方酸作桥联配体的双核铕螯合物的电致发光  

Electroluminescent Devices Based on Binuclear Europium Chelate with Square Acid as Bridge Ligand

作　　者：魏孝强[1] 朱卫国[2] 杨爱丽[1] 李龙章[1] 谢明贵[1] 杨刚[3] 林祖伦[3] 成建波[3] 

机构地区：[1]四川大学化学学院,成都610064 [2]湘潭大学化学化工学院,湘潭411105 [3]电子科技大学光电信息学院,成都610054

出　　处：《化学学报》2003年第3期388-392,共5页Acta Chimica Sinica

基　　金：国家自然科学基金 (No .2 9972 0 32 )资助项目

摘　　要：利用方酸作为桥联配体合成了一种双核铕螯合物Eu2 (DBM) 4(Sq)Phen2 .用TPD作空穴传输材料、Eu2 (DBM ) 4(Sq) Phen2 作发光材料和载流子传输材料、8 羟基喹啉和铝 (AlQ)作电子传输材料 ,设计了不同电致发光器件结构 ,研究了器件的光电特性 ,结果表明Eu2 (DBM) 4(Sq)Phen2 是一种同时具有空穴和电子传输能力的红色电致发光材料 .在器件结构为ITO/TPD ,5 0nm/Eu2 (DBM) 4(Sq)Phen2 ,2 0nm/AlQ ,5 0nm/LiF ,1nm/Al,2 0 0nm时 ,获得了在 16V ,6 9mA下有最大亮度 91cd/m2A novel europium chelate, Eu-2 (DBM)(4) (Sq) Phen(2),which has a bridge ligand of squanic acid, was synthesized and used, as organic electroluminescent materials. Five light-emitting diodes using TPD as hole-transporting material, Eu-2 (DBM)(4) (Sq) Phen(2) as emitting material, and AIQ as electron-transporting material were fabricated. The results indicate that this europium chelate possesses both hole-transporting and electron-transporting abilities. When the structure of device is ITO/TPD, 50 nm/Eu-2(DBM)(4)(Sq) Phen(2), 20 nm/AIQ, 50 nm/LiF, 1 nm/Al, 200 nm, the maximum luminance of 91 cd/m(2) at 16 V was achieved.

关 键 词：桥联配体 双核铕螯合物 电致发光 方酸 电致发光 光致发光材料 有机电致发光器件 

分 类 号：TQ422[化学工程]