| 组装阵列中耦联剂对表面增强拉曼光谱的影响 |
| |
| 引用本文： | 周耀国,李晓伟,郑军伟,顾仁敖.组装阵列中耦联剂对表面增强拉曼光谱的影响[J].光散射学报,2003,15(4):259-263. |
| |
| 作者姓名： | 周耀国 李晓伟 郑军伟 顾仁敖 |
| |
| 作者单位： | 苏州大学化学系,苏州,215006 |
| |
| 基金项目： | 国家自然科学基金(批准号:20073028和20273045)，江苏省教育委员会现代光学开放实验室资助。 |
| |
| 摘 要： | 利用自组装技术,将不同浓度比例的对巯基苯胺和N,N'-二苯基硫脲为功能耦联分子,在光滑银基底表面组装不同表面密度的二维银纳米粒子阵列。通过对组装阵列和粗糙银表面耦联剂分子的表面增强拉曼光谱比较,阵列中对巯基苯胺分子拉曼信号得到了明显的增强,但只有微弱的N,N'-二苯基硫脲的拉曼增强信号,说明在这种组装阵列中得到的拉曼散射增强主要来自于银纳米粒子和光滑银表面之间。
|
| 关 键 词： | 自组装 银粒子 对巯基苯胺 N N'-二苯基硫脲 表面增强拉曼散射 |
| 文章编号： | 1004-5929(2003)04-0259-05 |
| 收稿时间： | 2003/7/22 |
| 修稿时间： | 2003年7月22日 |
Effect of Coupling Molecules on Its Surface-enhanced Raman Scattering |
| |
| ZHOU Yao-guo,LI Xiao-wei,ZHENG Jun-wei,GU Ren-ao.Effect of Coupling Molecules on Its Surface-enhanced Raman Scattering[J].Chinese Journal of Light Scattering,2003,15(4):259-263. |
| |
| Authors: | ZHOU Yao-guo LI Xiao-wei ZHENG Jun-wei GU Ren-ao |
| |
| Institution: | ZHOU Yao-guo,LI Xiao-wei,ZHENG Jun-wei,GU Ren-ao~* |
| |
| Abstract: | Different surface density of silver nanoparticles have been assembled on the smooth silver surface by adjusting the ratio of 4-aminothiophenol and N,N'-diphenylthiourea as coupling molecules. When 4-aminothiophenol and N,N'-diphenylthiourea coadsorbed on a roughened silver surface, both of their Raman signals are greatly enhanced. Only SERS of 4-aminothiophenol has clearly observed in assemblies and Raman signals of N,N'-diphenylthiourea have weakly enhanced, which suggest that in such assembly, only the molecules located between the silver surface and silver particles, whose Raman signals can be greatly enhanced. |
| |
| Keywords: | Self-Assembly Silver Particle 4-Aminothiophenol N N'-diphenylthiourea Surface-enhanced Raman Scattering |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
