CN106381145A - Preparation method of NaY(MoO4)2:Eu<3+>, Tb<3+> series fluorescent powder - Google Patents
Preparation method of NaY(MoO4)2:Eu<3+>, Tb<3+> series fluorescent powder Download PDFInfo
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- 229910015667 MoO4 Inorganic materials 0.000 title claims abstract description 44
- 239000000843 powder Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims description 27
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 claims description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 10
- 229910002651 NO3 Inorganic materials 0.000 claims description 8
- GAGGCOKRLXYWIV-UHFFFAOYSA-N europium(3+);trinitrate Chemical compound [Eu+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O GAGGCOKRLXYWIV-UHFFFAOYSA-N 0.000 claims description 7
- 229960002989 glutamic acid Drugs 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- YJVUGDIORBKPLC-UHFFFAOYSA-N terbium(3+);trinitrate Chemical compound [Tb+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O YJVUGDIORBKPLC-UHFFFAOYSA-N 0.000 claims description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- 238000005119 centrifugation Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 3
- BXJPTTGFESFXJU-UHFFFAOYSA-N yttrium(3+);trinitrate Chemical compound [Y+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O BXJPTTGFESFXJU-UHFFFAOYSA-N 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 2
- 238000002242 deionisation method Methods 0.000 claims 1
- 230000005284 excitation Effects 0.000 abstract description 10
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 8
- -1 rare earth ion Chemical class 0.000 abstract description 6
- 238000011161 development Methods 0.000 abstract description 4
- 239000011159 matrix material Substances 0.000 abstract description 4
- 238000012546 transfer Methods 0.000 abstract description 4
- 238000004611 spectroscopical analysis Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 17
- 229910052771 Terbium Inorganic materials 0.000 description 15
- 229910052693 Europium Inorganic materials 0.000 description 14
- 239000013078 crystal Substances 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 9
- 230000009102 absorption Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 7
- 230000007704 transition Effects 0.000 description 7
- 238000001027 hydrothermal synthesis Methods 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 229910017299 Mo—O Inorganic materials 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 5
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000000695 excitation spectrum Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910052692 Dysprosium Inorganic materials 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 229940024606 amino acid Drugs 0.000 description 2
- 235000001014 amino acid Nutrition 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 2
- 235000013922 glutamic acid Nutrition 0.000 description 2
- 239000004220 glutamic acid Substances 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- 230000003407 synthetizing effect Effects 0.000 description 2
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 2
- DWNBOPVKNPVNQG-LURJTMIESA-N (2s)-4-hydroxy-2-(propylamino)butanoic acid Chemical compound CCCN[C@H](C(O)=O)CCO DWNBOPVKNPVNQG-LURJTMIESA-N 0.000 description 1
- NGDQQLAVJWUYSF-UHFFFAOYSA-N 4-methyl-2-phenyl-1,3-thiazole-5-sulfonyl chloride Chemical compound S1C(S(Cl)(=O)=O)=C(C)N=C1C1=CC=CC=C1 NGDQQLAVJWUYSF-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 229910015621 MoO Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052773 Promethium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910002412 SrMoO4 Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 229910019990 cerium-doped yttrium aluminum garnet Inorganic materials 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005595 deprotonation Effects 0.000 description 1
- 238000010537 deprotonation reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000009647 facial growth Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002189 fluorescence spectrum Methods 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 125000001905 inorganic group Chemical group 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- VQMWBBYLQSCNPO-UHFFFAOYSA-N promethium atom Chemical compound [Pm] VQMWBBYLQSCNPO-UHFFFAOYSA-N 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 238000010532 solid phase synthesis reaction Methods 0.000 description 1
- 238000003836 solid-state method Methods 0.000 description 1
- 238000010671 solid-state reaction Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- FRNOGLGSGLTDKL-UHFFFAOYSA-N thulium atom Chemical compound [Tm] FRNOGLGSGLTDKL-UHFFFAOYSA-N 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
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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
- C09K11/77—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
- C09K11/7794—Vanadates; Chromates; Molybdates; Tungstates
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
The invention discloses a preparation method of NaY(MoO4)2:Eu<3+>, Tb<3+> series fluorescent powder. The fluorescent spectroscopy result of the NaY(MoO4)2:Eu<3+>, Tb<3+> series fluorescent powder synthesized from two-component rare earth ion co-doped single matrix shows that in energy transfer from MoO4<2+> to Eu<3+> and Tb<3+> co-exist in Eu<3+> and Tb<3+> co-doped molybdate NaY(MoO4)2:Eu<3+>, Tb<3+>. The color coordinates of the obtained sample show that along with the increase of the Tb<3+> doping amount, the luminescent color of the sample changes, regulatability of the luminescent color is realized, and when the doped Eu<3+> and Tb<3+> are in a mole ratio of 4/3, the sample emits monochromatic cold white light under ultraviolet excitation. Therefore, the invention provides a theoretical basis for LED lamps to realize white light application in fluorescence regulation and two-component rare earth ion co-doped single matrix and development thereof.
Description
Technical field
The present invention relates to fluorescent material preparation field is and in particular to a kind of NaY (MoO4)2：Eu3+, Tb3+The system of series phosphor powder
Preparation Method.
Background technology
The existing three major types of the development comparative maturity of lighting source at present：Incandescent lamp bulb, common and compact fluorescent lamp and
Different types of high-intensity gas discharge lamp, belongs to vacuum point source device, the pluses and minuses that they are had nothing in common with each other.Pass through within 1996
Using GaN-LED chip and YAG：Ce3+Phosphor combination sends white light, develops first white light LEDs solid light in mankind's history
Source, hereafter, constantly improves with society, gradually finds that white light LEDs have small volume, energy-conservation, caloric value is little, power consumption is low, ring
Guarantor, the long-life, can planar package and design the advantages of facilitate, obtained extensive concern and the research of the mankind, be referred to as the 4th
For lighting source, application prospect is very wide.With white LED lamp in the application of every field and its development, realize white light LEDs
The method of lamp is mainly obtained by following three kinds of modes：
(1) multi-colored led combined method, conventional is that red, green, blue three-primary color LED chip portfolio realizes single white light, but it
The driving voltage of assorted LED, light distribution characteristic, the difference of luminous efficiency etc. cause its mounting structure more complicated, Er Qiehong,
The intensity of green, blue three primary colours needs to adjust by electric current, and circuit realiration is more difficult, simultaneously with the rising of temperature, each LED device
Part luminosity declines difference substantially, causes the unstability of mixed white light, additionally, realized white with the assembling of three-primary color LED chip
Light price is very expensive.
(2) MQW method, is so that LED is directly emitted white light using multiple active layers.
(3) utilize fluorescent powder coated light to change method and obtain white light, refer to using one piece of monochromatic semiconductor chip with a kind of or
The combination of multiple fluorophor, the ultraviolet light that chip sends is converted into visible ray or the blue light components that chip sent by fluorophor
Be converted to HONGGUANG (or yellow, green glow), then lens are combined into white light.At present, fluorophor is converted into white light LEDs following three kinds of sides
Method：
1. using launching the LED of blue light as excitaton source, combine with a kind of fluorophor of yellow emission, gold-tinted is with LED not
Absorbed residue blue light produces the light mixture of colours, is combined into white light through lensing.
2. using launching the LED of blue light as excitaton source, two kinds of light (HONGGUANG and green glow) can be launched with one kind simultaneously
Fluorophor combination, the HONGGUANG sending and green glow residue unabsorbed with LED blue light produces the light mixture of colours through lensing
It is combined into white light.
3. using launching the LED of purple light (or ultraviolet light) as excitaton source, red, green, blue can be launched with one kind simultaneously
Three kinds of light and having are combined with the fluorophor of chip emission wavelength identical excitation wavelength, and the three coloured light that fluorophor sends is through thoroughly
Mirror effect is combined into white light.
With respect to first two method, its advantage is mainly as follows：As light source, fluorophor obtains and more holds chip piece
Easily, circuit design is simple with control, and cost is relatively low, mature preparation process, and characteristic is easy to adjust, and spectral distribution width becomes current
The focus of the research field of luminescent material.But this method also has some shortcomings：Above-mentioned 1. in because lacking red color components and causing
Color rendering index is not high, and fluorescent material is easily influenced by temperature the drift causing color；Above-mentioned 2. and 3. in default of having
The heat stability of the fluorescent material of red color components or red fluorescence powder is poor, causes effectively to absorb ultraviolet light, lights
Intensity and blue powder, green powder compare too weak.Its color rendering properties, stability and cost are had a greatly reduced quality.Therefore, stablizing red fluorescence powder becomes
Improve the key factor of white LED lamp application.People in order to obtain more preferable fluorescent material, as the most important base of synthetizing phosphor powder
Matter becomes, with the synthetic method of activator and fluorescent material, the focus that people study.
In recent years, molybdate is because its unique physics and chemical characteristic are in fluorescent material, fiber optics, solid state laser and magnetic
The fields such as body obtain extensive concern, and rear-earth-doped molybdate is due to having abundant crystal structure form and outstanding photism
Can, molybdate belongs to tetragonal crystal system, Mo6+Positioned at tetrahedral symmetrical centre, by four O2-Surround, (MoO4)2-Group is near
As tetrahedral, Mo-O charge migration has stronger absorption in ultra-violet (UV) band.It is well known that scheelite in inorganic matters
The molybdate of structure is an important part in inorganic material, and China's molybdate resources reserve is more abundant, it would be preferable to support
Researcher is studied to this kind of material for a long time, and a lot of fields all utilize the different material substance of its different characteristic research
And greatly developed.ARE(MoO4)2(A=Li, Na, K；RE=trivalent rare earth ionses Y, Gd, La, Lu), and NaY (MoO4)2
It is one kind therein, it is tetragonal crystal system, structure and SrMoO4More similar.Synthesis NaY (MoO4)2Method multiplex greatly more
Ripe high temperature solid-state method synthesis, recently, You et al. has successfully synthesized submicron order respectively using coprecipitation and hydro-thermal method
NaGd(MoO4)2Fluorescent material, Jiang Yingying successfully synthesizes the NaGd with octahedral structure using glutamic acid assisting alcohol-hydrothermal method
(MoO4)2：Eu3+, Tb3+Fluorescent material.Kislitsyn etc. have studied in solid state reaction the crystal structure of material and defect sturcture and
The impact of the luminescent properties to fluorescent material for the composition.In the method for synthetizing phosphor powder, wherein traditional, ripe method is high
Warm solid phase method, is that drying etc. is pre- by highly purified various pressed powder raw materials after sufficient ground and mixed is uniform
Processing procedure removes moisture, volatile material and organic impuritiess, is placed in reacting furnace to enter under the environment such as certain temperature, time
Row calcining, then cooling, pulverizing, screening, obtain target fluorescent powder product.This method have easy to operate, be inexpensively easily achieved industry
The advantages of metaplasia is produced, but the defect such as product calcining heat is too high, crystal grain is big, particle size distribution is uneven.Researcher passes through
The methods such as raw material pretreatment activating, optimisation technique parameter, addition cosolvent, post processing processing optimize fluorescent powder grain pattern,
So that fluorescence property is improved.
The most relatively simple effective synthetic method is hydro-thermal method in the lab, be common method in liquid phase synthesizing method it
One.Larger-size monocrystal can be obtained using hydro-thermal method, also can obtain ultramicron and prepare inorganic ceramic thin film.Hydro-thermal
Reaction is carried out in liquid phase rapid convective, and therefore product rate and purity are high, particle dispersion is good, it is to avoid because of high-temperature calcination or ball
The defect on unnecessary impurity and structure is introduced in the post processors such as mill.But the deficiency of hydro-thermal method is for water sensitive
The system of (hydrolyze, decompose and unstable) cannot be suitable for.
Concentrate two big class factors of research impact red fluorescence powder as LED：Substrate and activator, its mesostroma is with molybdenum
In hydrochlorate, Mo-O charge migration has stronger absorption in ultra-violet (UV) band, in some mineral crystals, often has in absorption spectrum
The absworption peak in some broadbands, these absworption peaks are typically derived from inorganic group absorptions, and are located near ultraviolet region.In spectrum
In experiment, using these absorption bands position come excitation light-emitting material, often can obtain the characteristic light of very strong rare earth ion,
Show that substrate is existing to the energy transmission of dopant ion, these rare earth ions are lanthanide series lanthanums in the periodic table of chemical element
(La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium
(Er), thulium (Tm), ytterbium (Yb), lutecium (Lu), and two elements scandium (Sc) with main group and yttrium (Y) totally 17 kinds of elements are (often
Represented with R or Re).Mainly with rare earths such as europium (Eu), terbium (Tb), dysprosium (Dy), lanthanums (La) as main component.Different rare earth ions it
Between energy level pair energy match situation a lot, there is energy transmission from each other so that the luminescence enhancement of certain ion, and another
The luminescent decay of individual ion, and the original form of fluorescence emission spectrum in the case of single ionic can be changed.
Content of the invention
It is an object of the invention to provide a kind of NaY (MoO4)2：Eu3+, Tb3+The preparation method of series phosphor powder.
For achieving the above object, the technical scheme that the present invention takes is：
A kind of NaY (MoO4)2：Eu3+, Tb3+The preparation method of series phosphor powder, comprises the steps：
S1, take a certain amount of Yttrium trinitrate, europium nitrate, Terbium nitrate (Tb(NO3)3) to be separately added into deionized water constant volume, join 0.1mol/L respectively
Yttrium nitrate solution 50mL, the Terbium nitrate (Tb(NO3)3) solution 50mL of europium nitrate solution 50mL and 0.05mol/L of 0.05mol/L, standby；
S2, measure the Y (NO that the 0.1mol/L of 9.3mL prepares respectively3)3Solution, the 0.05mol/L of 0.8mL prepare
Eu(NO3)3Tb (the NO that the 0.05mol/L of solution and 0.6mL prepares3)3Solution, Y in molar ratio3+∶Eu3+∶Tb3+=93: 4: 3
It is mixed in the conical flask of 50mL, add 0.3030g L-Glutamic Acid [n (RE3+): n (Glu)=1: 2], magnetic force stirs at room temperature
Mix 40min, obtain solution A；
S3, in molar ratio n (RE3+)∶n(Mo6+The ratio of)=1: 1 weighs the Na of 0.4984g2MoO4It is dissolved in a certain amount of going
In ionized water, obtain solution B；
S4, solution B is added dropwise in solution A, now pH value of solution=6, after magnetic agitation 60min under room temperature, moves into
In 50mL reactor, react 12h under 170 DEG C of hydrothermal condition, washing, centrifugation, with a temperature of 600 DEG C in Muffle furnace
Burn 6h, obtain final product fluorescent material.
Wherein, gained fluorescent material is monochromatic cool white light transmitting under burst of ultraviolel.
The invention has the advantages that：
NaY (the MoO of the single-matrix synthesis being co-doped with by double-component rare earth ion4)2：Eu3+, Tb3+Series phosphor powder, and
By XRD, scanning electron microscope (SEM) microscope, spectrofluorophotometer, the structure of sample is characterized and tested.X-ray
Diffraction (XRD) analysis shows, the sample of preparation is tetragonal crystal system NaY (MoO4)2.Scanning electron microscope analysis (SEM) show, prepared
Sample be the octahedral bodily form, spectrofluorimetry result shows, in Eu3+With Tb3+Molybdate NaY (the MoO being co-doped with4)2：Eu3+,
Tb3+In, there is MoO simultaneously4 2+To Eu3+And Tb3+Energy transmission.By the chromaticity coordinates of gained sample can be seen that with
Tb3+The increase of doping, the glow color of sample there occurs change it is achieved that the Modulatory character of glow color, and in working as Eu3+/
Tb3+When the lower mol ratio of doping is 4/3, sample monochromatic cool white light transmitting under burst of ultraviolel.For LED in fluorescence regulation and control and
The single-matrix that double-component rare earth ion is co-doped with realizes white applications and its development provides necessary theoretical basiss.
Brief description
Fig. 1 is the XRD spectra of gained sample in the embodiment of the present invention.
Fig. 2 is the NaY (MoO in the embodiment of the present invention4)2：Eu3+, Tb3+Stereoscan photograph under different amplification.
Fig. 3 is the NaY (MoO in the embodiment of the present invention4)2：Eu3+Exciting light spectrogram.
Fig. 4 is NaY (MoO in the embodiment of the present invention4)2：Tb3+Exciting light spectrogram.
Fig. 5 is the NaY (MoO in the embodiment of the present invention4)2：Eu3+, Tb3+Exciting light spectrogram.
Fig. 6 is the NaY (MoO in the embodiment of the present invention4)2：Eu3+Launching light spectrogram.
Fig. 7 is the NaY (MoO in the embodiment of the present invention4)2：Tb3+Launching light spectrogram.
Fig. 8 is the NaY (MoO in the embodiment of the present invention4)2：Eu3+, Tb3+Exciting light spectrogram.
Fig. 9 is different Eu3+/Tb3+NaY (the MoO of doping content4)2：Eu3+, Tb3+Launching light spectrogram；(a) 4%Eu3+；(b)
4%Eu3+, 1%Tb3+(c) 4%Eu3+, 2%Tb3+；(d) 4%Eu3+, 3%Tb3+；(e) 4%Eu3+, 4%Tb3+；(f) 4%Tb3+.
Figure 10 is the chromaticity coordinates figure corresponding to Fig. 9.
Specific embodiment
In order that objects and advantages of the present invention become more apparent, with reference to embodiments the present invention is carried out further
Describe in detail.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit this
Bright.
Embodiment
Take a certain amount of Yttrium trinitrate, europium nitrate, Terbium nitrate (Tb(NO3)3) to be separately added into deionized water constant volume, join the nitre of 0.1mol/L respectively
The Terbium nitrate (Tb(NO3)3) solution 50mL of sour yttrium solution 50mL, europium nitrate solution 50mL and 0.05mol/L of 0.05mol/L.In case it is subsequently real
Test use.
With NaY (MoO4)2：Eux 3+, Tby 3+(x=4%；Y=3% as a example) preparing：Weigh 9.3mL, 0.1mol/L respectively to join
Y (the NO making3)3Solution, the Eu (NO that 0.8mL, 0.05mol/L prepare3)3Solution and 0.6mL, 0.05mol/L prepare
Tb(NO3)3Solution (Y in molar ratio3+∶Eu3+∶Tb3+=93: 4: 3) it is mixed in the conical flask of 50mL, add 0.3030g L- paddy
Propylhomoserin [n (RE3+): n (Glu)=1: 2], magnetic agitation 40min at room temperature, it is designated as solution A.[(n (RE in molar ratio3+)∶n
(Mo6+)=1: 1)] ratio weighs the Na of 0.4984g2MoO4It is dissolved in a certain amount of deionized water, be designated as solution B.By solution B
It is added dropwise in solution A, now pH value of solution=6, after magnetic agitation 60min under room temperature, move in 50mL reactor, 170
DEG C hydrothermal condition under react 12h, washing, centrifugation, in Muffle furnace with a temperature of 600 DEG C burn 6h, that is, obtain sample.
Fig. 1 is the XRD figure of fluorescent powder, it can be seen that the diffraction maximum of sample is most of and tetragonal crystal system
NaY(MoO4)2Standard card (20-1179) is similar, wherein carriesFor Eu2MoO12Diffraction maximum and standard card (28-
0417) basically identical, it is Na with (◆)3MoO4Diffraction maximum consistent with standard card (28-1113), carryFor
The diffraction maximum of NaTbO2 is consistent with standard card (40-0931).Show most Eu3+With Tb3+Instead of the Y in substrate3+Enter
Enter lattice, define with tetragonal crystal system NaY (MoO4)2Based on Eu2MoO12、Na3MoO4Mixture.
If Fig. 2 is the SEM photograph under sample different amplification, a kind of is octahedron, and each edge length is about 2.1 μm,
Also have the uneven small particles of a large amount of sizes.The growth of sample and forming process are to be formed by surfactant auxiliary.We
Octahedra NaY (the MoO of preparation4)2：Eu3+, Tb3+When, control the formation of sample topography with L-Glutamic Acid.Glutamic acid is acid amino
Acid, can control reaction solution pH=6～7, and the dissociation of therefore alkaline group is inhibited, and electric charge is arranged in the alkali of aminoacid
Side ,-COOH is mainly with-COO-Presented in solution.Negatively charged L-Glutamic Acid has high efficiency to give the energy of electronics
Power, and the L-Glutamic Acid of deprotonation can selectively be gathered in Na+And Y3+On the high crystal face of bulk density, this have choosing
Assembling with selecting makes Na+And Y3+The high crystal face growth of bulk density is suppressed, and the speed of growth of therefore other crystal faces obtains relatively carrying
Height, therefore sample define octahedral structure.
Fig. 3 is sample NaY (MoO4)2：Eu3+In λemExcitation spectrum under=613nm Detection wavelength, 200-350nm's
Wide absorption band is MoO in substrate4 2-In Mo-O charge transfer band, as can be seen from the figure Eu3+F-f transition be 360nm after
Sharp peak 388nm at and 459nm at excitation peak.Show sample NaY (MoO4)2：Eu3+In there is MoO4 2-To Eu3+Energy
Amount transmission.
Fig. 4 is sample NaY (MoO4)2：Tb3+In λemIn excitation spectrum under=544nm Detection wavelength, in 200-350nm
Wide absorption band be substrate in MoO4 2-In Mo-O charge transfer band, show sample NaY (MoO4)2：Tb3+In exist
MoO4 2-To Tb3+Energy transmission.
Fig. 5 is sample NaY (MoO4)2：Eu3+, Tb3+In λemExcitation spectrum under=613nm Detection wavelength, in 200-
The wide absorption band of 350nm is MoO in substrate4 2-In Mo-O charge transfer band, in figure there is also Eu3+F-f transition be
Excitation peak at sharp peak 388nm after 360nm and at 459nm.Show sample NaY (MoO4)2：Eu3+, Tb3+In both existed
MoO4 2-To Eu3+Energy transmission, there is MoO again4 2-To Tb3+Energy transmission.
Fig. 6 is sample in λexMeasured launching light spectrogram under=277nm excitation wavelength.As can be seen from the figure exist
At 537nm, 556nm, 590nm, 613nm, 651nm, peak correspond to Eu respectively3+Emission peak5D1-7F1,5D0-7F0,5D0-7F1,5D0-7F2,5D0-7F3Transmitting.Wherein main emission peak belongs to Eu for 613nm (HONGGUANG) place3+Electric dipole transition5D0-7F2, 590nm
(orange light) place belongs to Eu3+Magnetic dipole transition5D0-7F1, and electric dipole transition5D0-7F2With magnetic dipole transition5D0-7F1Transmitting
Intensity ratio is about 5: 1, and Eu is described3+Occupy the position of non-inversion center of symmetry.
Fig. 7 is sample NaY (MoO4)2：Tb3+In λexMeasured launching light spectrogram under=277nm excitation wavelength, can from figure
To find out 489nm, a few place of 544nm, 584nm, 618nm peak correspond to Tb respectively3+Emission peak5D4-7F6,5D4-7F5,5D4-7F4
With5D4-7F3Transmitting, wherein5D4-7F5Green emission is Tb3+Main emission peak, same to NaY (MoO4)2：Eu3+Fluorescent material is the same,
NaY(MoO4)2：Tb3+MoO is there is also in fluorescent material4 2-To Tb3+Energy transmission.
Fig. 8 is NaY (MoO4)2：Eu, Tb3+In λexMeasured launching light spectrogram under=277nm excitation wavelength, from figure
It can be seen that 590nm, at 613nm, 651nm, peak correspond to Eu respectively3+Emission peak5D0-7F1、5D0-7F2,5D0-7F3Transmitting, its
Middle main emission peak belongs to Eu for 613nm (HONGGUANG) place3+Electric dipole transition5D0-7F2., at 489nm, 544nm, peak correspond to respectively
Tb3+Emission peak5D4-7F6,5D4-7F5Transmitting, wherein5D4-7F5Green emission is Tb3+Main emission peak, this demonstrate NaY
(MoO4)2：Eu3+, Tb3+There is MoO in fluorescent material simultaneously4 2-To Eu3+And Tb3+Energy transmission.
Synthesize Eu further3+/Tb3+Doping content difference [(a) 4%Eu3+；(b) 4%Eu3+, 1%Tb3+(c) 4%Eu3 +, 2%Tb3+；(d) 4%Eu3+, 3%Tb3+；(e) 4%Eu3+, 4%Tb3+；(f) 4%Tb3+；] a series of fluorescent material.Fig. 9 is
When excitation wavelength is 277nm, different Eu3+, Tb3+NaY (the MoO of synthesis under doping content4)2The launching light spectrogram of fluorescent material, figure
In there is no MoO4 2-Emission peak, and there is the characteristic emission peak of Eu and Tb, MoO be described4 2-Energy is delivered successfully respectively to
Eu3+And Tb3+Each part.In sample NaY (MoO4)2：Eu3+In only HONGGUANG and orange light transmitting, with Tb3+The increasing of concentration
Greatly, Eu3+590nm (5D0-7F1) and 613nm (5D0-7F2) emission peak and Tb3+489nm (5D4-7F6) and 544nm (5D4-7F5)
Emission peak exists jointly, works as Eu3+/Tb3+Co-doped NaY (MoO4)2Molar ratio be 4/3 when, burst of ultraviolel in sample
Under monochromatic cool white light.
Figure 10 is sample NaY (MoO4)2：X%Eu3+, y%Tb3+The chromaticity coordinates of the fluorescent material of (x=4, y=0,1,2,3,4)
Figure, the chromaticity coordinates of fluorescent material (a-F) is respectively：
(a) x=0.558, y=0.434；(b) x=0.475, y=0.380；(c) x=0.436, y=0.379；(d) x=
0.313, y=0.344；(e) x=0.334, y=0.401；(f) x=0.558, y=0.436.It can be seen that (a) is right
The color answered is orange light；B () corresponding color is gold-tinted；C () corresponding color is gold-tinted, (d) corresponding color is cool white light；
E () corresponding color is green-yellow light；F () corresponding color is green glow.Showing that double-component is co-doped with molybdate can with ratio difference
To obtain different luminous products.The color of sample has Modulatory character, shows sample in visible region.Under single excitation wavelength
The fluorescent material of different glow colors can be obtained, the adjustability characteristic of this glow color can have been given play to huge in color display
Effect.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (2)
1. a kind of NaY (MoO4)2：Eu3+, Tb3+The preparation method of series phosphor powder is it is characterised in that comprise the steps：
S1, take a certain amount of Yttrium trinitrate, europium nitrate, Terbium nitrate (Tb(NO3)3) to be separately added into deionized water constant volume, join the nitre of 0.1mol/L respectively
The Terbium nitrate (Tb(NO3)3) solution 50mL of sour yttrium solution 50mL, europium nitrate solution 50mL and 0.05mol/L of 0.05mol/L, standby；
S2, measure the Y (NO that the 0.1mol/L of 9.3mL prepares respectively3)3The Eu that solution, the 0.05mol/L of 0.8mL prepare
(NO3)3Tb (the NO that the 0.05mol/L of solution and 0.6mL prepares3)3Solution, Y in molar ratio3+∶Eu3+∶Tb3+Mix at=93: 4: 3
Together in the conical flask of 50mL, add 0.3030g L-Glutamic Acid, magnetic agitation 40min at room temperature, obtain solution A；
S3, in molar ratio n (RE3+)∶n(Mo6+The ratio of)=1: 1 weighs the Na of 0.4984g2MoO4It is dissolved in a certain amount of deionization
In water, obtain solution B；
S4, solution B is added dropwise in solution A, now pH value of solution=6, after magnetic agitation 60min under room temperature, moves into 50mL
In reactor, react 12h under 170 DEG C of hydrothermal condition, washing, centrifugation, to burn at a temperature of 600 DEG C in Muffle furnace
6h, obtains final product fluorescent material.
2. a kind of NaY (MoO as claimed in claim 14)2：Eu3+, Tb3+The preparation method of series phosphor powder it is characterised in that
Gained fluorescent material is monochromatic cool white light transmitting under burst of ultraviolel.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978180A (en) * | 2017-04-01 | 2017-07-25 | 南阳理工学院 | A kind of preparation method of photoelectric semiconductor material |
| CN107163941A (en) * | 2017-07-06 | 2017-09-15 | 重庆文理学院 | A kind of alkaline-earth metal tungsten molybdate red phosphor and preparation method thereof |
| CN109266347A (en) * | 2018-11-23 | 2019-01-25 | 陕西科技大学 | It is a kind of can be by red fluorescence powder and preparation method thereof that blue chip effectively excites |
| CN112646578A (en) * | 2020-12-25 | 2021-04-13 | 成都理工大学 | Dy (Dy)3+Doping with Na5Y(MoO4)4Warm white fluorescent powder and preparation method thereof |
| CN117143601A (en) * | 2023-08-16 | 2023-12-01 | 东台市天源光电科技有限公司 | Color-adjustable nanoscale rare earth anti-counterfeiting phosphor and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101588010A (en) * | 2008-05-22 | 2009-11-25 | 中国科学院福建物质结构研究所 | Molybdate laser crystal doped with erbium ions, ytterbium ions and cerium ions and application thereof |
| US20130098438A1 (en) * | 2010-06-11 | 2013-04-25 | Asahi Glass Company, Limited | Translucent laminated film and solar cell module using it |
| CN105038791A (en) * | 2015-06-23 | 2015-11-11 | 西安建筑科技大学 | Preparation method of spherical red phosphor powder capable of being excited by ultraviolet-blue light |
-
2016
- 2016-08-20 CN CN201610735190.0A patent/CN106381145A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101588010A (en) * | 2008-05-22 | 2009-11-25 | 中国科学院福建物质结构研究所 | Molybdate laser crystal doped with erbium ions, ytterbium ions and cerium ions and application thereof |
| US20130098438A1 (en) * | 2010-06-11 | 2013-04-25 | Asahi Glass Company, Limited | Translucent laminated film and solar cell module using it |
| CN105038791A (en) * | 2015-06-23 | 2015-11-11 | 西安建筑科技大学 | Preparation method of spherical red phosphor powder capable of being excited by ultraviolet-blue light |
Non-Patent Citations (2)
| Title |
|---|
| YINGYING JIANG等: "Surfactant-assisted hydrothermal synthesis of octahedral structured NaGd(MoO4)2:Eu3+/Tb3+ and tunable photoluminescent properties", 《OPTICAL MATERIALS》 * |
| ZHENHE XU等: "Self-Assembled 3D Urchin-Like NaY(MoO4)2:Eu3+/Tb3+ Microarchitectures: Hydrothermal Synthesis and Tunable Emission Colors", 《J.PHYS.CHEM.C》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978180A (en) * | 2017-04-01 | 2017-07-25 | 南阳理工学院 | A kind of preparation method of photoelectric semiconductor material |
| CN107163941A (en) * | 2017-07-06 | 2017-09-15 | 重庆文理学院 | A kind of alkaline-earth metal tungsten molybdate red phosphor and preparation method thereof |
| CN109266347A (en) * | 2018-11-23 | 2019-01-25 | 陕西科技大学 | It is a kind of can be by red fluorescence powder and preparation method thereof that blue chip effectively excites |
| CN112646578A (en) * | 2020-12-25 | 2021-04-13 | 成都理工大学 | Dy (Dy)3+Doping with Na5Y(MoO4)4Warm white fluorescent powder and preparation method thereof |
| CN112646578B (en) * | 2020-12-25 | 2022-07-08 | 成都理工大学 | A kind of Dy3+ doped Na5Y(MoO4)4 warm white fluorescent powder and preparation method thereof |
| CN117143601A (en) * | 2023-08-16 | 2023-12-01 | 东台市天源光电科技有限公司 | Color-adjustable nanoscale rare earth anti-counterfeiting phosphor and preparation method thereof |
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