金纳米粒子的图案化组装及表面增强拉曼光谱研究  

Patterned Assembly of Gold Nanoparticles and Its Surface-enhanced Raman Scattering

作　　者：赵宏[1] 周群[2] 李晓伟[2] 庄严[2] 张兴霞[2] 郑军伟[2] 

机构地区：[1]淮海工学院化学工程系,江苏222005 [2]苏州大学化学系,苏州215006

出　　处：《光散射学报》2005年第2期172-175,共4页The Journal of Light Scattering

基　　金：国家自然科学基金(20073028)和江苏省教委现代光学重点实验室基金

摘　　要：利用聚苯乙烯纳米粒子有序组装结构为模板,进行了金纳米粒子的图案化组装。金纳米粒子在聚苯乙烯纳米粒子底部自组装聚集,形成规则的“面包圈”结构。表面增强拉曼光谱表明,相对于随机分布的金纳米粒子而言,金纳米粒子组装结构具有聚焦电磁场作用,从而使吸附的对巯基苯甲酸的拉曼散射得以进一步增强。Gold nanoparticles were assembled in a patterned manner by using an assembly of polystylene nanoparticles as a template. A”doughnut”type assembled structure of gold nanoparticles was formed at the bottom of the polystyrene nanoparticles. Surface- enhanced Raman spectra demonstrate that, relative to the randomly distributed gold nanoparticles, the assembled structure of gold nanoparticles can focus the electromagnetic field, which results in a further enhancement for the Raman scattering of adsorbed mercaptobenzoic acid

关 键 词：金纳米粒子 聚苯乙烯纳米粒子 自组装 表面增强拉曼光谱 对巯基苯甲酸 

分 类 号：O657.37[理学—分析化学]