Organic compound/metal oxide hybrid thin film prepared by the liquid phase deposition method

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  • DEKI Shigehito
    Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University
  • KODAMA Yasuaki
    Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University
  • MIZUHATA Minoru
    Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University

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Abstract

Organic compound/metal oxide composite thin films have been prepared by the liquid-phase deposition method in a one-step deposition technique. Organic dyes were added to the metal fluoro-complexes aqueous solution in order to entrap these dyes within the growing thin films of metal oxides, yielding organic dye/metal oxide hybrid materials. According to Raman spectroscopy and X-ray photoelectron spectroscopy, the formation of the materials in the case of cationic dyes can be explained by the electrostatic interaction between negative charge density at the fluorinated surface of metal oxides and the cationic dyes. UV-Vis results indicate that stilbazo and pyrocatechol violet (catecholate dye molecules) form a charge transfer complex with metal oxides through the catechol moiety with a bidentate linkage.

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