Theoretical analysis of enhanced light output from a GaN light emitting diode with an embedded photonic crystal

被引：0
|
作者：
Wen Feng [1 ]
Liu Deming [1 ]
Huang Lirong [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelectron, Coll Opto Elect Sci & Engn, Wuhan 430074, Peoples R China
来源：
JOURNAL OF SEMICONDUCTORS | 2010年 / 31卷 / 10期
基金：
中国国家自然科学基金;
关键词：
photonic crystal; light emitting diode; finite-difference time-domain modeling;
D O I：
10.1088/1674-4926/31/10/104006
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The enhancement of the light output of an embedded photonic crystal light emitting diode is investigated based on the finite-difference time-domain modeling. The embedded photonic crystal ( PC) lattice type, multi-layer embedded PC, distance between the multiple quantum well and the embedded PC are studied. It is found that the embedded one dimensional PC can act as well as embedded two dimensional PCs. The emitted light flux in the up direction can be increased by a new kind of multi- layer embedded PC. Also, we show that the light output in the up direction for the LED with both surfaces and embedded PC could be as high as five times that of a conventional LED.
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页数：4
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