Photoluminescence properties of SrAl2O4 compound synthesized with dysprosium and yttrium impurities

Stable photoluminescence is a phenomenon that is excited by irradiating high-energy light (usually ultraviolet light and sometimes beta rays) to a given substance. After the excitation stops, visible light is emitted from the excited electron states. The material will be done for a time that can be evaluated from seconds to several hours.In the present research, in the first stage, the synthesis of SrAl2O4 with stoichiometric percentages was investigated by solid-state reaction method at temperatures of 900, 1100, 1300, and 1500 ℃. Then, Dy2O3 and Y2O3 additives were added to the SrAl2O4 mixture with ratios of 1 to 4% by weight. The crystal structure and network of the SrAl2O4 host were determined by X-ray diffraction (XRD) analysis. The emission intensity of the mentioned factors was investigated by photoluminescence spectrophotometry (PL) with radiation at the wavelength of 237 nm, and the emission obtained in the wavelength range of 500-540 nm in the sample with different additives. Also, Fourier Transform Infrared Spectroscopy (FTIR) of the host composition and optimized samples with additives were also performed. The microstructure of the synthesized particles was examined using a scanning electron microscope (SEM).