金纳米粒子簇的制备及表面增强拉曼光谱  

Preparation and Surface-enhanced Raman Scattering( SERS)of Single Au Nanodot

作　　者：冯微[1] 王博蔚[2] 郑艳[1] 姜洋[1] FENG Wei;WANG Bowei;ZHENG Yan;JIANG Yang(China-Japan Union Hospital of Jilin University,Changchun 130012,China;The Second Hospital of Jilin University,Changchun 130021,China)

机构地区：[1]吉林大学中日联谊医院,长春130012 [2]吉林大学第二医院,长春130021

出　　处：《高等学校化学学报》2018年第9期1875-1880,共6页Chemical Journal of Chinese Universities

基　　金：吉林省教育厅项目(批准号:2016449);吉林省科技厅国际合作项目(批准号:20160414047GH);吉林省经济结构战略调整引导资金项目(批准号:2015Y032)资助~~

摘　　要：建立了一种简单新颖的表面增强拉曼散射(SERS)基底制备方法.首先根据激光光束直径大小制备了与其相匹配的胶体微球阵列模板,再对模板进行等离子体刻蚀,然后采用金蒸汽进行气相沉积,最后将胶体微球剥离其基板,在微球的表面得到"单"金纳米粒子簇.胶体微球为直径2.6μm的聚苯乙烯微球,金纳米粒子直径平均约为300 nm,采用原子力显微镜(AFM)和扫描电子显微镜(SEM)对其进行了表征,并测试了其SERS光谱.测试结果表明,金的拉曼增强因子能够达到10~6.A novel and simple approach that combines both the character of laser beam and the size of the sphere array template was designed and the SERS study was carried out on“single”Au nanodot.The Au nanodots were deposited on the polystyrene sphere with a diameter of 2.6μm.The nanodot has a diameter of ca.300 nm which was characterized by means of atomic force microscope(AFM)and scanning electron microscope(SEM).The Raman enhancement factor for Au is on the order of 10 6.

关 键 词：金纳米粒子簇 表面增强拉曼光谱 聚苯乙烯微球 

分 类 号：O614[理学—无机化学] O647[理学—化学]