共掺杂稀土配合物Tb_(0.5)Eu_(0.5)(asprin)_3phen电致发光的研究  

Emission of Rare Earth Complex Tb_(0.5)Eu_(0.5)(asprin)_3phen

作　　者：沈鸿[1] 徐征[1] 章婷[1] 陶栋梁[2] 杨军[2] 徐怡庄[2] 

机构地区：[1]北方交通大学光电子技术研究所信息存储显示与材料开放实验室,北京100044 [2]北京大学稀土材料化学及应用国家重点实验室,北京100871

出　　处：《中国稀土学报》2002年第6期660-662,共3页Journal of the Chinese Society of Rare Earths

基　　金：国家自然科学基金(19974002;59982001;29992530);北方交通大学论文基金;北京市自然科学基金(4012010)资助项目

摘　　要：合成了共掺杂稀土配合物Tb0.5Eu0.5(asprin)3phen,将其掺杂到导电聚合物PVK中,制成结构为ITO PVK∶RE配合物 PBD Al的电致发光器件。与PVK∶Eu(asprin)3phen体系为发光层的相同结构的器件相比,我们发现铽离子的引入能猝灭PVK的发光,增强铕的发光,而Tb3+本身的发光很弱,几乎看不到,说明Tb3+在其中起到能量的中间传递作用,促进了PVK到Eu3+的能量传递。本文就器件的发光特性及掺杂体系的能量传递进行了初步讨论。The coprecipitate Tb0.5Eu0.5(asprin)3phen was synthesized. By doping the rare earth mental complex into polymer PVK, the EL device was fabricated with the structure of ITO/PVK:RE/PBD/Al. Compared with the device using PVK/Eu(asprin)3phen blend as the light emitting layer, the emission of Eu3+ in the PVK/Tb0.5 Eu0.5(asprin)3 phen blend was greatly enhanced accompanying with the quenching of the emission of PVK, and the emission of Tb3+ was so weak that it was almost unseen in the EL spectrum. The results demonstrate that in the blend of PVK/Tb0.5Eu0.5(asprin)3phen the Tb3+ acts as energy transfer bridge that helps energy transfer from PVK to Eu3+ efficiently. The possible energy transfer process of the device was preliminarily discussed.

关 键 词：掺杂 稀土配合物 Tb0.5Eu0.5(asprin)3phen 电致发光 电致发光器件 能量传递 

分 类 号：TN383.1[电子电信—物理电子学] O482[理学—固体物理]