摘要
拉曼光谱是一种高效的检测工具,可广泛应用于单分子检测、化学分析和生物传感等方面。通过光刻法和电沉积法制备得到高度有序的微阵列拉曼衬底,用罗丹明6G作为探针分子,分别研究了阵列与非阵列衬底、金铜合金与金衬底的拉曼信号强度。此外,通过调控金铜电解液浓度的比例、外加电压和电解时间来调控金铜合金的形貌,成功制备了枝晶状的金铜合金微阵列拉曼衬底。经研究发现此衬底能有效的增强拉曼散射效应,可以检测到浓度为10^(-14) mol的罗丹明6G。
Raman spectroscopy is widely used in single-molecule detection,chemical analysis and biosensor.Highly ordered Au/Cu alloy micro-arrays surface enhanced Raman scattering（SERS）substrate has been prepared by using photolithography and electrochemical reaction self-assembly on Si pillar substrate.The SERS properties of substrate with arrays and no-arrays,Au/Cu alloy and pure Au are investigated by a Raman spectrometer.In addition,the morphology of Au/Cu alloy arrays on the substrate is controlled by adjusting the concentration mole ratio of HAuCl4 and CuCl2 electrolyte solution,applied voltage and reaction time,and dendrite SERS substrate was prepared successfully.The concentration of R6 Gas low as 10^（-14） mol can be detected by our SERS substrates.
作者
温馨
王哲哲
林林
冯卓宏
庄罗晴
郑志强
WEN Xin1 , WANG Zhezhe1,2,3 , LIN Lin1,2,3 , FENG Zhuohong1,2,3, ZHUANG Luoqing1,ZHENG Zhiqiang1,2,3(1. Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University, Fuzhou 350117, China; 2.Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou 350117, China; 3.Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Xiamen 361005,Chin)
出处
《功能材料》
EI
CAS
CSCD
北大核心
2018年第5期5076-5080,共5页
Journal of Functional Materials
基金
国家自然科学基金青年基金资助项目(51202033
11204039和51502037)
福建省自然科学基金资助项目(2015J01243
2016J01213和2017J01399)
福建省教育厅A类科技资助项目(JA13084)
