Development of Eu-Doped High Photoluminescence White Light Phosphor Technology for Industrial Production

Europium-doped phosphors, including CaTiO 3 (red, R), Ca 2 MgSi 2 O 7 (green, G), and BaMgAl 10 O 17 (blue, B), with varying concentrations of Eu 2 O 3, were prepared using the solid-state reaction method. The morphological characteristics, crystal structures, and luminescence emission properties of the R, G, and B phosphors were investigated. The CIE chromaticity coordinates for CaTiO 3:0.085 Eu 3+, Ca 2 MgSi 2 O 7:0.025 Eu 2+, and BaMgAl 10 O 17:0.06 Eu 2+ phosphors were located at ( x = 0.343, y = 0.618), ( x = 0.285, y = 0.547), and ( x = 0.153, y = 0.938), corresponding to bright red, green, and blue colors, respectively. Additionally, a white light-emitting phosphor was successfully fabricated with the molar ratio of 40:5:1 for [CaTiO 3:0.085 Eu 3+ ]/[Ca 2 MgSi 2 O 7:0.025 Eu 2+ ]/[BaMgAl 10 O 17:0.06 Eu 2+ ]. The CIE chromaticity coordinates of the white light-emitting phosphor were (0.325, 0.291), located in the vicinity of the pure white light coordinates ([0.33, 0.33]).