The Fabrication and SERS Performance of Multi-layer Hollow Au-Ag Alloy Nano Urchins Structure-based SERS Fiber Probe  

作　　者：HAO Zhenbang TIAN Qihang CAO Shiyi HAN Xiaoyu ZHANG Jihong XIE Jun ZHAO Xiujian 

机构地区：[1]State Key Laboratory of Silicate Materials for Architectures(Wuhan University of Technology),Wuhan,430070,China [2]International School of Materials Science and Engineering,Wuhan University of Technology,Wuhan,430070,China [3]Hainan Research Institute of Wuhan University of Technology,Sanya,572100,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2023年第2期274-279,共6页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Project of Sanya Yazhou Bay Science and Technology City (No.SCKJ-JYRC-2022-44);the Opening Funding of the State Key Laboratory of Silicate Materials for Architecture (SySJJ2018-06);the Fundamental Research Funds for the Central Universities (WUT:2016VA096),China;the Research Program (No.S2634339)through a Grant Provided by the Ministry of SMEs and Startups。

摘　　要：Novel hollow Au Ag alloy nano urchins were synthesized via Ag seeds growth method,and self-assembly coated on the wall and end-tip of silica fiber for fiber probe fabrication.The nano urchins homogeneously distributed on fiber surface because of fiber silanization.The sizes and tip sharpness of the nano-urchins could be controlled by Ag seeds.The elements distribution analysis indicated there was high Ag content in tip-top for better surface enhance Raman scattering performance.The detectable concentration could be as low as 10-8 M using crystal violet molecules as analyte.Moreover,the fiber probes were stable in air,due to Au in the alloy.This fiber probe could be used for low content single molecular analysis.

关 键 词：surface enhanced raman spectroscopy hollow Au-Ag alloy nano urchins fiber probe 

分 类 号：TG146.31[一般工业技术—材料科学与工程] O657.37[金属学及工艺—金属材料]