Effect of different atmospheres on the electrical stabilization of NiO films

被引:23
作者
Jang, Wei-Luen [1 ]
Lu, Yang-Ming [2 ]
Hwang, Weng-Sing [1 ]
机构
[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 70101, Taiwan
[2] Natl Univ Tainan, Grad Inst Electroopt Engn, Tainan, Taiwan
关键词
NiO film; Sputter;
D O I
10.1016/j.vacuum.2008.04.035
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Sputtered nickel oxide (NiO) films have a wide range of applications including their use in transparent conductive anodes for organic light-emitting diodes (OLEDs) where stable electrical properties are essential. Unfortunately, NiO films show electrical aging phenomenon in air. In the present experiments, the phenomenon of aging was investigated in different atmospheres including H-2, CO, O-2, CO2, N-2, and Ar together with varying the humidity. It was found that NiO films were relatively stable in Ar but very unstable in H-2, CO and humid argon atmospheres. The aging rate increased rapidly as the humidity was increased from 2 to 20 relative humidity (RH) and became constant from 20 to 40 RH. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:596 / 598
页数:3
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