Theoretical analysis on light-extraction efficiency of organic light-emitting diodes using FDTD and mode-expansion methods

被引:165
作者
Chutinan, A [1 ]
Ishihara, K [1 ]
Asano, T [1 ]
Fujita, M [1 ]
Noda, S [1 ]
机构
[1] Kyoto Univ, Dept Elect Sci & Engn, Nishikyo Ku, Kyoto 6158510, Japan
关键词
organic light-emitting diode; FDTD; mode-expansion method;
D O I
10.1016/j.orgel.2004.12.001
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report a theoretical analysis on light-extraction efficiency of the organic light-emitting diodes. We utilize both a numerical method such as the finite-difference time-domain method and an analytic method such as the mode-expansion method. The results of both methods are compared to confirm the accuracy of the results. It is found that even though the refractive index contrast between the indium-tin-oxide (ITO) anode and the glass substrate is as small as 0.5, more than 40% of emitted light power is trapped in the ITO layer. (c) 2004 Elsevier B.V. All rights reserved..
引用
收藏
页码:3 / 9
页数:7
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