低成本柔性Au-SERS基底的制备研究  

A Study of the Preparation of Low-cost Flexible Au-SERS Substrate

作　　者：刘风坤 朱化强[3] LIU Fengkun;ZHU Huaqiang

机构地区：[1]贵阳产业技术研究院,贵州贵阳550081 [2]贵阳职业技术学院,贵州贵阳550081 [3]贵州师范大学物理与电子科学学院,贵州贵阳550025

出　　处：《科技创新与应用》2022年第10期16-20,共5页Technology Innovation and Application

基　　金：贵州省科学技术基金资助项目(黔科合基础[2020]1Y203);贵州省教育厅职业教育科研项目(GZZJ-Z2020006)。

摘　　要：采用模板法与纳米压印技术,分别以多孔氧化铝模板的顶部和底部为印章,制备出高度有序的金纳米突起结构阵列和金纳米碗结构阵列。利用扫描电子显微镜对金纳米结构阵列进行表征分析,并研究Au的沉积厚度对金纳米结构阵列及SERS效应的影响。结果表明,通过该技术制备出的金纳米结构阵列活性基底高度有序、具有较强的SERS效应,且可通过控制Au的沉积厚度来调控纳米结构的尺寸,从而调控局域电磁场。同时,该制备工艺简单、成本低廉且能够实现厘米级的大面积制备,为SERS活性基底的低成本应用提供一条新途径。Highly ordered gold nano protrusion array and gold nano bowl array were prepared by template method and nanoimprint technology with the top and bottom of porous alumina template as stamp,respectively.The scanning electron microscopy(SEM)was used to characterize and analyze the Au nanostructure arrays,and the influence of Au deposition thickness on Au nanostructure arrays and SERS effect was studied.The results show that the SERS-active substrate prepared by this technology is highly ordered and has strong SERS effect,and the size of the nanostructure can be controlled by controlling the deposition thickness of Au,thereby regulating the local electromagnetic field.At the same time,the preparation process is simple and cost-efficient,thereby can realize large-area preparation of centimeter level,which provides a new way for low-cost applications of SERS active substrates.

关 键 词：模板 纳米压印技术 表面增强拉曼散射 柔性基底 印章 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]