Efficient organic light-emitting diode using semitransparent silver as anode

被引:41
作者
Peng, HJ [1 ]
Zhu, XL [1 ]
Sun, JX [1 ]
Xie, ZL [1 ]
Xie, S [1 ]
Wong, M [1 ]
Kwok, HS [1 ]
机构
[1] Hong Kong Univ Sci & Technol, Dept Elect & Elect Engn, Ctr Display Res, Clear Water Bay, Hong Kong, Peoples R China
关键词
D O I
10.1063/1.2115076
中图分类号
O59 [应用物理学];
学科分类号
摘要
A semitransparent silver layer is investigated as the anode for organic light-emitting devices (OLEDs). By pretreating the silver layer in a CF4 plasma, hole injection into the hole-transport layer is greatly enhanced. A bottom-emitting OLED using the modified, semitransparent silver anode, demonstrates improved current density-voltage characteristics and a 20% higher external quantum efficiency, compared to a conventional OLED using indium tin oxide as an anode. The superior optical characteristics are attributed to a higher outcoupling efficiency in the microcavity structure. (C) 2005 American Institute of Physics.
引用
收藏
页码:1 / 3
页数:3
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