Light out-coupling efficiency in flexible organic light-emitting devices

被引：0
|
作者：
College of Physics Science and Technology, Central South University, Changsha, Hunan 410083, China [1 ]
不详 [2 ]
机构：
[1] College of Physics Science and Technology, Central South University, Changsha
[2] College of Materials Science and Engineering, Central South University, Changsha
来源：
Guangxue Xuebao | 2009年 / 10卷 / 2885-2891期
关键词：
Curvature; Flexible substrate; Geometric optics; Light out-coupling efficiency; Organic light emitting devices (OLED); Total reflection;
D O I：
10.3788/AOS20092910.2885
中图分类号：
学科分类号：
摘要：
Based on the geometrical optics model, the expression of flexible organic light emitting devices (FOLED)'s out-coupling efficiency was presented. The influence of substrate curvature and its thickness, and organic layer's refractive index on the performance of the FOLED's out-coupling efficiency was studied, and the variation of out-coupling efficiency between FOLED and plane organic light emitting display (OLED) are contrasted as well. The result shows that: the out-coupling efficiency is enhanced with increased substrate curvature and its thickness, but is reduced with increased organic layer's refractive index for outcurved substrate. The out-coupling efficiency is reduced with increased substrate curvature and thickness, and is also reduced with increased organic layer's refractive index for incurvated substrate. The out-coupling efficiency of OLED is reduced with increased organic layer's refractive index.
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页码：2885 / 2891
页数：6
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