Effect of ultraviolet-ozone treatment of indium-tin-oxide on electrical properties of organic light emitting diodes

被引：130

作者：

Kim, SY

Lee, JL ^{[1
]}

Kim, KB

Tak, YH

机构：

[1] Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 790784, Kyungbuk, South Korea

[2] LG Elect Inc, Kumi 730030, Kyungbuk, South Korea

来源：

JOURNAL OF APPLIED PHYSICS | 2004年 / 95卷 / 05期

关键词：

D O I：

10.1063/1.1635995

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the change of surface electronic structure of indium-tin-oxide (ITO) as a function of ultraviolet (UV)-ozone treatment time. The voltage of organic light emitting diodes at a current density of 100 mA/cm(2) was reduced as the surface treatment time using UV-ozone was lengthened. X-ray photoelectron spectroscopy results showed that the relative concentration of carbon atoms decreased, but oxygen concentration increased relatively with UV-ozone treatment. This led to the increase in the ITO work function via the reduction of operation voltage. (C) 2004 American Institute of Physics.

引用

页码：2560 / 2563

页数：4

共 12 条

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