Intense and efficient ultraviolet electroluminescence from organic light-emitting devices with fluorinated copper phthalocyanine as hole injection layer

被引：36

作者：

Ichikawa, Musubu ^{[1
]}

Kobayashi, Kana ^{[1
]}

Koyama, Toshiki ^{[1
]}

Taniguchi, Yoshio ^{[1
]}

机构：

[1] Shinshu Univ, Fac Text Sci & Technol, Dept Funct Polymer Sci, Ueda, Nagano 3868567, Japan

来源：

THIN SOLID FILMS | 2007年 / 515卷 / 7-8期

关键词：

organic light-emitting diodes; ultraviolet light; fluorinated copper phthalocyanine; electroluminescence;

D O I：

10.1016/j.tsf.2006.11.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrated intense and efficient ultraviolet (UV) electroluminescence (EL) from organic light-emitting devices using an oxadiazole compound (OXD-7) as an electron transporting UV light-emitting material, whose device structure is indium tin oxide/F16CuPc/CBP/OY-D-7/LiF/Al. Using the perfluorinated copper phthalocyanine (F16CuPc) as a hole injection material (HIM) and a carbazole derivative (CBP: 4,4'-dicarbazolyl biphenyl) as a hole transporting material with no exciplex formation nature with OXD-7 enhanced the device performances. The turn-on voltage was 10.5 V, the maximum external quantum efficiency reached 0.8% at a current density of approximately 50 mA/cm(2), and the maximum radiance of EL light reached 10 mW/cm(2). The fluorinated CuPc is a potential HIM for wide bandgap organic semiconducting material devices. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：3932 / 3935

页数：4

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