铽配合物TbY(mMBA)_6(phen)_2·2H_2O的有机电致发光分析  

Electroluminescent Device Based on Rare Earth Terbium Complex

作　　者：张梦欣[1] 邓振波[1] 白峰[1] 张志峰[1] 徐登辉[1] 梁春军[1] 王瑞芬[2] 

机构地区：[1]北京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]河北师范大学化学系,河北石家庄050091

出　　处：《光谱学与光谱分析》2005年第6期836-839,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金(90201004);北京市科委资助项目;北京交通大学校内基金(2001XM06)资助

摘　　要：将新型稀土配合物TbY(m MBA) 6 (phen) 2 ·2H2 O掺杂到导电聚合物PVK中改善了配合物的成膜性和导电性,作为发光层应用于有机电致发光。分别制作了器件(1) :ITO PVK :TbY(m MBA) 6 (phen) 2 ·2H2 O LiF Al和以Alq为电子传输层的器件(2 ) :ITO PVK :TbY(m MBA) 6 (phen) 2 ·2H2 O Alq LiF Al。研究了两种器件的电致发光性能,得到了最大效率为0 88cd·A- 1 的器件。研究了铽配合物与PVK共掺杂体系的激发光谱和光致发光谱,发现两者之间存在着能量转移,说明Y3+ 的存在促进了PVK到Tb3+ 的能量传递。文章就器件的发光特性和掺杂体系的能量传递进行了初步讨论。Rare earth complex TbY (m-MBA)(6) ( phen)(2) center dot 2H(2)O have been synthesized, which were used as emitting materials in electroluminescence. Single-layer devices and bilayer devices with Alq as electron transmission layer have been fabricated. The electroluminescent properties of the devices were studied. The electroluminescent mechanism of the devices was proposed by measuring and analyzing the emission and the excitation spectra of the emissive layer. Y3+ may play the role to promote the energy transfer from ligand to Tb3+ and the possible energy transfer process of the device was preliminarily discussed.

关 键 词：电致发光 能量传递 激子 

分 类 号：O641.4[理学—物理化学] O482.3[理学—化学]