Synthesis and Luminescent Properties of an Organic Europium(Ⅲ) Complex Containing a Carbazole and an Oxadiazole Fragments as Carrier-transporting Functional Groups

Chem. J. Chinese Universities

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Synthesis and Luminescent Properties of an Organic Europium(Ⅲ) Complex Containing a Carbazole and an Oxadiazole Fragments as Carrier-transporting Functional Groups

TANG Huai-Jun¹, TANG Hao², ZHANG Zhi-Guo¹, YUAN Ji-Bing^1,3, ZHANG Ke-Li¹*

1. College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China;
2. School of Material Science and Engineering, Shanghai University, Shanghai 201800, China;
3. College of Biological Engineering, Hubei University of Technology, Wuhan 430068, China

Received:2007-10-24 Revised:1900-01-01 Online:2008-05-10 Published:2008-05-10
Contact: ZHANG Ke-Li

Abstract

Abstract: A novel europium(Ⅲ) complex containing a carbazole and an oxadiazole fragments as carrier-transporting functional groups was synthesized. Besides photoluminescence and some other physical properties of it were studied, an electroluminescence device doped with the europium complex, ITO/NPB(40 nm)/2\^5% Eu complex: CBP(30 nm)/BCP(10 nm)/Alq₃(30 nm)/LiF(1 nm)/Al(100 nm) was fabricated and measured, NPB was N,N’-di(naphthalene-1-yl)-N,N’-diphenyl-benzidiue, CBP was 4,4’-bis(carbazole-9-yl)-biphenyl, BCP was 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline and Alq₃ was tris(8-hydroxyquinoline) aluminium, respectively. The device gave pure and bright red light-emitting centered at 612 nm with the half peak bandwidth 4 nm. The turn-on voltage brightness was about 6 V and the maximum luminance brightness 1778 cd/m² at a driving voltage of 17.3 V.

Key words: Organic europium(Ⅲ) complex, Carbazole, Oxadiazole, Electroluminescence

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TANG Huai-Jun¹, TANG Hao², ZHANG Zhi-Guo¹, YUAN Ji-Bing^1,3, ZHANG Ke-Li¹*. Synthesis and Luminescent Properties of an Organic Europium(Ⅲ) Complex Containing a Carbazole and an Oxadiazole Fragments as Carrier-transporting Functional Groups[J]. Chem. J. Chinese Universities, doi: .

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Synthesis and Luminescent Properties of an Organic Europium(Ⅲ) Complex Containing a Carbazole and an Oxadiazole Fragments as Carrier-transporting Functional Groups

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