The Luminescence Characteristic of a New Novel Coprecipitate Rare Earths Complexes
BAI Feng1, DENG Zhen-bo1*, XU Zheng1, GAO Xin1，LI Yong2, XU Yi-zhuang2, WU Jin-guang2
1. Institute of Optoelectronics Technology, Laboratory of Materials for Information Storage and Display, Ministry of Railway Key Laboratory, Beijing Jiaotong University, Beijing 100044，China 2. College of Chemistry and Molecular Engineering, State Key Laboratory of Rare Earth Materials Chemistry and Application, Peking University, Beijing 100871，China
Abstract：A new novel coprecipitate rare earths complexes La0.6Eu0.4(BSA)3phen has been synthesized and was chosen as the emitter material in the organic electroluminescent devices: ITO/PVK: La0.6Eu0.4(BSA)3phen/Alq/Al where PVK was used to improve the film-forming and hole-transporting property of the La0.6Eu0.4(BSA)3phen. It has been proved that it exists Frster energy transfer process from La3+ to Eu3+. This device has also been compared with the devices: ITO/PVK: Eu(BSA)3phen/Alq/Al and ITO/PVK: Tb0.6Eu0.4(BSA)3phen/Alq/Al. From the data, it indicated the device has the good purity of red color and good commutation property. The maximum EL brightness of 102 cd·m-2 had been got.
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