SERS enhancement dependence on the diameter and aspect ratio of silver-nanowire array fabricated by anodic aluminium oxide template

被引：70

作者：

Du, Yabing ^{[1
]}

Shi, Lingfeng ^{[1
]}

He, Tingchao ^{[1
]}

Sun, Xianwen ^{[1
]}

Mo, Yujun ^{[1
]}

机构：

[1] Henan Univ, Inst Opt & Photoelect Technol, Coll Phys & Elect, Kaifeng 475004, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2008年 / 255卷 / 05期

基金：

美国国家科学基金会;

关键词：

Porous alumina; Silver nanowire; Antenna resonance; SERS;

D O I：

10.1016/j.apsusc.2008.06.140

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The regular and uniform array of silver-nanowire array with different diameters and aspect ratio has been produced by using the anodic aluminium oxide (AAO) template method. The enhancement dependences on diameter and aspect ratio have been studied by using 4-mercaptopyridine (4-Mpy) as a probing molecule. An optimum diameter (95 nm) of silver particle for maximum enhancement factor has been obtained at 632.8 nm excitation. And the enhancement factor increased with the aspect ratio of the silver nanowire. These experimental results have been analyzed with the related electromagnetic models. (C) 2008 Elsevier B. V. All rights reserved.

引用

页码：1901 / 1905

页数：5

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