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 ...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.展开更多
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)+1 种基金Fundamental Research Funds for the Central Universities(No.YWF-14-HHXY-009)Specialized Research Fund for the Doctoral Program of Higher Education(No.20111102130006)
文摘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.
