This report describes the use of an efficient and convenient silver substrate in the development of surface‐enhanced near‐infrared Fourier transform (FT) Raman scattering as a useful analytical technique that compliments the bulk FT‐Raman method. The SERS‐active material, prepared in the form of solid silver powder by means of chemical precipitation, is particularly well suited for surface Raman enhancement in the near‐IR region. To demonstrate the unique features of surface‐enhanced FT‐Raman, a detailed spectroscopic study of the charge‐transfer donor molecule tetrathiafulvalene (TTF) adsorbed on the silver powder is also reported. The advantages of near‐IR FT‐SERS over bulk FT‐Raman include the ability to analyze dilute solution samples, the acquisition of Raman spectra for near‐IR fluorescent compounds and new vibrational information concerning the mixed‐valence behavior of surface‐bound TTF molecules.
ASJC Scopus subject areas
- Materials Science(all)