CN106566544B - A kind of nitrogen oxides red fluorescence material - Google Patents
A kind of nitrogen oxides red fluorescence material Download PDFInfo
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- CN106566544B CN106566544B CN201610984603.9A CN201610984603A CN106566544B CN 106566544 B CN106566544 B CN 106566544B CN 201610984603 A CN201610984603 A CN 201610984603A CN 106566544 B CN106566544 B CN 106566544B
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- nitrogen oxides
- red fluorescence
- fluorescence material
- fluorescent material
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 title claims abstract description 31
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000000126 substance Substances 0.000 claims abstract description 17
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 4
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 3
- 229910052691 Erbium Inorganic materials 0.000 claims abstract description 3
- 229910052689 Holmium Inorganic materials 0.000 claims abstract description 3
- 229910052779 Neodymium Inorganic materials 0.000 claims abstract description 3
- 229910052772 Samarium Inorganic materials 0.000 claims abstract description 3
- 229910052788 barium Inorganic materials 0.000 claims abstract description 3
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 3
- 229910052706 scandium Inorganic materials 0.000 claims abstract description 3
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 3
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 3
- 230000005284 excitation Effects 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 8
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 description 6
- 239000011777 magnesium Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 238000000498 ball milling Methods 0.000 description 3
- RSEIMSPAXMNYFJ-UHFFFAOYSA-N europium(III) oxide Inorganic materials O=[Eu]O[Eu]=O RSEIMSPAXMNYFJ-UHFFFAOYSA-N 0.000 description 3
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 description 3
- 229910000018 strontium carbonate Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- 238000000921 elemental analysis Methods 0.000 description 2
- 238000000295 emission spectrum Methods 0.000 description 2
- 238000000695 excitation spectrum Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 150000000703 Cerium Chemical class 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- GXUARMXARIJAFV-UHFFFAOYSA-L barium oxalate Chemical compound [Ba+2].[O-]C(=O)C([O-])=O GXUARMXARIJAFV-UHFFFAOYSA-L 0.000 description 1
- 229940094800 barium oxalate Drugs 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- QXDMQSPYEZFLGF-UHFFFAOYSA-L calcium oxalate Chemical compound [Ca+2].[O-]C(=O)C([O-])=O QXDMQSPYEZFLGF-UHFFFAOYSA-L 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 229910019990 cerium-doped yttrium aluminum garnet Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- NLQFUUYNQFMIJW-UHFFFAOYSA-N dysprosium(III) oxide Inorganic materials O=[Dy]O[Dy]=O NLQFUUYNQFMIJW-UHFFFAOYSA-N 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium(III) oxide Inorganic materials O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000010189 synthetic method 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
- C09K11/0883—Arsenides; Nitrides; Phosphides
-
- 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
- C09K11/7729—Chalcogenides
- C09K11/7731—Chalcogenides with alkaline earth metals
-
- 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
- C09K11/7784—Chalcogenides
- C09K11/7786—Chalcogenides with alkaline earth metals
Abstract
A kind of nitrogen oxides red fluorescence material, it is characterized in that chemical composition indicates are as follows: M2.90~3.00Nb2O5N2:xEu,yLn；Wherein M is Sr, Ba, and the combination of one of Ca or Mg or multiple element, the combination of Ln Ce, Nd, Sm, Dy, Ho, Er, one or more of Y or Sc element, x, y are mole coefficient, wherein 0.001≤x≤0.1,0≤y≤0.05.A kind of nitrogen oxides red fluorescence material provided by the invention, under the excitation in the ultraviolet-visible light region of 230 ~ 500nm, orange/red light of 550 ~ 720nm of transmitting range, luminous efficiency with higher, while there is excellent chemical stability and thermal stability.
Description
Technical field
The present invention relates to a kind of fluorescent material, in particular to a kind of nitrogen oxides red fluorescence material.
Background technique
The white light LEDs (White Light Emitting Diode, WLED) of fluorescent material conversion are as a kind of novel
Solid light source, it is energy saving, environmentally protective, the service life is long and small in size with it many advantages, such as, illumination and display field have it is huge
Application prospect.Wherein, the UV/blue of chip can be effectively converted into visible light, Jin Ertong by efficient fluorescent material
White light emission is realized in the mixing for crossing multiple color.
US5998925, US6998771 are using blue light activated cerium dropped yttrium aluminum garnet fluorescent material (Y3Al5O12:Ce,
(Y,Gd)3(Al,Ga)5O12: Ce, i.e. YAG:Ce), the compound hair of blue light that the yellow light and chip issued by the fluorescent material issues
White light out.But the transmitting main peak of the fluorescent material lacks red color components in 540nm or so, spectrum.Therefore, white light is caused
The colour temperature of LED is higher, and colour rendering index is lower.
US6351069 is related to a kind of sulfide red fluorescent material, which can be used as red color components and be added to white light LEDs
In, for reducing colour temperature, improve colour rendering index.But the light emission luminance of the all-sulphide phosphor is lower, thereby reduces white
The luminous efficiency of light LED；Meanwhile the chemical stability and ageing-resistant performance of sulfide are poor, are easy pollution chip, shorten LED
Service life.
US20110163344, US20110149550 give it is a series of can effectively be excited under UV-blue light it is dilute
Nitride, the nitrogen oxide fluorescent material of soil activation, they can emit a variety of visible lights from blue light to feux rouges, but the phosphor
Material needs to synthesize under conditions of high temperature and pressure, and manufacturing cost is higher.
Summary of the invention
The present invention provides a kind of nitrogen oxides red fluorescence material, the excitation in the ultraviolet-visible light region of 230 ~ 500nm
Under, orange/red light of 550 ~ 720nm of transmitting range, luminous efficiency with higher, at the same have excellent chemical stability and
Thermal stability.
The chemical composition of nitrogen oxides red fluorescence material of the invention indicates are as follows: M2.90~3.00Nb2O5N2:xEu,yLn；Its
Middle M is Sr, Ba, the combination of one of Ca or Mg or multiple element, Ln Ce, Nd, Sm, Dy, Ho, Er, one of Y or Sc
Or the combination of several elements, x, y are mole coefficient, wherein 0.001≤x≤0.1,0≤y≤0.05.
Currently preferred chemical composition are as follows: Sr2.97Nb2O5N2:0.03Eu。
Nitrogen oxides red fluorescence material in the present invention can effectively be swashed by the excitation light source within the scope of 230 ~ 500nm
Hair, launches the feux rouges of 550 ~ 720nm.
In the present invention, the transmitting main peak of Eu ion is influenced clearly by crystal structure and crystalline field environment.Therefore, lead to
The variation for crossing content and composition and Eu ion itself concentration cationic in adjustment nitrogen oxide fluorescent material can make to send out
Ejected wave length changes；By the doping of Ln ion, the absorption of Eu ion pair exciting light energy can be improved, and then obtain higher
Luminous intensity.
Detailed description of the invention
The X-ray diffractogram of Fig. 1 embodiment 1.
The emission spectrum of Fig. 2 embodiment 1.
The excitation spectrum of Fig. 3 embodiment 1.
The luminous intensity of Fig. 4 embodiment 3 and embodiment 1 compares.
The luminous intensity of Fig. 5 embodiment 3 and embodiment 12 compares.
The luminous intensity of Fig. 6 embodiment 3 and embodiment 17 compares.
Specific embodiment
Raw materials used in the present invention, what M, Ln, Eu were selected is oxide, carbonate, nitrate or the oxalates of the element；
That Nb is selected is Nb2O5。
The synthetic method of nitrogen oxide fluorescent material of the invention is to weigh each raw material in molar ratio, after mixing, is set
It is small in 1050 DEG C of sintering 10 ~ 12 in the reducing atmosphere for being connected with ammonia or 75% hydrogen and 25% nitrogen in alumina crucible
When, it through cooling, crushes, sieving can be obtained the fluorescent material.
The excitation spectrum of fluorescent material of the present invention, emission spectrum, temperature characterisitic, relatively are tested according to GB/T30075-2013
Brightness and chromaticity coordinate.
Embodiment 1 ~ 8
Strontium carbonate or strontium nitrate, Nb are weighed in molar ratio2O5And Eu2O3, after being sufficiently mixed, after being packed into crucible, it is put into logical
In the reducing atmosphere electric furnace for having 75% hydrogen and 25% nitrogen, 10 ~ 12 hours are kept the temperature in 1050 DEG C, through crushing after cooling, ball milling, sieve
Fluorescent material is obtained after point.The doping concentration for changing Eu ion, obtains the fluorescent material of different luminous intensities, to obtain Eu
The optimum doping concentration of ion, the chemical composition and relative luminance of fluorescent material are as shown in table 1.The elemental analysis knot of embodiment 3
Fruit is shown in Table 2.
The chemical composition and transmitting main peak of 1 embodiment 1 ~ 8 of table
| Embodiment | Chemical composition | Emit main peak | Relative luminance (%) |
| 1 | Sr2.99Nb2O5N2:0.01Eu | 615nm | 90 |
| 2 | Sr2.98Nb2O5N2:0.02Eu | 615nm | 96 |
| 3 | Sr2.97Nb2O5N2:0.03Eu | 615nm | 100 |
| 4 | Sr2.96Nb2O5N2:0.04Eu | 615nm | 95 |
| 5 | Sr2.95Nb2O5N2:0.05Eu | 615nm | 92 |
| 6 | Sr2.94Nb2O5N2:0.06Eu | 615nm | 87 |
| 7 | Sr2.93Nb2O5N2:0.07Eu | 615nm | 80 |
| 8 | Sr2.92Nb2O5N2:0.08Eu | 615nm | 72 |
The elemental analysis result of 2 embodiment 3 of table
Embodiment 9 ~ 17
Strontium carbonate or strontium nitrate, barium carbonate or barium oxalate, calcium carbonate or calcium oxalate, magnesium carbonate or oxalic acid are weighed in molar ratio
Magnesium, Nb2O5And Eu2O3, after being sufficiently mixed, after being packed into crucible, it is put into the reducing atmosphere electric furnace for being connected with 75% hydrogen and 25% nitrogen
In, 10 ~ 12 hours are kept the temperature in 1050 DEG C, through crushing after cooling, ball milling obtains fluorescent material after screening.Pass through Ba2+Ion
Doping obtains transmitting main peak in 600 ~ 615nm and changes adjustable nitrogen oxide fluorescent material, chemical composition, transmitting main peak and phase
It is as shown in table 3 to brightness.
Chemical composition, transmitting main peak and the relative luminance of 3 embodiment 3,9 ~ 17 of table
| Embodiment | Chemical composition | Emit main peak | Relative luminance (%) |
| 3 | Sr2.97Nb2O5N2:0.03Eu | 615nm | 83 |
| 9 | Sr2.95Ba0.02Nb2O5N2:0.03Eu | 620nm | 90 |
| 10 | Sr2.93Ba0.04Nb2O5N2:0.03Eu | 625nm | 100 |
| 11 | Sr2.91Ba0.06Nb2O5N2:0.03Eu | 613nm | 91 |
| 12 | Sr2.96Ca0.01Nb2O5N2:0.03Eu | 618nm | 80 |
| 13 | Sr2.95Ca0.02Nb2O5N2:0.03Eu | 622nm | 78 |
| 14 | Sr2.94Ca0.03Nb2O5N2:0.03Eu | 628nm | 75 |
| 15 | Sr2.96Mg0.01Nb2O5N2:0.03Eu | 615nm | 85 |
| 16 | Sr2.95Mg0.02Nb2O5N2:0.03Eu | 615nm | 89 |
| 17 | Sr2.94Mg0.03Nb2O5N2:0.03Eu | 615nm | 81 |
Embodiment 18 ~ 30
Strontium carbonate or strontium nitrate, Y are weighed in molar ratio2O3、Sc2O3、CeO2、Dy2O3、Nb2O5And Eu2O3, it is sufficiently mixed
Afterwards, it after being packed into crucible, is put into the reducing atmosphere electric furnace for being connected with 75% hydrogen and 25% nitrogen, keeps the temperature 10 ~ 12 hours in 1050 DEG C,
Through crushing after cooling, ball milling obtains fluorescent material after screening.Pass through Y3+The doping of ion improves nitrogen oxide fluorescent material
Luminous intensity, the chemical composition of fluorescent material and transmitting main peak are as shown in table 4.
The chemical composition and relative luminance of 4 embodiment 3,18 ~ 30 of table
| Embodiment | Chemical composition | Emit main peak | Relative luminance (%) |
| 3 | Sr2.97Nb2O5N2:0.03Eu | 615nm | 80 |
| 18 | Sr2.96Nb2O5N2:0.03Eu,0.01Y | 615nm | 98 |
| 19 | Sr2.955Nb2O5N2:0.03Eu,0.015Y | 615nm | 100 |
| 20 | Sr2.95Nb2O5N2:0.03Eu,0.02Y | 615nm | 93 |
| 21 | Sr2.945Nb2O5N2:0.03Eu,0.025Y | 615nm | 90 |
| 22 | Sr2.96Nb2O5N2:0.03Eu,0.01Sc | 615nm | 83 |
| 23 | Sr2.95Nb2O5N2:0.03Eu,0.02Sc | 615nm | 87 |
| 24 | Sr2.94Nb2O5N2:0.03Eu,0.03Sc | 615nm | 85 |
| 25 | Sr2.96Nb2O5N2:0.03Eu,0.01Ce | 615nm | 86 |
| 26 | Sr2.95Nb2O5N2:0.03Eu,0.02Ce | 615nm | 93 |
| 27 | Sr2.94Nb2O5N2:0.03Eu,0.03Ce | 615nm | 90 |
| 28 | Sr2.96Nb2O5N2:0.03Eu,0.01Dy | 615nm | 84 |
| 29 | Sr2.95Nb2O5N2:0.03Eu,0.02Dy | 615nm | 89 |
| 30 | Sr2.94Nb2O5N2:0.03Eu,0.03Dy | 615nm | 83 |
Claims (2)
1. a kind of nitrogen oxides red fluorescence material, it is characterized in that chemical composition indicates are as follows: M2.90~2.99Nb2O5N2:xEu,yLn；
Wherein M is Sr, Ba, the combination of one of Ca or Mg or multiple element, one in Ln Ce, Nd, Sm, Dy, Ho, Er, Y or Sc
The combination of kind or several elements, x, y are mole coefficient, wherein 0.001≤x≤0.1,0≤y≤0.05.
2. nitrogen oxides red fluorescence material according to claim 1, it is characterized in that chemical composition indicates are as follows:
Sr2.97Nb2O5N2:0.03Eu。
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004300247A (en) * | 2003-03-31 | 2004-10-28 | Mitsubishi Chemicals Corp | Phosphor, light emitter using the same and lighting apparatus |
| JP2014003065A (en) * | 2012-06-15 | 2014-01-09 | Konica Minolta Inc | Led device and method for manufacturing the same |
| CN105199726A (en) * | 2015-10-20 | 2015-12-30 | 陕西科技大学 | NaSr2Nb5O15:xEu3<+> red phosphor powder for LED (Light Emitting Diode) and preparation method thereof |
-
2016
- 2016-11-09 CN CN201610984603.9A patent/CN106566544B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004300247A (en) * | 2003-03-31 | 2004-10-28 | Mitsubishi Chemicals Corp | Phosphor, light emitter using the same and lighting apparatus |
| JP2014003065A (en) * | 2012-06-15 | 2014-01-09 | Konica Minolta Inc | Led device and method for manufacturing the same |
| CN105199726A (en) * | 2015-10-20 | 2015-12-30 | 陕西科技大学 | NaSr2Nb5O15:xEu3<+> red phosphor powder for LED (Light Emitting Diode) and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| Gerard Tobias等.Anion Ordering and Defect Structure in Ruddlesden−Popper Strontium Niobium Oxynitrides.《Inorg. Chem.》.2004, |
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Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee after: Institute of rare metals, Guangdong Academy of Sciences Address before: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee before: GUANGDONG INSTITUTE OF RARE METALS |
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Effective date of registration: 20220920 Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee after: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Address before: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee before: Institute of rare metals, Guangdong Academy of Sciences |
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Application publication date: 20170419 Assignee: DONGGUAN QINGLIU NEW MATERIAL Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980037903 Denomination of invention: A Red Fluorescent Material of Nitrogen Oxides Granted publication date: 20190419 License type: Common License Record date: 20230713 |
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Application publication date: 20170419 Assignee: DONGGUAN HUANNIAO NEW MATERIAL Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980040911 Denomination of invention: A Red Fluorescent Material of Nitrogen Oxides Granted publication date: 20190419 License type: Common License Record date: 20230831 |
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Application publication date: 20170419 Assignee: Shandong Tongguan New Material Technology Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980040989 Denomination of invention: A Red Fluorescent Material of Nitrogen Oxides Granted publication date: 20190419 License type: Common License Record date: 20230904 |
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Application publication date: 20170419 Assignee: FOSHAN ZHENGRONG TECHNOLOGY Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980041273 Denomination of invention: A Red Fluorescent Material of Nitrogen Oxides Granted publication date: 20190419 License type: Common License Record date: 20230906 |
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Application publication date: 20170419 Assignee: Chongqing Zhixin Yicheng Biotechnology Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980048292 Denomination of invention: A nitrogen oxide red fluorescent material Granted publication date: 20190419 License type: Common License Record date: 20231124 |