银纳米粒子在云母表面的二维组装及其表面增强拉曼效应  

Silver Nanoparticles Assembled on Mica and Its Surface-enhanced Raman Scattering Effect

作　　者：王连英[1] 纪小会[1] 张昕彤[1] 白玉白[1] 李铁津 支壮志[2] 孔祥贵[2] 刘益春[2] 

机构地区：[1]吉林大学化学学院,长春130023 [2]中国科学院长春光学机械与物理研究所,长春130021

出　　处：《高等学校化学学报》2002年第11期2169-2171,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 0 0 730 16 )资助

摘　　要：We present our work on direct assembly of Ag nanoparticulate film onto mica substrates without coupling agent, and investigate the potential application of this kind of assembly to SERS. Colloidal Ag is assembled onto mica substrates treated with MnCl 2 solution by electrostatic interaction, which forms a two-dimensional submonolayer. As shown by AFM study, the assembled process is size-selective, e.g., Ag particles assembled onto mica are more uniform than the mother colloid. The as-prepared Ag nanoparticulate films were shown to be active for surface-enhanced Raman scattering(SERS), as evidenced by the strongly enhanced Raman scattering from the self-assembled films(SAMs) of p-mercaptoaniline(p-MA).We present our work on direct assembly of Ag nanoparticulate film onto mica substrates without coupling agent, and investigate the potential application of this kind of assembly to SERS. Colloidal Ag is assembled onto mica substrates treated with MnCl 2 solution by electrostatic interaction, which forms a two-dimensional submonolayer. As shown by AFM study, the assembled process is size-selective, e.g., Ag particles assembled onto mica are more uniform than the mother colloid. The as-prepared Ag nanoparticulate films were shown to be active for surface-enhanced Raman scattering(SERS), as evidenced by the strongly enhanced Raman scattering from the self-assembled films(SAMs) of p-mercaptoaniline(p-MA).

关 键 词：二维组装 云母 银纳米粒子 静电相互作用 表面增强拉曼散射 表面组装 电子工业材料 

分 类 号：TN04[电子电信—物理电子学] O641.3[理学—物理化学]