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Efficient red organic light-emitting diode sensitized by a phosphorescent Ir compound

文献类型:期刊论文

作者Wang, X. R.; You, H.; Tang, H.; Ding, G. H.; Ma, D. G.; Tian, H.; Sun, R. G.
刊名JOURNAL OF LUMINESCENCE
出版日期2008
卷号128期号:1页码:27-30
关键词Oled Fluorescence Phosphorescent Sensitization
ISSN号0022-2313
DOI10.1016/j.jlumin.2007.05.003
英文摘要The efficiencies of red organic light-emitting diode (OLED) using tris-(8-hydroxy-quinoline)aluminum (Alq(3)) as host and 4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB) as dopant were greatly increased by adding a small amount (0.3 wt%) of Ir compound, iridium(III) bis(3-(2-benzothiazolyl)-7-(diethylamino)-2H-1-benzopyran-2-onato-N-',C-4) (acetyl acetonate) (Ir(C6)(2)(acac)), as a sensitizer. The device has a sandwiched structure of indium tin oxide (ITO)/4,4('),4('')-tris (N-(2-naphthyl)-N-phenyl-amino)triphenylamine (T-NATA) (40 nm)/N,N-'-bis(1-naphthyl)-N,N-'-diphenyl-1,1(')-biphenyl-4,4(') diamine (NPB) (40 nm)/Alq(3):DCJTB (0.7 wt%):Ir(C6)(2)(acac) (0.3 wt%) (40 nm)/Alq(3) (40 nm)/LiF (1 nm)/Al (120 nm). It can be seen that the current efficiencies of this device remained almost (13.8 +/- 1) cd/A from 0.1 to 20,000 cd/m(2) and the Commission International d'Eclairage (CIE) coordinates at (0.60, 0.37) in the range of wide brightness. The significant improvement was attributed to the sensitization effect of the doped Ir(C6)(2)(acac), thus the energy of singlet and triplet excitons is simultaneously transferred to the DCJTB. (C) 2007 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000250280600006
出版者ELSEVIER SCIENCE BV
源URL[http://ir.iccas.ac.cn/handle/121111/63595]  
专题中国科学院化学研究所
通讯作者Sun, R. G.
作者单位1.Shanghai Univ, Key Lab Adv Displays & Syst Applicat, Shanghai 201800, Peoples R China
2.Chinese Acad Sci, Grad Sch, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
3.E China Univ Sci & Technol, Inst Adv Mat & Fine Chem, Shanghai 200237, Peoples R China
推荐引用方式
GB/T 7714
Wang, X. R.,You, H.,Tang, H.,et al. Efficient red organic light-emitting diode sensitized by a phosphorescent Ir compound[J]. JOURNAL OF LUMINESCENCE,2008,128(1):27-30.
APA Wang, X. R..,You, H..,Tang, H..,Ding, G. H..,Ma, D. G..,...&Sun, R. G..(2008).Efficient red organic light-emitting diode sensitized by a phosphorescent Ir compound.JOURNAL OF LUMINESCENCE,128(1),27-30.
MLA Wang, X. R.,et al."Efficient red organic light-emitting diode sensitized by a phosphorescent Ir compound".JOURNAL OF LUMINESCENCE 128.1(2008):27-30.

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来源:化学研究所

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