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Greenish yellow organic light emitting devices based on novel iridium complexes containing 2-cyclohexenyl-1-phenyl-1H-benzo[d]imidazole

文献类型：期刊论文

作者Han, Liangliang1; Zhang, Dongyu2; Zhou, Yuanhang1; Yang, Ying1; Woo, Han Young3; Bai, Fali1; Yang, Renqiang1
刊名DYES AND PIGMENTS
出版日期2013-12-01
卷号99期号:3页码:1010-1015
关键词Organic light emitting devices Greenish yellow phosphorescence 2-Cyclohexenyl-1-phenyl-1H-benzo[d]imidazole Heterocyclometalated iridium complexes Photoluminescence Electroluminescence
英文摘要2-Cyclohexenyl-1-phenyl-1H-benzo[d]imidazole (Hcyclopbi) and its heterocyclometalated iridium complexes bis[2-cyclohexenyl-1-phenyl-1H-benzo[d]imidazole](acetylacetonate)iridium(III) [(cyclopbi)(2)Iracac] and bis[2-cyclohexenyl-1-phenyl-1H-benzo[d]imidazole][2-(3-(trifluoromethyl)-1H-pyrazol-5-yl)pyridinate]iridium(III) [(cyclopbi)(2)IrCF3] were firstly designed and synthesized. Owing to the strong electron withdrawing ability of 2-(3-(trifluoromethyl)-1H-pyrazol) compared to that of acetylacetonate, blue shifted phosphorescence 542 nm was obtained for (cyclopbi)(2)IrCF3 compared to that of (cyclopbi)(2)Iracac 545 nm with photoluminescence quantum yields (phi) 0.22 and 0.25, respectively, as well the highest occupied molecular orbit (HOMO) energy level was estimated to be -5.10 eV for (cyclopbi)(2)IrCF3, 0.19 eV lower than that of -4.91 eV for (cyclopbi)(2)Iracac. When (cyclopbi)(2)Iracac was doped into 4,4'-bis(9H-carbazol-9-yl)biphenyl (CBP) as the emitting layer, high efficiency organic light emitting devices (OLEDs) were obtained with maximum current efficiency (eta(c)) 22.3 cd/A at 3.1 mA/cm(2) and maximum brightness 16,300 cd/m(2) at 171.6 mA/cm(2), which were comparable to those of bis(2-phenylpyridine)(acetylacetonate)iridium(III) [(ppy)(2)Iracac] with the same device structure. This results indicate that (cyclopbi)(2)Iracac and (cyclopbi)(2)IrCF3 are potential phosphorescent dyes used for OLEDs. (C) 2013 Elsevier Ltd. All rights reserved.
WOS标题词Science & Technology ; Physical Sciences ; Technology
学科主题先进功能有机材料
类目[WOS]Chemistry, Applied ; Engineering, Chemical ; Materials Science, Textiles
研究领域[WOS]Chemistry ; Engineering ; Materials Science
关键词[WOS]ALKENYLQUINOLINE LIGANDS ; ELECTROCHEMICAL-CELLS ; SOLID-STATE ; EFFICIENT ; DIODES ; PHOSPHORESCENCE ; EMITTERS
收录类别SCI
语种英语
WOS记录号WOS:000327560200065
公开日期2014-03-25
源URL[http://ir.qibebt.ac.cn:8080/handle/337004/1706]  
专题青岛生物能源与过程研究所_先进有机功能材料团队
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
2.Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Suzhou 215123, Peoples R China
3.Pusan Natl Univ, Dept Cogno Mechatron Engn WCU, Miryang 627706, South Korea
推荐引用方式
GB/T 7714		 Han, Liangliang,Zhang, Dongyu,Zhou, Yuanhang,et al. Greenish yellow organic light emitting devices based on novel iridium complexes containing 2-cyclohexenyl-1-phenyl-1H-benzo[d]imidazole[J]. DYES AND PIGMENTS,2013,99(3):1010-1015.
APA Han, Liangliang.,Zhang, Dongyu.,Zhou, Yuanhang.,Yang, Ying.,Woo, Han Young.,...&Yang, Renqiang.(2013).Greenish yellow organic light emitting devices based on novel iridium complexes containing 2-cyclohexenyl-1-phenyl-1H-benzo[d]imidazole.DYES AND PIGMENTS,99(3),1010-1015.
MLA Han, Liangliang,et al."Greenish yellow organic light emitting devices based on novel iridium complexes containing 2-cyclohexenyl-1-phenyl-1H-benzo[d]imidazole".DYES AND PIGMENTS 99.3(2013):1010-1015.

入库方式： OAI收割

来源：青岛生物能源与过程研究所

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