Enhanced optical output power of green light-emitting diodes by surface plasmon of gold nanoparticles

被引：145
作者：
Cho, Chu-Young [1 ]
Lee, Sang-Jun [1 ]
Song, Jung-Hoon [1 ]
Hong, Sang-Hyun [1 ]
Lee, Song-Mae [2 ]
Cho, Yong-Hoon [2 ]
Park, Seong-Ju [1 ]
机构：
[1] Gwangju Inst Sci & Technol, Sch Mat Sci & Engn, Kwangju 500712, South Korea
[2] Korea Adv Inst Sci & Technol, Dept Phys, Grad Sch Nanosci & Technol, Taejon 305701, South Korea
来源：
APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 05期
关键词：
QUANTUM-WELLS; PHOTOLUMINESCENCE;
D O I：
10.1063/1.3552968
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We demonstrate the surface plasmon (SP) enhanced green light-emitting diodes (LEDs). The Au nanoparticles were embedded in the p-GaN of LEDs. The photoluminescence and electroluminescence measurements showed improved optical properties of LEDs with Au nanoparticles due to an increase in the spontaneous emission rate by resonance coupling between the excitons in multiple quantum wells and localized surface plasmons in Au nanoparticles. The optical output power of SP-enhanced green LEDs with Au nanoparticles was increased by 86% without showing degradation of the electrical characteristics of LEDs compared to LEDs without Au nanoparticles. (c) 2011 American Institute of Physics. [doi: 10.1063/1.3552968]
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页数：3
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