CN109181694A - Three strontium yttrium borate base blue colour fluorescent powders of a kind of divalent europium doping and preparation method thereof - Google Patents
Three strontium yttrium borate base blue colour fluorescent powders of a kind of divalent europium doping and preparation method thereof Download PDFInfo
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- CN109181694A CN109181694A CN201811109172.7A CN201811109172A CN109181694A CN 109181694 A CN109181694 A CN 109181694A CN 201811109172 A CN201811109172 A CN 201811109172A CN 109181694 A CN109181694 A CN 109181694A
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- 239000000843 powder Substances 0.000 title claims abstract description 54
- UVSGKJQVZVWZSH-UHFFFAOYSA-N strontium yttrium(3+) borate Chemical compound B([O-])([O-])[O-].[Y+3].[Sr+2] UVSGKJQVZVWZSH-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 229910052693 Europium Inorganic materials 0.000 title claims description 19
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 title claims description 16
- 230000005284 excitation Effects 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 36
- 239000002994 raw material Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 7
- RSEIMSPAXMNYFJ-UHFFFAOYSA-N europium(III) oxide Inorganic materials O=[Eu]O[Eu]=O RSEIMSPAXMNYFJ-UHFFFAOYSA-N 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 6
- 229910052712 strontium Inorganic materials 0.000 claims description 6
- 229910052727 yttrium Inorganic materials 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000000695 excitation spectrum Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 4
- 238000000295 emission spectrum Methods 0.000 claims description 3
- 239000012856 weighed raw material Substances 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 2
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 claims description 2
- 229910000018 strontium carbonate Inorganic materials 0.000 claims description 2
- 238000010532 solid phase synthesis reaction Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 238000004458 analytical method Methods 0.000 description 6
- 229910052593 corundum Inorganic materials 0.000 description 5
- 239000010431 corundum Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 229910052761 rare earth metal Inorganic materials 0.000 description 5
- 150000002910 rare earth metals Chemical class 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002284 excitation--emission spectrum Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 241000675108 Citrus tangerina Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910019990 cerium-doped yttrium aluminum garnet Inorganic materials 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
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- 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
- C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
- C09K11/7797—Borates
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Luminescent Compositions (AREA)
Abstract
The invention discloses a kind of divalent europiums to adulterate three strontium yttrium borate base blue colour fluorescent powders and preparation method thereof, chemical general formula are as follows: Sr3‑xY(BO3)3: xEu, wherein 0.01≤x≤0.15.It can effectively be excited by black light, issue the high blue light of excitation purity.The present invention is that blue colour fluorescent powder is prepared based on solid-phase synthesis, is prepared under reducing atmosphere, simple process, favorable reproducibility, short preparation period, and non-pollutant discharge is environmental-friendly, easily operated and industrialized production.
Description
Technical field
The invention belongs to the phosphor technologies fields LED, are related to a kind of three strontium yttrium borate base blue colour fluorescents of divalent europium doping
Powder and preparation method thereof.
Background technique
Light emitting diode (Light Emitting Diode, LED) is acknowledged as the new light sources of 21st century, has
Many advantages, such as energy conservation, fast, environmentally protective, the service life is long, small in size, luminous efficiency is high response, has in illumination and display field
Huge application prospect.
Currently, it is mainly the blue light excitation YAG:Ce for passing through the generation of GaIn base chip that commercial white light LEDs, which generate white light,3+Fluorescence
Powder, but generate white light lack red color components, cause its color rendition index lower (Ra<80), correlated colour temperature it is higher (CCT>
7000K), common lighting requirement can only be met.Redgreenblue fluorescent powder is coated, near ultraviolet LED chip near ultraviolet
Light excitated blue, green, red fluorescence powder form blue and green light, feux rouges combination can also issue white light.This method not only may be used
To overcome the problems, such as that conventional white light LED exists, it is also easy to the luminous color of control, colour rendering is good.Eu2+Through frequently as a kind of blue light
The activator of transmitting can emit blue light under near ultraviolet excitation.So Eu2+The transmitting light of doping fluorescent powder can be used as
The blue component of white light LEDs.Therefore, research can effectively be excited by black light, the divalent europium doping that luminous intensity is high, purity is good
Three strontium yttrium borate base tangerine blue light fluorescent powders have good practical application value.
Summary of the invention
The object of the present invention is to provide a kind of divalent europiums to adulterate three strontium yttrium borate base fluorescent powders and preparation method thereof, solves mesh
The problems such as preceding commercialization white light LEDs correlated colour temperature is high, and display index is low.
The technical scheme adopted by the invention is that
A kind of three strontium yttrium borate base blue colour fluorescent powders of divalent europium doping, the chemical general formula of the fluorescent powder are Sr3-xY(BO3)3∶
XEu, wherein 0.01≤x≤0.15.
The excitation spectrum of the fluorescent powder in 200-400nm, main excitation peak near 232nm, emission spectrum 400~
650nm, main peak is near 465nm.
The fluorescent powder can issue blue light under near ultraviolet excitation.
Three strontium yttrium borate base blue colour fluorescent powders of a kind of divalent europium doping and preparation method thereof, comprising the following steps:
(1) according to the chemical structural formula Sr of fluorescent powder3-xY(BO3)3: the mol ratio amount of xEu, weigh respectively containing Sr, Y,
B, weighed raw material is fully ground and is uniformly mixed as raw material by the compound of Eu element；
(2) it by uniform raw material under air atmosphere, is calcined 5-8 hours at 1200 DEG C -1300 DEG C；
(3) it after the completion of calcining, is taken out after being cooled to room temperature, is fully ground crushing, obtains Eu2+Adulterate three strontium yttrium borate fluorescence
Powder Sr3Y1-x(BO3)3: xEu, wherein 0.01≤x≤0.15.
The compound containing Sr, Y, B, Eu element, respectively SrCO3、Y2O3、H3BO3、Eu2O3。
The calcining is carried out in SGQ-5-14 tube type resistance furnace, reducing atmosphere 5%H2+ 95%Ar, from room temperature with 8
The heating rate of~10 DEG C/min rises to 1200 DEG C -1300 DEG C, keeps the temperature 5-8h, later furnace cooling.
The grinding of the raw material, calcined its milling time of grinding are 20~60min.
The beneficial effects of the present invention are:
It is provided by the invention with Sr3Y(BO3)3It is not only at low cost, stability is good, easy preparation for the fluorescent powder of matrix, but also
There is a very strong excitation peak near ultraviolet region, is suitble to UV excitation, can be applied to LED.Therefore, Sr3Y(BO3)3It being capable of conduct
Good fluorescent powder basis material.By adulterating active ions Eu2+, main peak position can be obtained under black light (232nm) excitation
Luminous intensity is compared with strong, the higher blue light of excitation purity near 465nm.The Sr that the present invention is prepared3Y(BO3)3Base fluorescent powder
It learns property to stablize, good luminous performance, luminous intensity is high, and colour rendering is good, can meet the application requirement in White-light LED illumination field.This
The fluorescent powder of invention preparation is suitble near ultraviolet excitated, and emission peak is located at 465nm, and chromaticity coordinates is located at blue region (x=0.179, y
=0.088) it, is matched near ultraviolet chip light emitting diode, illustrates that fluorescent powder prepared by the present invention is a kind of good luminescence property
Blue light fluorescent powder.
Divalent europium provided by the invention adulterates the preparation method of three strontium yttrium borate base blue colour fluorescent powders, and preparation method is base
In solid-phase synthesis come what is prepared, strong operability is prepared under reducing atmosphere, and temperature-rise period is simple, and preparation method is simple,
Favorable reproducibility, short preparation period.
Detailed description of the invention
Fig. 1 is the Sr that embodiment 3 is prepared2.96Y(BO3)3: 0.04Eu fluorescent powder and Sr3Y(BO3)3The X-ray of matrix
Diffracting spectrum and Ba3Dy(BO3)3Standard card (PDF#50-0098) comparison diagram；
Fig. 2 is the Sr that embodiment 3 is prepared2.96Y(BO3)3: the excitation spectrum and emission spectrum of 0.04Eu fluorescent powder；
Fig. 3 is the Sr that embodiment 3 is prepared2.96Y(BO3)3: the CIE chromaticity coordinates figure of 0.04Eu fluorescent powder.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of divalent europium of the present invention adulterates three strontium yttrium borate base blue colour fluorescent powders and preparation method thereof, specifically according to following step
It is rapid to implement:
(1) according to the chemical structural formula Sr of fluorescent powder1-xY(BO3)3: the mol ratio amount of xEu, weigh respectively containing Sr, Y,
B, weighed raw material is fully ground and is uniformly mixed as raw material by the compound of Eu element；
(2) it by uniform raw material under air atmosphere, is calcined 5-8 hours at 1200-1300 DEG C；
(3) it after the completion of calcining, is taken out after being cooled to room temperature, is fully ground crushing, obtains Eu2+Adulterate three strontium yttrium borate fluorescence
Powder Sr1-xY(BO3)3: xEu, wherein 0.01≤x≤0.15.
A kind of divalent europium of the present invention adulterates three strontium yttrium borate base blue colour fluorescent powders and preparation method thereof, is made using solid phase method
Standby, luminous intensity is high, simple process, strong operability, short preparation period.
Embodiment 1
By chemical formula Sr2.99Y(BO3)3: the stoichiometric of 0.01Eu accurately weighs SrCO with electronic balance respectively3、
Y2O3、H3BO3、Eu2O3, the purity of middle rare earth is 99.99%, remaining is that analysis is pure.Above-mentioned raw materials are ground
Mill after mixing, is packed into corundum crucible, is placed in high temperature process furnances, is risen in reducing atmosphere with the heating rate of 5 DEG C/min
1200 DEG C, 5 hours are kept the temperature, then furnace cooling is cooled to room temperature to sample.Sample regrinding is taken out to crush to get Eu is arrived2+
Adulterate three strontium yttrium borate blue colour fluorescent powders.
Embodiment 2
By chemical formula Sr2.98Y(BO3)3: the stoichiometric of 0.02Eu accurately weighs SrCO with electronic balance respectively3、
Y2O3、H3BO3、Eu2O3, the purity of middle rare earth is 99.99%, remaining is that analysis is pure.Above-mentioned raw materials are ground
Mill after mixing, is packed into corundum crucible, is placed in high temperature process furnances, is risen in reducing atmosphere with the heating rate of 8 DEG C/min
1200 DEG C, 5 hours are kept the temperature, then furnace cooling is cooled to room temperature to sample.Sample regrinding is taken out to crush to get Eu is arrived2+
Adulterate three strontium yttrium borate blue colour fluorescent powders.
Embodiment 3
By chemical formula Sr2.96Y(BO3)3: the stoichiometric of 0.04Eu accurately weighs SrCO with electronic balance respectively3、
Y2O3、H3BO3、Eu2O3, the purity of middle rare earth is 99.99%, remaining is that analysis is pure.Above-mentioned raw materials are ground
Mill after mixing, is packed into corundum crucible, is placed in high temperature process furnances, is risen in reducing atmosphere with the heating rate of 10 DEG C/min
1250 DEG C, 5 hours are kept the temperature, then furnace cooling is cooled to room temperature to sample.Sample regrinding is taken out to crush to get Eu is arrived2+
Adulterate three strontium yttrium borate blue colour fluorescent powders.
Fig. 1 is Sr prepared by the present embodiment 32.96Y(BO3)3: 0.04Eu fluorescent powder and Sr3Y(BO3)3The X-ray of matrix is spread out
Penetrate map and Ba3Dy(BO3)3Standard card (PDF#50-0098) comparison diagram.At present without discovery Sr in PDF card base3Y
(BO3)3Standard card, but find compared with the crystal structure of this substance similar Ba3Dy(BO3)3Standard card PDF#
Standard card of the 50-0098 as sample diffraction atlas analysis.It can be found that main diffraction peak all with Ba3Dy(BO3)3Standard
Card is corresponding, but all has to big angle of diffraction direction and a little deviate.Reason is that the ionic radius of Sr and Ba is differentCause to deviate to wide-angle；The ionic radius of Y and Dy is very closeInfluence very little to the angle of diffraction.It is seen that object is mutually with high purity, crystallinity
Good, significant change does not occur for doping front and back principal crystalline phase.
Fig. 2 is Sr prepared by the present embodiment 32.96Y(BO3)3: the excitation spectrum and emission spectrum of 0.04Eu fluorescent powder.This is glimmering
The excitation spectrum of light powder is in 200~400nm, and main excitation peak is near 232nm, and emission spectrum is in 425~650nm, transmitting
Peak is located near 465nm.It can be seen that the fluorescent powder can effectively be excited by black light and issue blue light, white light can be applied to
LED。
Fig. 3 is Sr prepared by the present embodiment 32.96Y(BO3)3: the CIE chromaticity coordinates figure of 0.04Eu fluorescent powder.Chromaticity coordinates is located at
Blue region (x=0.179, y=0.088) illustrates that fluorescent powder prepared by the present invention is a kind of blue-fluorescence of good luminescence property
Powder.
Embodiment 4
By chemical formula Sr2.9Y(BO3)3: the stoichiometric of 0.1Eu accurately weighs SrCO with electronic balance respectively3、
Y2O3、H3BO3、Eu2O3, the purity of middle rare earth is 99.99%, remaining is that analysis is pure.Above-mentioned raw materials are ground
Mill after mixing, is packed into corundum crucible, is placed in high temperature process furnances, is risen in reducing atmosphere with the heating rate of 10 DEG C/min
1250 DEG C, 7 hours are kept the temperature, then furnace cooling is cooled to room temperature to sample.Sample regrinding is taken out to crush to get Eu is arrived2+
Adulterate three strontium yttrium borate blue colour fluorescent powders.
Embodiment 5
By chemical formula Sr2.85Y(BO3)3: the stoichiometric of 0.15Eu accurately weighs SrCO with electronic balance respectively3、
Y2O3、H3BO3、Eu2O3, the purity of middle rare earth is 99.99%, remaining is that analysis is pure.Above-mentioned raw materials are ground
Mill after mixing, is packed into corundum crucible, is placed in high temperature process furnances, is risen in reducing atmosphere with the heating rate of 10 DEG C/min
1300 DEG C, 8 hours are kept the temperature, then furnace cooling is cooled to room temperature to sample.Sample regrinding is taken out to crush to get Eu is arrived2+
Adulterate three strontium yttrium borate blue colour fluorescent powders.
Claims (7)
1. a kind of divalent europium adulterates three strontium yttrium borate base blue colour fluorescent powders, which is characterized in that the chemical general formula of the fluorescent powder is
Sr3-xY(BO3)3: xEu, wherein 0.01≤x≤0.15.
2. divalent europium as described in claim 1 adulterates three strontium yttrium borate base blue colour fluorescent powders, which is characterized in that the fluorescent powder
Excitation spectrum is in 200~400nm, and main excitation peak is near 232nm, and emission spectrum is in 400~650nm, and main peak is in 465nm
Near.
3. divalent europium as claimed in claim 2 adulterates three strontium yttrium borate base blue colour fluorescent powders, which is characterized in that the fluorescence
Powder can issue blue light under near ultraviolet excitation.
4. the preparation method that a kind of divalent europium adulterates three strontium yttrium borate base blue colour fluorescent powders, which comprises the following steps:
(1) according to the chemical structural formula Sr of fluorescent powder3-xY(BO3)3: the mol ratio amount of xEu is weighed respectively containing Sr, Y, B, Eu
The compound of element is fully ground and is uniformly mixed as raw material, by weighed raw material；
(2) it by uniform raw material under air atmosphere, is calcined 5-8 hours at 1200 DEG C -1300 DEG C；
(3) it after the completion of calcining, is taken out after being cooled to room temperature, is fully ground crushing, obtains Eu2+Adulterate three strontium yttrium borate fluorescent powders
Sr3-xY(BO3)3: xEu, wherein 0.01≤x≤0.15.
5. the preparation method that divalent europium as claimed in claim 4 adulterates three strontium yttrium borate base blue colour fluorescent powders, which is characterized in that
The compound containing Sr, Y, B, Eu element, respectively SrCO3、Y2O3、H3BO3、Eu2O3。
6. the preparation method that divalent europium as claimed in claim 4 adulterates three strontium yttrium borate base blue colour fluorescent powders, which is characterized in that
The calcining carries out in high temperature process furnances, under reducing atmosphere, rises to from room temperature with the heating rate of 5~10 DEG C/min
1200 DEG C -1300 DEG C, keep the temperature 5-8h, later furnace cooling.
7. the preparation method that divalent europium as claimed in claim 4 adulterates three strontium yttrium borate base blue colour fluorescent powders, which is characterized in that
The grinding of the raw material and the grinding of post-calcination sample, milling time are 20~60min.
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|---|---|---|---|
| CN201811109172.7A CN109181694A (en) | 2018-09-21 | 2018-09-21 | Three strontium yttrium borate base blue colour fluorescent powders of a kind of divalent europium doping and preparation method thereof |
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| CN201811109172.7A CN109181694A (en) | 2018-09-21 | 2018-09-21 | Three strontium yttrium borate base blue colour fluorescent powders of a kind of divalent europium doping and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114410301A (en) * | 2021-11-25 | 2022-04-29 | 济南鲁新新型建材股份有限公司 | Strontium-yttrium-europium borate fluorescent powder and preparation method and application thereof |
| CN115612493A (en) * | 2022-09-08 | 2023-01-17 | 上海应用技术大学 | Ultraviolet excited Eu (II) single-doped red light emitting fluorescent powder and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4926091A (en) * | 1988-09-07 | 1990-05-15 | U.S. Philips Corporation | Luminescent terbium-activated borate, luminescent screen provided with such a borate and low-pressure mercury vapor discharge lamp provided with such a screen |
| CN102191052A (en) * | 2010-03-15 | 2011-09-21 | 海洋王照明科技股份有限公司 | Borate red luminescent material and preparation method thereof |
| CN107033900A (en) * | 2017-05-27 | 2017-08-11 | 陕西科技大学 | Three boric acid lanthanum-strontium base green light fluorescent powders of a kind of europium doping and preparation method thereof |
-
2018
- 2018-09-21 CN CN201811109172.7A patent/CN109181694A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4926091A (en) * | 1988-09-07 | 1990-05-15 | U.S. Philips Corporation | Luminescent terbium-activated borate, luminescent screen provided with such a borate and low-pressure mercury vapor discharge lamp provided with such a screen |
| CN102191052A (en) * | 2010-03-15 | 2011-09-21 | 海洋王照明科技股份有限公司 | Borate red luminescent material and preparation method thereof |
| CN107033900A (en) * | 2017-05-27 | 2017-08-11 | 陕西科技大学 | Three boric acid lanthanum-strontium base green light fluorescent powders of a kind of europium doping and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114410301A (en) * | 2021-11-25 | 2022-04-29 | 济南鲁新新型建材股份有限公司 | Strontium-yttrium-europium borate fluorescent powder and preparation method and application thereof |
| CN115612493A (en) * | 2022-09-08 | 2023-01-17 | 上海应用技术大学 | Ultraviolet excited Eu (II) single-doped red light emitting fluorescent powder and preparation method and application thereof |
| CN115612493B (en) * | 2022-09-08 | 2024-03-26 | 上海应用技术大学 | Ultraviolet excited Eu (II) single doped red light emitting fluorescent powder and preparation method and application thereof |
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