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We propose a simple method of TiO 2 paste preparation from titania powder (Degussa) and organic binders (terpineol, ethyl cellulose) for making a continuous photoactive layer of a dye-sensitized solar cell (DSSC). The prepared paste was characterized by using thermogravimetric and X-ray diffraction methods for comparison with commercial paste (Solaronix). The TiO 2 layer parameters for applying and annealing were optimized by varying the layer thickness and using different masks. The surface morphology of annealed layers was controlled by optical microscopy. Before TiO 2 paste applying and after annealing, the conductive glass (fluorine-tin oxide – FTO) was treated by TiCl 4 hydrochloric acid solution. The structure of DSSCs were composed FTO-glass / TiO 2 layer sensitized Ruthenium complex ( N719 dye)/ iodide-based electrolyte / Pt counter electrode/ FTO glass. The DSSC photovoltaic characteristics were measured under AM 1.5G irradiation and demonstrated to be close to those of photoanodes based on the prepared and commercial pastes.

TiO2 paste for DSSC photoanode: preparation and optimization of application method

TiO₂ paste for DSSC photoanode: preparation and optimization of application method