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Zirconium-phosphate-based luminescent material, preparation method thereof, and application thereof

A luminescent material, zirconium phosphate technology, applied in the field of fluorescent materials, can solve the problems of poor color purity, poor chemical stability, low luminous efficiency, etc., and achieve the effects of adjustable luminous intensity, high luminous intensity, and simple preparation process

Inactive Publication Date: 2014-04-16
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, various inorganic light-emitting materials in commercial use have disadvantages such as low luminous efficiency, poor color purity, and poor chemical stability.

Method used

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  • Zirconium-phosphate-based luminescent material, preparation method thereof, and application thereof
  • Zirconium-phosphate-based luminescent material, preparation method thereof, and application thereof
  • Zirconium-phosphate-based luminescent material, preparation method thereof, and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] According to the chemical formula Sr 7 Zr(PO 4 ) 6 The stoichiometric ratio of each element in the SrCO 3 : 5.1671 g, ZrO 2 : 0.6161 g, NH 4 h 2 PO 4 : 3.451 g. Grind in an agate mortar and mix well. The uniformly mixed powder was calcined for the first time in an air atmosphere at a temperature of 350°C, kept for 2 hours, cooled to room temperature naturally, and then the samples were taken out. The powder calcined for the first time was fully ground again in an agate mortar, and the second sintering was carried out under an air atmosphere at a temperature of 1000 ° C, kept for 5 hours, and naturally cooled to room temperature. The previous process was repeated, and the final sintering was carried out again at a temperature of 1300° C., kept for 8 hours, and naturally cooled to room temperature to obtain the final target product.

[0042] figure 1 For the Sr prepared in this example 7 Zr(PO 4 ) 6 Comparison of the X-ray powder diffraction pattern of t...

Embodiment 2

[0045] According to the chemical formula Sr 6.65 Eu 0.35 Zr(PO 4 ) 6 The stoichiometric ratio of each element in the 2 o 3 : 0.308 g, SrCO 3 : 4.909 g, ZrO 2 : 0.6161 g, NH 4 h 2 PO 4 : 3.451 g. Grind in an agate mortar and mix well. The homogeneously mixed powder is calcined for the first time in an air atmosphere at a temperature of 350°C, kept for 2-10 hours, and the sample is taken out after cooling down to room temperature naturally. The powder calcined for the first time is fully ground again in an agate mortar, and the second sintering is carried out under an air atmosphere at a temperature of 1000 ° C, kept for 2-10 hours, and naturally cooled to room temperature. Repeat the previous process and carry out the final sintering again at a temperature of 1300°C, keep warm for 3~10h, and cool naturally to room temperature to obtain the final target product.

[0046] Figure 4 For the Sr prepared in this example 6.65 Eu 0.35 Zr(PO 4 ) 6 Excitation and emiss...

Embodiment 3

[0048] According to the chemical formula Sr 6.65 Eu 0.35 Zr(PO 4 ) 6 The stoichiometric ratio of each element in the 2 o 3 : 1.232 g, SrCO 3 : 4.134 g, ZrO 2 : 0.6161 g, NH 4 h 2 PO 4 : 3.451 g. Grind in an agate mortar and mix well. The homogeneously mixed powder is calcined for the first time in an air atmosphere at a temperature of 350°C, kept for 2-10 hours, and the sample is taken out after cooling down to room temperature naturally. The powder calcined for the first time is fully ground again in an agate mortar, and the second sintering is carried out under an air atmosphere at a temperature of 1000 ° C, kept for 2~10 hours, and naturally cooled to room temperature. Repeat the previous process and carry out the final sintering again at a temperature of 1300°C, keep warm for 3~10h, and cool naturally to room temperature to obtain the final target product.

[0049] Figure 5 For the Sr prepared in this example 5.6 Eu 1.4 Zr(PO 4 ) 6 Excitation and e...

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Abstract

The invention discloses a zirconium-phosphate-based luminescent material, a preparation method thereof, and an application thereof. The chemical formula of the luminescent material is M7-7xEu7xZr(PO4)6, wherein M is Sr<2+> or Ba<2+>, x is the dopant amount of Eu<3+>, and x is no smaller than 0 and no greater than 0.5. The luminescent material is prepared by using a high-temperature solid-phase method or a chemical solvent method. The luminescent material provided by the invention can be adopted as a fluorescent material with vacuum ultraviolet VUV and ultraviolet as excitation sources, and can also be used in light emitting diodes, displaying materials, three-primary-color fluorescent lamps, and field emission displays. The luminous intensity of the luminescent material is adjustable, the preparation technology of the luminescent material is simple, the operation is safe and convenient, and the raw materials are cheap and easy to obtain. The method is suitable for scaled productions. Generally, no three-waste is produced during a reaction process. Therefore, the invention assists in establishing a green, environment-friendly, low-energy-consumption, and high-benefit industry.

Description

technical field [0001] The invention relates to a zirconium phosphate-based luminescent material, a preparation method and an application thereof, in particular to a zirconium phosphate-based luminescent material doped with alkali metal ions, which belongs to the technical field of fluorescent materials. Background technique [0002] The rapid development of science and technology has greatly promoted the application of fluorescent materials in various fields: three-color fluorescent materials and white LEDs for traditional fluorescent lamps in the field of lighting; cathode ray tubes, plasma flat-panel TVs, and LED large-screen displays in the field of display and imaging; In the field of nuclear medicine, computer CT, SPECT, PET imaging, and luminescent materials continue to show their unique advantages. The State Council issued the "National Medium- and Long-Term Science and Technology Development Plan (2020)", in which large-size flat-panel displays are prioritized for d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/81H01L33/50H01J29/88
Inventor 黄彦林徐传艳李亚东韦之豪袁蓓玲
Owner SUZHOU UNIV
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