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Abstract
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A TiO2@ZnAl-layered double hydroxide nanocomposite was prepared by the co-precipitation method;
then, the product was calcined in order to obtain the TiO2@MMO nanocomposite. The products were
characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric
analysis (TGA), Fourier transmission infrared spectroscopy (FT-IR) technique, and UV-vis diffuse
reflectance spectra (DRS). The resulting material was employed as a photoanode whose high conversion
efficiency, h, in dye-sensitized solar cells (DSSCs) in comparison with ZnAl-layered double hydroxide was
attributed to the enlargement of the surface area by the nanosize plates and increased adsorption of the
dye by TiO2, which was placed on the nanoplate. It was found that decrease in the thickness of the film
(4.72 mm) led to increase in the open-circuit voltage (Voc), decrease in the recombination rate, and
improvement in the efficiency of the dye sensitized solar cell.
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