TO INVESTIGATE THE SYNTHESIS MECHANISM AND CHANGE IN OPTICAL PROPERTY BY VARYING DOPANT CONCENTRATION OF CHROMIUM (Cr2O3) INMgOBASEDCOMPOSITE NANOSTUFF

ABSTRACT

In the present world, Nano science in itself is a massive field for conducting research and bringing out interesting insights due to the superior behavioral traits exhibited by Nanoparticles. The properties associated with their dependencies on size are an excellent property that makes it different from other types of research. In this research paper, the Nano stuff (NP’s) structures of Cr₂O₃ doped MgO with varying dopant concentrations, i.e., 5%, 10%, 20% are manufactured prosperously by using the microwave treated co-precipitation mechanism where the mixture is calcinated at 600^oC for a total of 6 hours. The structure and morphology of the formed metal OxideNano stuff samples and calcined as synthesized samples has characterized by the diffraction through Powder-XRD (X-Ray), UV-visible spectroscopy, FTIR spectrum, Transmission electron micrographs signify that the metal OxideNano stuff sample are crystalline in nature and undergoes a grain size calculated by Debye Scherer’s method is 30 nm and investigated structure is face central cubic structure. The UV visible adsorption spectrum is procured to examine the optical (energy) band gap which is showing the shifting range from 236 eV to 238 eV in the Nano metal Oxide samples with variation of dopant concentration respectively. The Fourier transform IR spectrum of given samples disclose that the incorporation of Cr ion with the no. of oxidation state by replacing the position of Mg in MgOstructure with Metal OxideNano stuff at 484.9 cm^-1for Cr₂O₃and 633.3 cm^-1for MgO the observed peak at 868cm^-1_.

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