Publications [#62918] of Tuan Vo-Dinh

Papers Published

  1. Ibrahim, A. and Oldham, P.B. and Stokes, D.L. and Vo-Dinh, T., Determination of enhancement factors for surface-enhanced FT-Raman spectroscopy on gold and silver surfaces, J. Raman Spectrosc. (UK), vol. 27 no. 12 (1996), pp. 887 - 91
    (last updated on 2007/04/14)

    Abstract:
    The combination of surface-enhanced Raman spectroscopy (SERS) with near-infrared (NIR) excitation should be of considerable benefit for trace detection of biological and environmental samples. Enhancement factors for SERS of p-aminobenzoic acid (PABA) on silver/alumina, silver island, gold/alumina and gold island surfaces were determined using unenhanced FT-Raman spectra of PABA on glass and glass/alumina surfaces as references. The silver/alumina substrate provided the greatest enhancement factor, followed by silver island, gold/alumina and gold island substrates, respectively. An enhancement factor in excess of 106 for PABA on a silver/alumina substrate compares favourably with literature reports of similar systems at shorter wavelengths

    Keywords:
    organic compounds;surface enhanced Raman scattering;