Effect of doping concentration of Dy³⁺ions on Ba₃Ca₂Ti₂O₉ - synthesis, structural and optical characteristics

Ba₃Ca₂Ti₂O₉ doped with Dy³⁺ ions is cultured by single step Solid state synthesis approach. The structural, optical and absorption properties are assessed from UV-Vis spectroscopy, photoluminescence spectroscopy (PL) and X-ray diffraction (XRD) characteristic studies, respectively. The ⁴F_9/2→⁶H_15/2 transition of Dy³⁺ ion effect strong emission in the visible region is observed under 328 nm excitation. The visible light-emitting phosphorescence originating from the characteristic transitions in Dy³⁺ rare earth elements is inferred from the photoluminescence spectra. The developed phosphor composition demonstrates promising luminescence properties on account of the efficient energy transfer from the host matrix to the luminescence center. It is also surmised that the color coordinates of the sample material formed in the blue region attribute to the CIE color coordinates and color purity. The resultant outcome is suggestive that the studied compounds are promising material for the visible light-emitting diodes and solid state laser applications.