CN113549454A - Eu (II) ion doped single-phase full-spectrum emission fluorescent powder and preparation method and application thereof - Google Patents
Eu (II) ion doped single-phase full-spectrum emission fluorescent powder and preparation method and application thereof Download PDFInfo
- Publication number
- CN113549454A CN113549454A CN202110973168.0A CN202110973168A CN113549454A CN 113549454 A CN113549454 A CN 113549454A CN 202110973168 A CN202110973168 A CN 202110973168A CN 113549454 A CN113549454 A CN 113549454A
- Authority
- CN
- China
- Prior art keywords
- fluorescent powder
- powder
- ion
- phase full
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000843 powder Substances 0.000 title claims abstract description 96
- 238000001228 spectrum Methods 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000002243 precursor Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 238000000227 grinding Methods 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000005303 weighing Methods 0.000 claims abstract description 12
- 230000002829 reductive effect Effects 0.000 claims abstract description 9
- 238000005245 sintering Methods 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 239000004570 mortar (masonry) Substances 0.000 claims description 11
- RSEIMSPAXMNYFJ-UHFFFAOYSA-N europium(III) oxide Inorganic materials O=[Eu]O[Eu]=O RSEIMSPAXMNYFJ-UHFFFAOYSA-N 0.000 claims description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 7
- 239000001095 magnesium carbonate Substances 0.000 claims description 7
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 7
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 7
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 7
- 239000000347 magnesium hydroxide Substances 0.000 claims description 7
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 229910017677 NH4H2 Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 238000009877 rendering Methods 0.000 abstract description 6
- 230000003595 spectral effect Effects 0.000 abstract description 4
- 238000006722 reduction reaction Methods 0.000 description 14
- 238000000295 emission spectrum Methods 0.000 description 6
- 238000000103 photoluminescence spectrum Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 238000005090 crystal field Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- -1 rare earth ion Chemical class 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 108010043121 Green Fluorescent Proteins Proteins 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- 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
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/7737—Phosphates
- C09K11/7738—Phosphates with alkaline earth metals
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
The invention discloses Eu (II) ion doped single-phase full-spectrum emission fluorescent powder and a preparation method and application thereof. Eu according to the invention2+The chemical general formula of the ion-doped fluorescent powder is as follows: ca9MgNa(PO4)7:xEu2+Wherein x is 0.005-0.02. The preparation method of the fluorescent powder comprises the following steps: weighing raw material powder of the fluorescent powder according to the molar ratio, and uniformly grinding; then transferring the mixed raw material powder into a crucible, and sintering at 900-1100 ℃ to obtain a fluorescent powder precursor; weighing the precursor and the reductive metal powder, respectively placing the precursor and the reductive metal powder into two crucibles, placing the crucibles into a vacuum tube furnace, and reducing for 4-8 h at 600-1000 ℃. The invention can obtain the full-spectrum emission fluorescent powder with the spectral range covering 400-750 nm visible light wave band, and has the advantages of high quantum efficiency, high color rendering index, high safety, no pollution and the like.
Description
Technical Field
The invention relates to Eu (II) ion doped single-phase full-spectrum emission fluorescent powder and a preparation method and application thereof, belonging to the technical field of luminescent materials.
Background
As a green illumination light source of the latest generation of the 21 st century, an led (light Emitting diode) has the advantages of small volume, low heat generation, low power consumption, long service life, fast response speed, environmental protection, planar packaging, easy development into thin, short and short products, and the like. At present, the main production method of the white light LED device is to coat the traditional yellow fluorescent powder on a blue light LED chip, and the product has less red component in the emission spectrum and low color rendering index. Several other ways of generating white light, such as: the LED lighting device comprises a red light chip, a green light chip, a blue light chip, an ultraviolet LED chip, blue fluorescent powder, red fluorescent powder and green fluorescent powder, and cannot be well developed in the field of LED lighting due to the problems of low color rendering index, discontinuous emission spectrum, low lighting effect and the like.
To break through the bottleneck of LED in the lighting field, the above problems must be overcome. Firstly, the emission spectrum of the fluorescent powder does not contain ultraviolet radiation and infrared radiation and accords with the sensitivity curve of human eyes; secondly, the high-quality fluorescent powder has a high color rendering index. Combining the above considerations, only light having a near full spectrum of sunlight is the best illumination light. How to research the light close to the full spectrum of sunlight becomes the most urgent subject of the current LED lighting industry.
Rare earth materials are a class of common luminescent materials and are widely applied to the lighting and display industries. At present, full spectrum emission can be realized by mixing multiple phosphors, but the stability and the luminous efficiency of the phosphors are reduced due to the performance difference and mutual absorption among the phosphors. In addition, full spectrum emission can also be realized by rare earth ion co-doping, but the luminous efficiency of the fluorescent powder is reduced due to complex energy transfer between luminous centers. Based on these problems, the realization of full spectrum emission by single doping of rare earth ions in a single matrix material is undoubtedly a desirable implementation.
At present, hydrogen-nitrogen reduction and CO reduction are more applied to fluorescent powder reduction, and the two methods have the defects of poor reduction effect, high pollution and the like.
Disclosure of Invention
The technical problem solved by the invention is as follows: the reduction of the fluorescent powder adopts hydrogen-nitrogen reduction or CO reduction, and has the defects of poor reduction effect, high pollution and the like.
In order to solve the above technical problems, the present invention provides a Eu2+The ion-doped single-phase full-spectrum emission fluorescent powder has a chemical general formula as follows: ca9MgNa(PO4)7:xEu2+Wherein x is 0.005-0.02.
The invention also provides the Eu2+The preparation method of the ion-doped single-phase full-spectrum emission fluorescent powder comprises the following steps:
step 1: weighing CaCO as phosphor raw material3、(MgCO3)4·Mg(OH)2·5H2O、Na2CO3、 NH4H2PO4And Eu2O3Grinding and mixing uniformly;
step 2: placing the uniformly mixed fluorescent powder raw material powder into a crucible, placing the crucible into a muffle furnace, and sintering at 900-1100 ℃ for 8-12 h to obtain a precursor;
and step 3: weighing reductive metal powder and a precursor, respectively placing the reductive metal powder and the precursor in two crucibles, then placing the crucibles in a vacuum tube furnace, vacuumizing, reducing at the reduction temperature of 600-1000 ℃ for 4-8 h, cooling the sample to room temperature, and then placing the sample in an agate mortar for uniform grinding to obtain the fluorescent powder.
Preferably, the molar ratio of the phosphor raw material powder in step 1 is: CaCO3+Eu2O3: (MgCO3)4·Mg(OH)2·5H2O:Na2CO3:NH4H2PO490:2:5: 70; wherein, CaCO3With Eu2O3The molar ratio of (A) is 8.991-8.1: 0.0045-0.45.
Preferably, the grinding time in the step 1 is 15-20 minutes.
Preferably, the reducing metal powder in step 3 includes aluminum powder and/or magnesium powder.
Preferably, the mass ratio of the precursor to the reducing metal powder in the step 3 is 1: 0.3-1.
Preferably, the crucible placing distance between the reducing metal powder and the precursor in the step 3 is 1-4 cm.
Preferably, the vacuum atmosphere in step 3 is a system pressure less than minus 0.1 MPa.
The invention also provides the Eu2+The ion-doped single-phase full-spectrum emission fluorescent powder is applied to an LED device.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention only dopes Eu2+Under the condition of ions, Eu is realized through topological chemical reaction2+The ion crystal field is regulated and controlled, and full-spectrum emission is finally realized, so that the ion crystal field has higher color rendering index and luminous efficiency, and meets the requirements of visual and non-visual illumination of light health human eyes;
2. the method adopts non-contact aluminum reduction reaction as a reduction means, and has the advantages of high safety, no pollution and good reduction effect compared with the traditional hydrogen-nitrogen reduction and CO reduction.
Drawings
FIG. 1 is an XRD pattern of phosphors prepared in examples 1 to 3;
FIG. 2 is a photoluminescence spectrum of the phosphor prepared in examples 1 to 3;
FIG. 3 is a photoluminescence spectrum of an LED device packaged by a phosphor powder matched 365nm ultraviolet chip prepared in example 2 under the drive of a current of 30 mA.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
Example 1
Eu (Eu)2+The preparation method of the ion-doped single-phase full-spectrum emission fluorescent powder comprises the following steps:
(1) according to Eu2+The general formula of the ion-doped single-phase full-spectrum emission fluorescent powder is as follows: ca9MgNa(PO4)7:0.005Eu2 +2g of raw material powder was weighed. The mass ratio of each raw material powder is CaCO3: (MgCO3)4·Mg(OH)2·5H2O:Na2CO3:NH4H2PO4:Eu2O3＝0.9639:0.1044: 0.0569:0.8660:0.0085。
(2) And (3) placing the raw material powder into an agate mortar for grinding for 15-20 minutes, after the raw material powder is uniformly mixed, placing the mixture into a crucible, placing the crucible into a muffle furnace, and sintering for 10 hours at 1050 ℃ in an air atmosphere.
(3) And taking out the sintered sample, cooling, putting the sample in an agate mortar again, and grinding the sample into powder to obtain the precursor.
(4) And weighing the precursor and the aluminum powder according to the mass ratio of 1:0.3, and respectively weighing 1g of the precursor and 0.3g of the aluminum powder.
(5) And placing the weighed precursor and aluminum powder into two crucibles, placing the crucibles into a vacuum tube furnace, vacuumizing to enable the pressure of a system in the tube to be less than negative 0.1MPa, and sintering for 8 hours at 1000 ℃. And after the sample is cooled to room temperature, putting the sample in an agate mortar for uniform grinding to obtain the fluorescent powder.
The crystal structure of the phosphor prepared above was tested using an X-ray diffractometer (Ultima IV-185). The XRD test pattern of the fluorescent powder is shown in figure 1, and the test pattern of the fluorescent powder is consistent with that of a standard card, namely, the single-phase full-spectrum fluorescent powder with better purity is synthesized.
The spectral properties of the phosphor prepared as described above were tested using a fluorescence spectrometer (HITACHI F-7000). The photoluminescence spectrum of the fluorescent powder is shown in figure 2, the excitation wavelength of the fluorescent powder is 365nm, and the emission spectrum covers visible light with a wave band of 400-750 nm.
Example 2
Eu (Eu)2+The preparation method of the ion-doped single-phase full-spectrum emission fluorescent powder comprises the following steps:
(1) according to Eu2+The general formula of the ion-doped single-phase full-spectrum emission fluorescent powder is as follows: ca9MgNa(PO4)7:0.01Eu2 +2g of raw material powder was weighed. The mass ratio of each raw material powder is CaCO3: (MgCO3)4·Mg(OH)2·5H2O:Na2CO3:NH4H2PO4:Eu2O3＝0.9574:0.1043: 0.0569:0.8644:0.0170。
(2) And (3) placing the raw material powder into an agate mortar for grinding for 15-20 minutes, after the raw material powder is uniformly mixed, placing the mixture into a crucible, placing the crucible into a muffle furnace, and sintering for 10 hours at 1050 ℃ in an air atmosphere.
(3) And taking out the sintered sample, cooling, putting the sample in an agate mortar again, and grinding the sample into powder to obtain the precursor.
(4) And weighing the precursor and the aluminum powder according to the mass ratio of 1:0.3, and respectively weighing 1g of the precursor and 0.3g of the aluminum powder.
(5) And placing the weighed precursor and aluminum powder into two crucibles, placing the crucibles into a vacuum tube furnace, vacuumizing to enable the pressure of a system in the tube to be less than negative 0.1MPa, and sintering for 8 hours at 1000 ℃. And after the sample is cooled to room temperature, putting the sample in an agate mortar for uniform grinding to obtain the fluorescent powder.
The crystal structure of the phosphor prepared above was tested using an X-ray diffractometer (Ultima IV-185). The XRD test pattern of the fluorescent powder is shown in figure 1, and the test pattern of the fluorescent powder is consistent with that of a standard card, namely, the single-phase full-spectrum fluorescent powder with better purity is synthesized.
The spectral properties of the phosphor prepared as described above were tested using a fluorescence spectrometer (HITACHI F-7000). The photoluminescence spectrum of the fluorescent powder is shown in figure 2, the excitation wavelength of the fluorescent powder is 365nm, and the emission spectrum covers visible light with a wave band of 400-750 nm.
An ultraviolet chip with the wavelength of 365nm and the prepared fluorescent powder are packaged into an LED device, and the LED device is lightened under the drive current of 30 mA. The optical properties of the LED devices were tested using a fast spectrometer (STC-400) and the photoluminescence spectra are shown in fig. 3 with color coordinates (0.3603,0.3097), color temperature 4085K, and color rendering index 92.3.
Example 3
Eu (Eu)2+The preparation method of the ion-doped single-phase full-spectrum emission fluorescent powder comprises the following steps:
(1) according to Eu2+The general formula of the ion-doped single-phase full-spectrum emission fluorescent powder is as follows: ca9MgNa(PO4)7:0.02Eu2 +2g of raw material powder was weighed. The mass ratio of each raw material powder is CaCO3: (MgCO3)4·Mg(OH)2·5H2O:Na2CO3:NH4H2PO4:Eu2O3＝0.9443:0.1039: 0.0568:0.8613:0.0339。
(2) And (3) placing the raw material powder into an agate mortar for grinding for 15-20 minutes, after the raw material powder is uniformly mixed, placing the mixture into a crucible, placing the crucible into a muffle furnace, and sintering for 10 hours at 1050 ℃ in an air atmosphere.
(3) And taking out the sintered sample, cooling, putting the sample in an agate mortar again, and grinding the sample into powder to obtain the precursor.
(4) And weighing the precursor and the aluminum powder according to the mass ratio of 1:0.3, and respectively weighing 1g of the precursor and 0.3g of the aluminum powder.
(5) And placing the weighed precursor and aluminum powder into two crucibles, placing the crucibles into a vacuum tube furnace, vacuumizing to enable the pressure of a system in the tube to be less than negative 0.1MPa, and sintering for 8 hours at 1000 ℃. And after the sample is cooled to room temperature, putting the sample in an agate mortar for uniform grinding to obtain the fluorescent powder.
The crystal structure of the phosphor prepared above was tested using an X-ray diffractometer (Ultima IV-185). The XRD test pattern of the fluorescent powder is shown in figure 1, and the test pattern of the fluorescent powder is consistent with that of a standard card, namely, the single-phase full-spectrum fluorescent powder with better purity is synthesized.
The spectral properties of the phosphor prepared as described above were tested using a fluorescence spectrometer (HITACHI F-7000). The photoluminescence spectrum of the fluorescent powder is shown in figure 2, the excitation wavelength of the fluorescent powder is 365nm, and the emission spectrum covers visible light with a wave band of 400-750 nm.
While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. Eu (Eu)2+The ion-doped single-phase full-spectrum emission fluorescent powder is characterized in that the chemical general formula of the fluorescent powder is as follows: ca9MgNa(PO4)7:xEu2+Wherein x is 0.005-0.02.
2. Eu according to claim 12+The preparation method of the ion-doped single-phase full-spectrum emission fluorescent powder is characterized by comprising the following preparation steps of:
step 1: weighing CaCO as phosphor raw material3、(MgCO3)4·Mg(OH)2·5H2O、Na2CO3、NH4H2PO4And Eu2O3Grinding to uniformly mix the raw material powder;
step 2: placing the uniformly mixed fluorescent powder raw material powder into a crucible, placing the crucible into a muffle furnace, and sintering at 900-1100 ℃ for 8-12 h to obtain a precursor;
and step 3: weighing reductive metal powder and a precursor, respectively placing the reductive metal powder and the precursor in two crucibles, then placing the crucibles in a vacuum tube furnace, vacuumizing, reducing at the reduction temperature of 600-1000 ℃ for 4-8 h, cooling the sample to room temperature, and then placing the sample in an agate mortar for uniform grinding to obtain the fluorescent powder.
3. Eu according to claim 22+The preparation method of the ion-doped single-phase full-spectrum emission fluorescent powder is characterized in that the molar ratio of the raw material powder of the fluorescent powder in the step 1 is as follows: CaCO3+Eu2O3:(MgCO3)4·Mg(OH)2·5H2O:Na2CO3:NH4H2PO490:2:5: 70; wherein, CaCO3With Eu2O3The molar ratio of (A) is 8.991-8.1: 0.0045-0.45.
4. Eu according to claim 22+The preparation method of the ion-doped single-phase full-spectrum emission fluorescent powder is characterized in that the grinding time in the step 1 is 15-20 minutes.
5. Eu according to claim 22+The preparation method of the ion-doped single-phase full-spectrum emission fluorescent powder is characterized in that the reducing metal powder in the step 3 comprises aluminum powder and/or magnesium powder.
6. Eu according to claim 22+The preparation method of the ion-doped single-phase full-spectrum emission fluorescent powder is characterized in that the mass ratio of the precursor to the reductive metal powder in the step 3 is 1: 0.3-1.
7. Eu according to claim 22+The preparation method of the ion-doped single-phase full-spectrum emission fluorescent powder is characterized in that the placing distance between the reducing metal powder in the step 3 and a crucible of a precursor is 1-4 cm.
8. Eu according to claim 22+The preparation method of the ion-doped single-phase full-spectrum emission fluorescent powder is characterized in that the vacuum atmosphere in the step 3 is that the system pressure is less than minus 0.1 MPa.
9. Eu according to claim 12+The ion-doped single-phase full-spectrum emission fluorescent powder is applied to an LED device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110973168.0A CN113549454A (en) | 2021-08-24 | 2021-08-24 | Eu (II) ion doped single-phase full-spectrum emission fluorescent powder and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110973168.0A CN113549454A (en) | 2021-08-24 | 2021-08-24 | Eu (II) ion doped single-phase full-spectrum emission fluorescent powder and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113549454A true CN113549454A (en) | 2021-10-26 |
Family
ID=78105944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110973168.0A Pending CN113549454A (en) | 2021-08-24 | 2021-08-24 | Eu (II) ion doped single-phase full-spectrum emission fluorescent powder and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113549454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115440868A (en) * | 2022-08-15 | 2022-12-06 | 上海应用技术大学 | Quasi-sunlight/full-spectrum LED based on single-component full-spectrum fluorescent powder packaging |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110129050A (en) * | 2019-06-12 | 2019-08-16 | 上海应用技术大学 | It is a kind of singly to mix single-phase full spectrum fluorescent powder and preparation method |
| CN112094644A (en) * | 2020-09-15 | 2020-12-18 | 上海应用技术大学 | Ultraviolet excited Eu (II) ion single-doped single-phase full-spectrum fluorescent powder and preparation and application thereof |
-
2021
- 2021-08-24 CN CN202110973168.0A patent/CN113549454A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110129050A (en) * | 2019-06-12 | 2019-08-16 | 上海应用技术大学 | It is a kind of singly to mix single-phase full spectrum fluorescent powder and preparation method |
| CN112094644A (en) * | 2020-09-15 | 2020-12-18 | 上海应用技术大学 | Ultraviolet excited Eu (II) ion single-doped single-phase full-spectrum fluorescent powder and preparation and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| JIA ZHANG等: "Warm white-lightgenerationinCa9MgNa(PO4)7:Sr2+, Mn2+ ,Ln (Ln¼Eu2þ, Yb3þ, Er3þ, Ho3þ, andTm3þ) undernear-ultraviolet and near-infraredexcitation", 《CERAMICS INTERNATIONAL》 * |
| JINGSHAN HOU等: "Emission-tunablephosphorsCa9MgM0 (PO4)7: Eu2þ,Mn2þ (M0¼Li, Na,K)for white light-emittingdiodes", 《JOURNAL OFLUMINESCENCE》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115440868A (en) * | 2022-08-15 | 2022-12-06 | 上海应用技术大学 | Quasi-sunlight/full-spectrum LED based on single-component full-spectrum fluorescent powder packaging |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107056070B (en) | A transparent Ce: YAG glass ceramic and preparation method thereof | |
| CN111154488A (en) | Terbium-doped germanate green fluorescent powder for white light LED and preparation method thereof | |
| WO2020248973A1 (en) | Single-doped single-phase full-spectrum fluorescent powder and preparation method therefor | |
| CN109370580B (en) | Bismuth ion activated titanium aluminate fluorescent powder and preparation method and application thereof | |
| CN104403668A (en) | Silicate green fluorescent powder and preparation method thereof | |
| CN113549454A (en) | Eu (II) ion doped single-phase full-spectrum emission fluorescent powder and preparation method and application thereof | |
| CN111434749A (en) | Near-ultraviolet excited warm white light fluorescent powder and preparation method and application thereof | |
| CN112920801A (en) | Red light fluorescent powder material and preparation method thereof | |
| CN104059640B (en) | A kind of borate fluorescent powder substrate and the preparation method of fluorescent material | |
| CN108641715B (en) | A kind of fluorine gallic acid barium sodium red light material and preparation method thereof for white light LEDs | |
| CN113549458B (en) | High-color-rendering trivalent Eu ion-doped red fluorescent material based on apatite structure and preparation method thereof | |
| CN113717718A (en) | Preparation method and application of terbium ion-doped three-dimensional porous-structure alumina aerogel fluorescent powder | |
| CN108441213B (en) | Red fluorescent powder and preparation method thereof | |
| CN104277851B (en) | A kind of silicate green-light emitting phosphor and preparation method thereof | |
| CN107858146B (en) | Eu (Eu)3+Ion-doped borates (K)6Ba4B8O19) Synthesis method of red-based fluorescent powder | |
| CN112322292A (en) | Eu3+Doped fluorescent material and preparation method thereof | |
| CN106867524B (en) | Preparation and application of alkaline earth aluminate blue fluorescent material | |
| CN112094644A (en) | Ultraviolet excited Eu (II) ion single-doped single-phase full-spectrum fluorescent powder and preparation and application thereof | |
| CN110746968A (en) | Fluorescent powder capable of emitting warm white light under ultraviolet excitation and preparation method thereof | |
| CN105586034B (en) | Near ultraviolet excitated photochromic adjustable fluorescent material of single-matrix and preparation method thereof | |
| CN110373188A (en) | A kind of Eu of burst of ultraviolel is mono- to adulterate single-phase white light emission fluorescent powder and preparation method thereof | |
| CN112048299B (en) | Ce3+Doped white light LED fluorescent material and preparation method thereof | |
| CN107739609A (en) | A kind of white light LEDs receive red light material and preparation method thereof with ten difluoro lithium gallium oxides | |
| CN104152143B (en) | Rare earth-containing functional material and preparation method thereof | |
| CN103497761A (en) | Eu<2+>-activated aluminum-barium fluoborate fluorescent powder as well as preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211026 |
|
| RJ01 | Rejection of invention patent application after publication |