Optimization of light-diffracting photonic-crystals for high extraction efficiency LEDs

被引：119
作者：
David, Aurelien [1 ,2 ]
Benisty, Henri [1 ]
Weisbuch, Claude [2 ]
机构：
[1] Inst Opt, Lab Charles Fabry, Orsay, France
[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93101 USA
来源：
JOURNAL OF DISPLAY TECHNOLOGY | 2007年 / 3卷 / 02期
关键词：
light-emitting diodes (LEDs); light extraction; photonic crystal (PhC);
D O I：
10.1109/JDT.2007.896736
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Photonic-crystal (PhC)-assisted light extraction is a promising method for ultrahigh efficiency, planar light-emitting diodes (LEDs). However, modeling of such structures is challenging due to the variety of their parameters and the heavy computational burden they represent. We present a thorough theoretical discussion of the optimization of PhC LEDs, which relies both on approximate treatments and on rigorous 3-D calculations. Two material systems (GaAs and GaN) are investigated, leading to quite different optimal regimes. Notably, it appears that besides the properties of the 2-D PhC itself, design of the vertical structure plays a major role in optimization.
引用
收藏
页码：133 / 148
页数：16
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