CN106967430A - A kind of YAG:Mn4+Red fluorescent microspheres and preparation method thereof - Google Patents
A kind of YAG:Mn4+Red fluorescent microspheres and preparation method thereof Download PDFInfo
- Publication number
- CN106967430A CN106967430A CN201710202671.XA CN201710202671A CN106967430A CN 106967430 A CN106967430 A CN 106967430A CN 201710202671 A CN201710202671 A CN 201710202671A CN 106967430 A CN106967430 A CN 106967430A
- Authority
- CN
- China
- Prior art keywords
- chloride
- yag
- preparation
- deionized water
- formamide
- 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
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
- C09K11/7706—Aluminates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier 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 with at least one potential-jump barrier or surface barrier 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
A kind of YAG:Mn4+Red fluorescent microspheres and preparation method thereof.Disclosed by the invention is a kind of Mn applied to LED illumination4+Adulterate Y3Al5O12(YAG:Mn4+) red fluorescent microspheres and preparation method thereof, microsphere diameter is in 200nm~8 μ ms are adjustable, its preparation method is, as presoma, to be combined by sol-gal process with oxidizing atmosphere Technology for Heating Processing, microballoon is obtained under relatively low heat treatment temperature using metal inorganic salt.The problems such as current red fluorescence powder generally existing preparation technology complexity, powder in irregular shape, poor chemical stability, limit its mass market application.Preparation technology of the present invention is simple, and the preparation process cycle is short, and heat treatment temperature is low, can effectively reduce energy consumption, and raw material and equipment cost are cheap, is adapted to industrial-scale production.The YAG that the present invention is obtained:Mn4+Red fluorescent microspheres have regular shape, even size distribution, the features such as luminescent properties are excellent.
Description
Technical field
The present invention relates to the Mn applied to semiconductor lighting4+Adulterate Y3Al5O12(YAG:Mn4+) red fluorescent microspheres and its system
Preparation Method, belongs to solid state illumination technology field.
Background technology
LED is as new generation of environment protection lighting source, compared with conventional light source, with energy-conservation, efficient, small volume, life-span
Length, fast response time, driving voltage are low, anti-vibration the advantages of, have in lighting field and progressively replace now widely used white heat
The trend of lamp, fluorescent lamp.At present, realize that white light LEDs mainly there are three kinds of modes：
1st, blue-ray LED transmitting blue light excites yellow fluorescent powder, and some blue light is absorbed by fluorescent material, and excitated fluorescent powder transmitting is yellow
Light, the gold-tinted of transmitting and remaining blue light and obtain white light.This method market uses more, but because this mode is obtained
The white light arrived is partially blue, red light portion missing, and color rendering is poor, colour temperature is relatively colder, exists compared with big limitation.
2nd, red, green, blue three-primary color LED chip is pressed into certain way integrated combination, the three coloured light sent is mixed into white light.This
Kind of mode obtains that white light quality is more perfect, and luminous efficiency is high, color rendering is excellent, adjustable color, but is due to its circuit structure
The drawback such as complicated, structure is cumbersome, expensive, it is impossible to be widely popularized and use.
3rd, the three coloured light that near ultraviolet LED emitting ultraviolet light excites red, green, blue three primary colors fluorescent powder to send is mixed into white light.
The white light quality that this mode is obtained is relatively perfect, and luminous efficiency is higher, color rendering is excellent, adjustable color, but its is extensive
Application depend on the reduction of three primary colors fluorescent powder cost and the enhancing of chemical stability.
Fluorescent material is mainly prepared using high-temperature solid-phase sintering method in current industrialized production, generally existing preparation technology is numerous
Trivial, sintering temperature is high, and energy resource consumption is huge, the problems such as production cost is high, and due to the limitation of technology of preparing, prepared by solid sintering technology
Also there is grain shape irregularly in the fluorescent material gone out, the problems such as size is uneven has a strong impact on the optical property of LED component, because
This develops preparation technology simply, and less energy consumption, cost is low, and grain shape rule, the fluorescent material of even size distribution has very
Important meaning.In addition, commercialization white light LEDs are remained the problems such as red light portion develops the color not enough at present, it is also urgently to be resolved hurrily.
The content of the invention
Simple it is an object of the invention to provide a kind of technique, with low cost, luminescent properties are excellent, are adapted to industrialized production
The Mn that can be applied to semiconductor lighting4+Adulterate Y3Al5O12(YAG:Mn4+) red fluorescent microspheres and preparation method thereof.
The YAG of the present invention:Mn4+Fluorescent microsphere is Mn4+Adulterate Y3Al5O12The regular spheroid glowed, a diameter of 200nm~
8 μm, it can be applied to semiconductor lighting.The fluorescent microsphere has spheroid form rule, and even size distribution, diameter are adjustable, luminous
The features such as intensity is high.
Above-mentioned YAG:Mn4+The preparation method of red fluorescent microspheres, comprises the following steps：
1) crystal aluminum chloride in mass ratio：Six chloride hydrate yttriums：Manganese chloride：Charge balance agent：Ethanol：Deionized water：First
Acid amides：1,2 epoxy prapane=1：0.16~0.48：0.00013~0.00052：0~0.1071：0.65~1.08：0.45~
0.88：0.15~0.35：1.05~1.65, weigh crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride, charge balance agent, second
Alcohol, deionized water, formamide, 1,2 epoxy prapane；
2) under conditions of 25-80 DEG C of water bath with thermostatic control, by crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride and electric charge
Poising agent is completely dissolved in the mixed solution of deionized water, ethanol and formamide, then adds 1,2- expoxy propane, and stirring is equal
Even, standing, obtains gel；
3) by gel in being dried 3~10 hours under 60~90 DEG C of constant temperatures, then grinding distribution, then 1000~
1400 DEG C are heat-treated 2~6 hours in oxygen atmosphere, obtain YAG:Mn4+Red fluorescent microspheres.
Heretofore described charge balance agent can be titanium chloride, sodium chloride, magnesium chloride, calcium chloride or potassium chloride.
Preparation technology of the present invention is simple, and the preparation process cycle is short, and heat treatment temperature is low, can effectively reduce energy consumption, and raw material
And equipment cost is cheap, it is adapted to industrial-scale production, great actual application value.YAG produced by the present invention:Mn4+It is red glimmering
Light microballoon has a regular shape, even size distribution, diameter in 200nm~8 μ ms are adjustable, good crystallinity, purity is high, it is each to
The features such as same sex, excellent luminescent properties, it can be widely used for making White-light LED illumination device.
Brief description of the drawings
Fig. 1 is YAG:Mn4+The X ray diffracting spectrum of red fluorescent microspheres；
Fig. 2 is YAG:Mn4+The electron scanning micrograph of red fluorescent microspheres；
Fig. 3 is YAG:Mn4+The excitation spectrum and emission spectrum of red fluorescent microspheres.Solid line is under 674nm is monitored in figure
Excitation spectrum, dotted line is the emission spectrum that 310nm excites acquisition.
Embodiment
Embodiment 1
1) crystal aluminum chloride in mass ratio：Six chloride hydrate yttriums：Manganese chloride：Ethanol：Deionized water：Formamide：1,2- rings
Ethylene Oxide=1：0.32：0.00026：0.95：0.88：0.25：1.55, weigh crystal aluminum chloride, six chloride hydrate yttriums, chlorination
Manganese, ethanol, deionized water, formamide and 1,2 epoxy prapane；
2) under conditions of 25 DEG C of waters bath with thermostatic control, crystal aluminum chloride, six chloride hydrate yttriums and manganese chloride are completely dissolved in
In deionized water, formamide and alcohol mixed solution, 1,2- expoxy propane is then added, stirring is stood after 30 seconds, obtains white
Gel；
3) gel is placed in drying 5 hours under 80 DEG C of constant temperatures, then grinding distribution, by it 1400 under oxygen atmosphere
DEG C insulation 4 hours, YAG is obtained after cooling:Mn4+Microballoon.
Fig. 1 is YAG:Mn4+The X ray diffracting spectrum of microballoon, shows obtained YAG:Mn4+Microballoon has excellent crystallization
Degree and purity, without other dephasigns.Fig. 2 is YAG:Mn4+The electron scanning micrograph of microballoon, as seen from the figure YAG:Mn4+Microballoon
With regular shape, the characteristics of even size distribution, microsphere diameter is distributed as 2~8 μm, wherein based on 3 μm or so of microballoon.
Fig. 3 is YAG:Mn4+The excitation spectrum and emission spectrum of microballoon, as seen from the figure, the YAG that the present invention is prepared:Mn4+Microballoon is sent out
Luminescent material sends 674nm feux rouges under 310nm ultraviolet excitations, can be applied to LED illumination.
Embodiment 2
1) crystal aluminum chloride in mass ratio：Six chloride hydrate yttriums：Manganese chloride：Magnesium dichloride hexahydrate：Ethanol：Deionized water：
Formamide：1,2 epoxy prapane=1：0.32：0.00013：0.1071：0.95：0.88：0.25：1.55, weigh crystallization chlorination
Aluminium, six chloride hydrate yttriums, manganese chloride, Magnesium dichloride hexahydrate, ethanol, deionized water, formamide and 1,2 epoxy prapane；
2) under conditions of 25 DEG C of waters bath with thermostatic control, by crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride and six chloride hydrates
Magnesium is completely dissolved in deionized water, formamide and alcohol mixed solution, then adds 1,2- expoxy propane, quiet after stirring 30 seconds
Put, obtain white gels；
3) gel is placed in drying 5 hours under 70 DEG C of constant temperatures, then grinding distribution, by it 1200 under oxygen atmosphere
DEG C insulation 2 hours, YAG is obtained after cooling:Mn4+Microballoon powder, microsphere diameter is distributed as 2~6 μm, regular shape, Size Distribution
Uniformly.
Embodiment 3
1) crystal aluminum chloride in mass ratio：Six chloride hydrate yttriums：Manganese chloride：Magnesium dichloride hexahydrate：Ethanol：Deionized water：
Formamide：1,2 epoxy prapane=1：0.16：0.00052：0.0060：0.85：0.71：0.25：1.55, weigh crystallization chlorination
Aluminium, six chloride hydrate yttriums, manganese chloride, Magnesium dichloride hexahydrate, ethanol, deionized water, formamide and 1,2 epoxy prapane；
2) under conditions of 40 DEG C of waters bath with thermostatic control, by crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride and six chloride hydrates
Magnesium is completely dissolved in deionized water, formamide and alcohol mixed solution, then adds 1,2- expoxy propane, quiet after stirring 30 seconds
Put, obtain white gels；
3) gel is placed in drying 5 hours under 80 DEG C of constant temperatures, then grinding distribution, by it 1100 under oxygen atmosphere
DEG C insulation 3 hours, YAG is obtained after cooling:Mn4+Microballoon, microsphere diameter is distributed as 1~4 μm, regular shape, even size distribution.
Embodiment 4
1) crystal aluminum chloride in mass ratio：Six chloride hydrate yttriums：Manganese chloride：Sodium chloride：Ethanol：Deionized water：Formamide：
1,2 epoxy prapane=1：0.32：0.00026：0.0084：1.08：0.65：0.25：1.55, weigh crystal aluminum chloride, six hydrations
Yttrium chloride, manganese chloride, sodium chloride, ethanol, deionized water, formamide and 1,2 epoxy prapane；
2) it is under conditions of 60 DEG C of waters bath with thermostatic control, crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride and sodium chloride is abundant
It is dissolved in deionized water, formamide and alcohol mixed solution, then adds 1,2- expoxy propane, stirring stands after 30 seconds, obtained
To white gels；
3) gel is placed in drying 8 hours under 70 DEG C of constant temperatures, then grinding distribution, by it 1000 under oxygen atmosphere
DEG C insulation 6 hours, YAG is obtained after cooling:Mn4+Microballoon powder, microsphere diameter is distributed as 0.5~2.7 μm, regular shape, size point
Cloth is uniform.
Embodiment 5
1) crystal aluminum chloride in mass ratio：Six chloride hydrate yttriums：Manganese chloride：Potassium chloride：Ethanol：Deionized water：Formamide：
1,2 epoxy prapane=1：0.32：0.00013：0.0084：0.95：0.88：0.25：1.20, weigh crystal aluminum chloride, six hydrations
Yttrium chloride, manganese chloride, potassium chloride, ethanol, deionized water, formamide and 1,2 epoxy prapane；
2) it is under conditions of 40 DEG C of waters bath with thermostatic control, crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride and potassium chloride is abundant
It is dissolved in deionized water, formamide and alcohol mixed solution, then adds 1,2- expoxy propane, stirring stands after 30 seconds, obtained
To white gels；
3) gel is placed in drying 10 hours under 60 DEG C of constant temperatures, then grinding distribution, 1400 DEG C under oxygen atmosphere
Insulation 2 hours, obtains YAG after cooling:Mn4+Microballoon powder, microsphere diameter is distributed as 0.5~4 μm, regular shape, Size Distribution
Uniformly.
Embodiment 6
1) crystal aluminum chloride in mass ratio：Six chloride hydrate yttriums：Manganese chloride：Calcium chloride：Ethanol：Deionized water：Formamide：
1,2 epoxy prapane=1：0.16：0.00052：0.0060：0.85：0.71：0.15：1.55, weigh crystal aluminum chloride, six hydrations
Yttrium chloride, manganese chloride, calcium chloride, ethanol, deionized water, formamide and 1,2 epoxy prapane；
2) it is under conditions of 70 DEG C of waters bath with thermostatic control, crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride and calcium chloride is abundant
It is dissolved in deionized water, formamide and alcohol mixed solution, then adds 1,2- expoxy propane, stirring stands after 30 seconds, obtained
To white gels；
3) gel is placed under 80 DEG C of constant temperatures and dried 3 hours, then grinding distribution, is protected for 1200 DEG C under oxygen atmosphere
Temperature 4 hours, obtains YAG after cooling:Mn4+Microballoon, microsphere diameter is distributed as 0.3~3 μm, regular shape, even size distribution.
Embodiment 7
1) crystal aluminum chloride in mass ratio：Six chloride hydrate yttriums：Manganese chloride：Potassium chloride：Ethanol：Deionized water：Formamide：
1,2 epoxy prapane=1：0.16：0.00052：0.0060：0.85：0.71：0.35：1.65, weigh crystal aluminum chloride, six hydrations
Yttrium chloride, manganese chloride, potassium chloride, ethanol, deionized water, formamide and 1,2 epoxy prapane；
2) it is under conditions of 80 DEG C of waters bath with thermostatic control, crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride and potassium chloride is abundant
It is dissolved in deionized water, formamide and alcohol mixed solution, then adds 1,2- expoxy propane, stirring stands after 30 seconds, obtained
To white gels；
3) gel is placed under 60 DEG C of constant temperatures and dried 6 hours, then grinding distribution, is protected for 1000 DEG C under oxygen atmosphere
Temperature 4 hours, obtains YAG after cooling:Mn4+Microballoon, microsphere diameter is distributed as 0.2~2 μm, regular shape, even size distribution.
Embodiment 8
1) crystal aluminum chloride in mass ratio：Six chloride hydrate yttriums：Manganese chloride：Titanium chloride：Ethanol：Deionized water：Formamide：
1,2 epoxy prapane=1：0.48：0.00026：0.0084：0.95：0.88：0.25：1.55, weigh crystal aluminum chloride, six hydrations
Yttrium chloride, manganese chloride, titanium chloride, ethanol, deionized water, formamide and 1,2 epoxy prapane；
2) it is under conditions of 25 DEG C of waters bath with thermostatic control, crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride and titanium chloride is abundant
It is dissolved in deionized water, formamide and alcohol mixed solution, then adds 1,2- expoxy propane, stirring stands after 30 seconds, obtained
To white gels；
3) gel is placed in drying 5 hours under 80 DEG C of constant temperatures, then grinding distribution, by it 1400 under oxygen atmosphere
DEG C insulation 6 hours, YAG is obtained after cooling:Mn4+Microballoon, microsphere diameter is distributed as 0.2~2 μm, and regular shape, Size Distribution is equal
It is even.
Embodiment 9
1) crystal aluminum chloride in mass ratio：Six chloride hydrate yttriums：Manganese chloride：Magnesium dichloride hexahydrate：Ethanol：Deionized water：
Formamide：1,2 epoxy prapane=1：0.32：0.00013：0.1071：0.95：0.88：0.25：1.05, weigh crystallization chlorination
Aluminium, six chloride hydrate yttriums, manganese chloride, Magnesium dichloride hexahydrate, ethanol, deionized water, formamide and 1,2 epoxy prapane；
2) under conditions of 25 DEG C of waters bath with thermostatic control, by crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride and six chloride hydrates
Magnesium is completely dissolved in deionized water, formamide and alcohol mixed solution, then adds 1,2- expoxy propane, quiet after stirring 30 seconds
Put, obtain white gels；
3) gel is placed in drying 5 hours under 80 DEG C of constant temperatures, then grinding distribution, by it 1400 under oxygen atmosphere
DEG C insulation 6 hours, YAG is obtained after cooling:Mn4+Microballoon, microsphere diameter is distributed as 2~5 μm, regular shape, even size distribution.
Embodiment 10
1) crystal aluminum chloride in mass ratio：Six chloride hydrate yttriums：Manganese chloride：Magnesium dichloride hexahydrate：Ethanol：Deionized water：
Formamide：1,2 epoxy prapane=1：0.16：0.00052：0.0060：0.65：0.45：0.25：1.55, weigh crystallization chlorination
Aluminium, six chloride hydrate yttriums, manganese chloride, Magnesium dichloride hexahydrate, ethanol, deionized water, formamide and 1,2 epoxy prapane；
2) under conditions of 40 DEG C of waters bath with thermostatic control, by crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride and six chloride hydrates
Magnesium is completely dissolved in deionized water, formamide and alcohol mixed solution, then adds 1,2- expoxy propane, quiet after stirring 30 seconds
Put, obtain white gels；
3) gel is placed in drying 5 hours under 90 DEG C of constant temperatures, then grinding distribution, by it 1300 under oxygen atmosphere
DEG C insulation 6 hours, YAG is obtained after cooling:Mn4+Microballoon, microsphere diameter is distributed as 1~4 μm, regular shape, even size distribution.
Claims (3)
1. a kind of YAG:Mn4+Fluorescent microsphere, it is characterised in that the fluorescent microsphere is Mn4+Adulterate Y3Al5O12The regular ball that glows
Body, a diameter of 200nm~8 μm, can be applied to semiconductor lighting.
2. YAG as claimed in claim 1:Mn4+The preparation method of fluorescent microsphere, it is characterised in that comprise the following steps：
1) in mass ratio it is crystal aluminum chloride：Six chloride hydrate yttriums：Manganese chloride：Charge balance agent：Ethanol：Deionized water：Formyl
Amine：1,2 epoxy prapane=1：0.16~0.48：0.00013~0.00052：0~0.1071：0.65~1.08：0.45~
0.88：0.15~0.35：1.05~1.65, weigh crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride, charge balance agent, second
Alcohol, deionized water, formamide, 1,2 epoxy prapane are standby；
2) under conditions of 25-80 DEG C of water bath with thermostatic control, by crystal aluminum chloride, six chloride hydrate yttriums, manganese chloride and charge balance
Agent is completely dissolved in the mixed solution of deionized water, ethanol and formamide, then adds 1,2- expoxy propane, stir,
Stand, obtain gel；3) by gel in being dried 3~10 hours under 60~90 DEG C of constant temperatures, then grinding distribution, then exists
1000~1400 DEG C are heat-treated 2~6 hours in oxygen atmosphere, obtain YAG:Mn4+Red fluorescent microspheres.
3. YAG according to claim 2:Mn4+The preparation method of fluorescent microsphere, it is characterised in that described charge balance
Agent is titanium chloride, sodium chloride, magnesium chloride, calcium chloride or potassium chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202671.XA CN106967430A (en) | 2017-03-30 | 2017-03-30 | A kind of YAG:Mn4+Red fluorescent microspheres and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202671.XA CN106967430A (en) | 2017-03-30 | 2017-03-30 | A kind of YAG:Mn4+Red fluorescent microspheres and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106967430A true CN106967430A (en) | 2017-07-21 |
Family
ID=59336325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710202671.XA Pending CN106967430A (en) | 2017-03-30 | 2017-03-30 | A kind of YAG:Mn4+Red fluorescent microspheres and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106967430A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503352A (en) * | 2018-03-27 | 2018-09-07 | 中国科学院上海硅酸盐研究所 | A kind of garnet-base red fluorescence ceramic material and preparation method thereof |
| CN108822848A (en) * | 2018-05-21 | 2018-11-16 | 沈阳化工大学 | A kind of garnet fluorescent powder and its preparation method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046357A (en) * | 2014-05-26 | 2014-09-17 | 浙江大学 | YAG fluorescent powder used in semiconductor illumination and preparation method thereof |
| CN105331364A (en) * | 2015-10-12 | 2016-02-17 | 杭州电子科技大学 | YAG:Mn red phosphor, preparation method and applications thereof |
-
2017
- 2017-03-30 CN CN201710202671.XA patent/CN106967430A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046357A (en) * | 2014-05-26 | 2014-09-17 | 浙江大学 | YAG fluorescent powder used in semiconductor illumination and preparation method thereof |
| CN105331364A (en) * | 2015-10-12 | 2016-02-17 | 杭州电子科技大学 | YAG:Mn red phosphor, preparation method and applications thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503352A (en) * | 2018-03-27 | 2018-09-07 | 中国科学院上海硅酸盐研究所 | A kind of garnet-base red fluorescence ceramic material and preparation method thereof |
| CN108822848A (en) * | 2018-05-21 | 2018-11-16 | 沈阳化工大学 | A kind of garnet fluorescent powder and its preparation method and application |
| CN108822848B (en) * | 2018-05-21 | 2021-03-26 | 沈阳化工大学 | Dark red fluorescent powder and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9711686B2 (en) | Lighting device with plural fluorescent materials | |
| KR101833618B1 (en) | Phosphor with preferred orientation, fabricating method thereof, and light-emitting element package structure employing the same | |
| CN105331364A (en) | YAG:Mn red phosphor, preparation method and applications thereof | |
| TW201231620A (en) | Green light-emitting phosphor and light-emitting device | |
| Dutta et al. | An efficient green-emitting Ba 5 Si 2 O 6 Cl 6: Eu 2+ phosphor for white-light LED application | |
| CN101445729B (en) | Preparation method of phosphor powder for white LED | |
| CN101307228B (en) | Chlorine-aluminosilicate fluorescent powder and method for preparing same | |
| CN106967430A (en) | A kind of YAG:Mn4+Red fluorescent microspheres and preparation method thereof | |
| CN105670615B (en) | A kind of strontium aluminate cage type microballoon luminescent material of divalent europium doping and preparation method thereof | |
| CN103468264A (en) | Manufacture method of polycrystalline Ce:YAG fluorophor | |
| CN107033882A (en) | A kind of Mn4+Cryolite lithium red light material of doping and preparation method thereof | |
| CN107057695A (en) | A kind of fluostannic acid potassium sodium mixes Mn4+Red light material and preparation method thereof | |
| CN104726097A (en) | Novel yellow fluorescent powder and preparation method thereof | |
| Chung et al. | Spray pyrolysis synthesis of MAl2O4: Eu2+ (M= Ba, Sr) phosphor for UV LED excitation | |
| CN104212457B (en) | Fluoroborosilicate-based red phosphor, and preparation method and application thereof | |
| CN106544027B (en) | A kind of red fluorescence powder and preparation method thereof based on nitride | |
| CN105385441B (en) | A kind of alkaline-earth-metal silicate is green/yellowish green fluorescent powder and its preparation method and application | |
| Tran et al. | Achieving High Luminescent Performance K 2 SiF 6: Mn 4+ Phosphor by Co-precipitation Process with Controlling the Reaction Temperature | |
| CN104212449A (en) | Ultraviolet-excited oxynitride red-light fluorescent powder and preparation method thereof | |
| TWI567166B (en) | Phosphors with preferred orientation, fabricating method thereof, and light emitting element package structure employing the same | |
| CN107686726A (en) | A kind of white light LEDs lithium fluorosilicate sodium red light material and preparation method thereof | |
| CN107345135A (en) | Rare-earth europium activation molybdate base red fluorescent powder and preparation method thereof | |
| CN105670626B (en) | A kind of super large particle diameter YAG:Ce3+Yellow fluorescent powder and preparation method thereof | |
| CN107033891B (en) | A kind of white light LEDs red light material and preparation method thereof based on fluozirconate | |
| Zhang et al. | Advances and Future of White LED Phosphors for Solid‐State Lighting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170721 |