ICCAS OpenIR
Efficient red organic light-emitting diode sensitized by a phosphorescent Ir compound
Wang, X. R.; You, H.; Tang, H.; Ding, G. H.; Ma, D. G.; Tian, H.; Sun, R. G.
2008
Source PublicationJOURNAL OF LUMINESCENCE
ISSN0022-2313
Volume128Issue:1Pages:27-30
AbstractThe 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.
KeywordOled Fluorescence Phosphorescent Sensitization
DOI10.1016/j.jlumin.2007.05.003
Indexed BySCI
Language英语
WOS IDWOS:000250280600006
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63596
Collection中国科学院化学研究所
Corresponding AuthorSun, R. G.
Affiliation1.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
Recommended Citation
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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