CN102604635B - Zirconium-phosphate-based luminescent material, preparation method thereof, and application thereof - Google Patents

Abstract

The invention discloses a zirconium phosphate-based luminescent material, a preparation method and an application thereof. The chemical formula of the luminescent material is M _7-7x Eu _7x Zr(PO ₄ ) ₆ , where M is one of Sr ²⁺ and Ba ²⁺ ; x is the doping amount of Eu ³⁺ , 0≤x≤0.5; The material is prepared by high-temperature solid phase method or chemical solution method. The luminescent material provided by the invention can be used not only as a fluorescent material with vacuum ultraviolet light VUV and ultraviolet light as excitation sources, but also as a light emitting diode, a display material, a three-color fluorescent lamp and a field emission display. The luminescent material has adjustable luminous intensity, simple preparation process, safe and convenient operation, cheap and easy-to-obtain raw materials, and is suitable for large-scale production. There is basically no industrial waste in the reaction process, and it is a green, low-energy, and high-efficiency industry.

Description

A zirconium phosphate-based luminescent material, its preparation method and its application

technical field

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

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 development, and inorganic light-emitting materials have become the key to realizing this technology. Various inorganic luminescent materials currently commercially available have disadvantages such as low luminous efficiency, poor color purity, and poor chemical stability. Therefore, it is of great significance to develop promising luminescent materials and continuously improve their performance.

With the development of new material systems, researchers have noticed that PO ₄ , ZrO ₂ and Zr(PO ₄ ) ₆ group composite ion luminescent centers can effectively absorb ultraviolet light and vacuum ultraviolet light, and effectively transfer energy to rare earth ions. For example: YPO ₄ :Eu ³⁺ produces high-efficiency red light emission under vacuum ultraviolet excitation, which can be used in plasma flat panel display red fluorescent materials; CaZr(PO ₄ ) ₂ :Tb ³⁺ has an emission peak at 543nm under excitation at 172nm, and can be used in PDP green fluorescent material. The excellent vacuum ultraviolet luminescent properties of zirconium phosphates have attracted widespread attention. Researchers from various countries have mainly carried out research on the luminescent properties of zirconium phosphate in addition to focusing on the fast ion conductor properties of zirconium phosphate. The development of multifunctional materials is an inevitable trend of future material development. Many materials are not only used in one field. For example, NaZr(PO ₄ ) ₃ is a good fast ion conductor material. At the same time, it has been doped with rare earth ions. The material is also a vacuum ultraviolet excited luminescent material with application potential. Therefore, the development of a new type of excellent luminescent material system with low cost of raw materials, simple preparation method, integration of multiple functions, and adjustable luminescence spectrum within a certain range has great practical significance for improving the level of independent intellectual property rights in my country and creating huge economic benefits.

Contents of the invention

The purpose of the present invention is to provide a zirconium phosphate-based luminescent material with adjustable luminous intensity, simple preparation process, and green environmental protection and its preparation method and application, adding a new category to the field, and promoting the wide application of inorganic luminescent materials .

In order to achieve the purpose of the above invention, the technical solution adopted in the present invention provides a zirconium phosphate-based luminescent material, its chemical formula is M _7-7x Eu _7x Zr(PO ₄ ) ₆ , wherein M is a divalent alkaline earth metal ion strontium ion One of Sr ²⁺ or barium ion Ba ²⁺ ; x is the doping amount of trivalent europium ion Eu ³⁺ , 0≤x≤0.5.

A method for preparing a zirconium phosphate-based luminescent material, using a high-temperature solid-phase method, comprising the following steps:

(1) Weigh the raw material according to the stoichiometric ratio of the corresponding elements in the chemical formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ , the raw material is a compound containing an alkali metal ion M , and M is a divalent alkaline earth metal ion strontium ion Sr ²⁺ or one of barium ions Ba ²⁺ , compounds containing europium ions Eu ³⁺ , zirconium dioxide and compounds containing phosphorus ions P ⁵⁺ , 0≤x≤0.5, ground and mixed uniformly to obtain a mixture;

(2) Put the mixture in an alumina crucible and synthesize it in a muffle furnace. The sintering temperature is 900-1500° C., the holding time is more than 5 hours, and a zirconium phosphate-based luminescent material is obtained after cooling.

A method for preparing a zirconium phosphate-based luminescent material, using a chemical solution method, comprising the following steps:

(1) Dissolve the compound containing europium ion Eu ³⁺ according to the stoichiometric ratio of the corresponding elements in the general formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ in dilute nitric acid solution or distilled water, and then add an appropriate amount of stoichiometric The complexing agent of the ratio complexes the europium ion Eu ³⁺ ; the molar ratio of the europium ion Eu ³⁺ to the complexing agent is 1:1; the complexing agent is citric acid or ethylenediaminetetraacetic acid;

(2) According to the stoichiometric ratio of corresponding elements in the general formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ , weigh zirconium oxychloride octahydrate, dissolve it in aqueous solution to obtain a transparent solution, and then add an appropriate amount of complexing agent in stoichiometric ratio Complexing zirconium ions; the molar ratio of zirconium ions to complexing agent is 1:2; the complexing agent is citric acid or ethylenediaminetetraacetic acid;

(3) Dissolve the compound containing alkali metal ion M in water or dilute nitric acid according to the stoichiometric ratio of the corresponding elements in the general formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ to obtain a transparent solution; M is divalent alkaline earth One of the metal ions strontium ions Sr ²⁺ or barium ions Ba ²⁺ ;

(4) Mix the solutions obtained in steps (1), (2) and (3), stir and mix evenly;

(5) adding phosphorus ion P ⁵⁺ compound containing stoichiometric ratio of corresponding elements in the general formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ to the mixed solution obtained in step ④, stirring to form a solution;

(6) drying the solution obtained in step (5) to form a gel, then heating to obtain an aerogel, and grinding the obtained aerogel to obtain a precursor powder;

(7) Place the precursor powder obtained in step (6) in an alumina crucible and synthesize it in a muffle furnace. First, raise the temperature to 200-500°C and keep it warm for more than 2 hours; continue to heat up to 800-1100°C , keep warm for more than 2 hours; finally raise the temperature to 1200-1400° C., keep warm for more than 3 hours; obtain a zirconium phosphate-based luminescent material after cooling.

The compound containing alkali metal ion M is one of M oxide, M carbonate, M nitrate, or a combination of more than one.

The compound containing europium ion Eu ³⁺ is one of europium oxide, europium nitrate, or a combination thereof.

The phosphorus-containing compound is one of ammonium dihydrogen phosphate or diammonium hydrogen phosphate, or a combination thereof.

The luminescent material is used as a fluorescent material with vacuum ultraviolet light VUV and ultraviolet light as excitation sources.

The luminescent material is used in light emitting diodes, display materials, tricolor fluorescent lamps or field emission displays.

The measurement results show that the characteristics of the zirconium phosphate-based luminescent material provided by the present invention are: when x = 0 in the general formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ , Sr ₇ Zr(PO ₄ ) ₆ is very Good self-activated luminescent material, the luminescence is broadband emission, the luminescence peak is around 470 nm, it has good absorption in the vacuum ultraviolet region and ultraviolet region, and can be used for vacuum ultraviolet or ultraviolet excitation luminescence; Ba ₇ Zr(PO ₄ ) _6. The luminescence peak is located at about 500 nm, and has good absorption in the vacuum ultraviolet or ultraviolet region, and can be used for vacuum ultraviolet or ultraviolet excitation to emit light;

When 0<x≤0.5 in the general formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ , as the concentration of Eu ³⁺ increases, the strongest luminescence peaks are located at 613nm, and the luminescence intensity is high, which can be applied as a good orange light material. Therefore, the zirconium phosphate-based luminescent material described in the present invention can be applied to light-emitting diodes, display materials, trichromatic fluorescent lamps and field emission displays.

The luminescent mechanism of the zirconium phosphate luminescent material of the present invention is mainly divided into the following two types:

1. When x=0 in the general formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ , the luminescence of Sr ₇ Zr(PO ₄ ) ₆ is a kind of self-trapping exciton luminescent material, based on PO ₄ and ZrPO ₄ As a luminescent center, it has broadband absorption at 150nm and emits blue light with a peak at around 470nm at room temperature.

2. When 0<x≤0.5 in the general formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ , M _7-7x Eu _7x Zr(PO ₄ ) ₆ is a luminescent material obtained by doping Eu ³⁺ , and the luminescent center The energy is transferred from PO ₄ and Zr(PO ₄ ) ₆ to Eu ³⁺ ions, and at the same time, the intrinsic electronic energy level of Eu ³⁺ ions also absorbs light of a specific wavelength. Therefore, the excitation spectrum of this type of material includes the broadband absorption of the luminescent group of the host material and the ff characteristic absorption of Eu ³⁺ . The strongest luminous peaks are all located at 613nm, and the luminous intensity is high, which can be applied as a good orange light material.

Compared with the prior art, the zirconium phosphate-based luminescent material of the present invention has the following advantages:

1. The matrix material Sr ₇ Zr(PO ₄ ) ₆ is a very good self-activated luminescent material. It is a broadband emission peak at 470-500nm. It has good absorption in the vacuum ultraviolet region and ultraviolet region, and can be used in vacuum ultraviolet or UV-excited luminescence.

2. The strongest luminescence peaks of Eu ³⁺ doped M _7-7x Eu _7x Zr(PO ₄ ) ₆ are located at 613nm, with high luminous intensity, and can be applied as good orange light materials.

3. The zirconium phosphate-based luminescent material of the present invention has adjustable luminous intensity, simple preparation process, safe and reliable operation, cheap and easy-to-obtain raw materials, and is suitable for large-scale production. The reaction process does not generate three wastes, which is environmentally friendly, low energy consumption, high-efficiency industry.

Description of drawings

Fig. 1 is the comparison of the X-ray powder diffraction pattern of the Sr ₇ Zr(PO ₄ ) ₆ sample prepared in Example 1 of the present invention and the standard card PDF#29-0407;

Fig. 2 is the excitation spectrum of the Sr ₇ Zr(PO ₄ ) ₆ sample prepared in Example 1 of the present invention monitored at 470 nm at room temperature;

Fig. 3 is the emission spectrum obtained by excitation at 146 nm of the Sr ₇ Zr (PO ₄ ) ₆ sample prepared in Example 1 of the present invention;

Fig. 4 is the excitation spectrum and emission spectrum monitored at room temperature of the Sr _6.65 Eu _0.35 Zr (PO ₄ ) sample prepared in Example 2 of the present invention;

Figure 5 is the excitation spectrum and emission spectrum monitored at room temperature for the Sr _5.6 Eu _1.4 Zr(PO ₄ ) ₆ sample prepared in Example 3 of the present invention;

Fig. 6 is the comparison between the X-ray powder diffraction pattern of the _Ba7Zr ( _PO4 ) ₆ sample prepared in Example 4 of the present invention and the standard card PDF#29-0407;

Fig. 7 is the excitation spectrum and emission spectrum monitored at room temperature of the Ba ₇ Zr(PO ₄ ) ₆ sample prepared in Example 4 of the present invention;

Fig. 8 is a diagram of the excitation spectrum and emission spectrum monitored at room temperature for the Ba _6.51 Eu _0.49 Zr(PO ₄ ) ₆ sample prepared in Example 5 of the present invention.

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

Example 1

According to the stoichiometric ratio of each element in the chemical formula Sr ₇ Zr(PO ₄ ) ₆ , SrCO ₃ : 5.1671 grams, ZrO ₂ : 0.6161 grams, and NH ₄ H ₂ PO ₄ : 3.451 grams were weighed. 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.

Fig. 1 is a comparison between the X-ray powder diffraction pattern of the Sr ₇ Zr(PO ₄ ) ₆ sample prepared in this example and the standard card PDF#29-0407. It can be seen from Fig. 1 that the Sr ₇ Zr(PO ₄ ) ₆ prepared in this example is phase-pure.

Fig. 2 and Fig. 3 are respectively the excitation spectrum and emission spectrum of the Sr ₇ Zr(PO ₄ ) ₆ sample prepared in this embodiment monitored at room temperature. It can be seen from Figure 2 and Figure 3 that the Sr ₇ Zr(PO ₄ ) ₆ material prepared in this example is a self-excited blue light-emitting material with an emission peak around 470nm, which is a very good blue VUV fluorescence Material.

Example 2

According to the stoichiometric ratio of each element in the chemical formula Sr _6.65 Eu _0.35 Zr(PO ₄ ) ₆ , Eu ₂ O ₃ : 0.308 grams, SrCO ₃ : 4.909 grams, ZrO ₂ : 0.6161 grams, NH ₄ H ₂ PO ₄ : 3.451 grams. 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.

Fig. 4 shows the excitation spectrum and emission spectrum of the Sr _6.65 Eu _0.35 Zr(PO ₄ ) ₆ material sample prepared in this example at room temperature. It can be seen from Fig. 4 that the Sr _6.65 Eu _0.35 Zr(PO ₄ ) ₆ material prepared in this example is a red light emitting material with an emission peak around 613nm, which is a very good red light material.

Example 3

According to the stoichiometric ratio of each element in the chemical formula Sr _6.65 Eu _0.35 Zr(PO ₄ ) ₆ , Eu ₂ O ₃ : 1.232 grams, SrCO ₃ : 4.134 grams, ZrO ₂ : 0.6161 grams, NH ₄ H ₂ PO ₄ : 3.451 grams. 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.

Fig. 5 is a diagram of the excitation spectrum and emission spectrum monitored at room temperature for the Sr _5.6 Eu _1.4 Zr(PO ₄ ) ₆ material sample prepared in this example. It can be seen from Fig. 5 that the Sr _6.65 Eu _0.35 Zr(PO ₄ ) ₆ prepared in this example is an orange luminescent material with an emission peak around 613nm, and is a very good orange luminescent material.

Example 4

Weigh 1.426 g of ZrOCl ₂ 8H ₂ O (analytical grade), dissolve it in 40 ml of deionized water, add 1.854 g of citric acid as a complexing agent, stir at room temperature for 30 minutes, and adjust the pH value of the solution to 7-8 with ammonia water;

Weigh BaCO ₃ : 6.91 grams, dissolve in 35ml of 2mol/L dilute nitric acid solution to obtain a transparent solution;

Mix the two solutions obtained in the above steps and stir to make them uniform;

Add 3.451 grams of diammonium hydrogen phosphate (NH ₄ H ₂ PO ₄ , analytically pure), and stir to form a transparent sol;

The transparent sol is dried at a temperature of 80-100° C. to form a gel. Then, the temperature is raised to 180-300° C. to form an airgel, and the obtained airgel is put into a mortar to grind to obtain a precursor powder.

The obtained precursor powder was placed in an alumina crucible and synthesized in a muffle furnace. Raise to 350°C at a rate of 5°C per minute, keep warm for more than 5 hours, continue to raise the temperature at a rate of 3°C per minute to 1000°C, keep warm for more than 5 hours, and finally raise the temperature to 1300°C at 3°C per minute, and keep warm for more than 6 hours , naturally cooled to room temperature, and the product obtained after grinding is Ba ₇ Zr (PO ₄ ) ₆ material.

Fig. 6 is a comparison between the X-ray powder diffraction pattern of the Ba ₇ Zr(PO ₄ ) ₆ material sample prepared in this example and the standard card PDF#29-0407. It can be seen from Fig. 6 that the Ba ₇ Zr(PO ₄ ) ₆ material prepared in this example is a pure phase.

Fig. 7 is the excitation spectrum and emission spectrum monitored at room temperature for the Ba ₇ Zr(PO ₄ ) ₆ material sample prepared in this example. It can be seen from Fig. 7 that the Ba ₇ Zr(PO ₄ ) ₆ material prepared in this example is a self-excited green light-emitting material with an emission peak around 500 nm, and is a good green fluorescent material.

Example 5

Weigh 1.426 g of ZrOCl ₂ 8H ₂ O (analytical grade), dissolve it in 40 ml of deionized water, add 1.854 g of citric acid as a complexing agent, stir at room temperature for 30 minutes, and adjust the pH value of the solution to 7-8 with ammonia water;

Weigh BaCO ₃ : 6.424 grams, dissolve in 32.55ml of 2mol/L dilute nitric acid solution to obtain a transparent solution;

Weigh Eu ₂ O ₃ : 0.4312g, dissolve in 7.35ml of 2mol/L dilute nitric acid solution, then add an appropriate amount of citric acid, and stir to make it even;

Mix the three solutions obtained in the above steps and stir to make them uniform;

Add 3.451 grams of diammonium hydrogen phosphate (NH ₄ H ₂ PO ₄ , analytically pure), and stir to form a transparent sol;

Dry the obtained transparent sol at a temperature of 80-100° C. to form a gel. Then heat up to 180-300°C to form airgel, put the obtained airgel into a mortar and grind to obtain precursor powder;

The precursor powder was placed in an alumina crucible and synthesized in a muffle furnace. Raise to 350°C at a rate of 5°C per minute, keep warm for more than 5 hours, continue to raise the temperature at a rate of 3°C per minute to 1000°C, keep warm for more than 5 hours, and finally raise the temperature to 1300°C at 3°C per minute, and keep warm for more than 6 hours , naturally cooled to room temperature, and the product obtained after grinding is: Ba _6.51 Eu _0.49 Zr(PO ₄ ) ₆ material.

Fig. 8 shows the excitation spectrum and emission spectrum of the Ba _6.51 Eu _0.49 Zr(PO ₄ ) ₆ material sample prepared in this example and monitored at room temperature. The Ba _6.51 Eu _0.49 Zr(PO ₄ ) ₆ material prepared in this example is an orange luminescent material with an emission peak at around 613 nm, and is a good UV orange luminescent material.

Claims (8)

1. A zirconium phosphate-based luminescent material, characterized in that: its chemical formula is M _7-7x Eu _7x Zr(PO ₄ ) ₆ , wherein M is a divalent alkaline earth metal ion strontium ion Sr ²⁺ or barium ion Ba One of ²⁺ ; x is the doping amount of trivalent europium ion Eu ³⁺ , 0<x≤0.5. 2. a preparation method of zirconium phosphate-based luminescent material as claimed in claim 1, is characterized in that adopting high-temperature solid phase method, comprises the steps: (1) Weigh the raw material according to the stoichiometric ratio of the corresponding elements in the chemical formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ , the raw material is a compound containing an alkali metal ion M , and M is a divalent alkaline earth metal ion strontium ion Sr ²⁺ or one of barium ions Ba ²⁺ , compounds containing europium ions Eu ³⁺ , zirconium dioxide and compounds containing phosphorus ions P ⁵⁺ , 0 < x ≤ 0.5, grinding and mixing uniformly to obtain a mixture; (2) Put the mixture in an alumina crucible and synthesize it in a muffle furnace. The sintering temperature is 900-1500° C., the holding time is more than 5 hours, and a zirconium phosphate-based luminescent material is obtained after cooling. 3. A preparation method of zirconium phosphate-based luminescent material as claimed in claim 1, characterized in that a chemical solution method is adopted, comprising the steps of: (1) Dissolve the compound containing europium ion Eu ³⁺ according to the stoichiometric ratio of the corresponding elements in the general formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ in dilute nitric acid solution or distilled water, and then add an appropriate amount of stoichiometric The complexing agent of the ratio complexes the europium ion Eu ³⁺ ; the molar ratio of the europium ion Eu ³⁺ to the complexing agent is 1:1; the complexing agent is citric acid or ethylenediaminetetraacetic acid; (2) According to the stoichiometric ratio of corresponding elements in the general formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ , weigh zirconium oxychloride octahydrate, dissolve it in aqueous solution to obtain a transparent solution, and then add an appropriate amount of complexing agent in stoichiometric ratio Complexing zirconium ions; the molar ratio of zirconium ions to complexing agent is 1:2; the complexing agent is citric acid or ethylenediaminetetraacetic acid; (3) Dissolve the compound containing alkali metal ion M in water or dilute nitric acid according to the stoichiometric ratio of the corresponding elements in the general formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ to obtain a transparent solution; M is divalent alkaline earth One of the metal ions strontium ions Sr ²⁺ or barium ions Ba ²⁺ ; (4) Mix the solutions obtained in steps (1), (2) and (3), stir and mix evenly; (5) Adding the phosphorus ion P ⁵⁺ compound containing the stoichiometric ratio of the corresponding elements in the general formula M _7-7x Eu _7x Zr(PO ₄ ) ₆ to the mixed solution obtained in step (4), and stirring to form a solution; (6) drying the solution obtained in step (5) to form a gel, then heating to obtain an aerogel, and grinding the obtained aerogel to obtain a precursor powder; (7) Place the precursor powder obtained in step (6) in an alumina crucible and synthesize it in a muffle furnace. First, raise the temperature to 200-500°C and keep it warm for more than 2 hours; continue to heat up to 800-1100°C , keep warm for more than 2 hours; finally raise the temperature to 1200-1400° C., keep warm for more than 3 hours; obtain a zirconium phosphate-based luminescent material after cooling. 4. The preparation method of a zirconium phosphate-based luminescent material according to claim 2 or 3, characterized in that: the compound containing the alkali metal ion M is the oxide of M, the carbonate of M , the carbonate of M One type of nitrate, or a combination of more than one type. 5. The preparation method of zirconium phosphate-based luminescent material according to claim 2 or 3, characterized in that: the compound containing europium ion ^Eu is one of europium oxide, europium nitrate, or their combination. 6. according to the preparation method of a kind of zirconium phosphate-based luminescent material ^described in claim 2 or 3, it is characterized in that: the compound containing phosphorus ion P is a kind of in ammonium dihydrogen phosphate or diammonium hydrogen phosphate, or a combination of them. 7. An application of the zirconium phosphate-based luminescent material according to claim 1, characterized in that the luminescent material is used as a fluorescent material with vacuum ultraviolet light (VUV) and ultraviolet light as excitation sources. 8 . An application of the zirconium phosphate-based luminescent material according to claim 1 , wherein the luminescent material is used in light-emitting diodes, display materials, trichromatic fluorescent lamps or field emission displays.

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