Electroluminescent Property of A Novel Co-Doped Rare Earth Complex
来源期刊：JOURNAL OF RARE EARTHS2007年第5期
论文作者：Huang Jinzhao Jia Xiaoyun Zhang Jingchang Lü Yuguang Zhao Suling Xu Zheng Fu Yali Song Lin
Key words：electroluminescence; energy transfer; rare earths;
Abstract: A novel co-doped rare earth complex Gd0.5Eu0.5(TTA)3Dipy was synthesized and chosen as the emitter material in the organic electroluminescent device ITO/PVK:Gd0.5Eu0.5(TTA)3Dipy/PBD/Al. It was proved that there was Frster energy transfer from Gd3+ to Eu3+. The electroluminescent mechanism of the device was proposed by measuring and analyzing the emission and the excitation spectra of the emissive layer. Gd3+ might play the role of promoting the energy transfer from PVK to Eu3+ and inhibiting an intrinsic luminescence of PVK. The device displayed red light with good monochromaticity. The possible energy transfer process of the device was preliminarily discussed.
Huang Jinzhao1，Jia Xiaoyun1，Zhang Jingchang2，Lü Yuguang2，Zhao Suling1，Xu Zheng1，Fu Yali2，Song Lin1
(1.Key Laboratory of Luminescence and Optical Information, Ministry of Education,Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044,China;
2.Institute of Modern Catalysis, Beijing University of Chemical Technology, State Key Laboratory of Chemical Resource Engineering, Beijing 100029, China)
Abstract:A novel co-doped rare earth complex Gd0.5Eu0.5(TTA)3Dipy was synthesized and chosen as the emitter material in the organic electroluminescent device ITO/PVK:Gd0.5Eu0.5(TTA)3Dipy/PBD/Al. It was proved that there was Frster energy transfer from Gd3+ to Eu3+. The electroluminescent mechanism of the device was proposed by measuring and analyzing the emission and the excitation spectra of the emissive layer. Gd3+ might play the role of promoting the energy transfer from PVK to Eu3+ and inhibiting an intrinsic luminescence of PVK. The device displayed red light with good monochromaticity. The possible energy transfer process of the device was preliminarily discussed.
Key words:electroluminescence; energy transfer; rare earths;
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