Tunable luminous rare-earth ion doped Mg2Al4Si5O18 fluorescence material and preparation method thereof
A mg2al4si5o18, 2al4si5o18 technology, applied in the direction of luminescent materials, chemical instruments and methods, etc.
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[0023] Example 1
[0024] A kind of tunable luminescence rare earth ion doped Mg 2 Al 4 Si 5 O 18 Fluorescent material, the chemical formula of the fluorescent material is (Mg 1-x-y-z Ce x Tb y Eu z ) 2 Al 4 Si 5 O 18 , X, y, z are mole fractions, and the specific values are x=0.05, y=0.05, z=0.05;
[0025] The specific preparation method is: Weigh MgO according to the stoichiometric ratio: 6.85 g, Al 2 O 3 : 14.27g, SiO 2 : 21.03g, CeO 2 : 1.72g, Tb 4 O 7 : 1.87 grams, Eu 2 O 3 :1.76g, grind in an agate mortar, and then add the evenly mixed raw materials into the corundum crucible, in 95% N 2 / 5%H 2 Sintered at 1200°C for 20 hours in a reducing atmosphere, and after natural cooling, the product is ground in an agate mortar to obtain (Mg 0.85 Ce 0.05 Tb 0.05 Eu 0.05 ) 2 Al 4 Si 5 O 18 Fluorescent material. figure 2 Is the photoluminescence emission spectrum of this example, Figure 7 Middle 1 is the CIE color coordinate of the light generated by excitation of the fluorescent mate...
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[0026] Example 2
[0027] Example 2
[0028] A kind of tunable luminescence rare earth ion doped Mg 2 Al 4 Si 5 O 18 Fluorescent material, the chemical formula of the fluorescent material is (Mg 1-x-y-z Ce x Tb y Eu z ) 2 Al 4 Si 5 O 18 , X, y, z are mole fractions, and the specific values are x=0.05, y=0.10, z=0.05;
[0029] The specific preparation method is: Weigh MgO according to the stoichiometric ratio: 6.45 g, Al 2 O 3 : 14.27g, SiO 2 : 21.03g, CeO 2 : 1.72g, Tb 4 O 7 : 3.74 grams, Eu 2 O 3 :1.76g, grind in an agate mortar, and then add the evenly mixed raw materials into the corundum crucible, in 95% N 2 / 5%H 2 Sintered at 1500°C for 2 hours in a reducing atmosphere, and after natural cooling, the product is ground in an agate mortar to obtain (Mg 0.80 Ce 0.05 Tb 0.10 Eu 0.05 ) 2 Al 4 Si 5 O 18 Fluorescent material. image 3 Is the photoluminescence emission spectrum of this example, Figure 7 Middle 2 is the CIE color coordinate of the light generated by excitation of the ...
Example Embodiment
[0030] Example 3
[0031] A kind of tunable luminescence rare earth ion doped Mg 2 Al 4 Si 5 O 18 Fluorescent material, the chemical formula of the fluorescent material is (Mg 1-x-y-z Ce x Tb y Eu z ) 2 Al 4 Si 5 O 18 , X, y, z are mole fractions, and the specific values are x=0.05, y=0.20, z=0.05;
[0032] The specific preparation method is: Weigh MgO according to the stoichiometric ratio: 5.64 g, Al 2 O 3 : 14.27g, SiO 2 : 21.03g, CeO 2 : 1.72g, Tb 4 O 7 : 7.48 grams, Eu 2 O 3 :1.76g, grind in an agate mortar, and then add the evenly mixed raw materials into the corundum crucible, in 95% N 2 / 5%H 2 Sintered at 1400°C for 6 hours in a reducing atmosphere. After natural cooling, the product is ground in an agate mortar to obtain (Mg 0.70 Ce 0.05 Tb 0.20 Eu 0.05 ) 2 Al 4 Si 5 O 18 Fluorescent material. Figure 4 Is the photoluminescence emission spectrum of this example, Figure 7 Middle 3 is the CIE color coordinate of the light generated by excitation of the fluorescent material...
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