浸镀法制备SERS活性金衬底研究  

Study on SERS-active Au substrate Prepared by Immersion Plating

作　　者：张燕珂[1] 白莹[1] 张玲[1] 莫育俊[1] 

机构地区：[1]河南大学物理与信息光电子学院,河南开封475001

出　　处：《光子学报》2006年第8期1167-1170,共4页Acta Photonica Sinica

基　　金：国家自然科学基金资助(10274019)

摘　　要：研究了一种新的表面增强拉曼性金衬底的制备方法.该方法使用AuCl3水溶液,在金属铝表面浸镀金镀层从而制得金衬底.通过扫描电子显微镜观察到铝基底表面的金镀层呈岛状分布,且其平均粒径约为80nm.分别检测到吡啶和聚乙烯吡咯烷酮(PVP)两种探针分子在金衬底上的SERS谱.通过计算可知,该SERS活性金衬底的增强因子大于105.这种衬底在空气中放置一段时间后仍能保持较好的增强效果,说明它在空气中比较稳定.A sim Employing AuCl3 pie method, immersion plating, used Sol, Au nanoparticles were overlaid on to make SERS-active substrate was reported. the substrate of aluminum plate. SEM image for the Au substrate shows that the shape of Au aurum is island with the average diameter of 80nm. The SERS spectra of pyridine and poly（4-vinylpyridine） molecules on Au substrate were measured. Calculation results indicate that the SERS-active Au substrate made in this way has an enhancement factor of 105. And this substrate is fairly stable after being placed in air for one week.

关 键 词：表面增强拉曼光谱(SERS) 增强因子 活性金衬底 浸镀 

分 类 号：O657.37[理学—分析化学]