Abstract
A method was developed to prepare silver-doped sol-gel films for surface-enhanced Raman scattering (SERS) detection. The technique involves first doping silver ions as a silver ammine complex [Ag(NH3)2+] into a sol-gel matrix, followed by chemical reduction of the doped silver ions into the corresponding silver metal particles. The silver-doped sol-gel films coated on a glass substrate exhibit strong enhancement (24 000-fold) of Raman scattering from molecules adsorbed on the surface. Very stable SERS spectra of benzoic acid over a period of 48 h were obtained with the new silver substrate.
| Original language | English |
|---|---|
| Pages (from-to) | 635-639 |
| Number of pages | 5 |
| Journal | Journal of Raman Spectroscopy |
| Volume | 28 |
| Issue number | 8 |
| DOIs | |
| State | Published - 1997 |