Abstract
We present a novel photoelectrochromic (PEC) cell containing a polyaniline layer and a dye-sensitized nanocrystalline TiO 2 layer. Electrochromic thin films of polyaniline layers have been prepared by electrochemical deposition and by spin-coating a dispersion of a polyaniline lacquer. The influences of the preparing parameters on the micromorphologies of the polyaniline layers were investigated. Under illumination of about one sunlight intensity, this self-powered PEC cell can modulate its transmission, averaged over the whole visible spectral region. The structure-property relations of the photoelectrochromic cells are discussed.
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