Abstract
The development and applications of phosphor ceramics have been driven by their ability to convert various forms of energy into visible light with high efficiency, durability, and specific color outputs. This study reports on synthesis of a novel series of solid solutions, PbLa2-2xTb2x(WO4)4 (0 ≤ x ≤ 0.5), using the solid-phase reaction method. The crystal structure, photoluminescence, excitation spectrum, decay kinetics, diffused reflectance spectra, and morphology of the compounds are characterized. The results reveal that the energy band gap has become even lower due to an increase in the concentration of the activator, and an absorption band of the Tb3+ ion is also observed at 380, 370, 354 and 342 nm, respectively; they correspond to the following quantum transitions 7F6 → 5D3, 7F6 → 5G6, 7F6 → 5L10 and 7F6 → 5L9, respectively. Our prepared PbLaTb(WO4) phosphor ceramics have a wide range of applications, from everyday lighting to advanced display technologies and medical devices, highlights their importance in modern technology.
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