Citation: Xue Qi, Dong Jian, Zhang Jun-Feng, Ding Jian-Fu, Ma Min. Surface Enhanced Raman Scattering on Silver Surface Roughened with Concentrated Nitric Acid and Its Applications[J]. Acta Physico-Chimica Sinica, ;1991, 7(06): 708-711. doi: 10.3866/PKU.WHXB19910614
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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.
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