Surface treatment effects of indium-tin oxide in organic light-emitting diodes

被引：38

作者：

Jung, S

Park, NG ^{[1
]}

Kwak, MY

Kim, BO

Choi, KH

Cho, YJ

Kim, YK

Kim, YS

机构：

[1] Hongik Univ, Dept Chem Engn, Seoul 121791, South Korea

[2] Hongik Univ, Dept Sci, Seoul 121791, South Korea

[3] Hongik Univ, Res Inst Sci & Technol, Seoul 121791, South Korea

来源：

OPTICAL MATERIALS | 2003年 / 21卷 / 1-3期

关键词：

organic light-emitting diodes; organic electroluminescence devices; indium-tin oxide; polishing; annealing;

D O I：

10.1016/S0925-3467(02)00143-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effects of mechanically polished and annealed indium-tin oxide (ITO) substrate in tris-(8-hydroxyquinoline) aluminum (Alq3)-based light-emitting, diodes were studied. It was found that roughness and oxygen content at ITO surface were reduced after the mechanical polishing. The organic light-emitting diodes (OLEDs) fabricated on the polished ITO surface showed 10 times better electroluminescence and current injection than the OLEDs based on as-received ITO surface, due to the increase of smooth contact area between the ITO surface and organic layer. The nucleation of TPD on ITO shows different feature according to the surface condition of ITO. As a result, the mechanical polishing is an effective treatment to enhance the performance of the OLEDs. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：235 / 241

页数：7

共 15 条

[1] Effect of layered structures on the location of emissive regions in organic electroluminescent devices [J].