Localized Surface Plasmon Resonance Enhanced Electroluminescence from ZnO-based Light-emitting Diodes via Optimizing The Density of Sliver Nanoparticles

QIAO Qian; SHAN Chong-xin; LIU Juan-yi; TAO Li-fang; WANG Rui; ZHANG Cun-xi; LI Bing-hui; S

doi:10.3788/fgxb20153612.1363

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Localized Surface Plasmon Resonance Enhanced Electroluminescence from ZnO-based Light-emitting Diodes via Optimizing The Density of Sliver Nanoparticles

更新时间：2020-08-12

- Localized Surface Plasmon Resonance Enhanced Electroluminescence from ZnO-based Light-emitting Diodes via Optimizing The Density of Sliver Nanoparticles
- Chinese Journal of Luminescence Vol. 36, Issue 12, Pages: 1363-1369(2015)
- 作者机构：
  
  1. 发光学及应用国家重点实验室中国科学院长春光学精密机械与物理研究所,吉林长春,130033
  2. 浙江海洋学院船舶与海洋工程学院,浙江舟山,316022
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153612.1363
  CLC： TN383+.1
- Received：01 August 2015，
  
  Revised：20 September 2015，
  
  Published：10 December 2015
- 稿件说明：
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乔倩, 单崇新, 刘娟意等. 不同密度银纳米粒子对氧化锌基发光二极管发光的增强[J]. 发光学报, 2015,36(12): 1363-1369

QIAO Qian, SHAN Chong-xin, LIU Juan-yi etc. Localized Surface Plasmon Resonance Enhanced Electroluminescence from ZnO-based Light-emitting Diodes via Optimizing The Density of Sliver Nanoparticles[J]. Chinese Journal of Luminescence, 2015,36(12): 1363-1369
乔倩, 单崇新, 刘娟意等. 不同密度银纳米粒子对氧化锌基发光二极管发光的增强[J]. 发光学报, 2015,36(12): 1363-1369 DOI： 10.3788/fgxb20153612.1363.

QIAO Qian, SHAN Chong-xin, LIU Juan-yi etc. Localized Surface Plasmon Resonance Enhanced Electroluminescence from ZnO-based Light-emitting Diodes via Optimizing The Density of Sliver Nanoparticles[J]. Chinese Journal of Luminescence, 2015,36(12): 1363-1369 DOI： 10.3788/fgxb20153612.1363.

摘要

采用分子束外延法制备不同密度的银纳米粒子(Ag NPs)修饰的局域表面等离子体共振增强n-ZnO/i-ZnO/MgO/p-GaN 异质结发光二极管(LEDs)

并对其电学及光学性质进行表征。结果显示:LEDs中引入适当浓度的Ag NPs有利于Ag NPs局域表面等离子体激元与ZnO激子相耦合

可以显著提高器件的电致发光性能;随着Ag NPs浓度的增加

LEDs发光增强倍数先增大后减小

分析认为这是Ag NPs局域表面等离子体共振耦合增强过程和Ag NPs的消光过程两者之间相互博弈而导致的结果。

Abstract

Localized surface plasmon resonance enhanced n-ZnO/i-ZnO/MgO/p-GaN heterostructure light-emitting diodes (LEDs) with different sliver nanoparticles (Ag NPs) density were fabricated using molecular-beam epitaxy technique. It is found that the introduction of Ag NPs with suitable density is favorable for the effective resonant coupling between excitons in ZnO and the localized surface plasmons of Ag NPs

and thereby significantly improves the electroluminescence (EL) performance of the device. Note that the enhancement ratio increases firstly with the Ag NPs density and then decreases

and the variation is believed to be resulted from balance between the enhancement caused by the resonant coupling between the excitons in ZnO and the localized surface plasmons of Ag NPs and the extinction of the emitted photons by the Ag NPs.

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