ADSORPTION AND SURFACE-ENHANCED RAMAN OF DYES ON SILVER AND GOLD SOLS
ADSORPTION AND SURFACE-ENHANCED RAMAN OF DYES ON SILVER AND GOLD SOLS
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DOI：
10.1021/j100214a025
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发表时间：
1982-01-01
影响因子：
--
通讯作者：
MEISEL, D
中科院分区：
文献类型：
--
作者：
LEE, PC;MEISEL, D
研究了几种带负电荷的染料在银和金胶体颗粒表面的吸附。然后检查发现吸附在颗粒上的那些染料的拉曼散射的表面增强。高效的表面增强拉曼散射（Sers）观察到从碳菁染料在这两种溶胶。激发依赖性研究以及吸附研究证实了所获得的拉曼光谱的Sers性质。染料可能聚集吸附，并可能通过萘侧部分连接到表面。对于铜酞菁也观察到较低效率Sers。
Several negatively charged dyes were investigated fortheir possible adsorption on the surface of silver and gold colloidal particles. Those dyes that were found to adsorb on the particles were then checked for surface enhancement of Raman scattering. Highly efficient surface-enhanced Raman scattering (SERS) was observed from a carbocyanine dye in both sols. Excitation-dependence studies as well as adsorption studies confirm the SERS nature of the Raman spectra obtained. The dye is probably aggregated on adsorption and is probably attached through the naphthalene side moiety to the surface. Less efficient SERS was also observed for copper phthalocyanine.