Uniform arrays of gold nanoparticles with different surface roughness for surface enhanced Raman scattering  

作　　者：Yan Zhang Lian-Meng Wang En-Zhong Tan Shi-He Yang Li-Dong Li Lin Guo 

机构地区：[1]School of Chemistry and Environment, Beihang University [2]Department of Mathematics and Physics, Beijing Institute of Technology Petrochemical [3]Department of Chemistry, The Hongkong University of Science and Technology

出　　处：《Chinese Chemical Letters》2015年第11期1426-1430,共5页中国化学快报（英文版）

基　　金：financially supported by the National Basic Research Program of China(No.2010CB934700);the National Natural Science Foundation of China(Nos.51272012,21273001,51302208);Fundamental Research Funds for the Central Universities(No.YWF-14-HHXY-009);Specialized Research Fund for the Doctoral Program of Higher Education(No.20111102130006)

摘　　要：Uniform arrays of coarse and smooth gold nanoparticles with diameter about 130 nm were successfully synthesized through seed-mediated growth method, separately. Scanning and transmission electron microscopy （SEM and TEM） and X-ray diffraction （XRD） have been used to study the formation and structure of the nanocomposites. The high enhancement factor for surface-enhanced Raman scattering of coarse and smooth gold nanoparticles were estimated to be about 3.1 × 10^6 and 2.0 × 10^6, respectively. It is evident that the coarse gold nanostructures has higher influence factor than the smooth gold nanostructures. Therefore, these unique properties of the coarse Au nanoparticles appear to be very Dromising for applications as high-performance SERS subsrrares.Uniform arrays of coarse and smooth gold nanoparticles with diameter about 130 nm were successfully synthesized through seed-mediated growth method, separately. Scanning and transmission electron microscopy （SEM and TEM） and X-ray diffraction （XRD） have been used to study the formation and structure of the nanocomposites. The high enhancement factor for surface-enhanced Raman scattering of coarse and smooth gold nanoparticles were estimated to be about 3.1 × 10^6 and 2.0 × 10^6, respectively. It is evident that the coarse gold nanostructures has higher influence factor than the smooth gold nanostructures. Therefore, these unique properties of the coarse Au nanoparticles appear to be very Dromising for applications as high-performance SERS subsrrares.

关 键 词：NanoparticlesDifferent RoughnessSERS 

分 类 号：TQ131.23[化学工程—无机化工] TB383.1[一般工业技术—材料科学与工程]