The Fabrication and Detection Performance of High Sensitivity Au-Ag Alloy Nanostar/Paper Flexible Surface Enhanced Raman Spectroscopy Sensors

作     者：邓芷盈 WANG Tianyi CAO Shiyi ZHAO Yuan HAN Xiaoyu 张继红 谢俊 DENG Zhiying;WANG Tianyi;CAO Shiyi;ZHAO Yuan;HAN Xiaoyu;ZHANG Jihong;XIE Jun

作者机构：State Key Laboratory of Silicate Materials for Architectures Department of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Hainan Institute of Wuhan University of TechnologySanya 572000China International School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Hepu Research Center for Silicate Materials Industry TechnologyBeihai 536100China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2024年第39卷第2期

页      面：436-443页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070205[理学-凝聚态物理] 080202[工学-机械电子工程] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 070302[理学-分析化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 

基　　金：Funded by the Project of Sanya Yazhou Bay Science and Technology City(No.SCKJ-JYRC-2022-44) the Fundamental Research Funds for the Central Universities(WUT:2023Ⅲ007XXH) 

主　　题：surface-enhanced raman gold-silver alloy nanostars paper-based SERS sensor flexibility 

摘      要：Au-Ag alloy nanostars based flexible paper surface enhanced Raman spectroscopy sensors were fabricated through simple nanostar coating on regular office paper,and the surface enhanced Raman spectroscopy detection performances were investigated using crystal violet dye ***-Ag nanostars with sharp tips were synthesized via metal ions reduction *** electron microscope images,X-Ray diffraction pattern and energy dispersive spectroscopy elemental mapping confirmed the nanostar geometry and Au/Ag components of the ***-Vis-NIR absorption spectrum shows wide local surface plasmon resonance induced optical *** addition,finite-difference time-domain simulation shows much stronger electromagnetic field from nanostars than from sphere *** effect of coating layer on Raman signal intensities was discussed,and optimized 5-layer coating with best Raman signal was *** Au-Ag nanostatrs homogeneously distribute on paper fiber *** detection limit is 10-10 M,and the relationship between analyte concentrations and Raman signal intensities shows well linear,for potential quantitative *** calculated enhancement factor is 4.795×10^(6).The flexible paper surface enhanced Raman spectroscopy sensors could be applied for trace chemical and biology molecule detection.