Enhanced light output of GaN-based light-emitting diodes with ZnO nanorod arrays

被引:154
作者
An, Sung Jin [1 ,2 ]
Chae, Jee Hae [1 ,2 ]
Yi, Gyu-Chul [1 ,2 ]
Park, Gil H. [3 ]
机构
[1] Natl CRI Ctr Semicond Nanorods, Pohang 790784, Gyeongbuk, South Korea
[2] POSTECH, Dept Mat Sci & Engn, Pohang 790784, Gyeongbuk, South Korea
[3] Cent R&D Inst, Samsung Electromech, Suwon 443743, South Korea
关键词
D O I
10.1063/1.2903153
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report enhanced light output of GaN-based light-emitting diodes (LEDs) with vertically aligned ZnO nanorod arrays. The ZnO nanorod arrays were prepared on the top layer of GaN LEDs using catalyst-free metalorganic vapor phase epitaxy. Compared to conventional GaN LEDs, light output of GaN LEDs with the ZnO nanorod arrays increased up to 50% and 100% at applied currents of 20 and 50 mA, respectively. The source of the enhanced light output is also discussed. (C) 2008 American Institute of Physics.
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页数:3
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