Abstract
The vertically aligned TiO2 nanorods were deposited on fluorine-doped tin oxide glass substrates by using the hydrothermal method at a different reaction temperature from 150 to 180 °C. The effects of reaction temperature on structural, morphological and optical properties of deposited TiO2 films have been investigated systematically. Further, the TiO2 films were used as a photoanode for efficient dye-sensitized solar cell (DSSC) application. The XRD patterns show the formation of the rutile phase with the tetragonal crystal structure. FESEM images revealed the increase in length and diameter of TiO2 nanorods with respect to the reaction temperature. Current density-voltage characteristics of DSSC showed the correlation between the photoconversion efficiency and reaction temperature. The maximum photoelectric conversion efficiency reached 1.79% along with short-circuit current density of 2.90 mA/cm2 and open-circuit potential of 765 mV for TiO2 film deposited at 180 °C.
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