LUMINESCENCE PROPERTIES OF MAGNESIUM/ CADMIUM/ ZINC BORATE PHOSPHORS

Abstract

They have excellent luminous capabilities, which makes them viable candidates for applications in optoelectronics, lighting, and display technologies. Phosphors that are based on magnesium, cadmium, and zinc borates are good examples of these types of phosphors. This research investigates the synthesis of these borate-based materials, as well as their structural characterisation and photoluminescence activity. The phosphors were manufactured through the use of solid-state reaction techniques, and the crystalline structures of the phosphors were validated through the utilization of X-ray diffraction (XRD) research. The photoluminescence spectra showed that there were wide emission peaks in the visible area, and the exact emission wavelengths were determined by the dopants and the circumstances of the synthesis. Borates containing magnesium displayed significant blue emissions, borates containing zinc exhibited green to yellow luminescence, and borates containing cadmium exhibited orange-red emissions. These results can be ascribed to the electronic transitions that occur when rare-earth or transition metal dopants are present. It was determined through thermal stability and decay time tests that these materials are appropriate for use in applications that involve high temperatures. The processes of energy transfer, which are affected by the host lattice and dopants, were investigated in order to improve the luminescence conversion efficiency. The findings of this work highlight the potential of magnesium, cadmium, and zinc borates as phosphors that may be customized for use in sophisticated luminous devices. It has been advised that more research be conducted into the optimization of dopants and environmental stability in order to broaden their use in the future generation of technologies.