摘要
本文利用罗丹明6G在银胶体粒子聚集点上的表面增强拉曼光谱的强度变化,采用逐点扫描获得拉曼光谱的"Mapping"方法,获得了不同的银胶体粒子聚集点对吸附的R6G表面增强拉曼光谱强度的影响。分析了"热点"对拉曼散射的增强的作用,表明"热点"的增强强度和纳米粒子的聚集程度有关。
Surface- enhanced Raman Spectrum （SERS） of R6G obtained by Mapping is studied in this paper. The different nanoparticle clusters have an affect on the intensity of SERS. The function of ＂Hot - Spots＂ to SERS is analyzed. The result showed that the enhanced intensity of ＂Hot - spots＂ is based on the number of nanoparticles in a cluster and the distance of nanoparticles.
出处
《光散射学报》
2008年第1期13-16,共4页
The Journal of Light Scattering
关键词
表面增强拉曼散射
罗丹明60
热点
Surface - enhanced raman scattering（SERS）
R6G
Hot - spots
