The dye-sensitized solar cell (DSSC) is a third generation photovoltaic device that holds significant promise for the inexpensive conversion of solar energy to electrical energy. The scope of the present investigation is to develop the novel DSSC based on TiO₂ nanoparticles. The pure titanium dioxide (TiO₂) nanoparticles were synthesized by sol-gel method using titanium isopropoxide and 2-proponal as a precursor. Structural characteristics of synthesized pure TiO₂ nanoparticles were studied by X-ray diffraction analysis. UV spectrum was observed to predict the band gap energy. Fourier transform infrared spectrum was recorded to investigate the presence of chemical composition in synthesized pure TiO₂ nanoparticles. Morphology of the synthesized pure TiO₂ nanoparticles was visualized by scanning electron microscope. In order to enhance the photocatalytic activity of synthesized pure TiO₂ nanoparticles, the natural rich banana flower dye (Inflorescence dye) was added to pure TiO₂ nanoparticles, which were characterized by the XRD, UV-Visible and FTIR spectroscopic techniques as well as SEM. To predict the photocatalytic efficiency of inflorescence dyed TiO₂ nanoparticle, dry solar cell was prepared by doctor-blade technique. The calculated efficiency was obtained as 0.78%. Hence, the present investigation paves new way to develop the DSSC.

Keywords: Dye-Sensitized Solar Cell; TiO₂ Nanoparticle; Sol-Gel Method; Inflorescence Dye; Doctor Plate Technique; Characterization Techniques;