Enhanced electroluminescent efficiency from spin-coated europium(III) organic light-emitting device

被引：57

作者：

Male, NAH

Salata, OV

Christou, V

机构：

[1] Univ Oxford, Dept Mat, Oxford OX5 1PF, England

[2] Univ Oxford, Inorgan Chem Lab, Oxford OX1 3QR, England

来源：

SYNTHETIC METALS | 2002年 / 126卷 / 01期

关键词：

OLED; organolanthanide phosphor; Eu complex;

D O I：

10.1016/S0379-6779(01)00373-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Devices containing the europium complex Eu(TTFA)(3)(phen) were fabricated by spin-coating. The complex was doped into poly(9-vinylcarbazole) (PVK) along with (4-tert-butylphenyl)biphenyloxadiazole (PBD) as electron-transporting material. Addition of an evaporated layer of 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (bathocuproine, BCP) forming a two-layer device structure between indium-tin oxide (ITO) and Ca:Al electrodes gave enhanced brightness and efficiency. A device 3 wt.% Eu(TTFA)(3)(phen):32 wt.% PBD:PVK with a BCP hole-blocking layer gave Eu emission with a maximum luminance of 417 cd m(-2) at 25 V and 175 mA cm(-2). (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：7 / 10

页数：4

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