Photoluminescence Enhancement from Ag/ZnO Nanostructures

XU Tian-ning; LI Jia; LI Xiang; SUI Cheng-hua; WU Hui-zhen

doi:10.3788/fgxb20143504.0404

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Photoluminescence Enhancement from Ag/ZnO Nanostructures

更新时间：2020-08-12

- Photoluminescence Enhancement from Ag/ZnO Nanostructures
- Chinese Journal of Luminescence Vol. 35, Issue 4, Pages: 404-408(2014)
- 作者机构：
  
  1. 浙江工业大学之江学院理学系,浙江杭州,310024
  2. 浙江大学物理系硅材料国家重点实验室,浙江杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143504.0404
  CLC： O472+.3;O484.4
- Received：10 December 2013，
  
  Revised：28 January 2014，
  
  Published：03 April 2014
- 稿件说明：
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徐天宁, 李佳, 李翔等. Ag/ZnO纳米结构的荧光增强效应[J]. 发光学报, 2014,35(4): 404-408

XU Tian-ning, LI Jia, LI Xiang etc. Photoluminescence Enhancement from Ag/ZnO Nanostructures[J]. Chinese Journal of Luminescence, 2014,35(4): 404-408
徐天宁, 李佳, 李翔等. Ag/ZnO纳米结构的荧光增强效应[J]. 发光学报, 2014,35(4): 404-408 DOI： 10.3788/fgxb20143504.0404.

XU Tian-ning, LI Jia, LI Xiang etc. Photoluminescence Enhancement from Ag/ZnO Nanostructures[J]. Chinese Journal of Luminescence, 2014,35(4): 404-408 DOI： 10.3788/fgxb20143504.0404.

摘要

利用化学合成方法制备了Ag纳米线和ZnO量子点。对这两种纳米结构的表面形貌、晶体结构和光学性质分别进行了研究。结果表明：Ag纳米线和ZnO量子点均为单晶结构，平均直径分别为160 nm和5 nm左右。将Ag纳米线混入ZnO量子点可以使其紫外荧光显著增强，其中位于345 nm和383 nm 的荧光分别增强30倍和12倍。这与Ag纳米线和ZnO量子点混合体系的局域表面等离子体共振耦合吸收峰位相一致，说明该体系存在两种共振耦合模式。该研究结果为将来开发ZnO基纳米发光器件提供了一条新的途径。

Abstract

Ag nanowires and ZnO quantum dots were fabricated by chemical methods. The surface morphologies

structures and optical properties were investigated. It is found that both Ag nanowires and ZnO quantum dots exhibit single crystal structure with average diameters of 160 nm and 5 nm

respectively. The enhanced ultraviolet photoluminscence was observed from ZnO quantum dots after mixed with Ag nanowires. The enhancement ratio is 30-fold for emission at 345 nm and 12-fold for that at 383 nm. These enhancement emission positions coincide with the localized surface plasmon resonant absorption peaks of Ag nanowires

which indicate that there are two localized surface plasmon resonant modes in Ag nanowires. This work may give a new approach to design ZnO based nano light-emitting devices.

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references

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