Abstract
Barium tungstate (BaWO4) and dysprosium-doped barium tungstate (BaWO4:Dy) nanophosphors were synthesized using a chemical precipitation method. The crystal phase and structural parameters of the BaWO4 and BaWO4: Dy samples were assessed using X-ray diffraction (XRD) analysis. The morphological characteristics were examined by transmission electron microscopy (TEM). The optical properties were investigated using UV–visible diffuse reflectance spectra and photoluminescence spectroscopy. The structural analysis verifies that the samples possess a tetragonal scheelite structure. The introduction of Dy atoms through doping induces alterations in both the size and form of the particles. The optical band gap of the sample exhibits a decrease upon the introduction of Dy atoms into the BaWO4 sample,providing confirmation of the development of intermediate energy levels. The photoluminescence spectra within the visible region are analyzed, confirming its potential applications in optoelectronic systems.
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