CN102504814B - Direct white light fluorescent material excited by ultraviolet light and preparation method and application thereof - Google Patents
Direct white light fluorescent material excited by ultraviolet light and preparation method and application thereof Download PDFInfo
- Publication number
- CN102504814B CN102504814B CN2011103212200A CN201110321220A CN102504814B CN 102504814 B CN102504814 B CN 102504814B CN 2011103212200 A CN2011103212200 A CN 2011103212200A CN 201110321220 A CN201110321220 A CN 201110321220A CN 102504814 B CN102504814 B CN 102504814B
- Authority
- CN
- China
- Prior art keywords
- fluorescent powder
- yellow fluorescent
- light
- white light
- yellow
- 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.)
- Active
Links
Images
Classifications
-
- 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
Abstract
The invention discloses a direct white light fluorescent material excited by ultraviolet light and a preparation method and an application thereof. The material adopts a composite material comprising yellow fluorescent powder and amorphous glass phase; and the amorphous glass phase is covered on the surfaces of yellow fluorescent powder particles and is formed by performing heat treatment of the nanometer oxide and the yellow fluorescent powder. The preparation method comprises the following steps: the yellow fluorescent powder and the nanometer oxide are weighed in proportion, uniformly mixed and then put into a boron nitride pot; and the yellow fluorescent powder and the nanometer oxide are conducted to heat treatment in a nitrogen atmosphere, cooled and ground. As the fluorescent material adopts single fluorescent material which can emit blue light and yellow light at the same time, the fluorescent material can be applied to ultraviolet base white light LED (light-emitted diode) and mercury discharge ultraviolet light excited white light emitting devices. In addition, the method is not only simple in the preparation process and is suitable for large-scale production, but also can obtain direct white light for emitting, with different color temperatures, and has industrial application prospect and value.
Description
Technical field
The present invention relates to direct white fluorescence material of a kind of ultraviolet excitation and its preparation method and application, belongs to the photoelectric material technical field.
Background technology
Under global low-carbon (LC), energy-conservation overall background, the illumination of efficient reduce power consumption, show that white light parts has received the very big concern of various countries.Europe, Japan announce to adopt electricity-saving lamp or white light LEDs to replace the incandescent light of high energy consumption in succession.Incandescent light is a kind of heat radiation light source, and 95% energy is that the form with heat has lost.And electricity-saving lamp and white light LEDs are cold light sources, have characteristics, particularly white light LEDs efficient, reduce power consumption and also have the advantages such as long service life, pollution-free, volume is little.Electricity-saving lamp and white light LED part are all under a kind of irradiation of short-wavelength light, by fluor light, are converted to white light emission.For example electricity-saving lamp is the ultraviolet ray excited three primary colors fluorescent powder of with mercury vapor discharge, emitting, and white light LEDs modal be to excite yellow fluorescent powder with the InGaN blue chip.
Usually need to excite three kinds of fluorescent material of red, green, blue with the ultraviolet LED chip in order to obtain the high-color rendering low color temperature white light LED.Yet, adopt so the mixed light conversion of white light technology of many components fluor to come with some shortcomings, such as: the specific refractory power of each composition fluorescent grain of micron order is inconsistent, causes the propagation attenuation of photon energy between different crystalline lattice; The absorption of each composition fluor, excitation and emission spectra, light decay and efficiency are inconsistent, cause the colour stability of device poor; Directly there is the re-absorbed problem of light in each component fluorescent powder particle; And complicated blending processes of powders problem.For above-mentioned background, adopt direct white light (single-phase panchromatic or single-phase white) fluorescent material can effectively overcome the problem that mixed whitewash light technology exists, be a kind of innovation to the mixed whitewash light technology of tradition.Therefore the research that is used for the direct white fluorescence material of burst of ultraviolel of white light LEDs and electricity-saving lamp becomes a study hotspot of field of light emitting materials and has obtained research widely.
The reported direct white fluorescence material of single-phase that is suitable for ultraviolet excitation has a lot, and for example: it is Ca that a kind of its ingredient formula is provided in the Chinese invention patent of application number for CN200910087495
1-xPr
xMO
4The white emitting fluorescent powder of single component, under the exciting of single excitaton source, lighting system can be sent the white light of low colour temperature; A kind of preparation method of ultraviolet excitation single white phosphors is provided in the Chinese invention patent of application number for CN 200710170433, and the structural formula of fluorescent material is Sr
1-xEu
xZn
2-yMn (PO
4)
2It is Eu that a kind of expression formula is provided in the Chinese invention patent of application number for CN 200510016743
xySr
Y-xyMgSi
zO
2x+y+1White emitting fluorescent powder.Can find out from prior art, at present the color matching strategy of transmitting white and the research of material system are variation, indigo plant based on multiple luminescence center+direct white light emission system of yellow two waveband is wherein arranged; Based on Eu
2+-Mn
2+Red+green+blue (or indigo plant+Huang) of mixing altogether transmission ofenergy be white light emission system directly; Whole color fluorescent material based on electronic migration between the conjugate rare earth ion pair; Synthesize based on original position the direct white light emission that accompanying impurities is realized mutually; Based on direct white fluorescence material system that mixes valency Eu codoped etc.Industrial community and each large research institution have given great attention to the direct white fluorescence material of burst of ultraviolel, particularly with the direct white fluorescence material of ultraviolet chips incorporate, by industry, are thought to obtain the developing direction of high-color rendering, white light LED part that colour temperature is adjustable.
Summary of the invention
The technical problem to be solved in the present invention is to provide direct white fluorescence material of a kind of ultraviolet excitation and its preparation method and application.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of direct white fluorescence material of ultraviolet excitation, it is a kind of matrix material by yellow fluorescent powder and amorphous glass phase composite, described amorphous glass is coated on the particle surface of yellow fluorescent powder mutually, is to be formed through thermal treatment by nano-oxide and yellow fluorescent powder.
Further, the composition general formula of described yellow fluorescent powder is Ca
m/2Si
12-m-nAl
m+nO
nN
16-n: Eu
x, 0＜m wherein≤3,0＜n≤1.5,0.005≤x≤0.2.
Further, the composition general formula of described yellow fluorescent powder is Ca
1-xSi
9Al
3ON
15: Eu
x, 0.005≤x wherein≤0.2.
Further, described nano-oxide is nanometer SiO
2, nanometer A1
2O
3, nanometer B
2O
3In any one or a few mixture.
A kind of preparation method of direct white fluorescence material of described ultraviolet excitation, comprise the steps: to take in proportion yellow fluorescent powder and nano-oxide, evenly mixes and be placed in boron nitride crucible, heat-treats in nitrogen atmosphere, and is cooling, grinds.
The mass ratio of described yellow fluorescent powder and nano-oxide is recommended as 1: 0.01～and 1: 2, be preferably 1: 0.1～1: 1.
Described heat-treat condition is recommended as at 1200～1500 ℃ and processed 30～100 minutes.
Due to material of the present invention under the exciting of the UV-light of 250～420nm, can launch simultaneously the blue light of 380～460nm and the orange light of 470～600nm, and then be mixed into white light, for direct white fluorescence material, therefore, can be applicable in the white light emitting device of ultraviolet base white light LEDs and mercury discharge ultraviolet excitation.
Because fluorescent material provided by the invention is a kind of single fluorescent material that can launch simultaneously blue light and gold-tinted; therefore than adopting ultraviolet excitation red, green, blue or indigo plant, the mixed whitewash light prior art of yellow multiple fluorescent material on micro-meter scale; the light that can overcome between different fluorescent powder grains heavily absorbs and the complicated defect problems such as blending processes of powders; not only technique is simple; be fit to large-scale production; and can obtain the direct white light emission of different-colour, have prospects for commercial application and value.
Description of drawings
Fig. 1 is the yellow fluorescent powder (Ca of the different Eu doping contents of embodiment 1 preparation
1-xSi
9Al
3ON
15: Eu
x, x=0.02,0.04,0.06,0.08,0.10) and emmission spectrum under the ultraviolet excitation of 365nm;
Fig. 2 is the emmission spectrum of the direct white fluorescence material that forms of the difference of embodiment 2 preparation;
Fig. 3 is the XRD diffracting spectrum that embodiment 3 yellow fluorescent powder used reaches the direct white fluorescence material for preparing at the different heat treatment temperature;
Fig. 4 is the TEM of the direct white fluorescence material for preparing of embodiment 3, HRTEM photo and EDS ultimate analysis collection of illustrative plates.
Fig. 5 is excitation spectrum and the emmission spectrum that embodiment 3 yellow fluorescent powder used reaches the direct white fluorescence material for preparing at the different heat treatment temperature;
Fig. 6 is the chromaticity coordinates figure that embodiment 3 yellow fluorescent powder used reaches the direct white fluorescence material for preparing at the different heat treatment temperature;
Fig. 7 is the emmission spectrum that embodiment 4 yellow fluorescent powder used reaches the direct white fluorescence material for preparing under the time in different heat treatment;
Fig. 8 is the SEM photo of embodiment 5 yellow fluorescent powder used (a) and the direct white fluorescence material (b) for preparing.
Embodiment
The progress of substantive distinguishing features of the present invention and significance is described below in conjunction with specific embodiments and the drawings.Should be understood that these embodiment only are used to further illustrate the present invention, and can not be interpreted as limiting the scope of the invention.The experimental technique of unreceipted actual conditions in the following example,, usually according to normal condition, be for example the condition in workshop manual, or the condition of advising according to manufacturer.
Embodiment 1
According to Ca
1-xSi
9Al
3ON
15: Eu
xThe stoichiometric ratio of (x=0.02,0.04,0.06,0.08,0.10) accurately takes CaCO
3, Si
3N
4, AlN, Eu
2O
3, after evenly mixing in grinding as for agate, in the dislocation boron nitride crucible, the concrete weight of various raw materials is as shown in table 1; Then boron nitride crucible is placed in high frequency furnace,, in 1700 ℃ of sintering reactions 2 hours, obtains the yellow fluorescent powder of different Eu doping contents after naturally cooling under nitrogen protection atmosphere, be designated as: Ca-SiAlON:Eu
2+
Table 1
| Chemical formula | CaCO 3(g) | Si 3N 4(g) | AlN(g) | Eu 2O 3(g) |
| Ca 0.98Si 9Al 3ON 15:Eu 0.02 | 0.0901 | 1.7534 | 0.9225 | 0.0176 |
| Ca 0.96Si 9Al 3ON 15:Eu 0.04 | 0.1802 | 1.7534 | 0.9225 | 0.0352 |
| Ca 0.94Si 9Al 3ON 15:Eu 0.06 | 0.2703 | 1.7534 | 0.9225 | 0.0528 |
| Ca 0.92Si 9Al 3ON 15:Eu 0.08 | 0.3604 | 1.7534 | 0.9225 | 0.0704 |
| Ca 0.90Si 9Al 3ON 15:Eu 0.10 | 0.4504 | 1.7534 | 0.9225 | 0.0880 |
Fig. 1 is the yellow fluorescent powder (Ca of the prepared different Eu doping contents of the present embodiment
1-xSi
9Al
3ON
15: Eu
xX=0.02,0.04,0.06,0.08,0.10) and utilizing emitted light spectrogram under the ultraviolet excitation of 365nm, as seen from Figure 1: along with the increase of Eu doping content, red shift has occurred in the emission peak of sample, has moved to the orange light of 575nm of doped parameterx=0.10 from the 555nm yellow green light of doped parameterx=0.02.
By the present embodiment, the yellow fluorescent powder that can obtain different emission by the doping content that changes Eu can be described.
The Ca that embodiment 1 is obtained
0.98Si
9Al
3ON
15: Eu
0.02Yellow fluorescent powder and nano-oxide (SiO
2, Al
2O
3, B
2O
3) in one or more evenly mix by certain mass ratio, concrete mass ratio is as shown in table 2; Material after mixing is put into boron nitride crucible, processes 45 minutes in 1200 ℃ under nitrogen protection atmosphere in high frequency furnace.After naturally cooling, namely obtain the direct white fluorescence material of ultraviolet excitation.
Table 2
| Sequence number | Ca 0.98Si 9Al 3ON 15:Eu 0.02(g) | SiO 2(g) | Al 2O 3(g) | B 2O 3(g) |
| 1 | 0.200 | 0 | 0 | 0 |
| 2 | 0.200 | 0 | 0 | 0.065 |
| 3 | 0.200 | 0 | 0.075 | 0 |
| 4 | 0.200 | 0.075 | 0 | 0 |
| 5 | 0.200 | 0 | 0.075 | 0.065 |
| 6 | 0.200 | 0.075 | 0.065 | 0 |
| 7 | 0.200 | 0 | 0.040 | 0.052 |
| 8 | 0.200 | 0.075 | 0.075 | 0.065 |
Fig. 2 is the utilizing emitted light spectrogram of the direct white fluorescence material of the prepared difference composition of the present embodiment, as seen from Figure 2: do not add the sample of nano-oxide, show the luminosity of yellow fluorescent powder; But added the sample of nano-oxide, blue emission peak in various degree occurred in 400～480nm zone, with Ca
0.98Si
9Al
3ON
15: Eu
0.02Yellow emission mix, and then obtain direct white light.
Can be illustrated by the present embodiment, the fluorescent material that the present invention obtains can be launched blue light and gold-tinted simultaneously under the exciting of UV-light, and then mixes the acquisition white light, is direct white fluorescence material.
Embodiment 3
Take 0.60 gram Ca
0.98Si
9Al
3ON
15: Eu
0.02Yellow fluorescent powder and 0.225 gram nanometer SiO
2Be divided into 3 parts after evenly mixing and put into 3 boron nitride crucibles, processed 45 minutes respectively at 1200 ℃, 1300 ℃, 1400 ℃ under nitrogen protection atmosphere in high frequency furnace, after naturally cooling, obtain direct white fluorescence material.
Fig. 3 is the XRD diffracting spectrum that the present embodiment yellow fluorescent powder used reaches the direct white fluorescence material for preparing at the different heat treatment temperature; As seen from Figure 3: Ca
0.98Si
9Al
3ON
15: Eu
0.02Yellow fluorescent powder is typical Ca-SiAlON structure, and the direct white fluorescence material that obtains under subzero treatment still keeps the Ca-SiAlON structure,, along with the increase of thermal treatment temp, a small amount of Si occurred
2N
2The diffraction peak of O impurity phase.The intensity step-down of the diffraction peak of the sample after all are processed, the degree of crystallinity of interpret sample reduces, and has in other words occurred the amorphous glass phase in sample, has formed yellow Ca-SiAlON fluorescent material and amorphous glass phase composite materials.
Fig. 4 is the TEM of the direct white fluorescence material for preparing of the present embodiment, HRTEM photo and EDS ultimate analysis collection of illustrative plates.Can be found out by HRTEM, coat the obvious amorphous glass phase of one deck on the crystal grain surface, the electron diffraction analysis result shows that crystal grain is Ca-SiAlON crystalline phase (being the yellow fluorescent powder that we prepare).Find by the crystal grain of inside and the constituency EDS ultimate analysis of surface coated amorphous glass layer, their composition is all Ca-Si-Al-O-N, and this explanation amorphous glass is not by nanometer SiO mutually
2Simply be coated on the particle surface of fluorescent material, but form after the phase mutual diffusion with the fluorescent powder grain surface is incorporated into.In addition, the Si-O composition of amorphous glass phase will be higher than composition corresponding to the crystalline phase of inside, and this formation that amorphous glass phase just has been described is due to SiO
2Incorporate into and cause.
Fig. 5 is excitation spectrum and the utilizing emitted light spectrogram that the present embodiment yellow fluorescent powder used reaches the direct white fluorescence material for preparing at the different heat treatment temperature; As seen from Figure 5: along with the rising of thermal treatment temp, the direct white fluorescence material for preparing strengthens at the blue-light-emitting peak of 400～480nm, at the Yellow luminous peak of 480～600nm, reduces.When thermal treatment temp was 1400 ℃, the blue emission peak of the direct white fluorescence material for preparing accounted for leading; From excitation spectrum, the excitation spectrum of blue emission and the excitation spectrum of yellow emission have well overlapping in 250～400nm UV-light zone, illustrate that the material of preparation can be launched blue light and gold-tinted simultaneously with ultraviolet excitation, and then mix the acquisition white light.
Fig. 6 is the chromaticity coordinates figure that the present embodiment yellow fluorescent powder used reaches the direct white fluorescence material for preparing at the different heat treatment temperature; As seen from Figure 6: Ca
0.98Si
9Al
3ON
15: Eu
0.02The chromaticity coordinates of yellow fluorescent powder drops on the gold-tinted zone, and along with the rising of thermal treatment temp, directly the chromaticity coordinates of white fluorescence material moves toward white light field.When thermal treatment temp is 1300 ℃, the chromaticity coordinates of the direct white fluorescence material for preparing is (0.33,0.36), near equal-energy white luminous point (0.33,0.33), and when thermal treatment temp was 1400 ℃, the chromaticity coordinates of the direct white fluorescence material for preparing had moved to blue white light field, illustrated that the blue light ingredient of this moment is too much.
Can be illustrated by regulating thermal treatment temp by the present embodiment, can obtain to have the direct white fluorescence material of different Photochromic Properties.
Embodiment 4
Take 0.60 gram Ca
0.98Si
9Al
3ON
15: Eu
0.02Yellow fluorescent powder and 0.225 gram nanometer SiO
2, be divided into 3 parts after evenly mixing and put into 3 boron nitride crucibles, processed respectively 30 minutes, 45 minutes, 60 minutes in 1300 ℃ under nitrogen protection atmosphere in high frequency furnace, after naturally cooling, obtain direct white fluorescence material.
Fig. 7 is the utilizing emitted light spectrogram that the present embodiment yellow fluorescent powder used reaches the direct white fluorescence material for preparing under the time in different heat treatment, as seen from Figure 7: along with the increase of heat treatment time, the blue emission peak of the direct white fluorescence material for preparing strengthens, and the yellow emission peak weakens, and the color quality that can change white light emission by regulating heat treatment time is described.
Take 0.20 gram Ca
0.98Si
9Al
3ON
15: Eu
0.02Yellow fluorescent powder and 0.07 gram nanometer B
2O
3, evenly mix and be placed in boron nitride crucible,, in 1400 ℃ of processing 30 minutes, after naturally cooling, obtain direct white fluorescence material under the high frequency furnace nitrogen protection atmosphere.
Fig. 8 is the SEM photo of the present embodiment yellow fluorescent powder used (a) and the direct white fluorescence material (b) for preparing, as seen from Figure 8: Ca
0.98Si
9Al
3ON
15: Eu
0.02The yellow fluorescent powder grain diameter is 2～3 micron left and right, and about 5 microns left and right of the grain diameter of the direct white fluorescence material for preparing, this is that to be coated on mutually the yellow fluorescent powder particle surface caused due to the phase mutual diffusion between nano-oxide and yellow fluorescent powder surface and the amorphous glass of incorporating formation into.
Claims (4)
1. the direct white fluorescence material of a ultraviolet excitation, it is characterized in that: be a kind of matrix material by yellow fluorescent powder and amorphous glass phase composite, described amorphous glass is coated on the particle surface of yellow fluorescent powder mutually, is to be formed through thermal treatment by nano-oxide and yellow fluorescent powder; The composition general formula of described yellow fluorescent powder is Ca
1-xSi
9Al
3ON
15: Eu
x, 0.005≤x wherein≤0.2; Described nano-oxide is nanometer SiO
2, nanometer Al
2O
3, nanometer B
2O
3In any one or a few mixture; The mass ratio of yellow fluorescent powder and nano-oxide is 1:0.1～1:1; Described heat-treat condition is to process 30～100 minutes at 1200～1500 ℃.
2. the preparation method of the direct white fluorescence material of a ultraviolet excitation claimed in claim 1, is characterized in that, comprises the steps: to take in proportion yellow fluorescent powder and nano-oxide, evenly mix and be placed in boron nitride crucible, heat-treat in nitrogen atmosphere, cooling, grind.
3. the application of direct white fluorescence material in ultraviolet base white light LEDs of ultraviolet excitation claimed in claim 1.
4. the application of direct white fluorescence material in the white light emitting device of mercury discharge ultraviolet excitation of ultraviolet excitation claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103212200A CN102504814B (en) | 2011-10-20 | 2011-10-20 | Direct white light fluorescent material excited by ultraviolet light and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103212200A CN102504814B (en) | 2011-10-20 | 2011-10-20 | Direct white light fluorescent material excited by ultraviolet light and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102504814A CN102504814A (en) | 2012-06-20 |
| CN102504814B true CN102504814B (en) | 2013-11-20 |
Family
ID=46216951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103212200A Active CN102504814B (en) | 2011-10-20 | 2011-10-20 | Direct white light fluorescent material excited by ultraviolet light and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102504814B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106883842B (en) * | 2017-02-24 | 2019-12-06 | 河北利福光电技术有限公司 | High-reliability silicate fluorescent powder and surface modification method thereof |
| CN110118312A (en) * | 2018-02-07 | 2019-08-13 | 深圳光峰科技股份有限公司 | Wavelength converter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003081685A1 (en) * | 2002-03-26 | 2003-10-02 | Shin-Etsu Handotai Co.,Ltd. | Visible light emitting device |
| JP2008063446A (en) * | 2006-09-07 | 2008-03-21 | Sharp Corp | Coated phosphor, method for producing the same and light-emitting device comprising the coated phosphor |
| CN101868515A (en) * | 2007-11-22 | 2010-10-20 | 默克专利有限公司 | Surface-modified phosphors |
| CN101874094A (en) * | 2007-11-22 | 2010-10-27 | 默克专利有限公司 | Surface-modified conversion luminous substances |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070125984A1 (en) * | 2005-12-01 | 2007-06-07 | Sarnoff Corporation | Phosphors protected against moisture and LED lighting devices |
-
2011
- 2011-10-20 CN CN2011103212200A patent/CN102504814B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003081685A1 (en) * | 2002-03-26 | 2003-10-02 | Shin-Etsu Handotai Co.,Ltd. | Visible light emitting device |
| JP2008063446A (en) * | 2006-09-07 | 2008-03-21 | Sharp Corp | Coated phosphor, method for producing the same and light-emitting device comprising the coated phosphor |
| CN101868515A (en) * | 2007-11-22 | 2010-10-20 | 默克专利有限公司 | Surface-modified phosphors |
| CN101874094A (en) * | 2007-11-22 | 2010-10-27 | 默克专利有限公司 | Surface-modified conversion luminous substances |
Non-Patent Citations (4)
| Title |
|---|
| Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes;Hiroyo Segawa等;《Optical Materials》;20101030;第33卷;170-175 * |
| Fabrication of silica glass containing yellow oxynitride phosphor by the sol–gel process;Hiroyo Segawa1等;《Sci. Technol. Adv. Mater.》;20110527;第12卷;034407 * |
| Hiroyo Segawa1等.Fabrication of silica glass containing yellow oxynitride phosphor by the sol–gel process.《Sci. Technol. Adv. Mater.》.2011,第12卷1-5. |
| Hiroyo Segawa等.Fabrication of glasses of dispersed yellow oxynitride phosphor for white light-emitting diodes.《Optical Materials》.2010,第33卷170-175. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102504814A (en) | 2012-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101157854B (en) | Oxynitrides luminescent material, preparation method and uses thereof | |
| Guo et al. | White-light emission from a single-emitting-component Ca 9 Gd (PO 4) 7: Eu 2+, Mn2+ phosphor with tunable luminescent properties for near-UV light-emitting diodes | |
| Wu et al. | Bismuth activated high thermal stability blue-emitting phosphor Na 2 Y 2 B 2 O 7: Bi used for near-UV white-light LEDs | |
| CN102559177B (en) | Nitrogen oxides luminescent material and preparation method thereof and lighting source made of same | |
| CN103045256B (en) | LED (Light Emitting Diode) red fluorescence material and luminescent device containing same | |
| CN101671562B (en) | Nitrogen oxides luminescent material and preparation method and application thereof | |
| CN107043625B (en) | Near ultraviolet excited charge compensation type red light borophosphate luminescent material and preparation method thereof | |
| CN103881706B (en) | A kind of nitric oxide fluorescent powder, its preparation method and the light-emitting device containing this fluorescent material | |
| CN102391861B (en) | Nitrogen compound luminescent material, preparation method thereof and lighting source made therefrom | |
| CN112457848B (en) | Narrow-band blue light fluorescent powder and preparation method and application thereof | |
| CN105778913B (en) | A kind of list matrix three adulterates white light phosphor and preparation method and application | |
| JP5752257B2 (en) | Nitrogen compound luminescent material and white LED illumination light source manufactured thereby | |
| Zhang et al. | Optical characteristics of Ce, Eu: YAG single crystal grown by Czochralski method | |
| CN103525409A (en) | A high-luminous-efficiency high-stability nitride luminescent material and a manufacture method thereof | |
| Hu et al. | Preparation and characterization of Gd3 (ScAl) 2Al3O12: Ce3+ garnet phosphors towards high-color-rendering white-light illumination | |
| CN102093887B (en) | Silicon nitride orange red luminescent material for low color temperature white LED and preparation method thereof | |
| CN101899302B (en) | Near ultraviolet excited white light fluorescent powder and preparation method thereof | |
| CN102504814B (en) | Direct white light fluorescent material excited by ultraviolet light and preparation method and application thereof | |
| CN104059640B (en) | A kind of borate fluorescent powder substrate and the preparation method of fluorescent material | |
| CN102492422A (en) | Green emitting phosphor for white-light LEDs and preparation method thereof | |
| CN104910916B (en) | A kind of glow color adjustable New Phosphorus lime stone structure light-emitting material and application thereof | |
| CN102994075A (en) | Silicon-based nitrogen oxide green phosphor | |
| CN103865531A (en) | Fluorescent material of orange-yellow nitride and preparation method of fluorescent material | |
| CN114196402B (en) | Eu-doped ultrahigh chromogenic borophosphate and preparation method and application thereof | |
| CN112877063B (en) | Silicate red fluorescent powder for high-color-rendering LED illumination and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220707 Address after: 215400 No.6 Liangfu Road, Taicang City, Suzhou City, Jiangsu Province Patentee after: Jiangsu Institute of advanced inorganic materials Address before: 200050 No. 1295 Dingxi Road, Shanghai, Changning District Patentee before: SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCES |
|
| TR01 | Transfer of patent right |