Efficiency enhancement of infrared light emitting diodes by combination of photonic crystals and surface plasmons

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• 作者：Mengyao Li ; Honglou Zhen ; Youliang Jing ; Han Wang…
• 关键词：GaAs ; Light emitting diodes ; Photonic crystals ; Surface plasmonics
• 刊名：Optical and Quantum Electronics
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：48
• 期：2
• 全文大小：875 KB
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• 作者单位：Mengyao Li (1)
  Honglou Zhen (1)
  Youliang Jing (1)
  Han Wang (1)
  Ning Li (1)
  
  1. National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yutian Road, Shanghai, 200083, China
  
• 刊物主题：Optics, Optoelectronics, Plasmonics and Optical Devices; Electrical Engineering; Characterization and Evaluation of Materials; Computer Communication Networks;
• 出版者：Springer US
• ISSN：1572-817X

文摘

Efficiency of infrared quantum well light emitting diodes (LED) has been limited due to high refractive index and non-radiative recombination of LED materials. In this work, we designed two dimensional LED devices combined photonic crystal and surface plasmons and simulated internal quantum efficiency as well as light emitting efficiency using finite difference time domain method. Simulation result shows that the combination of photonic crystals and surface plasmon polarization enhances light emitting efficiency by five folds.