CN1594498A - Yttrium gallate based trichromatic fluorescent material and method for making same - Google Patents
Yttrium gallate based trichromatic fluorescent material and method for making same Download PDFInfo
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- CN1594498A CN1594498A CN 200410025792 CN200410025792A CN1594498A CN 1594498 A CN1594498 A CN 1594498A CN 200410025792 CN200410025792 CN 200410025792 CN 200410025792 A CN200410025792 A CN 200410025792A CN 1594498 A CN1594498 A CN 1594498A
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- gallic acid
- acid yttrium
- fluorescent material
- yttrium base
- fluorescence
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Abstract
The invention discloses an yttrium gallate based trichromatic fluorescent material and method for making same by using yttrium oxide (Y2O3), gallium oxide (Ga2O3), europium oxide (Eu2O3), terbium oxide (Tb4O7), and bismuth oxide (Bi2O3) as raw material through solid-phase sintering method, the synthesized material has the chemical formula of Y#-[3(1-x)]M#-[3x]Ga#-[5]O#-[12], wherein M is Eu or Tb or Bi (x=0.001-0.20).
Description
Technical field
The present invention relates to a kind of gallic acid yttrium base three fluorescence material and preparation method thereof, belong to the fluorescent material field.
Background technology
Fluorescent material is mainly used in technical fields such as illumination and display device, and wherein sulfide and oxide compound (comprising oxysalt) are the two big class materials that are most widely used.In the last few years in field of display, various flat pannel display (Flat Panel Display, FPD) technology obtains flourish, but sulfide luminescent material in the technique of display of electroluminescent demonstration (ELD), Field Emission Display (FED) and vacuum fluorescence demonstration active illuminating types such as (VFD), such as ZnS:Cu, Al, ZnS:Ag, Cl, GdOS:Tb, SrGa
2S
4: Eu etc. are also using at present widely, but sulfide material poor chemical stability, to decompose the infringement cause components and parts be to need a problem solving for a long time to sulfide under electron-bombardment, and it has water vapor sensitive, behind the life-time service under the luminous efficiency degradation shortcoming not only the manufacturing process of device is had higher requirement, and influence the permanent stability of device.These shortcomings are that sulfide intrinsic chemical property causes, and are difficult to improve by research.Chemical stability is good, material category is many and the metal oxide luminescent material has, and obtains advantages such as three primary colours easily, becomes the splendid candidate who replaces sulfide material, is one of research focus in this field in the world in recent years.At lighting field, with the metal oxide fluorescent RE powder of matrix owing to have under narrowband emission, short ultraviolet (185nm) radiation that advantages such as luminous intensity is stable have obtained good application under good stability, the high temperature in many novel florescent lamps, as three-color fluorescent lamp, compact fluorescent lamp, high color rendering index (CRI) lamp and some high-quality special lamps of using.Therefore development research is that the phosphor material powder of matrix can play very big promoter action for the development of flat pannel display and lighting engineering with the novel metal oxide.
The a collection of in the last few years novel metal oxide fluorescent material that has very much application prospect obtains research and development in succession, as ZnGa
2O
4, ZnGa
2O
4: Mn, SrTiO
3: Pr etc., but these materials are compared gap in addition with the sulfide material that tradition is used aspect luminescent properties, still can not perfect marketizations, and further explore the novel metal oxide luminescent material and seem and be necessary very much.Gallic acid yttrium (Y
3Ga
5O
12) have an A
3B
5O
12The garnet structure of type has chemical stability with Heat stability is good, compare characteristics such as synthesis temperature is lower with other metal oxide fluorescent materials, up to the present also is not the research report of matrix fluorescent material with the gallic acid yttrium.
Summary of the invention
The objective of the invention is synthetic a kind of be the metal oxide fluorescent material of matrix with the gallic acid yttrium, for the set lights under the different application environment and display device provide a class new fluorescent material.
The prescription of gallic acid yttrium base fluorescent material is as follows: with Y
2O
3(analytical pure), Ga
2O
3(analytical pure) is main component, respectively with Eu
2O
3(analytical pure) or Tb
4O
7(analytical pure) or Bi
2O
3(analytical pure) is doping agent: according to chemical formula Y
3 (1-x)M
3xGa
5O
12Mix, M is Eu or Tb or Bi, and the variation range of x can from 0.001 to 0.2.
The preparation method is as follows: raw material, was calcined 2-4 hour down at 1000-1200 ℃, again through cooling off, grind, sieve the gallic acid yttrium base fluorescent material that can obtain different glow colors after 1-5 hour with the planetary ball mill batch mixing.
The chemical formula of the gallic acid yttrium base fluorescent material of preparation gained is Y
3 (1-x)M
3xGa
5O
12, M is Eu or Tb or Bi, the variation range of x can from 0.001 to 0.2.
The gallic acid yttrium series luminescent material synthesis temperature of the present invention's preparation is low, do not need fusing assistant, technology is simple, a calcination forms, can on same matrix, realize the red, green, blue three-color light-emitting, therefore luminous intensity has a good application prospect with the main aluminate serial fluorescent material of using is suitable at present.
This class material has advantages such as luminous intensity height, stable chemical performance, synthesis temperature be low, can be used as set lights and display device fluorescent material.
Description of drawings
Fig. 1 is gallic acid yttrium rouge and powder material Y
2.85Eu
0.15Ga
5O
12Emmission spectrum under the 254nm ultraviolet excitation.
Fig. 2 is the green powder material Y of gallic acid yttrium
2.85Tb
0.15Ga
5O
12Emmission spectrum under the 254nm ultraviolet excitation.
Fig. 3 is gallic acid yttrium blue powder material Y
2.85Bi
0.15Ga
5O
12Emmission spectrum under the 254nm ultraviolet excitation.
Embodiment
Gallic acid yttrium rouge and powder material: press chemical formula Y
2.85Eu
0.15Ga
5O
12Prepare burden, take by weighing Y
2O
3(analytical pure) 6.44 grams; Ga
2O
3(analytical pure) 9.37 grams; Eu
2O
3(analytical pure) 0.53 gram.Their with planetary ball mill batch mixing after 3 hours, 1100 ℃ of following sintering 4 hours, again by cooling off, grind, sieving, just can be obtained gallic acid yttrium base red fluorescent powder, and under the 254nm ultraviolet excitation, the main glow peak of this fluorescent material is at 593nm and 612nm.
Embodiment 2.
The green powder material of gallic acid yttrium: press chemical formula Y
2.85Tb
0.15Ga
5O
12Prepare burden, take by weighing Y
2O
3(analytical pure) 6.44 grams; Ga
2O
3(analytical pure) 9.37 grams; Tb
4O
7(analytical pure) 0.67 gram.Their with planetary ball mill batch mixing after 3 hours, 1100 ℃ of following sintering 4 hours, again through cooling off, grind, sieving, just can be obtained gallic acid yttrium base green emitting phosphor, and under the 254nm ultraviolet excitation, the main glow peak of this fluorescent material is at 543nm.
Embodiment 3.
Gallic acid yttrium blue powder material: press chemical formula Y
2.85Bi
0.15Ga
5O
12Prepare burden, take by weighing Y
2O
3(analytical pure) 6.44 grams; Ga
2O
3(analytical pure) 9.37 grams; Bi
2O
3(analytical pure) 0.70 gram.Their with planetary ball mill batch mixing after 3 hours, 1100 ℃ of following sintering 4 hours, again through cooling off, grind, sieving, just can be obtained gallic acid yttrium base blue colour fluorescent powder, and under the 254nm ultraviolet excitation, the main glow peak of this fluorescent material is at 454nm.
Claims (6)
1, a kind of gallic acid yttrium base three fluorescence material, the chemical formula that it is characterized in that this material is Y
3 (1-x)M
3xGa
5O
12, M is Eu or Tb or Bi, the variation range of x can from 0.001 to 0.2.
2, by the described a kind of gallic acid yttrium base three fluorescence preparation methods of claim 1, comprise the steps:
(1) with Y
2O
3, Ga
2O
3Be main component, respectively with Eu
2O
3Or Tb
4O
7Or Bi
2O
3Be doping agent, according to chemical formula Y
3 (1-x)M
3xGa
5O
12Prepare burden, M is Eu or Tb or Bi, the variation range of x from 0.001 to 0.2;
(2) batching after raw material through batch mixing, calcining, cooling, grinding, sieving to obtain gallic acid yttrium base fluorescent material.
3, by the described a kind of gallic acid yttrium base three fluorescence preparation methods of claim 1, it is characterized in that mixing time is 1-5 hour.
4,, it is characterized in that calcination condition is 1000-1200 ℃ and calcined 2-4 hour down by the described a kind of gallic acid yttrium base three fluorescence preparation methods of claim 1.
5, by claim 2 or 3 or 4 described a kind of gallic acid yttrium base three fluorescence preparation methods, it is characterized in that used raw material is more than the analytical pure level.
6, be used as set lights and display device fluorescent material by the described a kind of gallic acid yttrium base three fluorescence material of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100257924A CN100336885C (en) | 2004-07-06 | 2004-07-06 | Yttrium gallate based trichromatic fluorescent material and method for making same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100257924A CN100336885C (en) | 2004-07-06 | 2004-07-06 | Yttrium gallate based trichromatic fluorescent material and method for making same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1594498A true CN1594498A (en) | 2005-03-16 |
| CN100336885C CN100336885C (en) | 2007-09-12 |
Family
ID=34663855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100257924A Expired - Fee Related CN100336885C (en) | 2004-07-06 | 2004-07-06 | Yttrium gallate based trichromatic fluorescent material and method for making same |
Country Status (1)
| Country | Link |
|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100519694C (en) * | 2005-06-29 | 2009-07-29 | 北京大学 | Y3(Al, ga)5O12rare earth fluorescent powder |
| CN109868507A (en) * | 2017-12-05 | 2019-06-11 | 长春理工大学 | A kind of New Type Magneto crystal Tb2YGa5O12(TYGG) preparation method |
| CN113755172A (en) * | 2021-10-26 | 2021-12-07 | 长江大学 | Fluorescent powder and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08170077A (en) * | 1994-12-19 | 1996-07-02 | Hitachi Ltd | Fluorescent substance, its production, luminescent screen and cathode ray tube using the fluophor |
| JP3879298B2 (en) * | 1999-01-22 | 2007-02-07 | 双葉電子工業株式会社 | Field emission display |
-
2004
- 2004-07-06 CN CNB2004100257924A patent/CN100336885C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100519694C (en) * | 2005-06-29 | 2009-07-29 | 北京大学 | Y3(Al, ga)5O12rare earth fluorescent powder |
| CN109868507A (en) * | 2017-12-05 | 2019-06-11 | 长春理工大学 | A kind of New Type Magneto crystal Tb2YGa5O12(TYGG) preparation method |
| CN113755172A (en) * | 2021-10-26 | 2021-12-07 | 长江大学 | Fluorescent powder and preparation method thereof |
| CN113755172B (en) * | 2021-10-26 | 2023-11-14 | 长江大学 | Fluorescent powder and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100336885C (en) | 2007-09-12 |
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Granted publication date: 20070912 Termination date: 20110706 |