5 July 1989 Surface Enhanced Raman Spectroscopy Of Thin Organic Films
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Abstract
Surface Enhanced Raman Spectroscopy (SERS) has been demonstrated to be a sensitive probe of the structure of molecules that are at or near the surface of an enhancing metal substrate. We have employed vapor-deposited silver island films as the enhancing medium to study the SERS effect in a variety of thin (<700 Å), vapor-deposited, multilayered organic films. Utilizing sequential depositions, we have intentionally positioned the SERS active metal islands at selected depths within the organic films. Our experiments were chosen to explore the "compatibility" of the silver depositions with several vapor-deposited organic species, to investigate the uniqueness of SERS as a position-sensitive probe in a multilayered system and to study possible chemical and/or physical interactions that may occur at the metal/organic and organic/organic interfaces. Our results indicate that SERS can be used to probe molecular structure at very discrete locations (e.g., near a solid/solid interface) in a multilayered system.
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Nancy S. Ferris, Nancy S. Ferris, Jon E. Littman, Jon E. Littman, } "Surface Enhanced Raman Spectroscopy Of Thin Organic Films", Proc. SPIE 1055, Raman Scattering, Luminescence and Spectroscopic Instrumentation in Technology, (5 July 1989); doi: 10.1117/12.951579; https://doi.org/10.1117/12.951579
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