Perforated nanocap array： Facile fabrication process and efficient surface enhanced Raman scattering with fluorescence suppression

Recently, individual reduced-symmetry metal nanostructures and their plasmonic properties have been studied extensively. However, little attention has been paid to the approach to fabricating ordered reduced-symmetry metal nanostructure arrays. In this paper, a novel perforated silver nanocap array...

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Published in:Chinese physics B 2013-04, Vol.22 (4), p.415-419
Main Author: 王军 黄丽清 童慧敏 翟立鹏 袁林 赵丽华 张薇薇 单冬至 郝爱文 冯雪红
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Language:English
Subjects:
Aluminum oxide
Anodizing
Arrays
Fluorescence
Hydroxyapatite
Nanostructure
Raman scattering
Scanning electron microscopy
SERS活性
Silver
光抑制
制作工艺
穿孔
纳米结构
表面增强拉曼散射
阳极氧化铝模板
阵列
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creator 王军 黄丽清 童慧敏 翟立鹏 袁林 赵丽华 张薇薇 单冬至 郝爱文 冯雪红
description Recently, individual reduced-symmetry metal nanostructures and their plasmonic properties have been studied extensively. However, little attention has been paid to the approach to fabricating ordered reduced-symmetry metal nanostructure arrays. In this paper, a novel perforated silver nanocap array with high surface-enhanced Raman scattering （SERS） activity and fluorescence suppression is reported. The array is fabricated by electron beam evaporating Ag onto the perforated barrier layer side of a hard anodization （HA） anodic aluminum oxide （AAO） template. The morphology and optical property of the perforated silver nanocap array are characterized by an atomic force microscope （AFM）, a scanning electron microscope （SEM）, and absorption spectra. The results of SERS measurements reveal that the perforated silver nanocap array offers high SERS activity and fluorescence suppression compared with an imperforated silver nanocap array.
doi_str_mv 10.1088/1674-1056/22/4/047301
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subjects Aluminum oxide
Anodizing
Arrays
Fluorescence
Hydroxyapatite
Nanostructure
Raman scattering
Scanning electron microscopy
SERS活性
Silver
光抑制
制作工艺
穿孔
纳米结构
表面增强拉曼散射
阳极氧化铝模板
阵列
title Perforated nanocap array： Facile fabrication process and efficient surface enhanced Raman scattering with fluorescence suppression
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