Preparation of nano-structured Ag solid materials and application to surface-enhanced Raman scattering |
| |
Authors: | Zao Yi Yan Chen Shan-jun Chen Xiu-lan Tan Gao Niu Jiang-shan Luo Yong-jian Tang You-gen Yi |
| |
Affiliation: | (1) Institut des Mat?riaux Jean Rouxel (IMN), CNRS, Universit? de Nantes, 2 rue de la Houssini?re, BP 32229, 44322 Nantes cedex 3, France;(2) Shahid Bahonar University of Kerman, Kerman, Iran; |
| |
Abstract: | Silver nano-particles with average diameter of about 60 nm were compacted in a high-strength mold under different pressures at 523 K to produce nano-structured Ag solid materials. The structure and characteristic of the nano-structured Ag solid materials (NSS-Ag) were studied using X-ray diffraction (XRD), scanning electron microscope (SEM) and Raman spectrometer. The NSS-Ag could be used as highly efficient surface-enhanced Raman scattering (SERS) active substrates. The common probe molecules Rhodamine 6G (R6G, 1×10−10 mol/L) were used to test the SERS activity on these substrates at very low concentrations. It is found that the SERS enhancement ability is dependent on the density of NSS-Ag. When the relative density of NSS-Ag is 83.87%, the materials reveal great SERS signal. |
| |
Keywords: | nano-structured Ag solid material flow-levitation method relative density Rhodamine 6G surface-enhanced Raman scattering |
本文献已被 维普 SpringerLink 等数据库收录! |
|