一种双核铕配合物的合成、光致发光和电致发光性质研究  

Synthesis, Photoluminescence and Electroluminescence Properties of a New Binuclear Eu(III) Complex

作　　者：陈芳芳[1] 关敏[2] 张佑专[1] 王科志[1] 黄春辉[2] 

机构地区：[1]北京师范大学化学系,北京100875 [2]北京大学稀土材料化学与应用国家重点实验室,北京100871

出　　处：《化学学报》2005年第7期663-666,F010,共5页Acta Chimica Sinica

基　　金：国家自然科学基金(Nos.20371008;90401007;50372002);北京大学稀土材料化学与应用国家重点实验室开放基金资助项目

摘　　要：合成了一个新的双核铕配合物Eu(TTA)3(tpphz)Eu(TTA)3(其中TTA=去质子化的α-噻吩甲酰三氟丙酮;tpphz=[3,2-a:2',3'-c:3'',2''-h:2''',3'''-j]四吡啶基吩嗪).研究了该配合物的光致发光和电致发光性质.一个四层电致发光器件ITO/TPD,10nm/Eu(TTA)3(tpphz)Eu(TTA)3,20nm/BCP,20nm/AlQ,40nm/Mg0.9Ag0.1,200nm/Ag,100nm表现出中心在633nm处的宽带红光发射,该宽带发射可能来源于双核Eu(III)配合物和TPD形成的激基复合物.该器件的启动电压为10V,在18V和135mA/cm2时的最大亮度达146cd/m2.A binuclear europium(II) complex of Eu(TTA)3(tpphz)Eu(TTA)3 (where tpphz=tetrapyrido- [3,2-a:2',3'-c:3'',2''-h:2''',3'''-j]phenazine; TTA=α-thenoyltrifluoroacetonato) was newly synthesized. The photoluminescent and electroluminescent properties of the complex were studied. A four-layered device of ITO/TPD, 10 nm/Eu(TTA)3(tpphz)Eu(TTA)3, 20 nm/BCP, 20 nm/AlQ, 40 nm/Mg0.9Ag0.1, 200 nm/Ag, 100 nm gave a wide emission peak centered at 633 nm, which was most probably due to the formation of the ex-ciplex between the Eu(III) complex and TPD. The maximum luminance of 146 cd/m2 at 18 V and 135 mA/cm2, and a turn-on voltage of 10 V were achieved for the device.

关 键 词：铕配合物 光致发光 双核 性质研究 合成 噻吩甲酰三氟丙酮 Eu(Ⅲ)配合物 电致发光器件 激基复合物 去质子化 发光性质 红光发射 启动电压 宽带发射 TPD TTA 吡啶基 ITO BCP 

分 类 号：O641.4[理学—物理化学]