Color tunable organic light-emitting diodes using pentafluorophenyl-substituted iridium complexes

被引：265
作者：
Tsuzuki, T
Shirasawa, N
Suzuki, T
Tokito, S
机构：
[1] NHK Japan Broadcasting Corp, Setagaya Ku, Tokyo 1578510, Japan
[2] Inst Mol Sci, Aichi 4448585, Japan
来源：
ADVANCED MATERIALS | 2003年 / 15卷 / 17期
关键词：
D O I：
10.1002/adma.200305034
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A simple method for color tuning of the phosphorescent OLEDs; where only control over the position of a perfluorophenyl substituent in (ppy)2Ir(acac) is required is reported. By introducing a perfluorophenyl substituent into the phenylpyridine ligands of (ppy)2Ir(acac) and by changing the position of the substitution, photoluminescence (PL) and electroluminescence (EL) spectra could be tuned to either a shorter or lnger wavelength, which resulted from the change of energy levels of the triplet metal-to-ligand charge transfer (3MLCT) state in the complexes.
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收藏
页码：1455 / 1458
页数：4
相关论文
共 21 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]   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
[3]   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
[4]   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
[5]   Transient analysis of organic electrophosphorescence. II. Transient analysis of triplet-triplet annihilation [J].
Baldo, MA ;
Adachi, C ;
Forrest, SR .
PHYSICAL REVIEW B, 2000, 62 (16) :10967-10977
[6]   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
[7]   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
[8]  
Gong X, 2002, ADV MATER, V14, P581, DOI 10.1002/1521-4095(20020418)14:8<581::AID-ADMA581>3.0.CO
[9]  
2-B
[10]   New, efficient electroluminescent materials based on organometallic Ir complexes [J].
Grushin, VV ;
Herron, N ;
LeCloux, DD ;
Marshall, WJ ;
Petrov, VA ;
Wang, Y .
CHEMICAL COMMUNICATIONS, 2001, (16) :1494-1495
123