Abstract
In this study, we fabricated white light–emitting phosphors by applying a 350-nm excitation wavelength to Eu2O3-doped [YBi0.1]VO4 (red), SrAl12O19 (green), and Sr3MgSi2O8 (blue) phosphors. The Eu3+-doped [YBi0.1]VO4 phosphor was synthesized using a high-temperature solid-state reaction method in an air environment, and the Eu2+-doped SrAl12O19 and Sr3MgSi2O8 phosphors were synthesized in a reducing environment. The morphological characteristics, crystal structures, and luminescence performance of the phosphors were investigated using X-ray diffraction (XRD), high resolution scanning electron microscopy (HR-SEM), ultra-high-resolution transmission electron microscopy (UHR-TEM), and photoluminescence emission (PL). The white light–emitting phosphor was successfully fabricated at the molar ratio of [Y0.8 Bi0.1Eu0.1]VO4:[Sr0.88Eu0.12]Al12O19:[Sr0.99Eu0.01]3MgSi2O8 phosphors of 1:1.5:1. Its Commission Internationale de l'Eclairage (CIE) chromaticity coordinates were (0.3422, 0.3398), which is close to the coordinates of pure white light at ([0.33, 0.33]).
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