高等学校化学学报

• 研究论文 • 上一篇    下一篇

利用去湿现象制备具有SERS活性的银纳米粒子图案

宋薇, 朱迪夫, 李志士, 刘慧慧, 杨柏, 赵冰   

  1. 吉林大学超分子结构与材料国家重点实验室, 长春 130012
  • 收稿日期:2007-06-27 修回日期:1900-01-01 出版日期:2008-02-10 发布日期:2008-02-10
  • 通讯作者: 赵冰

Patterned SERS Active Substrate Fabricated by Dewetting of Silver Nanoparticles Solution

SONG Wei, ZHU Di-Fu, LI Zhi-Shi, LIU Hui-Hui, YANG Bai, ZHAO Bing*   

  1. State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
  • Received:2007-06-27 Revised:1900-01-01 Online:2008-02-10 Published:2008-02-10
  • Contact: ZHAO Bing

摘要: 构建了具有表面增强拉曼散射(SERS)活性的二维有序环状与盘状的银纳米粒子结构, 利用CTAB包覆银纳米粒子的氯仿溶液直接在图案化的金基底上进行去湿, 当改变银纳米粒子的浓度时可以得到不同的图案. 利用原子力显微镜(AFM)对其结构进行了表征, 以4-巯基吡啶作为探针分子, 采用表面增强拉曼成像技术研究了这种基底的SERS活性, 这将为SERS的研究开拓新的领域.

关键词: 去湿, 图案化, 银纳米粒子, 表面增强拉曼散射(SERS), 拉曼显微成像

Abstract: We present a simple and controlled method for direct fabrication of ordered 2D arrays of Surface-enhance Raman scattering(SERS) rings and disks substrate. Silver rings and disks are fabricated on patterned self-assembled monolayers on Au substrate by dewetting the solution of CTAB-coated silver nanoparticles in CHCl3. It is found that two different silver patterns assemblies are formed when the concentration of the silver nanoparticles in CHCl3 solution changes. We characterized the formation and structure of these two different silver patterns assemblies using contact mode atomic force microscopy. Surface enhanced Raman mapping of 4-MPY SAM on this novel SERS active substrate are also investigated.

Key words: Dewetting, Pattern, Ag nanopartile, Surface-enhance Raman scattering(SERS), Raman mapping

中图分类号: 

TrendMD: