CN108018040A - A kind of fluorescent ceramic material, its preparation method and a kind of low color temperature white light LED - Google Patents
A kind of fluorescent ceramic material, its preparation method and a kind of low color temperature white light LED Download PDFInfo
- Publication number
- CN108018040A CN108018040A CN201711321597.XA CN201711321597A CN108018040A CN 108018040 A CN108018040 A CN 108018040A CN 201711321597 A CN201711321597 A CN 201711321597A CN 108018040 A CN108018040 A CN 108018040A
- Authority
- CN
- China
- Prior art keywords
- fluorescence ceramics
- powder
- ceramic material
- sintering
- white light
- 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
- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 74
- 239000000843 powder Substances 0.000 claims abstract description 57
- 239000000126 substance Substances 0.000 claims abstract description 4
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 3
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 3
- 229910052693 Europium Inorganic materials 0.000 claims abstract description 3
- 229910052688 Gadolinium Inorganic materials 0.000 claims abstract description 3
- 229910052765 Lutetium Inorganic materials 0.000 claims abstract description 3
- 229910052779 Neodymium Inorganic materials 0.000 claims abstract description 3
- 229910052777 Praseodymium Inorganic materials 0.000 claims abstract description 3
- 229910052772 Samarium Inorganic materials 0.000 claims abstract description 3
- 229910052771 Terbium Inorganic materials 0.000 claims abstract description 3
- 229910052775 Thulium Inorganic materials 0.000 claims abstract description 3
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 3
- 229910052706 scandium Inorganic materials 0.000 claims abstract description 3
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 3
- 238000009413 insulation Methods 0.000 claims description 25
- 239000011777 magnesium Substances 0.000 claims description 23
- 235000015895 biscuits Nutrition 0.000 claims description 22
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 20
- 238000005245 sintering Methods 0.000 claims description 20
- 230000005284 excitation Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 13
- 238000005422 blasting Methods 0.000 claims description 10
- 239000000395 magnesium oxide Substances 0.000 claims description 10
- 239000005416 organic matter Substances 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 238000000137 annealing Methods 0.000 claims description 2
- 238000000498 ball milling Methods 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 239000004482 other powder Substances 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 abstract description 5
- 239000011368 organic material Substances 0.000 abstract description 5
- 239000005022 packaging material Substances 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 26
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 24
- 229910000019 calcium carbonate Inorganic materials 0.000 description 16
- 239000002223 garnet Substances 0.000 description 10
- 238000002441 X-ray diffraction Methods 0.000 description 9
- 238000000227 grinding Methods 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 8
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 8
- 229910052681 coesite Inorganic materials 0.000 description 8
- 229910052906 cristobalite Inorganic materials 0.000 description 8
- 238000000280 densification Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 238000007873 sieving Methods 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- 238000003746 solid phase reaction Methods 0.000 description 8
- 229910052682 stishovite Inorganic materials 0.000 description 8
- 229910052905 tridymite Inorganic materials 0.000 description 8
- 238000009877 rendering Methods 0.000 description 7
- 238000000295 emission spectrum Methods 0.000 description 6
- 238000000695 excitation spectrum Methods 0.000 description 6
- 239000012190 activator Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910002637 Pr6O11 Inorganic materials 0.000 description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 229910003443 lutetium oxide Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7774—Aluminates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/20—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in magnesium oxide, e.g. forsterite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3215—Barium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3229—Cerium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6562—Heating rate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
- C04B2235/6582—Hydrogen containing atmosphere
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9646—Optical properties
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Luminescent Compositions (AREA)
Abstract
The present invention provides a kind of fluorescent ceramic material, its chemical formula is：(A2‑xRexM)(Mg2D3)O12, wherein A is at least one of for Y, Lu, Sc, Gd, Ga, at least one of Re Eu, Ce, Pr, Sm, Dy, Tm, Tb, Nd, at least one of M Ca, Sr, Ba, at least one of D Ti, Si, Ge, 0.001≤x<2.The fluorescence ceramics can effectively be excited by blue chip, and low color temperature white light LED can be made with reference to blue chip；At the same time, the fluorescence ceramics have the incomparable machinery of fluorescent powder and mechanical property, can directly it be packaged with blue chip, substitute the encapsulation mode that current fluorescent powder adds organic material, efficiently solve organic packaging materials weak heat-dissipating, the problem of light efficiency reduction caused by continuous high temperature and color drift, significantly extend the white light LED part service life.
Description
Technical field
The present invention relates to transparent fluorescent ceramic material, particularly a kind of fluorescent ceramic material, its preparation method and use it
Prepare the application of low color temperature white light LED.
Background technology
White light LEDs as forth generation lighting source have the advantages of energy-saving and environmental protection, long lifespan and response are rapid,
The development to attract people's attention is achieved, is widely used in various light scenes.The manufacture method of commercialization white light LEDs is usually adopted at present
More than one fluorescent powder is encapsulated on blue chip using organic materials such as epoxy resin or silica gel with encapsulation technology, by
Shine and the unnecessary blue light of blue chip excitated fluorescent powder obtain white light.But this packaged type is in actual use
It there are problems that：First, organic packaging materials heat dissipation performance is poor, and prolonged periods, which light lower temperature, can be higher than 150 DEG C,
Organic material easily aged deterioration at high temperature, causes luminous efficiency of source reduction and color drift, greatly reduces the use of white light LEDs
Service life；Secondly as the heat dissipation performance of encapsulating material is poor, fluorescent powder is also constantly in hot environment in encapsulating material, causes
Fluorescent powder aging, causes temperature quenching, equally causes light efficiency to reduce and color drift phenomenon；Furthermore fluorescent powder is in encapsulating material
It is scattered uneven, when particularly high-volume makes, fluorescent powder is in epoxy resin and silica gel since precipitation causes scattered inequality
It is even, cause light source luminescent irregular colour even.The application and popularization of white light LEDs of the above problem all strong influences, also limit
Its development in large power white light LED field.
2006, Anant A.Setlur et al. reported Lu first2CaMg2(Si,Ge)3O12:Ce3+Orange fluorescent powder
(refer to document Crystal Chemistry and Luminescence of Ce3+-Doped Lu2CaMg2(Si,Ge)3O12And Its Use in LED Based Lighting, Chem.Mater.2006,18,3314-3322), since it is unique
Luminescent properties, propose to be applied in white light LEDs field.2016, Wei Xia et al. also ground this fluorescent powder
Study carefully (Synthesis and luminescence properties of (Lu0.95-xCe0.05)2Ca1+ 2xMg2Si3O12silicate garnet phosphors and its applications,Functional Materials
Letters Vol.9, No.3 (2016)), and it is subjected to single powder encapsulation with traditional YAG fluorescent powder and is contrasted, in chromaticity coordinates and light
For effect under conditions of, the white light LED color temperature of the fluorescent powder packaging is lower.But white light LEDs prepared by the orange fluorescent powder
It is difficult to avoid the above problem.
The content of the invention
The present invention provides a kind of fluorescent ceramic material, can be stimulated by blue light, and has the characteristic of the high colour developing of low colour temperature, can use
, can directly and blue light simultaneously because with the incomparable machinery of fluorescent powder and mechanical property in making low color temperature white light LED
Chip is packaged, and substitutes the encapsulation mode that current fluorescent powder adds organic material, so as to effectively solve organic packaging materials heat dissipation
The problem of difference, light efficiency reduction caused by continuous high temperature and color drift, it can significantly extend the white light LED part service life.
The technical scheme is that：A kind of fluorescent ceramic material, its chemical formula are (A2-xRexM)(Mg2D3)O12, in, A
For the combination of a kind of element or two or more elements in Y, Lu, Sc, Gd, Ga, Re is rare earth element Eu, Ce, Pr, Sm, Dy,
The combination of a kind of element or two or more elements in Tm, Tb, Nd, a kind of element or two or more members in M Ca, Sr, Ba
The combination of element, the combination of a kind of element or two or more elements in D Ti, Si, Ge；Also, 0.001≤x≤0.2, as
It is preferred that 0.01≤x≤0.1.
The fluorescent ceramic material is garnet structure, belongs to cubic system, space group Ia3d.
The excitation wavelength of the fluorescent ceramic material can be effectively excited by blue light in 400-550nm, is issued in blue light excitation
It is 500-700nm to penetrate wave-length coverage.
The spectrum of the fluorescent ceramic material can be adjusted by the species and concentration for adjusting matrix components and rare earth element, is reached
Develop the color to low colour temperature is high.
Present invention also offers a kind of method for preparing above-mentioned fluorescent ceramic material, include the following steps：
(1) (A is pressed2-xRexM)(Mg2D3)O12Stoichiometric ratio, by the oxide of A or corresponding salt, the oxide of Re
Either corresponding salt, the oxide of M or corresponding salt, the oxide of D or corresponding salt, magnesia or the corresponding salt of magnesium
Mixed, obtain nanometer or the other powder of submicron order；
(2) by the powder calcination, the organic matter and volatile matter in powder are removed, and carries out tabletting and makes biscuit of ceramics；
(3) biscuit of ceramics is sintered and annealed, obtain fluorescence ceramics；
(4) fluorescence ceramics are processed by shot blasting, to improve transmitance, control thickness.
In the step (1), the method for obtaining powder is unlimited, including ball-milling method, sol-gal process or sluggish precipitation etc..
In the step (2), preferably, calcining heat is 600 DEG C -1200 DEG C.
In the step (2), biscuit production method is unlimited, including isometric unidirectional, isometric bidirectional pressing and isostatic cool pressing
Deng.
In the step (3), sintering method is unlimited, including vacuum-sintering, reducing atmosphere sintering, hot pressed sintering and heat etc.
Static pressure sintering etc..Preferably, sintering process to be warming up to 600 DEG C -1200 DEG C, keeps the temperature 1h-24h, then heat to 1300 DEG C -
1450 DEG C, insulation 2h-24h is cooled to room temperature afterwards.
In the step (3), method for annealing is unlimited, including carries out in atmosphere, in reducing atmosphere, in oxygen atmosphere, moves back
Fiery temperature is preferably 900 DEG C -1300 DEG C, and the preferred 2h-20h of soaking time, is cooled to room temperature, obtains fluorescence ceramics afterwards.
Compared with prior art, the present invention has the advantages that：
(1) block shape fluorescent ceramic material is obtained by the adjustment of matrix components and the species and concentration of rare earth element, with
Fluorescent powder is compared, which has excellent machinery and mechanical property, can be directly packaged with blue chip,
Substitute current fluorescent powder and add the encapsulation mode of organic material, so as to efficiently solve organic packaging materials weak heat-dissipating, continuous high temperature
The problem of caused light efficiency reduction and color drift, it can significantly extend the white light LED part service life.Meanwhile compared with fluorescent powder, it is glimmering
The packaged type of light ceramic has more preferable uniformity, ensures light source uniform in light emission.
(2) fluorescent ceramic material and the white light LED part colour temperature that blue chip assembles are relatively low, in 2600-3000K
Between, colour rendering index and YAG close with incandescent lamps light color temperature:Ce3+Fluorescence ceramics are compared to being obviously improved, in high-power height
Performance white light LEDs have good application prospect in field.
Brief description of the drawings
Fig. 1 is the excitation and emission spectra figure of fluorescence ceramics piece in the embodiment of the present invention 1；
Fig. 2 is the XRD spectra of fluorescence ceramics piece in the embodiment of the present invention 1；
Fig. 3 is the excitation and emission spectra figure of fluorescence ceramics piece in the embodiment of the present invention 2；
Fig. 4 is the excitation and emission spectra figure of fluorescence ceramics piece in the embodiment of the present invention 3；
Fig. 5 is the pictorial diagram of the fluorescence ceramics piece in the embodiment of the present invention 4.
Embodiment
The present invention is described in further detail with reference to embodiment, it should be pointed out that embodiment described below purport
Easy to the understanding of the present invention, and any restriction effect is not played to it.
Embodiment 1：
Fluorescence ceramics piece (Lu1.99Ce0.01Ca)(Mg2Si3)O12Preparation method it is as follows：
(1) Lu is stoichiometrically weighed2O3：3.9594g CeO2：0.0172g, CaCO3：1.0087g MgO：
0.8061g, SiO2：1.8025g；With grinding pot plus agate ball, it is ground by abrasive media of absolute ethyl alcohol with mixing, until
Powder average grain diameter is less than 1 μm；
(2) it is gained slurry is dry and sieve, the 1000 DEG C of insulation 2h in atmosphere of the powder after sieving are removed in powder
Organic matter, and allow CaCO3Fully decompose；2min is kept using the isometric unidirectional 10Mpa pressure that applies after gained powder is sieved,
It is dry-pressing formed, it is pressed into biscuit, pressure 200MPa, dwell time 2min in isostatic cool pressing equipment；
(3) gained biscuit of ceramics is sintered in a vacuum furnace, 1 DEG C/min of heating rate, 4h is kept the temperature at 1200 DEG C,
1350 DEG C of insulation 10h, complete solid phase reaction, exclude stomata and reach densification；By sample after vacuum-sintering in 5%H2/ 95%N2's
The lower 1200 DEG C of insulations 6h of reducing atmosphere, reduces rare earth element；
(4) fluorescent ceramic material after step (3) is annealed is processed by shot blasting, obtains (Lu1.99Ce0.01Ca)
(Mg2Si3)O12Fluorescence ceramics piece, its thickness are 1mm.
The excitation and emission spectra figure of fluorescence ceramics piece obtained above is as shown in Figure 1, excitation peak shows the fluorescence ceramics
Can effectively it be excited by blue light, emission peak positions are to be orange-yellow under 585nm, blue light excitation, and colour temperature is relatively low, and colour rendering index is higher.
The XRD spectra of fluorescence ceramics piece obtained above belongs to as shown in Fig. 2, show that the ceramic material is garnet structure
In cubic system, space group Ia3d.
To fluorescence ceramics piece obtained above carry out Data Detection, as a result for：Chromaticity coordinate：X=0.5261, y=
0.4689, colour temperature 2347K, colour rendering index 62.
Embodiment 2：
Fluorescence ceramics piece (Lu1.99Ce0.01Ca0.9Ba0.1)(Mg2Si3)O12Preparation method it is as follows：
(1) Lu is stoichiometrically weighed2O3：3.9594g CeO2：0.0172g, CaCO3：0.9074g, BaCO3：
0.0164g, MgO：0.8061g, SiO2：1.8025g.With grinding pot plus agate ball, ground by abrasive media of absolute ethyl alcohol
Mill is with mixing, until powder average grain diameter is less than 1 μm；
(2) it is gained slurry is dry and sieve, the 1000 DEG C of insulation 2h in atmosphere of the powder after sieving are removed in powder
Organic matter, and allow CaCO3Fully decompose；2min is kept using the isometric unidirectional 10Mpa pressure that applies after gained powder is sieved,
It is dry-pressing formed, it is pressed into biscuit, pressure 200MPa, dwell time 2min in isostatic cool pressing equipment；
(3) gained biscuit of ceramics is sintered in a vacuum furnace, 1 DEG C/min of heating rate, 4h is kept the temperature at 900 DEG C,
1450 DEG C of insulation 10h, complete solid phase reaction, exclude stomata and reach densification；By sample after vacuum-sintering under reducing atmosphere 5%
H2/ 95%N2, 1300 DEG C of insulation 6h, reduce activator；
(4) fluorescent ceramic material after step (3) is annealed is processed by shot blasting, obtains (Lu1.99Ce0.01Ca0.9Ba0.1)
(Mg2Si3)O12Fluorescence ceramics piece, its thickness are 1mm.
The XRD spectra of fluorescence ceramics piece obtained above is similar to Figure 2, and it is garnet structure to show the ceramic material,
Belong to cubic system, space group Ia3d.
The excitation and emission spectra figure of fluorescence ceramics piece obtained above is as shown in figure 3, excitation peak shows the fluorescence ceramics
Can effectively it be excited by blue light, emission peak positions are to be orange-yellow under 581nm, blue light excitation, and colour temperature is relatively low, and colour rendering index is higher.
To fluorescence ceramics piece obtained above carry out Data Detection, as a result for：Chromaticity coordinate is：X=0.5230, y=
0.4711, colour temperature 2384K, colour rendering index 64.
Embodiment 3：
Fluorescence ceramics piece (Lu1.99Ce0.005Pr0.005Ca)(Mg2Si3)O12Preparation method it is as follows：
(1) Lu is stoichiometrically weighed2O3：3.9594g CeO2：0.0086, Pr6O11：0.0085g, CaCO3：
1.0087g MgO：0.8061g, SiO2：1.8025g.With grinding pot plus agate ball, ground by abrasive media of absolute ethyl alcohol
Mill is with mixing, until powder average grain diameter is less than 1 μm；
(2) it is gained slurry is dry and sieve, the 900 DEG C of insulation 2h in atmosphere of the powder after sieving are removed in powder
Organic matter, and allow CaCO3Fully decompose；2min is kept using the isometric unidirectional 10Mpa pressure that applies after gained powder is sieved,
It is dry-pressing formed, it is pressed into biscuit, pressure 200MPa, dwell time 2min in isostatic cool pressing equipment；
(3) gained biscuit of ceramics is sintered in a vacuum furnace, 1 DEG C/min of heating rate, 2h is kept the temperature at 600 DEG C,
1350 DEG C of insulation 10h, complete solid phase reaction, exclude stomata and reach densification；Will sample 5%H under reducing atmosphere after sintering2/
95%N2, 1200 DEG C of insulation 6h, reduce activator；
(4) fluorescence ceramics after step (3) is annealed are processed by shot blasting, obtain (Lu1.99Ce0.005Pr0.005Ca)
(Mg2Si3)O12Fluorescence ceramics piece, its thickness are 1mm.
The XRD spectra of fluorescence ceramics piece obtained above is similar to Figure 2, and it is garnet structure to show the ceramic material,
Belong to cubic system, space group Ia3d.
The excitation and emission spectra figure of above-mentioned fluorescence ceramics is as shown in figure 4, excitation peak shows that the fluorescence ceramics can be by blue light
Effectively excitation, emission peak positions have the characteristic peak of Pr ions in 563nm, and it is greenish orange yellow that blue light excitation is lower, and colour temperature is relatively low,
Colour rendering index is higher.
To fluorescence ceramics piece obtained above carry out Data Detection, as a result for：Chromaticity coordinate is：X=0.5084, y=
0.4528, colour temperature 2412K, colour rendering index 56.
Embodiment 4：
Fluorescence ceramics piece (Lu1.99Ce0.01Ca)(Mg2Si1Ge2)O12Preparation method it is as follows：
(1) Lu is stoichiometrically weighed2O3：3.9594g CeO2：0.0172g, CaCO3：1.0087g MgO：
0.8061g, SiO2：0.6008g, GeO2：2.0928.With grinding pot plus agate ball, it is ground by abrasive media of absolute ethyl alcohol
With mixing, until powder average grain diameter is less than 1 μm；
(2) it is gained slurry is dry and sieve, the 1000 DEG C of insulation 2h in atmosphere of the powder after sieving are removed in powder
Organic matter, and allow CaCO3Fully decompose；2min is kept using the isometric unidirectional 10Mpa pressure that applies after gained powder is sieved,
It is dry-pressing formed, it is pressed into biscuit, pressure 200MPa, dwell time 2min in isostatic cool pressing equipment；
(3) gained biscuit of ceramics is sintered in a vacuum furnace, 1 DEG C/min of heating rate, 4h is kept the temperature at 1100 DEG C,
1400 DEG C of insulation 10h, complete solid phase reaction, exclude stomata and reach densification；In atmosphere, 1200 DEG C keep the temperature sample after sintering
6h anneals；
(4) fluorescence ceramics after step (3) is annealed are processed by shot blasting, obtain (Lu1.99Ce0.01Ca)(Mg2Si1Ge2)
O12Fluorescence ceramics piece, its thickness are 1mm.
The XRD spectra of fluorescence ceramics piece obtained above is similar to Figure 2, and it is garnet structure to show the ceramic material,
Belong to cubic system, space group Ia3d.
Circular portion in Fig. 5 is the material object of above-mentioned fluorescence ceramics piece, as shown in figure 5, the potsherd is with higher
Transmitance, through the potsherd it can be seen that pattern on square shape paper.
Obtained potsherd can prepare the warm white LED device of the high colour developing of low colour temperature by detection.
Embodiment 5：
Fluorescence ceramics piece (YLu0.99Ce0.01Ca)(Mg2Si3)O12Preparation method it is as follows：
(1) Y is stoichiometrically weighed2O3：1.129g Lu2O3：1.9698g CeO2：0.0172g, CaCO3：
1.0087g MgO：0.8061g, SiO2：1.8025g.With grinding pot plus agate ball, ground by abrasive media of absolute ethyl alcohol
Mill is with mixing, until powder average grain diameter is less than 1 μm；
(2) it is gained slurry is dry and sieve, the 1000 DEG C of insulation 2h in atmosphere of the powder after sieving are removed in powder
Organic matter, and allow CaCO3Fully decompose；2min is kept using the isometric unidirectional 10Mpa pressure that applies after gained powder is sieved,
It is dry-pressing formed, it is pressed into biscuit, pressure 200MPa, dwell time 2min in isostatic cool pressing equipment；
(3) gained biscuit of ceramics is sintered in a vacuum furnace, 1 DEG C/min of heating rate, 10h is kept the temperature at 1350 DEG C,
Solid phase reaction is completed, stomata is excluded and reaches densification；By the 5%H under reducing atmosphere of sample after vacuum-sintering2/ 95%N2,
1000 DEG C of insulation 2h, 1300 DEG C of insulation 6h, reduce activator；
(4) fluorescence ceramics after step (3) is annealed are processed by shot blasting, obtain (YLu0.99Ce0.01Ca)(Mg2Si3)O12
Fluorescence ceramics piece, its thickness are 2mm.
The XRD spectra of fluorescence ceramics piece obtained above is similar to Figure 2, and it is garnet structure to show the ceramic material,
Belong to cubic system, space group Ia3d.
Obtained potsherd can prepare the warm white LED device of the high colour developing of low colour temperature by detection.
Embodiment 6：
Fluorescence ceramics piece (Lu1.8Ce0.1Pr0.05Tb0.05Ca)(Mg2Si3)O12Preparation method it is as follows：
(1) Lu is stoichiometrically weighed2O3：3.5768g CeO2：0.172g, Pr6O11：0.085g, Tb2O3：
0.0914g, CaCO3：1.0087g MgO：0.8061g, SiO2：1.8025g.With grinding pot plus agate ball, using absolute ethyl alcohol to grind
Grinding media is ground with mixing, until powder average grain diameter is less than 1 μm；
(2) it is gained slurry is dry and sieve, the 1000 DEG C of insulation 2h in atmosphere of the powder after sieving are removed in powder
Organic matter, and allow CaCO3Fully decompose；2min is kept using the isometric unidirectional 10Mpa pressure that applies after gained powder is sieved,
It is dry-pressing formed, it is pressed into biscuit, pressure 200MPa, dwell time 2min in isostatic cool pressing equipment；
(3) gained biscuit of ceramics is sintered in a vacuum furnace, 1 DEG C/min of heating rate, 3h is kept the temperature at 800 DEG C,
1450 DEG C of insulation 12h, complete solid phase reaction, exclude stomata and reach densification；By sample after vacuum-sintering in decomposed ammonia,
1100 DEG C of insulation 6h, reduce activator；
(4) fluorescence ceramics after step (3) is annealed are processed by shot blasting, obtain (Lu1.8Ce0.1Pr0.05Tb0.05Ca)
(Mg2Si3)O12Fluorescence ceramics piece, its thickness are 1mm.
The XRD spectra of fluorescence ceramics piece obtained above is similar to Figure 2, and it is garnet structure to show the ceramic material,
Belong to cubic system, space group Ia3d.
Obtained potsherd can prepare the warm white LED device of the high colour developing of low colour temperature by detection.
Embodiment 7：
Fluorescence ceramics piece (Lu1.999Ce0.001Ca)(Mg2Si3)O12Preparation method it is as follows：
(1) Lu is stoichiometrically weighed2O3：3.9773g CeO2：0.00172g, CaCO3：1.0087g MgO：
0.8061g, SiO2：1.8025g.With grinding pot plus agate ball, it is ground by abrasive media of absolute ethyl alcohol with mixing, until
Powder average grain diameter is less than 1 μm；
(2) it is gained slurry is dry and sieve, the 1000 DEG C of insulation 2h in atmosphere of the powder after sieving are removed in powder
Organic matter, and allow CaCO3Fully decompose；2min is kept using the isometric unidirectional 10Mpa pressure that applies after gained powder is sieved,
It is dry-pressing formed, it is pressed into biscuit, pressure 200MPa, dwell time 2min in isostatic cool pressing equipment；
(3) gained biscuit of ceramics is sintered in a vacuum furnace, 1 DEG C/min of heating rate, 4h is kept the temperature at 1200 DEG C,
1350 DEG C of insulation 10h, complete solid phase reaction, exclude stomata and reach densification；By sample after vacuum-sintering under reducing atmosphere 5%
H2/ 95%N2, 1100 DEG C of insulation 6h, reduce activator；
(4) fluorescence ceramics after step (3) is annealed are processed by shot blasting, obtain (Lu1.999Ce0.001Ca)(Mg2Si3)O12
Fluorescence ceramics piece, its thickness are 2mm.
The XRD spectra of fluorescence ceramics piece obtained above is similar to Figure 2, and it is garnet structure to show the ceramic material,
Belong to cubic system, space group Ia3d.
Obtained potsherd can prepare the warm white LED device of the high colour developing of low colour temperature by detection.
Embodiment 8：
Fluorescence ceramics piece (GdLu0.99Ce0.01Ca)(Mg2Si3)O12Preparation method it is as follows：
(1) Gd is stoichiometrically weighed2O3：1.8125g Lu2O3：1.9698g CeO2：0.0172g, CaCO3：
1.0087g MgO：0.8061g, SiO2：1.8025g.With grinding pot plus agate ball, ground by abrasive media of absolute ethyl alcohol
Mill is with mixing, until powder average grain diameter is less than 1 μm；
(2) it is gained slurry is dry and sieve, the 1000 DEG C of insulation 2h in atmosphere of the powder after sieving are removed in powder
Organic matter, and allow CaCO3Fully decompose；2min is kept using the isometric unidirectional 10Mpa pressure that applies after gained powder is sieved,
It is dry-pressing formed, it is pressed into biscuit, pressure 200MPa, dwell time 2min in isostatic cool pressing equipment；
(3) gained biscuit of ceramics is sintered in a vacuum furnace, 1 DEG C/min of heating rate, 2h is kept the temperature at 700 DEG C,
1350 DEG C of insulation 10h, complete solid phase reaction, exclude stomata and reach densification；By sample after vacuum-sintering in atmosphere, 1200 DEG C
Keep the temperature 6h；
(4) fluorescence ceramics after step (3) is annealed are processed by shot blasting, obtain (GdLu0.99Ce0.01Ca)(Mg2Si3)
O12Fluorescence ceramics piece, its thickness are 1mm.
The XRD spectra of fluorescence ceramics piece obtained above is similar to Figure 2, and it is garnet structure to show the ceramic material,
Belong to cubic system, space group Ia3d.
Obtained potsherd can prepare the warm white LED device of the high colour developing of low colour temperature by detection.
Technical scheme is described in detail in embodiment described above, it should be understood that the above is only
For the specific embodiment of the present invention, it is not intended to limit the invention, all any modifications made in the spirit of the present invention,
Supplement or similar fashion replacement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of fluorescent ceramic material, it is characterised in that its chemical formula is：
(A2-xRexM)(Mg2D3)O12
Wherein, the combination of a kind of element or two or more elements in A Y, Lu, Sc, Gd, Ga；Re for rare earth element Eu, Ce,
The combination of a kind of element or two or more elements in Pr, Sm, Dy, Tm, Tb, Nd；M is a kind of element or two in Ca, Sr, Ba
The combination of kind above element；D is the combination of a kind of element or two or more elements in Ti, Si, Ge；Also, 0.001≤x<2.
2. fluorescence ceramics according to claim 1, it is characterised in that 0.001≤x≤0.2, preferably 0.01≤x≤
0.1。
3. fluorescence ceramics according to claim 1, it is characterised in that the excitation wavelength of the fluorescent ceramic material is in 400-
In the range of 550nm.
4. fluorescence ceramics according to claim 1, it is characterised in that the fluorescent ceramic material is launched under blue light excitation
Wavelength is in the range of 500-700nm.
5. fluorescence ceramics according to claim 1, it is characterised in that the emission peak positions of the fluorescence ceramics can pass through
Change the element in the chemical formula and rare earth element species and concentration is regulated and controled.
6. according to the preparation method of the fluorescence ceramics described in claim 1-5, it is characterised in that include the following steps：
(1) (A is pressed2-xRexM)(Mg2D3)O12Stoichiometric ratio, by the oxide of A either corresponding salt, Re oxide or
Corresponding salt, either corresponding salt, the oxide of D or corresponding salt, magnesia or the corresponding salt of magnesium carry out the oxide of M
Mixing, obtains nanometer or the other powder of submicron order；
(2) by the powder calcination, the organic matter and volatile matter in powder are removed, and carries out tabletting and makes biscuit of ceramics；
(3) biscuit of ceramics is sintered and annealed, obtain fluorescence ceramics；
(4) fluorescence ceramics are processed by shot blasting.
7. the preparation method of fluorescence ceramics according to claim 6, it is characterised in that in the step (1), obtain powder
Method include ball-milling method, sol-gal process or sluggish precipitation；
Preferably, in the step (2), calcining heat is 600 DEG C -1200 DEG C, keeps the temperature 1h-24h.
Preferably, in the step (2), biscuit production method includes isometric unidirectional, isometric bidirectional pressing and isostatic cool pressing.
8. the preparation method of fluorescence ceramics according to claim 6, it is characterised in that in the step (3), sintering method
Including vacuum-sintering, reducing atmosphere sintering, hot pressed sintering and HIP sintering；
Preferably, sintering process is is warming up to 600 DEG C -1200 DEG C, insulation 1h-24h, then heats to 1300 DEG C -1450 DEG C,
Room temperature is cooled to after insulation 2h-24h；
Preferably, in the step (3), annealing temperature is 900 DEG C -1300 DEG C, the preferred 2h-20h of soaking time.
9. a kind of white light LEDs, are assembled as the fluorescent ceramic material described in any claim in claim 1-5 and blue chip
Obtain.
10. white light LEDs according to claim 9, it is characterised in that it is characterized in that, colour temperature is between 2600-3000K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711321597.XA CN108018040A (en) | 2017-12-12 | 2017-12-12 | A kind of fluorescent ceramic material, its preparation method and a kind of low color temperature white light LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711321597.XA CN108018040A (en) | 2017-12-12 | 2017-12-12 | A kind of fluorescent ceramic material, its preparation method and a kind of low color temperature white light LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108018040A true CN108018040A (en) | 2018-05-11 |
Family
ID=62073210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711321597.XA Pending CN108018040A (en) | 2017-12-12 | 2017-12-12 | A kind of fluorescent ceramic material, its preparation method and a kind of low color temperature white light LED |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108018040A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437900A (en) * | 2018-12-12 | 2019-03-08 | 中国科学院宁波材料技术与工程研究所 | A kind of fluorescence ceramics block, preparation method and its application in laser lighting |
| CN110642624A (en) * | 2019-10-31 | 2020-01-03 | 中国科学院长春光学精密机械与物理研究所 | Fluorescent transparent ceramic emitting blue-green light and preparation method thereof |
| CN111285682A (en) * | 2018-12-07 | 2020-06-16 | 上海航空电器有限公司 | Full-spectrum complex phase fluorescent ceramic for laser illumination and display and preparation method thereof |
| CN113683398A (en) * | 2020-05-18 | 2021-11-23 | 中国科学院宁波材料技术与工程研究所 | Near-infrared fluorescent ceramic block, preparation method and application |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1922286A (en) * | 2003-10-29 | 2007-02-28 | 吉尔科有限公司 | Garnet phosphor materials having enhanced spectral characteristics |
| US20110227476A1 (en) * | 2010-03-19 | 2011-09-22 | Nitto Denko Corporation | Light emitting device using orange-red phosphor with co-dopants |
| TW201139621A (en) * | 2010-03-19 | 2011-11-16 | Nitto Denko Corp | Garnet-based phosphor ceramic sheets for light emitting device |
| CN102618274A (en) * | 2012-03-13 | 2012-08-01 | 湖南信多利新材料有限公司 | Green phosphor for LED (Light-Emitting Diode) and preparation method of green phosphor |
| CN103834406A (en) * | 2012-11-23 | 2014-06-04 | 石胜利 | Fluorescent material crystal and preparation method thereof |
| CN106518037A (en) * | 2016-11-03 | 2017-03-22 | 中国科学院长春光学精密机械与物理研究所 | Silicate fluorescent ceramic with full-spectrum emission effect and preparation method thereof |
-
2017
- 2017-12-12 CN CN201711321597.XA patent/CN108018040A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1922286A (en) * | 2003-10-29 | 2007-02-28 | 吉尔科有限公司 | Garnet phosphor materials having enhanced spectral characteristics |
| US20110227476A1 (en) * | 2010-03-19 | 2011-09-22 | Nitto Denko Corporation | Light emitting device using orange-red phosphor with co-dopants |
| TW201139621A (en) * | 2010-03-19 | 2011-11-16 | Nitto Denko Corp | Garnet-based phosphor ceramic sheets for light emitting device |
| CN102618274A (en) * | 2012-03-13 | 2012-08-01 | 湖南信多利新材料有限公司 | Green phosphor for LED (Light-Emitting Diode) and preparation method of green phosphor |
| CN103834406A (en) * | 2012-11-23 | 2014-06-04 | 石胜利 | Fluorescent material crystal and preparation method thereof |
| CN106518037A (en) * | 2016-11-03 | 2017-03-22 | 中国科学院长春光学精密机械与物理研究所 | Silicate fluorescent ceramic with full-spectrum emission effect and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| ANANT A. SETLUR ET AL.: "Crystal Chemistry and Luminescence of Ce3+-Doped Lu2CaMg2(Si,Ge)3O12 and Its Use in LED Based Lighting", 《CHEM. MATER.》 * |
| WEI XIA ET AL.: "Synthesis and luminescence properties of (Lu0.95-xCe0.05)2Ca1+2xMg2Si3O12 silicate garnet phosphors and its applications", 《FUNCTIONAL MATERIALS LETTERS》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111285682A (en) * | 2018-12-07 | 2020-06-16 | 上海航空电器有限公司 | Full-spectrum complex phase fluorescent ceramic for laser illumination and display and preparation method thereof |
| CN109437900A (en) * | 2018-12-12 | 2019-03-08 | 中国科学院宁波材料技术与工程研究所 | A kind of fluorescence ceramics block, preparation method and its application in laser lighting |
| CN110642624A (en) * | 2019-10-31 | 2020-01-03 | 中国科学院长春光学精密机械与物理研究所 | Fluorescent transparent ceramic emitting blue-green light and preparation method thereof |
| CN113683398A (en) * | 2020-05-18 | 2021-11-23 | 中国科学院宁波材料技术与工程研究所 | Near-infrared fluorescent ceramic block, preparation method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109896852B (en) | Complex phase fluorescent ceramic for blue light excited white light illumination, preparation method and light source device | |
| CN108863317B (en) | Fluorescent composite ceramic and preparation method and application thereof | |
| Yang et al. | Luminescence investigations of Sr3SiO5: Eu2+ orange–yellow phosphor for UV-based white LED | |
| CN108018040A (en) | A kind of fluorescent ceramic material, its preparation method and a kind of low color temperature white light LED | |
| CN100403563C (en) | LED with white light and fluorescent powder concerned and preparation thereof | |
| CN106518037B (en) | A kind of silicate fluorescent ceramics of full spectral emissions and preparation method thereof | |
| CN109437900A (en) | A kind of fluorescence ceramics block, preparation method and its application in laser lighting | |
| CN111574062B (en) | Nitride red-light glass and application thereof | |
| CN106221695B (en) | The preparation method of aluminum-nitride-based fluorescent powder | |
| CN108264899A (en) | A kind of fluorescence ceramics applied to LED and preparation method thereof | |
| CN108753296B (en) | Red light luminescent material capable of being excited by near ultraviolet or blue light chip and preparation method and application thereof | |
| CN102391861B (en) | Nitrogen compound luminescent material, preparation method thereof and lighting source made therefrom | |
| CN111234814B (en) | Mn (manganese)4+Doped nitrogen oxide red fluorescent powder and preparation method thereof | |
| CN108503352A (en) | A kind of garnet-base red fluorescence ceramic material and preparation method thereof | |
| KR20140122034A (en) | Fluorescent material for white light emitting diode and preparation method thereof | |
| CN102173773A (en) | Transparent ceramic for high brightness white light-emitting diode and preparation method thereof | |
| CN114686225A (en) | Near-infrared fluorescent powder and preparation method and application thereof | |
| Zhao et al. | Synthesis and luminescence properties of color-tunable Ce, Mn co-doped LuAG transparent ceramics by sintering under atmospheric pressure | |
| Dai et al. | Fabrication and properties of transparent Tb: YAG fluorescent ceramics with different doping concentrations | |
| DU et al. | Ce: YAG transparent ceramics enabling high luminous efficacy for high-power LEDs/LDs | |
| CN106753327B (en) | Surface heat treatment modification method of fluorescent powder and COB light source prepared by same | |
| CN104830335B (en) | A kind of borate base fluorescent powder of europium doping and preparation method thereof | |
| CN104496474B (en) | A kind of ultraviolet conversion of white light LED transparent ceramic material and preparation method thereof | |
| CN113683407B (en) | High-brightness high-thermal-stability yellow-green fluorescent ceramic and preparation method thereof | |
| US20240002722A1 (en) | Green fluorescent ceramic material, preparation method therefor and use 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180511 |