Ultraviolet electroluminescence and blue-green phosphorescence using an organic diphosphine oxide charge transporting layer

被引：129

作者：

Burrows, PE ^{[1
]}

Padmaperuma, AB

Sapochak, LS

Djurovich, P

Thompson, ME

机构：

[1] Pacific NW Natl Lab, Energy Sci & Technol Directorate, Richland, WA 99352 USA

[2] Univ So Calif, Dept Chem, Los Angeles, CA 90089 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 18期

关键词：

D O I：

10.1063/1.2193429

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report electroluminescence at 338 nm from a simple bilayer organic light-emitting device (OLED) made using 4,4(')-bis(diphenylphosphine oxide) biphenyl (PO1). In an OLED geometry, the material is preferentially electron transporting. Doping the PO1 layer with iridium(III)bis(4,6-(di-fluorophenyl)-pyridinato-N,C2')picolinate (FIrpic) gives rise to electrophosphorescence with a peak external quantum efficiency of 7.8% at 0.09 mA/cm(2) and 5.9% at 13 mA/cm(2). The latter current density is obtained at 6.3 V applied forward bias.

引用

页数：3

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