Europium complexes as emitters in organic electroluminescent devices

被引:51
作者
Liu, L
Li, WL
Hong, ZR
Peng, JB
Liu, XY
Liang, CJ
Liu, ZB
Yu, JQ
Zhao, DX
机构
[1] Chinese Acad Sci, Changchun Inst Phys, Changchun 130021, Peoples R China
[2] Chinese Acad Sci, Lab Excited State Proc, Changchun 130021, Peoples R China
关键词
europium complexes; organic electroluminescent devices;
D O I
10.1016/S0379-6779(97)04029-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Using two different trivalent europium (Eu3+) complexes, europium(dibenzoylmethanato)(3)(bathophenanthroline) [Eu(DBM)(3)bath] and europium(dibenzoylmethanato)(3)(monophenanthroline) [Eu(DBM)(3)phen], with different ligands for emission-layer materials, various types of electroluminescent (EL) devices have been fabricated. Combined with a triphenylamine derivative (TPD) and an oxadiazole derivative (OXD7) as hole-transport-layer materials, two-layer-and three-layer-type devices have been fabricated. We find that these two emission-layer materials have similar EL spectra, but their EL performances are different. The EL capability of the Eu complexes and their carrier-transporting characteristics are largely dependent on the ligands. (C) 1997 Elsevier Science S.A.
引用
收藏
页码:267 / 269
页数:3
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