Abstract
CuO/MgO nanocomposites (NCs) were synthesized by energy efficient sonochemical method using glucose as surfactant. The structural properties were carried out by means of Powder X-ray Diffraction (PXRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and Diffused Reflectance Spectra (DRS). In addition to this, Photoluminescence (PL), Electrical conductivity and Thermoluminescence (TL) properties were also discussed in detail. The diffraction peaks indicates the coexistence of CuO/MgO composite. PXRD studies revealed CuO and MgO exhibit monoclinic and cubic phases respectively. PL studies of the composites showed peaks at 478, 538, 593 and 714 nm upon excited at 431 nm wavelength. Among the composites, the highest PL intensity was recorded for 70:30 ratio of CuO/MgO. The CIE chromaticity coordinates and Correlated Color Temperature (CCT) results clearly evident that the optimized composites were quite useful for display applications. Enhanced electrical conductivity and dielectric properties were observed for 90:10 CuO/MgO NCs. The TL results clearly indicate, single prominent glow peak of composites recorded in the range of 114–120 °C along with shouldered peak at ∼150 °C. The Kinetics parameters (τ, S, b) and dosimetric properties of the composites were thoroughly investigated. A good conformity was obtained between the results obtained from various analysing methods. The present results addresses that CuO/MgO nanocomposite is a promising candidate for use as a radiation dosimeter.
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