Chemistry Letters, Vol.37, No.9, 940-941, 2008
Enhanced Photocurrent in Nanocomposite of Dye-doped Titania Gel and Carbon Nanotubes
A photocurrent was observed in a nanocomposite electrode consisting of an unheated dye-doped titania gel and carbon nanotubes. The electrode was prepared by the electrophoresis of carbon nanotubes and a simple clip-coating with a titanium isopropoxide sol containing fluorescein on ITO-glass plates at room temperature. The shape of the photocurrent action spectra was similar to that of the absorption spectrum of fluorescein. The photocurrent was generated by excitation of the dye and was enhanced by the carbon nanotubes.