transporting materials [J].

Adachi, C ;

Baldo, MA ;

Forrest, SR ;

Thompson, ME .

APPLIED PHYSICS LETTERS, 2000, 77 (06) :904-906

[3] New charge-carrier blocking materials for high efficiency OLEDs [J].

Adamovich, VI ;

Cordero, SR ;

Djurovich, PI ;

Tamayo, A ;

Thompson, ME ;

D'Andrade, BW ;

Forrest, SR .

ORGANIC ELECTRONICS, 2003, 4 (2-3) :77-87

[4] 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

[5] 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

[6] Synthesis and characterization of phosphorescent cyclometalated platinum complexes [J].

Brooks, J ;

Babayan, Y ;

Lamansky, S ;

Djurovich, PI ;

Tsyba, I ;

Bau, R ;

Thompson, ME .

INORGANIC CHEMISTRY, 2002, 41 (12) :3055-3066

[7] N∧C∧N-coordinated platinum(II) complexes as phosphorescent emitters in high-performance organic light-emitting devices [J].

Cocchi, Massimo ;

Virgili, Dalia ;

Fattori, Valeria ;

Rochester, David L. ;

Williams, J. A. Gareth .

ADVANCED FUNCTIONAL MATERIALS, 2007, 17 (02) :285-289

[8] Bright-blue electroluminescence from a silyl-substituted ter-(phenylene-vinylene) derivative [J].

Gao, ZQ ;

Lee, CS ;

Bello, I ;

Lee, ST ;

Chen, RM ;

Luh, TY ;

Shi, J ;

Tang, CW .

APPLIED PHYSICS LETTERS, 1999, 74 (06) :865-867

[9] Experimental design for the determination of the injection barrier height at metal/organic interfaces using temperature dependent current-voltage measurements [J].

Helander, M. G. ;

Wang, Z. B. ;

Greiner, M. T. ;

Qiu, J. ;

Lu, Z. H. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2009, 80 (03)

[10] Enhancing Phosphorescence and Electrophosphorescence Efficiency of Cyclometalated Pt(II) Compounds with Triarylboron [J].

Hudson, Zachary M. ;

Sun, Christina ;

Helander, Michael G. ;

Amarne, Hazem ;

Lu, Zheng-Hong ;

Wang, Suning .

ADVANCED FUNCTIONAL MATERIALS, 2010, 20 (20) :3426-3439

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