Study of Structural and Optical Properties of Fe2+ Doped Tin Oxide Nanoparticles

Abstract

Tin dioxide nanoparticles (SnO₂) were synthesized by a sol-gel method. And tin tetra chloride (SnCl₄) and ammonium hydroxide (NH₄OH) were used as the precursor. NH₄OH maintain the homogeneity and stoichiometry of solution through pH. The obtained powder subjected to calcination about 110^oC. The obtained samples are characterized by X-ray diffraction, Scanning electron microscope, Fourier transform infrared spectroscope and UV-Visible spectroscopy. From the characterizations it is confirmed that the tetragonal structure and the particles are small and nanosizes, The O-H stretching and C=C bending stretching with chemical compositions are analyzed. The improved conduction properties through lower bandgap and the results are further interpreted and discussed.