Acta Phys. -Chim. Sin. ›› 1991, Vol. 7 ›› Issue (06): 708-711.doi: 10.3866/PKU.WHXB19910614

• Note • Previous Articles     Next Articles

Surface Enhanced Raman Scattering on Silver Surface Roughened with Concentrated Nitric Acid and Its Applications

Xue Qi; Dong Jian; Zhang Jun-Feng; Ding Jian-Fu; Ma Min   

  1. Department of Chemistry, Nanjing University, Nanjing 210008
  • Received:1990-05-29 Revised:1990-12-30 Published:1991-12-15
  • Contact: Xue Qi

Abstract: A simple chemical method for preparing SERS active surfaces was developed by etching silver foils in concentrated HNO_3 solutions. The enhancement factors were calculated to be 10~6 as compared with solution spectra. The technique was applied to investigate the self-assembly of benzyl disulfide and adsorption orientation of thiophenol on silver surfaces. The results show that the HNO_3 roughened silver foil seems to be a more routinely preparable substrate system for SERS study.

Key words: Surface enhanced Raman scattering, Nitric acid etching, Silver