Accelerated hole transfer by double-layered metallophthalocyanine thin film for effective electroluminescence

被引：22

作者：

Tominaga, T ^{[1
]}

Hayashi, K ^{[1
]}

Toshima, N ^{[1
]}

机构：

[1] SCI UNIV TOKYO,DEPT MAT SCI & ENGN,ONODA,YAMAGUCHI 756,JAPAN

来源：

APPLIED PHYSICS LETTERS | 1997年 / 70卷 / 06期

关键词：

D O I：

10.1063/1.118252

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An electroluminescent device was constructed using tris(8-hydroxyquinoline)aluminum as an emitting layer and metallophthalocyanine as a hole-transfer layer. When the metallophthalocyanine layer is sufficiently thin, the device shows a brightness of more than 1000 cd m(-2). The device using double hole-transfer layers of two kinds of metallophthalocyanine exhibits a higher brightness than that using a single hole-transfer layer of the corresponding metallophthalocyanine. This phenomenon is well explained by the accelerated hole transfer in the double layer due to the construction of a ''sequential potential field.'' (C) 1987 American Institute of Physics.

引用

页码：762 / 763

页数：2

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