【作者】 王祎； 王昱扬； 丛明； 徐抒平； 徐蔚青；

【Author】 WANG Yi;WANG Yu-yang;CONG Ming;XU Shu-ping;XU Wei-qing;State Key Laboratory for Supramolecular Structure and Materials,Institute of Theoretical Chemistry,Jilin University;

【机构】 吉林大学超分子结构与材料国家重点实验室；

【摘要】 利用多级周期结构阳极氧化铝(AAO)为模板,以PMMA复制多级结构,通过真空蒸镀的方法构筑多级结构银纳米阵列柔性SERS基底。蒸镀不同厚度银膜获得不同的SERS增强效果,以20nm厚度银膜下获得最优SERS信号。较高的灵敏度和重现性为该基底应用于污染物检测提供了必要的条件。另外,本研究中所获得的基底可以进行擦写式的反复使用,可以发展为SERS芯片。更多还原

【Abstract】 A hierarchical structural Ag nano crown array was fabricated via vacuum evaporation deposition Ag film on a patterned PMMA film which had the structure copied from a honeycomb like anodic aluminum oxide(AAO) template.This hierarchical Ag configuration was used for a flexible surface-enhanced Raman scattering(SERS) substrate.We adjusted the thickness of Ag film to achieve an optimized thickness of 20 nm.The high sensitivity and reproducibility enabled this SERS substrate to be applied to trace the contaminant and pollutants.Moreover,the hierarchical substrate in our study is re-usable,which could be fixed into a SERS chip to realize on chip detection.更多还原