Fabrication of highly efficient organic electroluminescent devices

被引：371

作者：

Kido, J ^{[1
]}

Iizumi, Y ^{[1
]}

机构：

[1] Yamagata Univ, Grad Sch Engn, Yamagata 9928510, Japan

来源：

APPLIED PHYSICS LETTERS | 1998年 / 73卷 / 19期

关键词：

D O I：

10.1063/1.122570

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Efficient organic electroluminescent (EL) devices were fabricated by using a highly fluorescent aluminum complex, tris(4-methyl-8-quinolinolato)aluminum(III) (Almq(3)), as an emitter layer. In addition to using this complex, a multilayer device structure, consisting of a hole-injecting layer, a hole transport layer, a dye-doped Almq(3) emitting layer, and an electron transport layer, was employed in order to reduce the driving voltage as well as to maximize carrier recombination efficiency. From this device, a maximum luminance of over 140 000 cd/m(2) and an external quantum efficiency of 7.1% was observed, which is the highest efficiency ever reported for organic EL devices. (C) 1998 American Institute of Physics. [S0003-6951(98)02045-2].

引用

页码：2721 / 2723

页数：3

共 19 条

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