Gold nanoparticles assembling on smooth silver spheres for surface-enhanced Raman spectroscopy |
| |
| Authors: | Xia Weiwei Sha Jian Fang Yanjun Lu Ren Luo Yafei Wang Yewu |
| |
| Institution: | Department of Physics and State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, People's Republic of China. |
| |
| Abstract: | A simple and cost-effective chemical method was introduced to assemble gold (Au) nanoparticles on smooth silver (Ag) spheres for realizing surface-enhanced Raman scattering (SERS) enhancement by the replacement reaction between chloroauric acid and Ag spheres. In addition, the Ag-Au core-shell spheres were fabricated when a certain amount of chloroauric acid was used in the reaction solution. We found that the Ag particles decorated with small Au nanoparticles demonstrated the strongest SERS enhancement, while Ag-Au core-shell spheres showed the weakest enhancement. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
