Long wavelength UV-excitated blue luminescent material, preparation thereof and application thereof
A blue-light luminescence and ultraviolet technology, applied in luminescent materials, chemical instruments and methods, electrical components, etc., can solve problems such as stability and growth temperature differences, co-doping difficulties, and changes in the photoelectric properties of the ZnOZnO system, achieving chemical and optical Stable performance, high purity of blue light color, and simple preparation process
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Embodiment 1
[0026] 1) Weigh 0.02mol CaCO 3 and 0.0005mol Eu 2 o 3 , so that it was dissolved in 40ml of 1.25mol / L HCl aqueous solution, and then ultrasonicated at 15-30°C for 10-20 minutes;
[0027] 2) Put the above mixed solution into an oven at 110°C and dry until powder is obtained;
[0028] 3) Grinding the powder obtained by drying above with 0.02mol ZnS at room temperature for 15-30 minutes to obtain the precursor;
[0029] 4) Put the above precursor into a 50ml crucible and seal it with a lid;
[0030] 5) Put the above-mentioned 50ml crucible into a 150ml crucible, and bury it with activated carbon;
[0031] 6) Put the crucible after burying the activated carbon into a muffle furnace and sinter at 800°C for 2 hours;
[0032] 7) Take out the sintered material and grind for 5-10 minutes to obtain the target product Zn x Ca y O:Eu, where x:y=1:1.
[0033] The XRD figure of gained sample (test condition is: voltage 40kV, electric current 40mA, scanning speed 4° / min) shows: sampl...
Embodiment 2
[0036] The difference between this embodiment and embodiment 1 is: the selected M metal compound is MgCO 3 , the rest of the content is the same as described in Example 1, so as to obtain the target product Zn x Mg y O:Eu, where x:y=1:1. The XRD analysis results and the fluorescence spectrum analysis results of the obtained sample are the same as those described in Example 1.
Embodiment 3
[0038] The difference between this embodiment and embodiment 1 is: the selected M metal compound is SrCO 3 , the rest of the content is the same as described in Example 1, so as to obtain the target product Zn x Sr y O:Eu, where x:y=1:1. The XRD analysis results and the fluorescence spectrum analysis results of the obtained sample are the same as those described in Example 1.
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