Wide-Range Color Tuning of Iridium Biscarbene Complexes from Blue to Red by Different N∧N Ligands: an Alternative Route for Adjusting the Emission Colors

被引:200
作者
Lu, Kun-Yi [1 ]
Chou, Ho-Hsiu [1 ]
Hsieh, Cheng-Han [1 ]
Yang, Yu-Han Ou [1 ]
Tsai, Huei-Ru [1 ]
Tsai, Hsiu-Yun [1 ]
Hsu, Lun-Chia [1 ]
Chen, Chien-Yu [1 ]
Chen, I-Chia [1 ]
Cheng, Chien-Hong [1 ]
机构
[1] Natl Tsing Hua Univ, Dept Chem, Hsinchu 30013, Taiwan
关键词
LIGHT-EMITTING DEVICES; HIGHLY EFFICIENT; PHOSPHORESCENT EMISSION; CHARGE; GREEN; HOST; DIODES; MOIETIES; BALANCE; DESIGN;
D O I
10.1002/adma.201102886
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Four new iridium biscarbene complexes with different N boolean AND N ligands showing very different emission colors from deep-blue to red are synthesized. The emission colors are mainly controlled by the N boolean AND N ligands. The electroluminescent devices using these complexes as dopant emitters exhibit extremely high efficiencies.
引用
收藏
页码:4933 / 4937
页数:5
相关论文
共 46 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], P SID 02 BOST US
[3]   High-efficiency fluorescent organic light-emitting devices using a phosphorescent sensitizer [J].
Baldo, MA ;
Thompson, ME ;
Forrest, SR .
NATURE, 2000, 403 (6771) :750-753
[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]   Highly efficient blue-emitting iridium(III) carbene complexes and phosphorescent OLEDs [J].
Chang, Chiung-Fang ;
Cheng, Yi-Ming ;
Chi, Yun ;
Chiu, Yuan-Chieh ;
Lin, Chao-Chen ;
Lee, Gene-Hsiang ;
Chou, Pi-Tai ;
Chen, Chung-Chia ;
Chang, Chih-Hao ;
Wu, Chung-Chih .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (24) :4542-4545
[6]   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-+
[7]   Tuning iridium(III) phenylpyridine complexes in the "almost blue" region [J].
Coppo, P ;
Plummer, EA ;
De Cola, L .
CHEMICAL COMMUNICATIONS, 2004, (15) :1774-1775
[8]   Photophysical and electrochemical properties of heteroleptic tris-cyclometalated iridium(III) complexes [J].
Dedeian, K ;
Shi, JM ;
Shepherd, N ;
Forsythe, E ;
Morton, DC .
INORGANIC CHEMISTRY, 2005, 44 (13) :4445-4447
[9]   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
[10]   Red-light-emitting iridium complexes with hole-transporting 9-arylcarbazole moieties for electrophosphorescence efficiency/color purity trade-off optimizationE [J].
Ho, Cheuk-Lam ;
Wong, Wai-Yeung ;
Gao, Zhi-Qiang ;
Chen, Chin-Hsin ;
Cheah, Kok-Wai ;
Yao, Bing ;
Xie, Zhiyuan ;
Wang, Qi ;
Ma, Dongge ;
Wang, Lixiang ;
Yu, Xiao-Ming ;
Kwok, Hoi-Sing ;
Lin, Zhenyang .
ADVANCED FUNCTIONAL MATERIALS, 2008, 18 (02) :319-331