Gold nanocrystal(NC)/silica films are synthesized through self-assembly of water-soluble gold nanocrystal micelles and silica by sol-gel processing. Absorption and transmission spectra show a strong surface plasmon resonance absorption peak at /spl sim/520 nm. Angular excitation spectra of surface plasmon show a steep dip in the reflectivity curve at /spl sim/65/spl deg/ depending on the thickness and refractive index of the gold NC/silica film. A potential SPR sensor with enhanced sensitivities can be realized based on these gold NC/silica films.


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    Title :

    Self-assembled, ordered gold nanocrystal/silica thin films for prism-based surface plasmon resonance sensors


    Contributors:
    Yang, K. (author) / O'Brien, M.J. (author) / Malloy, K.J. (author) / Sigmon, T.W. (author) / Fan, H. (author) / Lopez, G.P. (author) / Brinker, C.J. (author) / Sheik-Bahae, M. (author)

    Published in:

    Publication date :

    2005-01-01


    Size :

    1527181 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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