Abstract
We used the solid-state reaction (SSR) method to make samarium oxide-doped SrTiO3 perovskite ceramic. We then put the synthesized samples through PXRD analysis to look at their structural properties. It is observed that the Sm-doped SrTiO3 exhibited a cubic phase, with no secondary phase resulting from Sm-doping. For a higher doping concentration (at 5 %) of Sm2O3, we slightly increased the particle size (from 30 nm to 33 nm). HR-SEM is used to study the morphology and nature of each sample. We examined the component composition of Sr, Ti, O, and Sm using the EDAX spectra and matched it with the stoichiometry ratio. FT-IR spectroscopy was carried out to analyze the presence of functional groups and chemical bonding in the samples. We studied the magnetic properties of the synthesized samples at room temperature using the VSM technique. The coercivity, retentivity, and saturation magnetization of SrTiO3 considerably increased with a higher doping concentration of Sm. We used UV diffuse reflectance spectroscopy to record the reflectance spectra and calculate the optical energy values. An increase in Sm-doping concentration red-shifted the absorption peaks. The photoluminescence spectra revealed that the samples exhibited a wide spectrum of colours. The proposed combination of nanomaterials is suitable to become an appropriate candidate for white LED applications.
Published Version
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