Enhanced Brightness of Eu<sup>3+</sup> Complex in Organic Electroluminescent Devices by Using Another Rare-Earth Ion

Chin. Phys. Lett.

2002, Vol. 19

Issue (12): 1884-1886 DOI:

Original Articles

Enhanced Brightness of Eu³⁺ Complex in Organic Electroluminescent Devices by Using Another Rare-Earth Ion

BAI Feng¹;DENG Zhen-Bo¹;GAO Xin¹;LI Yong²;XU Yi-Zhuang²;WU Jin-Guang²

Institute of Optoelectronics Technology, Laboratory of ¹Materials for Information Storage and Display, Ministry of Railway Key Laboratory, Northern Jiaotong University, Beijing 100044 ²College of Chemistry and Molecular Engineering, State Key Laboratory of Rare Earth Materials Chemistry and Application, Peking University, Beijing 100871

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BAI Feng, DENG Zhen-Bo, GAO Xin et al 2002 Chin. Phys. Lett. 19 1884-1886

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Abstract Rare-earth ions Tb³⁺ ion and La³⁺ ion were used as a bridge to improve the energy transfer from the polymer to an Eu complex. The material Tb(La _0.5Eu_0.5(BSA)₃phen was synthesized and used as the emission layer in the device: ITO/PVK:Tb(La)_0.5Eu_0.5(BSA)₃phen/Alq/Al. The two device were compared in details and it was found that the device used La_0.5Eu_0.5(BSA)₃phen as the emission material had better Monochromatic characteristics with the maximal brightness of 102 cd/m² and the colour coordinates x = 0.55 and y = 0.36.

Keywords: 78.60.Fi 85.60.Jb

Published: 01 December 2002

PACS:	78.60.Fi	(Electroluminescence)
	85.60.Jb	(Light-emitting devices)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I12/01884

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	BAI Feng
	DENG Zhen-Bo
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	WU Jin-Guang

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