Inverted top-emitting organic light-emitting diodes using transparent conductive NiO electrode

被引：38
作者：
Park, SW
Choi, JM
Kim, E
Im, S [1 ]
机构：
[1] Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea
[2] Hongik Univ, Seoul 121791, South Korea
来源：
APPLIED SURFACE SCIENCE | 2005年 / 244卷 / 1-4期
关键词：
top-emitting organic light-emitting device (TE-OLED); semi-transparent NiO; thermally evaporated; bottom-emitting organic light-emitting device (BE-OLED);
D O I：
10.1016/j.apsusc.2004.10.099
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We report on a top-emitting organic light-emitting device (TE-OLED) using a thermally evaporated and semi-transparent NiO film as a top-electrode. Our TE-OLED was fabricated, basically taking the reverse sequence for the fabrication of a conventional bottom-emitting organic light-emitting device (BE-OLED). Since the resultant sheet resistance of our NiO was high (8 k Omega/square) and its transmittance was only 50%, the resulting luminance (similar to 150 cd/m(2)) and injection current (similar to 50 mA/cm(2)) of our TE-OLED were much inferior to those of the BE-OLED device. However, its top-emitting was clearly observable and is thus concluded that our TE-OLED using thermally evaporated NiO, is quite promising if the NiO is controlled to have lower sheet resistance than the present value. (c) 2004 Elsevier B.V. All rights reserved.
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页码：439 / 443
页数：5
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