Ultrasonic-Assisted Synthesis of Monodisperse Ag Nanoparticles and Their Applications in Surface Enhanced Raman Scattering and Fluorescence Enhancement  

单分散银纳米颗粒的超声辅助制备及表面拉曼与荧光增强效应

作　　者：毕夏[1,2] 左健[1] 杨晴[1,2] 

机构地区：[1]中国科学技术大学合肥微尺度物质科学国家实验室(筹) [2]中国科学技术大学化学系,合肥230026

出　　处：《Chinese Journal of Chemical Physics》2012年第4期501-506,I0004,I0005,共8页化学物理学报（英文）

基　　金：V. ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China （No.21071136）, the National Basic Research Program of China （No.2010CB934700and No.2012CB932001）, the Research FUnd for the Doctoral Program of Higher Education of China （No.20103402110033） and Anhui Provincial Education Department （No.KJ2012ZD11）.

摘　　要：Monodisperse Ag nanoparticles with diameters of about 3.4 nm were synthesized by a facile ultrasonic synthetic route at room temperature with the reduction of borane-tert-butylamine in the presence of oleylamine （OAm） and oleic acid （OA）. The reaction parameters of time, the molar ratios of OAm to OA were studied, and it was found that these parameters played important roles in the morphology and size of the products. Meanwhile, surface enhanced Raman spectrum （SERS） property suggested the Ag nanoparticles exhibited high SERS effect on the model molecule Rhodamine 6G. And also, two-photon fluorescence images showed that the silver nanoparticles had high performances in fluorescence enhancement.

关 键 词：Monodisperse Ag nanoparticle Room temperature reaction Ultrasonicassisted synthesis Surface enhanced Raman spectrum Fluorescence enhancement 

分 类 号：O[理学]