Improve angular dependence of emission intensity in top-emitting organic light-emitting devices by using curved surfaces as substrates

被引：0
作者：
Zhang, Yifan [1 ]
Yang, Tong [2 ]
Ou, Xiali [1 ]
Gao, Qiang [1 ]
机构：
[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, 2699 Qianjin St, Changchun 130012, Peoples R China
[2] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2016年 / 30卷 / 08期
关键词：
Top-emitting organic light-emitting devices; angular dependence of emission intensity; curved surface; OPTICAL TAMM STATES; METALLIC ELECTRODES; HIGH-EFFICIENCY; DIODES; CAVITY; EXTRACTION; ANODE;
D O I：
10.1142/S0217984916500949
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have demonstrated an effective way to suppress the viewing angle dependence of the emission intensity of top-emitting organic light-emitting devices (TOLEDs) by fabricating devices on curved surfaces. From this approach, curved light emission surface has been obtained and TOLEDs with curved surface exhibit a relatively dispersed light emission pattern. As a result, the variation of emission intensity with viewing angles can be relieved. In addition, we can almost observe the same luminance and efficiency in OLEDs with and without curved surface light emission.
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页数：6
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