Abstract
The developments in the field of solar cells need to create a new material to improve the electrical properties, which leads to an increase in conversion efficiency. So, in this paper, nanocrystalline Tin dioxide (SnO2) as a thin film were synthesized and deposited on Titanium dioxide using chemical Spray pyrolysis thechniqe (CSPT). The mixed aqueous solution of Tin chloride (SnCl2) was prepeared at room temperature using magnatic stirr and sprayted on glass slide at 300 °C. Our results indicated that the prepared films are smooth, homogeneous and have good adhesion to the substrate. The results of structural properties revealed that the synthesis films are polycrystalline in nature with prefer orientations (110) and (101) for SnO2 and TiO2 respectively. The optical properties results using UV-Vis spectrophotometer analysis shows that high transmittance (grater than 70 %) and wide optical energy gap 3.97, 3.93 and 3.88 eV for TiO2, SnO2 and SnO2/TiO2 respectivly.
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