Effect of Annealing Time of TiO2 Thin Film Deposited by Spray Pyrolysis Deposition Method for Dye-Sensitized Solar Cell Application

Abstract

Titanium oxide (TiO2) thin films were deposited onto glass substrates by spray pyrolysis method. The thin films were deposited at three different annealing time; 1, 5 and 10 hours at 400°C. The structural and electrical properties were characterized using FESEM and I-V characteristic. Polycrystalline thin film with anatase crystal structure, as evidenced from X-ray diffraction pattern, was obtained with major reflection along (101). Electrical properties have been studied by means of electrical resistivity. The dark resistivity had been measured as a function of the film thickness, d. The resistivity of samples had been found to decrease with decreasing thickness. Thus, TiO2 is one of the most promising candidates for relatively low cost, simple manufacture for solar cell.