CN102321478A - Nitrogen oxide fluorescent powder and preparation method as well as application thereof - Google Patents

Nitrogen oxide fluorescent powder and preparation method as well as application thereof Download PDF

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CN102321478A
CN102321478A CN201110157772A CN201110157772A CN102321478A CN 102321478 A CN102321478 A CN 102321478A CN 201110157772 A CN201110157772 A CN 201110157772A CN 201110157772 A CN201110157772 A CN 201110157772A CN 102321478 A CN102321478 A CN 102321478A
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fluorescent powder
nitric oxide
oxide fluorescent
preparation
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张家骅
刘永福
张霞
郝振东
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Changchun Institute of Optics Fine Mechanics and Physics of CAS
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Changchun Institute of Optics Fine Mechanics and Physics of CAS
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Abstract

The invention discloses nitrogen oxide fluorescent powder and a preparation method as well as application thereof, relates to fluorescent materials in the technical field of light emission, and solves the problems of low color rendering index and high synthesis temperature in the prior art. The material has the chemical formula of M3(Ln2-xCex)D3O12-6nN4n, wherein M represents at least one of Mg, Ca, Sr, Ba or Zn; Ln represents at least one of Al, Ga, In, Sc, Y, La, Gd or Lu; D represents at least one of Si, Ge, Sn, Ti, Zr or Hf; x is greater than or equal to 0.0001 and is less than or equal to 0.4; and n is greater than or equal to 0.01 and is less than or equal to 1. The material is ground, uniformly mixed and then placed in a crucible, and is placed in a high temperature furnace under the reducing atmosphere condition to obtain the fluorescent powder. A white LED (Light Emitting Diode) prepared from the fluorescent powder has high color rendering index and low color temperature; and the color quality of the white LED is excellently improved.

Description

A kind of nitric oxide fluorescent powder
Technical field
The present invention relates to a kind of fluorescent material in the luminescence technology field, relate in particular to a kind of nitric oxide fluorescent powder.
Background technology
Plurality of advantages such as that white light LEDs (Light Emitting Diode) has is nontoxic, energy-efficient, the life-span is long, all solid state, WV is low, shock resistance and security are good can be widely used in illumination and demonstration field.It replaces traditional incandescent light and luminescent lamp and has profound significance as lighting source of new generation.
Realize that the general and simple method of white light LEDs is that on blue-light LED chip, apply can be by the blue-light excited and fluorescent material emission gold-tinted.At present, the yellow fluorescent powder that is widely used on the commercialization white light LEDs mainly is the YAG yttrium aluminum garnet, and its chemical formula is Y 3Al 5O 12: Ce 3+, (referring to USP 5,998,925 with European patent 862,794).The white light LEDs that this fluorescent material is made has very high luminous efficiency, yet, owing to lack the ruddiness composition in its emmission spectrum, thus cause the colour rendering index of synthetic white light LEDs on the low side, colour temperature is higher.This has just limited the application of white light LEDs at low colour temperature, warm white lighting field.In order to obtain high-color rendering, hang down the warm white LED of colour temperature, people propose to make white light LEDs through green and red fluorescence powder method of mixing.This fluorescent material method of mixing exists between the different fluorescent material and absorbs, thereby causes whole lighting efficiency lower.The emmission spectrum of the white light LEDs of making simultaneously changes along with the variation of drive current.
In recent years, nitride and nitric oxide fluorescent powder are owing to its superior thermally-stabilised and chemically stable characteristic, and excite and the emmission spectrum and high luminous efficiency of broad cause people's extensive concern.The yellow fluorescent powder Ca-α-SiAlON:Eu of Japanology personnel invention 2+With green emitting phosphor β-SiAlON:Eu 2+Be applied on the white light LEDs.Yet the synthesis condition of these nitric oxide fluorescent powders is very harsh, usually need be synthetic under greater than 1700 ℃ high temperature, highly compressed condition, and it is synthetic perhaps to be employed in the air not easily-storied metal nitride, and preparation is difficulty.The American Studies personnel have reported a kind ofly have the oxynitride phosphor that improves the white light LEDs color quality (U.S. Pat 7,439,668 with international monopoly WO2006/094139), yet the synthesis temperature of this oxynitride phosphor (1600 ℃) is also than higher.
Summary of the invention
The objective of the invention is in order to solve in the prior art colour rendering index on the low side, synthesis temperature problem of higher, and a kind of nitric oxide fluorescent powder that provides.
In order to achieve the above object, the technical scheme of taking of the present invention is following:
A kind of nitric oxide fluorescent powder is characterized in that, the materials chemistry formula is: M 3(Ln 2-xCe x) D 3O 12-6nN 4n, wherein M represents at least a among Mg, Ca, Sr, Ba or the Zn; Ln represents at least a among Al, Ga, In, Sc, Y, La, Gd or the Lu; D represents at least a among Si, Ge, Sn, Ti, Zr or the Hf; The span of said x is 0.0001≤x≤0.4, and the span of n is 0.01≤n≤1.
A kind of preparation method of nitric oxide fluorescent powder, this method is realized by following steps:
(1) with the chemical formula is M 3(Ln 2-xCe x) D 3O 12-6nN 4nThe oxide compound of middle element, fluorochemical, muriate, nitride or corresponding salt are raw material, take by weighing in molar ratio, and fully ground and mixed is even, obtains blend sample; Said M represents at least a among Mg, Ca, Sr, Ba or the Zn; Ln represents at least a among Al, Ga, In, Sc, Y, La, Gd or the Lu; D represents at least a among Si, Ge, Sn, Ti, Zr or the Hf; The span of said x is 0.0001≤x≤0.4, and the span of n is 0.01≤n≤1;
(2) blend sample that step (1) is obtained is inserted in the crucible, under the reducing atmosphere condition, puts into the high temperature kiln roasting, obtains sintered compact; The maturing temperature of said blend sample is 1200-1400 ℃, and roasting time is 4 hours;
(3) after grinding, the sintered compact that step (2) is obtained promptly obtains described fluorescent material.
Described reducing atmosphere is carbon monoxide or hydrogen.
Described High Temperature Furnaces Heating Apparatus is retort furnace or tube furnace.
Above-mentioned a kind of nitric oxide fluorescent powder is in the application of preparation in the white light LEDs, is to be that 0.2: 1 mixed is even with described nitric oxide fluorescent powder and epoxy resin according to mass ratio, is coated on the blue light InGaN chip package curing and make white light LEDs.
Beneficial effect of the present invention: a kind of nitric oxide fluorescent powder provided by the invention can be used as single-component phosphor and makes white light LEDs; And the white light LEDs that obtains has higher colour rendering index and lower colour temperature; Colour rendering index Ra＞80 have been improved the color quality of white light LEDs well; This nitric oxide fluorescent powder is synthetic through traditional high-temperature solid phase reaction method; Its preparation method is simple; Temperature of reaction is lower than general oxynitride or nitride, and does not need the highly compressed condition, and the synthetic nitric oxide fluorescent powder can effectively be excited by UV-light or blue green light.
Description of drawings
Fig. 1 is the emmission spectrum (λ of nitric oxide fluorescent powder among the embodiment of the invention 1-4 Ex=450nm) synoptic diagram;
Fig. 2 is the excitation spectrum (λ of nitric oxide fluorescent powder among the embodiment of the invention 1-4 Em=600nm) synoptic diagram;
Fig. 3 is that nitric oxide fluorescent powder and blue chip combine the white light LEDs spectrogram made in the embodiment of the invention 4.
Embodiment
In conjunction with accompanying drawing and specific embodiment the present invention is done further explain:
Embodiment 1
A kind of nitric oxide fluorescent powder, the materials chemistry formula is: M 3(Ln 2-xCe x) D 3O 12-6nN 4n, wherein work as M=Ca in the said chemical formula, Sr and Ba; Ln=Sc and Y; D=Si; X=0.1, n=0.01, the preparation molecular formula is (Ca 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 11.94N 0.04Fluorescent material.
Take by weighing 2.8molCaCO in molar ratio 3, 0.1molSrCO 3, 0.1molBaCO 3, 0.9molSc 2O 3, 0.05molY 2O 3, 0.1molCeO 2, 2.97molSiO 2, 0.01molSi 3N 4After mixed grinding is even, place the high-purity corundum crucible, under the hydrogen reducing atmosphere condition, put into the high-temperature tubular kiln roasting,, promptly get (Ca 1400 ℃ of roastings 4 hours 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 11.94N 0.04Fluorescent material.
Embodiment 2
A kind of nitric oxide fluorescent powder, the materials chemistry formula is: M 3(Ln 2-xCe x) D 3O 12-6nN 4n, wherein work as M=Ca in the said chemical formula, Sr and Ba; Ln=Sc and Y; D=Si; X=0.1, n=0.1, the preparation molecular formula is (Ca 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 11.4N 0.4Fluorescent material.
Take by weighing 2.8molCaCO in molar ratio 3, 0.1molSrCO 3, 0.1molBaCO 3, 0.9molSc 2O 3, 0.05molY 2O 3, 0.1molCeO 2, 2.7molSiO 2, 0.1molSi 3N 4After mixed grinding is even, place plumbago crucible, under the hydrogen reducing atmosphere condition, put into the high-temperature tubular kiln roasting,, promptly get (Ca 1400 ℃ of roastings 4 hours 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 11.4N 0.4Fluorescent material.
Embodiment 3
A kind of nitric oxide fluorescent powder, the materials chemistry formula is: M 3(Ln 2-xCe x) D 3O 12-6nN 4n, wherein work as M=Ca in the said chemical formula, Sr and Ba; Ln=Sc and Y; D=Si; X=0.1, n=0.5, the preparation molecular formula is (Ca 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 9N 2Fluorescent material.
Take by weighing 2.8molCaCO in molar ratio 3, 0.1molSrCO 3, 0.1molBaCO 3, 0.9molSc 2O 3, 0.05molY 2O 3, 0.1molCeO 2, 1.5molSiO 2, 0.5molSi 3N 4After mixed grinding is even, place platinum crucible, under the hydrogen reducing atmosphere condition, put into the high-temperature tubular kiln roasting,, promptly get (Ca 1300 ℃ of roastings 4 hours 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 9N 2Fluorescent material.
Embodiment 4
A kind of nitric oxide fluorescent powder, the materials chemistry formula is: M 3(Ln 2-xCe x) D 3O 12-6nN 4n, wherein work as M=Ca in the said chemical formula, Sr and Ba; Ln=Sc and Y; D=Si; X=0.1, n=1, the preparation molecular formula is (Ca 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 6N 4Fluorescent material.
Take by weighing 2.8molCaCO in molar ratio 3, 0.1molSrCO 3, 0.1molBaCO 3, 0.9molSc 2O 3, 0.05molY 2O 3, 0.1molCeO 2, 1molSi 3N 4After mixed grinding is even, place the high-purity corundum crucible, under the hydrogen reducing atmosphere condition, put into the high-temperature tubular kiln roasting,, promptly get (Ca 1200 ℃ of roastings 4 hours 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 6N 4Fluorescent material.
Fig. 1 is the emmission spectrum (λ of nitric oxide fluorescent powder among the embodiment of the invention 1-4 Ex=450nm) synoptic diagram, 1 among the figure represents (Ca 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 11.94N 0.04,
2 representative (Ca 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 11.4N 0.4,
3 representative (Ca 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 9N 2,
4 representative (Ca 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 6N 4, as can be seen from the figure, emmission spectrum changes along with the increase of nitrogen element (N) in the fluorescent material.After emmission spectrum normalization method, along with the increase of N element in the fluorescent material, the green emission in the spectrum remains unchanged and orange red light emission increases gradually.
Fig. 2 is the excitation spectrum (λ of nitric oxide fluorescent powder among the embodiment of the invention 1-4 Em=600nm) synoptic diagram, 1 among the figure represents (Ca 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 11.94N 0.04,
2 representative (Ca 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 11.4N 0.4,
3 representative (Ca 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 9N 2,
4 representative (Ca 2.8Sr 0.1Ba 0.1) (Sc 1.8Y 0.1Ce 0.1) Si 3O 6N 4, as can be seen from the figure, the fluorescent material that the present invention proposes can effectively be excited by UV-light or blue green light, and along with the increase of N element in the fluorescent material, the excitation band of green glow increases gradually, thereby excitation spectrum is widened gradually.
Embodiment 5
A kind of nitric oxide fluorescent powder, the materials chemistry formula is: M 3(Ln 2-xCe x) D 3O 12-6nN 4n, wherein work as M=Ca and Zn in the said chemical formula; Ln=Sc; D=Si and Ge; X=0.0001, during n=0.4, the preparation molecular formula is (Ca 2.8Zn 0.2) (Sc 1.9999Ce 0.0001) (Si 2.8Ge 0.2) O 9.6N 1.6Fluorescent material.
Take by weighing 2.8molCaCO in molar ratio 3, 0.2molZnO, 0.99995molSc 2O 3, 0.0001molCeO 2, 0.2molGeO 2, 1.6molSiO 2, 0.4molSi 3N 4After mixed grinding is even, place the high-purity corundum crucible, under the hydrogen reducing atmosphere condition, put into the high-temperature tubular kiln roasting,, promptly get (Ca 1300 ℃ of roastings 4 hours 2.8Zn 0.2) (Sc 1.9999Ce 0.0001) (Si 2.8Ge 0.2) O 9.6N 1.6Fluorescent material.
Embodiment 6
A kind of nitric oxide fluorescent powder, the materials chemistry formula is: M 3(Ln 2-xCe x) D 3O 12-6nN 4n, wherein work as M=Ca and Zn in the said chemical formula; Ln=Sc; D=Si and Ge; X=0.01, during n=0.4, the preparation molecular formula is (Ca 2.8Zn 0.2) (Sc 1.99Ce 0.01) (Si 2.8Ge 0.2) O 9.6N 1.6Fluorescent material.
Take by weighing 2.8molCaCO in molar ratio 3, 0.2molZnO, 0.995molSc 2O 3, 0.01molCeO 2, 0.2molGeO 2, 1.6molSiO 2, 0.4molSi 3N 4After mixed grinding is even, place the high-purity corundum crucible, under the hydrogen reducing atmosphere condition, put into the high-temperature tubular kiln roasting,, promptly get (Ca 1300 ℃ of roastings 4 hours 2.8Zn 0.2) (Sc 1.99Ce 0.01) (Si 2.8Ge 0.2) O 9.6N 1.6Fluorescent material.
Embodiment 7
A kind of nitric oxide fluorescent powder, the materials chemistry formula is: M 3(Ln 2-xCe x) D 3O 12-6nN 4n, wherein work as M=Ca and Zn in the said chemical formula; Ln=Sc; D=Si and Ge; X=0.4, during n=0.4, the preparation molecular formula is (Ca 2.8Zn 0.2) (Sc 1.6Ce 0.4) (Si 2.8Ge 0.2) O 9.6N 1.6Fluorescent material.
Take by weighing 2.8molCaCO in molar ratio 3, 0.2molZnO, 0.8molSc 2O 3, 0.4molCeO 2, 0.2molGeO 2, 1.6molSiO 2, 0.4molSi 3N 4After mixed grinding is even, place the high-purity corundum crucible, under the hydrogen reducing atmosphere condition, put into the high-temperature tubular kiln roasting,, promptly get (Ca 1300 ℃ of roastings 4 hours 2.8Zn 0.2) (Sc 1.6Ce 0.4) (Si 2.8Ge 0.2) O 9.6N 1.6Fluorescent material.
Embodiment 8
A kind of nitric oxide fluorescent powder, the materials chemistry formula is: M 3(Ln 2-xCe x) D 3O 12-6nN 4n, wherein work as M=Ca and Zn in the said chemical formula; Ln=Sc, Y and Lu; D=Si and Ge; X=0.1, during n=0.4, the preparation molecular formula is (Ca 2.8Zn 0.2) (Sc 1.7Y 0.1Lu 0.1Ce 0.1) (Si 2.8Ge 0.2) O 9.6N 1.6Fluorescent material.
Take by weighing 2.8molCaCO in molar ratio 3, 0.2molZnO, 0.85molSc 2O 3, 0.05molY 2O 3, 0.05molLu 2O 3, 0.1molCeO 2, 0.2molGeO 2, 1.6molSiO 2, 0.4molSi 3N 4After mixed grinding is even, place the high-purity corundum crucible, under the hydrogen reducing atmosphere condition, put into the high-temperature tubular kiln roasting,, promptly get (Ca 1300 ℃ of roastings 4 hours 2.8Zn 0.2) (Sc 1.7Y 0.1Lu 0.1Ce 0.1) (Si 2.8Ge 0.2) O 9.6N 1.6Fluorescent material.
Embodiment 9
A kind of nitric oxide fluorescent powder, the materials chemistry formula is: M 3(Ln 2-xCe x) D 3O 12-6nN 4n, wherein work as M=Ca and Zn in the said chemical formula; Ln=Sc, Y and La; D=Si and Ge; X=0.1, during n=0.4, the preparation molecular formula is (Ca 2.8Zn 0.2) (Sc 1.7Y 0.1La 0.1Ce 0.1) (Si 2.8Ge 0.2) O 9.6N 1.6Fluorescent material.
Take by weighing 2.8molCaCO in molar ratio 3, 0.2molZnO, 0.85molSc 2O 3, 0.05molY 2O 3, 0.05molLa 2O 3, 0.1molCeO 2, 0.2molGeO 2, 1.6molSiO 2, 0.4molSi 3N 4After mixed grinding is even, place the high-purity corundum crucible, under the hydrogen reducing atmosphere condition, put into the high-temperature tubular kiln roasting,, promptly get (Ca 1300 ℃ of roastings 4 hours 2.8Zn 0.2) (Sc 1.7Y 0.1La 0.1Ce 0.1) (Si 2.8Ge 0.2) O 9.6N 1.6Fluorescent material.
Embodiment 10
A kind of nitric oxide fluorescent powder, the materials chemistry formula is: M 3(Ln 2-xCe x) D 3O 12-6nN 4n, wherein work as M=Ca and Zn in the said chemical formula; Ln=Sc, Y and La; D=Si, Ge and Ti; X=0.1, during n=0.4, the preparation molecular formula is (Ca 2.8Zn 0.2) (Sc 1.7Y 0.1La 0.1Ce 0.1) (Si 2.8Ge 0.1Ti 0.1) O 9.6N 1.6Fluorescent material.
Take by weighing 2.8molCaCO in molar ratio 3, 0.2molZnO, 0.85molSc 2O 3, 0.05molY 2O 3, 0.05molLa 2O 3, 0.1molCeO 2, 0.1molGeO 2, 0.1molTiO 2, 1.6molSiO 2, 0.4molSi 3N 4After mixed grinding is even, place the high-purity corundum crucible, under the hydrogen reducing atmosphere condition, put into the high-temperature tubular kiln roasting,, promptly get (Ca 1300 ℃ of roastings 4 hours 2.8Zn 0.2) (Sc 1.7Y 0.1La 0.1Ce 0.1) (Si 2.8Ge 0.1Ti 0.1) O 9.6N 1.6Fluorescent material.
Can find out that by above embodiment a kind of nitric oxide fluorescent powder that the present invention proposes has improved the color quality of white light LEDs well, expand white light LEDs in low colour temperature, warm white illumination and demonstration Application for Field.Nitric oxide fluorescent powder that Fig. 3 provides for the embodiment of the invention 4 and blue chip combine the white light LEDs spectrogram of making, its colour rendering index Ra=87, and colour temperature CCT=4500K, chromaticity coordinates (x, y)=(0.3525,0.3502).
The combination of M, Ln and D is not limited to above embodiment in a kind of nitric oxide fluorescent powder that the present invention proposes.The combination of M, Ln and D is one and illustrates in the fluorescent material that above embodiment provides.

Claims (5)

1. a nitric oxide fluorescent powder is characterized in that, the materials chemistry formula is: M 3(Ln 2-xCe x) D 3O 12-6nN 4n, wherein M represents at least a among Mg, Ca, Sr, Ba or the Zn; Ln represents at least a among Al, Ga, In, Sc, Y, La, Gd or the Lu; D represents at least a among Si, Ge, Sn, Ti, Zr or the Hf; The span of said x is 0.0001≤x≤0.4, and the span of n is 0.01≤n≤1.
2. based on the preparation method of the described a kind of nitric oxide fluorescent powder of claim 1, it is characterized in that this method is realized by following steps:
(1) with the chemical formula is M 3(Ln 2-xCe x) D 3O 12-6nN 4nThe oxide compound of middle element, fluorochemical, muriate, nitride or corresponding salt are raw material, take by weighing in molar ratio, and fully ground and mixed is even, obtains blend sample; Said M represents at least a among Mg, Ca, Sr, Ba or the Zn; Ln represents at least a among Al, Ga, In, Sc, Y, La, Gd or the Lu; D represents at least a among Si, Ge, Sn, Ti, Zr or the Hf; The span of said x is 0.0001≤x≤0.4, and the span of n is 0.01≤n≤1;
(2) blend sample that step (1) is obtained is inserted in the crucible, under the reducing atmosphere condition, puts into the high temperature kiln roasting, obtains sintered compact; The maturing temperature of said blend sample is 1200-1400 ℃, and roasting time is 4 hours;
(3) after grinding, the sintered compact that step (2) is obtained promptly obtains described fluorescent material.
3. the preparation method of a kind of nitric oxide fluorescent powder according to claim 2 is characterized in that, the described reducing atmosphere of step (2) is carbon monoxide or hydrogen.
4. the preparation method of a kind of nitric oxide fluorescent powder according to claim 2 is characterized in that, the described High Temperature Furnaces Heating Apparatus of step (2) is retort furnace or tube furnace.
5. the application of the described a kind of nitric oxide fluorescent powder of claim 1 in the preparation white light LEDs; It is characterized in that; Is that 0.2: 1 mixed is even with described nitric oxide fluorescent powder and epoxy resin according to mass ratio, is coated on the blue light InGaN chip package curing and make white light LEDs.
CN201110157772A 2011-06-13 2011-06-13 Nitrogen oxide fluorescent powder and preparation method as well as application thereof Pending CN102321478A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103881706A (en) * 2012-12-21 2014-06-25 有研稀土新材料股份有限公司 Nitrogen oxide fluorescent powder, preparation method thereof and luminescent device containing the fluorescent powder
CN104232087A (en) * 2014-08-11 2014-12-24 北京大学工学院包头研究院 Fluorescent material and preparation method and application thereof
CN114621765A (en) * 2022-03-31 2022-06-14 陕西师范大学 Ce3+Nitrogen oxide doped single-matrix white fluorescent powder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101781560A (en) * 2010-03-23 2010-07-21 中国计量学院 Fluorescent powder using silicon-aluminum base nitrogen oxides as base materials and preparation method thereof
CN101864309A (en) * 2010-07-16 2010-10-20 中国科学院长春光学精密机械与物理研究所 Nitrix oxide fluorescent powder based on excition of blue light and preparation method
CN101885965A (en) * 2010-06-28 2010-11-17 彩虹集团公司 Rare earth-doped nitrogen oxide fluorescent powder material and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101781560A (en) * 2010-03-23 2010-07-21 中国计量学院 Fluorescent powder using silicon-aluminum base nitrogen oxides as base materials and preparation method thereof
CN101885965A (en) * 2010-06-28 2010-11-17 彩虹集团公司 Rare earth-doped nitrogen oxide fluorescent powder material and preparation method thereof
CN101864309A (en) * 2010-07-16 2010-10-20 中国科学院长春光学精密机械与物理研究所 Nitrix oxide fluorescent powder based on excition of blue light and preparation method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘一兵等: "功率型LED封装技术", 《液晶与显示》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103881706A (en) * 2012-12-21 2014-06-25 有研稀土新材料股份有限公司 Nitrogen oxide fluorescent powder, preparation method thereof and luminescent device containing the fluorescent powder
CN103881706B (en) * 2012-12-21 2016-01-20 有研稀土新材料股份有限公司 A kind of nitric oxide fluorescent powder, its preparation method and the light-emitting device containing this fluorescent material
CN104232087A (en) * 2014-08-11 2014-12-24 北京大学工学院包头研究院 Fluorescent material and preparation method and application thereof
CN114621765A (en) * 2022-03-31 2022-06-14 陕西师范大学 Ce3+Nitrogen oxide doped single-matrix white fluorescent powder
CN114621765B (en) * 2022-03-31 2023-11-14 陕西师范大学 Ce (cerium) 3+ Nitrogen oxide doped single-matrix white light fluorescent powder

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Application publication date: 20120118