Fiber surface enhanced Raman scattering sensor based on patterned biphasic gold-silver nanoalloys
Fiber surface enhanced Raman scattering sensor based on patterned biphasic gold-silver nanoalloys
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DOI：
10.1016/j.cplett.2012.09.068
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发表时间：
2012-11-20
影响因子：
2.8
通讯作者：
Yang, Changxi
中科院分区：
文献类型：
--
作者：
Liu, Ting;Xiao, Xiaosheng;Yang, Changxi
我们首次利用一种简单有效的光化学共还原法制备了基于金银纳米合金的光纤表面增强拉曼散射传感器。纳米合金分为两相：位于光纤端部中心圆形区域的一相特别强调金的增强效应，而位于同心环形区域的另一相则更多地反映了银的高增强效应。基于双相金-银纳米合金的光纤Sers传感器结合了金和银的优势，具有重现性好、灵敏度高等特点。(c)2012爱思唯尔有限公司版权所有。
We have firstly demonstrated fiber surface enhanced Raman scattering (SERS) sensor based on gold-silver nanoalloys fabricated by a simple and effective photochemical co-reduction method. The nanoalloys are separated into two phases: one phase located in the central circular area of fiber end puts particular emphasis on showing the dispersibility of gold, while the other one in the concentric ring region reflects more on the high enhancement effect of silver. Combining superiorities of gold and silver, fiber SERS sensor based on the biphasic gold-silver nanoalloys shows good reproducibility and high sensitivity. (c) 2012 Elsevier B.V. All rights reserved.