Abstract
Titanium dioxide (TiO 2 ) nanoparticles were synthesized by chemical reduction route. The room temperature XRD pattern and micro-Raman spectra confirmed the formation of pure anatase TiO 2 nanoparticles. The Scanning electron micrograph revealed the formation of spherical shaped TiO2 nanoparticles. The crystallite size was estimated as 16nm and 12nm using Phonon confinement model (PCM) and Debye Scherrer formula, respectively. A facile method has been proposed for the preparation of TiO2 paste to obtain crack-free film. The TiO2 film was coated on ITO substrate by doctor blade technique and the film was sensitized with different natural dyes. The absorption properties of the dyes and dye anchored TiO2 films were analyzed by diffuse reflectance spectra (DRS). The dye sensitized solar cells were fabricated and the photovoltaic performance of the natural dyes sensitized solar cells was studied.
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