Abstract
Spherical shape nanoparticles of indium oxide (In2O3) has been synthesized by simple and cost effective sol gel method with indium nitrate hydrate as a precursor. The nanoparticles were characterized by X-ray diffraction, Fourier transform infra red spectroscopy (FTIR) and transmission electron microscopy (TEM). Morphological observations showed a uniform size distribution of spherical particles. From TEM, spherical particles size was found to vary from 17 to 23 nm. The most number of the nanoparticles out of total were 17 nm in size. The absorption spectra in ultraviolet region of In2O3 showed optical band gap of 3.6 eV. FTIR study reveals that the nanoparticles are single phase cubic structure of In2O3. Photo-luminescence spectrum at room temperature showed peak at 347 nm in ultraviolet region.
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