CN112111278A - Eu3+ ion activated red luminescent material, preparation method and application - Google Patents
Eu3+ ion activated red luminescent material, preparation method and application Download PDFInfo
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- CN112111278A CN112111278A CN202011170171.0A CN202011170171A CN112111278A CN 112111278 A CN112111278 A CN 112111278A CN 202011170171 A CN202011170171 A CN 202011170171A CN 112111278 A CN112111278 A CN 112111278A
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- 239000000463 material Substances 0.000 title claims abstract description 73
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 150000002500 ions Chemical class 0.000 claims abstract description 85
- 230000005284 excitation Effects 0.000 claims abstract description 8
- 238000001354 calcination Methods 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 26
- 150000008040 ionic compounds Chemical class 0.000 claims description 20
- 239000011575 calcium Substances 0.000 claims description 19
- 239000002994 raw material Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- 229910052714 tellurium Inorganic materials 0.000 claims description 7
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 229910001940 europium oxide Inorganic materials 0.000 claims description 5
- AEBZCFFCDTZXHP-UHFFFAOYSA-N europium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Eu+3].[Eu+3] AEBZCFFCDTZXHP-UHFFFAOYSA-N 0.000 claims description 5
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 229910000416 bismuth oxide Inorganic materials 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 3
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims description 3
- 239000013078 crystal Substances 0.000 abstract description 7
- 150000001768 cations Chemical class 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000010287 polarization Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000002050 diffraction method Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 abstract description 3
- 238000005286 illumination Methods 0.000 abstract description 2
- 238000000695 excitation spectrum Methods 0.000 description 8
- 238000004020 luminiscence type Methods 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 6
- 238000000634 powder X-ray diffraction Methods 0.000 description 6
- 239000002243 precursor Substances 0.000 description 6
- 238000000295 emission spectrum Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 4
- -1 calcium tellurite aluminate Chemical class 0.000 description 3
- 238000001748 luminescence spectrum Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004471 energy level splitting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/88—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing selenium, tellurium or unspecified chalcogen elements
- C09K11/881—Chalcogenides
- C09K11/886—Chalcogenides with rare earth metals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S10/00—Lighting devices or systems producing a varying lighting effect
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
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- Manufacturing & Machinery (AREA)
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Abstract
The invention discloses Eu3+Ion activated red luminescent material, preparation method and application thereof, wherein lattice cations of the material comprise Te with electrostatic lone electron pair4+And Bi3+Ions fully induce the polarization strength of crystal lattices, the substrate material has effective absorption in wavelength ranges of ultraviolet light, near ultraviolet light and blue light, and the luminescent material has good matching property with a commercial near ultraviolet light diode; the material can transfer the absorbed energy to Eu3+Ions and Bi3+The co-doping of ions and two ions disturbs the crystallography environment of the red luminescent material, and Eu3+The most intense emission of ions is5D0→7F2The color is pure, the efficiency is high, and the thermal stability is good; the material can be used for preparationAn illumination device or a display device using ultraviolet light, near ultraviolet light and blue light as excitation light sources; the preparation method has the advantages of simple integral preparation process, easy operation, low production cost, no environmental pollution and high implementation feasibility.
Description
Technical Field
The invention belongs to the technical field of inorganic luminescent materials, and particularly relates to Eu3+An ion activated red luminescent material, a preparation method and application thereof.
Background
With the development of recent science and technology, the rapid development of luminescence and display is realized, and various high-efficiency and stable luminescent materials are greatly required, for example, with the development of semiconductor theory and materials, novel semiconductor chips are continuously innovated, and the extension from the visible light band to the ultraviolet light band is realized, thereby bringing the revolution of human lighting. To date, white LED-based lighting has evolved into new types of lighting and display devices and has created a huge new market. The semiconductor white light illuminating apparatus is all solid, has the characteristics of small volume, extremely low power consumption, long service life and the like, and is rapidly developed.
Among various rare earth-activated phosphors, a red light emitting material plays an important role, for example, in white LED illumination, a red light emitting material is one of important components of a three-color phosphor. Even in a white LED lighting fixture in which a blue semiconductor chip and a yellow phosphor are packaged, a red light emitting material is added to overcome the color development disadvantage of luminescence. Thus, trivalent Eu3+Ion-activated red phosphors have received great attention because Eu is3+The red luminescence of the ion is due to it5D0→7F1-4The sharp luminous line caused by the transition has pure red luminous chroma, high luminous efficiency, good color stability and low preparation condition requirement, and is generally prepared by calcining in air atmosphere.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide Eu3+Ion activated red colorLuminescent material, preparation method and application thereof, Eu of the invention3+An ion-activated red luminescent material, the lattice cation comprising Te with an electrostatic lone pair4+And Bi3+Ions fully induce the polarization strength of crystal lattices, the substrate material has effective absorption in wavelength ranges of ultraviolet light, near ultraviolet light and blue light, and the luminescent material has good matching property with a commercial near ultraviolet light diode; eu according to the invention3+An ion-activated red luminescent material for transferring the absorbed energy to Eu3+Ions and Bi3+The co-doping of ions and two ions disturbs the crystallography environment of the red luminescent material, and Eu3+The most intense emission of ions is5D0→7F2The color is pure, the efficiency is high, and the thermal stability is good; eu according to the invention3+The ion-activated red luminescent material can be used for preparing an illuminating device or a display device which takes ultraviolet light, near ultraviolet light and blue light as excitation light sources; eu according to the invention3+The preparation method of the ion activated red luminescent material has the advantages of simple integral preparation process, easy operation, low production cost, no environmental pollution and high implementation feasibility.
In order to achieve the purpose, the technical scheme of the invention is to design Eu3+Ion-activated red phosphor, said Eu3+The chemical general formula of the ion-activated red luminescent material is Ca3-xEuxAl2Te1-yBiyO9Wherein x is Eu3+Ion-doped substituted Ca2+The molar ratio of ions is more than or equal to 0.01 and less than or equal to 0.1, and y is Bi3+Ion-doped substituted Te4+The molar ratio of the ions is within the range of 0.01-0.1, and x-y.
In order to secure the above Eu3+The smooth preparation of the ion-activated red luminescent material provides a Eu3+The preparation method of the ion activated red luminescent material comprises the following steps:
s1: according to the chemical formula Ca3-xEuxAl2Te1-yBiyO9The stoichiometric ratio of each element in the mixture is calledTaking out the solution containing Ca2+Ionic compound containing Al3+Ionic compound containing Te4+Ionic compound containing Bi3+Ionic compound containing Eu3+Ionic compounds, and then uniformly mixing and grinding the weighed compounds to obtain a raw material mixture;
s2: pre-calcining the raw material mixture obtained in the step S1 for several times in an air atmosphere, wherein the pre-calcining temperature is 500-1200 ℃, and the pre-calcining time is 1-10 hours, so as to obtain a pre-calcined mixture;
s3: calcining the pre-calcined mixture obtained in the step S2 for several times in the air atmosphere at the calcining temperature of 1200-1450 ℃ for 1-10 hours, and naturally cooling to room temperature to obtain the Eu3+An ion activated red luminescent material.
Preferably, the Ca-containing compound is2+The ionic compound is calcium carbonate or calcium nitrate, and the Al-containing compound3+The ionic compound is aluminum nitrate or aluminum oxide, and the compound contains Te4+The ionic compound is tellurium oxide, and the compound contains Bi3+The ionic compound is bismuth oxide or bismuth nitrate, and the Eu is contained3+The ionic compound is europium oxide.
For convenience of the above Eu3+Application, implementation and popularization of ion-activated red luminescent material, and now provides Eu3+The application of the ion activated red luminescent material is to prepare an illuminating device or a display device which takes ultraviolet light, near ultraviolet light and blue light as excitation light sources.
The advantages and benefits of the present invention are now presented:
1. eu according to the invention3+An ion-activated red luminescent material, the lattice cation comprising Te with an electrostatic lone pair4+And Bi3+Ions fully induce the polarization strength of crystal lattices, the substrate material has effective absorption in wavelength ranges of ultraviolet light, near ultraviolet light and blue light, and the luminescent material has good matching property with commercial near ultraviolet light diodes.
2. Eu according to the invention3+Ion activated red hairOptical material capable of transferring absorbed energy to Eu3+Ions and Bi3+The co-doping of ions and two ions disturbs the crystallography environment of the red luminescent material, and Eu3+The most intense emission of ions is5D0→7F2The color is pure, the efficiency is high, and the thermal stability is good.
3. Eu according to the invention3+The preparation method of the ion activated red luminescent material has the advantages of simple integral preparation process, easy operation, low production cost, no environmental pollution and high implementation feasibility.
4. Eu according to the invention3+The ion-activated red luminescent material can be used for preparing an illuminating device or a display device which takes ultraviolet light, near ultraviolet light and blue light as excitation light sources.
Drawings
FIG. 1 shows the preparation of Eu in example 13+An X-ray powder diffraction pattern of the ion-activated red luminescent material;
FIG. 2 shows the preparation of Eu in example 13+Excitation and emission spectra of ion-activated red luminescent materials;
FIG. 3 shows the preparation of Eu in example 23+An X-ray powder diffraction pattern of the ion-activated red luminescent material;
FIG. 4 shows the preparation of Eu in example 23+Excitation and emission spectra of ion-activated red luminescent materials;
FIG. 5 shows the preparation of Eu in example 33+An X-ray powder diffraction pattern of the ion-activated red luminescent material;
FIG. 6 shows the preparation of Eu in example 33+Excitation and luminescence spectra of ion-activated red luminescent materials.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
According to the method of the inventionPreparation of Eu3+An ion-activated red luminescent material with a chemical formula of Ca2.99Eu0.01Al2Te0.99Bi0.01O9The method comprises the following specific operations:
according to the chemical formula Ca2.99Eu0.01Al2Te0.99Bi0.01O9Respectively weighing 5.98 g of calcium carbonate, 0.035 g of europium oxide, 2.04 g of aluminum oxide, 3.16 g of tellurium oxide and 0.047 g of bismuth oxide according to the stoichiometric amount of each element; carefully grinding the raw material mixture, and pre-calcining the raw material mixture in an air atmosphere at the pre-calcining temperature of 1200 ℃ for 1 hour to obtain a pre-calcined mixture; calcining the pre-calcined mixture in air atmosphere at 1450 deg.C for 5 hr, and naturally cooling to room temperature to obtain Eu3+An ion activated red luminescent material.
Eu, according to the preparation method of the present invention, for example 1, see FIG. 13+The powder X-ray diffraction pattern of the ion-activated red luminescent material is completely consistent with that of PDF #36-0024 of a standard card belonging to a precursor matrix (Ca)3Al2TeO9) The results show that:
example 1 preparation of Eu according to the present invention3+The ion activated red luminescent material is a single phase and has good crystallinity.
Eu, according to the preparation method of the present invention, for example 1, see FIG. 23+Excitation spectrum and luminescence spectrum of ion-activated red luminescent material, excitation spectrum showing the Eu3+The ion-activated red luminescent material is well excited in the wavelength ranges of ultraviolet light, near ultraviolet light and blue light; the emission spectrum shows the Eu3+The ion activated red luminescent material presents an emission main peak at 615nm and has pure chroma.
Example 2
Preparation of Eu according to the method of the present invention3+An ion-activated red luminescent material with a chemical formula of Ca2.9Eu0.1Al2Te0.9Bi0.1O9The method comprises the following specific operations:
according to the chemical formula Ca2.9Eu0.1Al2Te0.9Bi0.1O9According to the stoichiometry of each element, 6.186 g of calcium nitrate, 0.229 g of europium oxide, 1.326 g of aluminum oxide, 1.867 g of tellurium oxide and 0.631 g of bismuth nitrate are respectively weighed; carefully grinding the raw material mixtures, and pre-calcining the raw material mixtures in an air atmosphere at the pre-calcining temperature of 500 ℃ for 3 hours to obtain a first pre-calcined mixture; grinding and mixing the first pre-calcined mixture again uniformly, and pre-calcining for the second time in an air atmosphere, wherein the temperature of the pre-calcining for the second time is 900 ℃, and the time of the pre-calcining for the second time is 4 hours, so as to obtain a second pre-calcined mixture; calcining the obtained second pre-calcined mixture again in air atmosphere at 1400 ℃ for 6 hours, and naturally cooling to room temperature to obtain Eu3+An ion activated red luminescent material.
Eu, according to the preparation method of the present invention, for example 2, see FIG. 33+The powder X-ray diffraction pattern of the ion-activated red luminescent material is completely consistent with that of PDF #36-0024 of a standard card belonging to a precursor matrix (Ca)3Al2TeO9) The results show that:
example 2 preparation of Eu according to the present invention3+The ion activated red luminescent material is a single phase and has good crystallinity.
Eu, according to the preparation method of the present invention, for example 2, see FIG. 43+Excitation spectrum and luminescence spectrum of ion-activated red luminescent material, excitation spectrum showing the Eu3+The ion-activated red luminescent material is well excited in the wavelength ranges of ultraviolet light, near ultraviolet light and blue light; the emission spectrum shows the Eu3+The ion activated red luminescent material presents an emission main peak at 615nm and has pure chroma.
Example 3
Preparation of Eu according to the method of the present invention3+An ion-activated red luminescent material with a chemical formula of Ca2.92Eu0.08Al2Te0.92Bi0.08O9Detailed description of the inventionThe following is done:
according to the chemical formula Ca2.92Eu0.08Al2Te0.92Bi0.08O9Respectively weighing 3.567 g of calcium carbonate, 0.173 g of europium oxide, 9.225 g of aluminum nitrate, 1.767 g of tellurium oxide and 0.229 g of bismuth oxide according to the stoichiometric amount of each element; carefully grinding the raw material mixtures, and pre-calcining the raw material mixtures in an air atmosphere at the pre-calcining temperature of 700 ℃ for 2 hours to obtain a first pre-calcined mixture; grinding and uniformly mixing the first pre-calcined mixture again, and performing secondary pre-calcination in an air atmosphere, wherein the temperature of the secondary pre-calcination is 1000 ℃, and the calcination time is 5 hours, so as to obtain a secondary pre-calcined mixture; calcining the obtained second pre-calcined mixture again in air atmosphere at 1350 ℃ for 8 hours, and naturally cooling to room temperature to obtain Eu3+An ion activated red luminescent material.
Eu, according to the preparation method of the present invention, for example 3, see FIG. 53+The powder X-ray diffraction pattern of the ion-activated red luminescent material is completely consistent with that of PDF #36-0024 of a standard card belonging to a precursor matrix (Ca)3Al2TeO9) The results show that: example 3 preparation of Eu according to the present invention3+The ion activated red luminescent material is a single phase and has good crystallinity.
Eu, according to the manufacturing method of the present invention, for example 3, see FIG. 63+Excitation spectrum and luminescence spectrum of ion-activated red luminescent material, excitation spectrum showing the Eu3+The ion-activated red luminescent material is well excited in the wavelength ranges of ultraviolet light, near ultraviolet light and blue light; the emission spectrum shows the Eu3+The ion activated red luminescent material presents an emission main peak at 615nm and has pure chroma.
Eu according to the invention3+Theoretical basis of ion-activated red luminescent materials:
first, the Eu of the present invention3+The precursor matrix of the ion-activated red luminescent material is calcium tellurite aluminate Ca3Al2TeO9The precursor ofThe crystal lattice of the matrix has higher strength, is favorable for the thermal stability of luminescence, and is suitable for being used as a matrix material of rare earth ions;
next, the precursor base (Ca)3Al2TeO9) Of lattice cation Te4+The electrostatic lone electron pairs with characteristics are regularly distributed in the three-dimensional crystal lattice to cause the polarization performance of the crystal lattice, thus being beneficial to the energy level splitting of the doped rare earth ions and realizing effective luminescence;
again, for the present invention Eu3+The modification of the ion activated red luminescent material is as follows: simultaneous doping with Bi3+And Eu3+Ion, Bi3+Ions and Te4+Ionic identity, Bi3+Electrostatic lone pair of ions also characterized, Eu3+Ions and Bi3+Ion substitution of Ca for corresponding moieties respectively2+Ions and Te4+Position of ions, so that the crystal lattice achieves a new electroneutral equilibrium, Bi3+Presence of ions to Eu3+The luminescence of ions has a great sensitizing effect.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. Eu (Eu)3+An ion-activated red phosphor, wherein said Eu is3+The chemical general formula of the ion-activated red luminescent material is Ca3-xEuxAl2Te1-yBiyO9Wherein x is Eu3+Ion-doped substituted Ca2+The molar ratio of ions is more than or equal to 0.01 and less than or equal to 0.1, and y is Bi3+Ion-doped substituted Te4+The molar ratio of the ions is within the range of 0.01-0.1, and x-y.
2. Eu according to claim 13+The preparation method of the ion activated red luminescent material is characterized in thatThe method comprises the following steps:
s1: according to the chemical formula Ca3-xEuxAl2Te1-yBiyO9The stoichiometric ratio of each element in the composition is that Ca is weighed respectively2+Ionic compound containing Al3+Ionic compound containing Te4+Ionic compound containing Bi3+Ionic compound containing Eu3+Ionic compounds, and then uniformly mixing and grinding the weighed compounds to obtain a raw material mixture;
s2: pre-calcining the raw material mixture obtained in the step S1 for several times in an air atmosphere, wherein the pre-calcining temperature is 500-1200 ℃, and the pre-calcining time is 1-10 hours, so as to obtain a pre-calcined mixture;
s3: calcining the pre-calcined mixture obtained in the step S2 for several times in the air atmosphere at the calcining temperature of 1200-1450 ℃ for 1-10 hours, and naturally cooling to room temperature to obtain the Eu3+An ion activated red luminescent material.
3. Eu according to claim 23+The preparation method of the ion-activated red luminescent material is characterized in that the red luminescent material contains Ca2+The ionic compound is calcium carbonate or calcium nitrate, and the Al-containing compound3+The ionic compound is aluminum nitrate or aluminum oxide, and the compound contains Te4+The ionic compound is tellurium oxide, and the compound contains Bi3+The ionic compound is bismuth oxide or bismuth nitrate, and the Eu is contained3+The ionic compound is europium oxide.
4. Eu according to claim 13+The application of the ion activated red luminescent material is characterized in that an illuminating device or a display device which takes ultraviolet light, near ultraviolet light and blue light as excitation light sources is prepared.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015221843A (en) * | 2014-05-22 | 2015-12-10 | パナソニック株式会社 | Fluophor and light-emitting device using the same |
| CN109825296A (en) * | 2019-03-05 | 2019-05-31 | 常州工程职业技术学院 | A kind of europium ion Eu3+Fluorine antimonate orange red fluorescent powder of activation and preparation method thereof |
| CN109988575A (en) * | 2019-04-28 | 2019-07-09 | 常州工程职业技术学院 | A kind of Eu3+Ion-activated vanadium phosphorus niobates red fluorescence powder, preparation method and applications |
| CN110003895A (en) * | 2019-05-07 | 2019-07-12 | 常州工程职业技术学院 | A kind of europium ion Eu3+The aluminate red fluorescent powder of activation, preparation method and applications |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015221843A (en) * | 2014-05-22 | 2015-12-10 | パナソニック株式会社 | Fluophor and light-emitting device using the same |
| CN109825296A (en) * | 2019-03-05 | 2019-05-31 | 常州工程职业技术学院 | A kind of europium ion Eu3+Fluorine antimonate orange red fluorescent powder of activation and preparation method thereof |
| CN109988575A (en) * | 2019-04-28 | 2019-07-09 | 常州工程职业技术学院 | A kind of Eu3+Ion-activated vanadium phosphorus niobates red fluorescence powder, preparation method and applications |
| CN110003895A (en) * | 2019-05-07 | 2019-07-12 | 常州工程职业技术学院 | A kind of europium ion Eu3+The aluminate red fluorescent powder of activation, preparation method and applications |
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