Abstract
(In1−xFex)2O3 nanoparticles were prepared by freeze-drying an aqueous solution of indium acetate and iron acetate followed by heat treatment. The samples were characterized by high-resolution X-ray diffraction, transmission electron microscopy, Fourier transform infrared and UV–Vis diffuse reflectance spectroscopy. The x ≤ 0.12 nanoparticles were shown to be monophasic and crystallized with the bixbyite structure. Iron doping the In2O3 semiconductor reduced the lattice parameter, crystallite size, and optical bandgap.
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