Metal-coated colloidal crystal film as surface-enhanced Raman scattering substrate

Shoichi Kubo, Zhong Ze Gu, Donald A. Tryk, Yoshihisa Ohko, Osamu Sato, Akira Fujishima

    Research output: Contribution to journalArticlepeer-review

    53 Citations (Scopus)

    Abstract

    A dipping technique was developed to coat colloidal crystal films with metals. It was found that nanosized metallic particles could be simply immobilized onto the monodisperse spheres in the colloidal crystal film. As one of the application of such films, silver-coated colloidal crystal films were used as the surface-enhanced Raman scattering substrates. Very large enhancements were observed. In addition, it was also found that the enhancement factor varies very little from place to place on a particular substrate and even on different substrates. It can be anticipated that such substrates will find wide applications in Raman analysis and Raman imaging.

    Original languageEnglish
    Pages (from-to)5043-5046
    Number of pages4
    JournalLangmuir
    Volume18
    Issue number13
    DOIs
    Publication statusPublished - 2002 Jun 25

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Surfaces and Interfaces
    • Spectroscopy
    • Electrochemistry

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