Non-reflective black cathode in organic light-emitting diode

被引：44

作者：

Wong, FL

Fung, MK

Jiang, X

Lee, CS

Lee, ST ^{[1
]}

机构：

[1] City Univ Hong Kong, Dept Phys & Mat Sci, Ctr Super Diamond & Adv Thin Films, Kowloon, Hong Kong, Peoples R China

[2] Univ Siegen, Inst Mat Engn, D-57068 Siegen, Germany

[3] Frauenhofer Inst Surface Engn & Thin Films, D-38108 Braunschweig, Germany

来源：

THIN SOLID FILMS | 2004年 / 446卷 / 01期

关键词：

ambient; contrast; optical properties;

D O I：

10.1016/j.tsf.2003.10.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A black conductive electrode with a resistivity of 6.75 x 10(-4) Ohm cm was fabricated by doping silicon monoxide into aluminum by simple thermal evaporation. The relative optical reflectance of such electrode layers within the visible spectral range was between 0.12 and 0.05. The black electrode was incorporated in an organic light-emitting diode (OLED) by sequential deposition of alpha-napthylphenylbiphenyl diamine, tris-(8-hydroxyquinoline) aluminum and the black layer on indium-tin-oxide-coated glass substrates. The black layer reduced the reflection of ambient light entering the device and resulted in a significant increase of the OLED display contrast ratio. The electroluminescence properties of the device incorporating the black layer were investigated. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：143 / 146

页数：4

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