Abstract
This research describes a simple and straightforward combustion synthesis for SrY2O4:Dy3+ nanoparticles. The synthesis of SrY2O4:Dy3+ was carried out with the use of urea as a fuel. Characterization techniques including as X-ray diffraction (XRD), transmission electron microscope (TEM), and scanning electron microscopy were used to investigate the effect of the synthesis procedure on the structural behaviour of the phosphor. The existence of orthorhombic structure is indicated by XRD. X-ray widening, Williamson–Hall (W–H) analysis, and a size–strain plot were used to examine the effect of crystallite sizes and lattice strain on the peak broadening of SrY2O4:Dy3+. Uniform deformation model (UDM), uniform stress deformation model (USDM), and uniform deformation energy density model (UDEDM), as well as the size–strain plot method, were used to determine strain, stress, and energy density parameters for all XRD peaks (SSP). W–H analysis, SSP, and TEM results all agreed on the mean particle sizes. To quantify visual properties, a photoluminescence spectroscopic method was implemented. Intense emission at 553 nm, characteristic of emission generated by the energy level transition of the Dy3+ ion, was detected in the emission spectra.
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Upadhyay, K., Thomas, S., Tharayil, A. et al. Green emitting dysprosium-activated SrY2O4 phosphor for tricolour white light-emitting diode application: structural analysis and luminescence behaviour. Chem. Pap. 77, 7775–7782 (2023). https://doi.org/10.1007/s11696-023-03059-w
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DOI: https://doi.org/10.1007/s11696-023-03059-w