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首页> 外文期刊>Advanced materials for optics and electronics >Enhancement of Green Emission from InGaN/GaN Multiple Quantum Wells via Coupling to Surface Plasmons in a Two-Dimensional Silver Array
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Enhancement of Green Emission from InGaN/GaN Multiple Quantum Wells via Coupling to Surface Plasmons in a Two-Dimensional Silver Array

机译：通过耦合到二维银阵列中的表面等离激元，增强了来自InGaN / GaN多量子阱的绿色发射。

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摘要

A novel approach to enhancing the emission efficiency of InGaN/GaN multiple quantum wells via coupling to surface plasmons (SPs) in a periodic two-dimensional silver array is demonstrated. A higher internal quantum efficiency and a higher light extraction efficiency are simultaneously achieved by engraving an array of nanoholes into the p-GaN cladding layer, followed by partial filling with silver. By top excitation and collection from the top of the Ag-incorporated light emitting diodes (LEDs), a 2.8-fold enhancement in peak photoluminescence intensity is demonstrated. The proposed nanoengraving technique offers a practical approach to overcoming the limitation of the exponentially decayed SP field without sacrificing the thickness of the p-GaN layer and to controlling the effective coupling energy. The approach is feasible for high-power lighting applications.
机译：通过耦合到周期性二维银阵列中的表面等离子体激元（SP），提高InGaN / GaN多量子阱的发射效率的新颖方法得到了证明。通过将纳米孔阵列雕刻到p-GaN覆盖层中，然后部分填充银，可以同时实现更高的内部量子效率和更高的光提取效率。通过顶部激发和从结合有Ag的发光二极管（LED）的顶部进行收集，证明了峰值光致发光强度提高了2.8倍。所提出的纳米雕刻技术提供了一种实用的方法，可以在不牺牲p-GaN层厚度的情况下克服指数衰减的SP场的局限性并控制有效耦合能。该方法对于大功率照明应用是可行的。

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  • 来源
    《Advanced materials for optics and electronics》 |2011年第24期|p.4719-4723|共5页
  • 作者

    Cheng-Hsueh Lu; Chia-Chun Lan; Yen-Lin Lai; Yun-Li Li; Chuan-Pu Liu;

  • 作者单位

    Department of Materials Science and Engineering National Cheng Kung University Tainan 701, Taiwan, Center for Micro/Nano Science and Technology National Cheng Kung University Tainan 701, Taiwan Research Center for Energy Technology and Strategy National Cheng Kung University Tainan 701, Taiwan Advanced Optoelectronic Technology Center National Cheng Kung University Tainan 701, Taiwan;

    Department of Materials Science and Engineering National Cheng Kung University Tainan 701, Taiwan, Center for Micro/Nano Science and Technology National Cheng Kung University Tainan 701, Taiwan Research Center for Energy Technology and Strategy National Cheng Kung University Tainan 701, Taiwan Advanced Optoelectronic Technology Center National Cheng Kung University Tainan 701, Taiwan;

    Research Center,Genesis Photonics Incorporation, Tainan 741, Taiwan;

    Research Center,Genesis Photonics Incorporation, Tainan 741, Taiwan;

    Department of Materials Science and Engineering National Cheng Kung University Tainan 701, Taiwan, Center for Micro/Nano Science and Technology National Cheng Kung University Tainan 701, Taiwan Research Center for Energy Technology and Strategy National Cheng Kung University Tainan 701, Taiwan Advanced Optoelectronic Technology Center National Cheng Kung University Tainan 701, Taiwan;

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