CN102585815B - Orange-red long path persistence luminescent material and preparation method thereof - Google Patents
Orange-red long path persistence luminescent material and preparation method thereof Download PDFInfo
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Abstract
The invention relates to an orange-red long path persistence luminescent material and a preparation method thereof. The luminescent material has a chemical characteristic of BaZrO3:Eux, Tiy, wherein x and y are the molar ratio coefficients of the corresponding dopantions relative to BaZrO3, wherein 0.005<=x<=0.045, and 0<y<=0.05. The preparation method comprises high-temperature solid phase method in the air. The orange-red long path persistence luminescent material is prepared by weighing raw materials according to a stoichiometric proportion, ball milling, mixing, drying, preburning in the air, grinding, carrying out high-temperature calcination in the air, grinding into powder, and other steps. A sample emits orange-red persistence light after ultraviolet light excitation, and through emission spectroscopic measurement, the main emission peak is near 594nm; and after the ultraviolet exciting light is removed, the sample has distinct orange-red long path persistence characteristic, and the persistence light is visible. The orange-red long path persistence luminescent material provided by the invention has the advantages of good chemical stability, no radioactivity, high brightness, good monochromaticity, long time of persistence, simple preparation method and no need of atmosphere protection, and is suitable for large-scale production.
Description
Technical field
The present invention relates to a kind of high brightness high monochromaticity orange-red long afterglow Luminescent Material, the invention still further relates to the preparation method of above-mentioned luminescent material.
Technical background
Long after glow luminous material is a kind of photo-induced energy storage material, there is energy-conservation, the feature such as can be recycled, be widely used in the fields such as emergent indication, low light level illumination, industrial art and building decoration, energetic ray detection, information storage and display equipment, laser equipment.The long-afterglow material of existing visible region is mainly divided into red colour system, yellowish green colour system and blue series, wherein the luminescent properties of yellow-green colour and blue long afterflow material has reached the needs of practical application and has realized industrialization, and these materials are mainly rare earth doped aluminate and silicate.And that the research and development of red long afterglow material make progress is relatively slow, commercial red colour system long-afterglow material mostly is sulfide system at present, although the luminescent material luminosity of this system and persistence length can reach service requirements reluctantly, but its poor chemical stability, easy deliquescence in air, and production process is complicated, and the waste environmental pollution producing in building-up process is serious.
Chinese invention patent 200410017538.X discloses < < La
2o
2this patent application of S red long afterglow luminous material and preparation method thereof > >.The luminescent material that this patented technology is set forth is with La
2o
3for matrix, La
2o
3with S be base starting material, Eu
3+for activator, Mg
2+, Zr
4+, Ti
4+, Nb
5+for coactivator, sodium carbonate and Quilonum Retard are fusing assistant.Its preparation method must complete under reducing environment, and preparation process complicated and time consumption.After being excited according to the standby material of patent system, naked eyes can observe red or orange red.Although the long afterglow property of this material is better, but there is apparent deficiency in product and preparation method, such as providing reductibility environment to make to prepare, the cost of this kind of material is higher, and sulphur raw material certainly will cause environmental pollution, mixes altogether the price that multiple expensive material certainly will be raised product.Therefore, searching and synthesising property are stable, afterglow property is good, cost is low, the research of eco-friendly red colour system long after glow luminous material, especially orange-red long afterglow Luminescent Material is a focus always.
Summary of the invention
The present invention proposes in view of the above problems, has solved above-mentioned various problems in the past, realizes object below.That is, the orange-red long afterglow Luminescent Material that the object of the present invention is to provide a kind of high brightness, high monochromaticity, chemical stability is good and time of persistence is long, and preparation method environmentally friendly, the simple orange-red long afterglow Luminescent Material of preparation process is provided.
As for solving the means of above-mentioned problem, as follows.That is,
The invention provides a kind of orange-red long afterglow Luminescent Material, its feature chemical formula is: BaZrO
3: Eu
x, TI
y, in formula, 0.005≤x≤0.045,0 < y≤0.05, wherein, and x, y is that corresponding dopant ion is with respect to BaZrO
3mol ratio coefficient.
In above formula, preferably x is 0.025 ± 0.005; Y is preferably more than 0.005, and more preferably 0.015 ± 0.002, the upper limit of y preferably 0.045.
Orange-red long afterglow Luminescent Material of the present invention is with BaZrO
3for matrix, Eu
3+for activator, appropriate doped Ti O
2.Thereby than the TiO that undopes
2situation compare, its luminosity is high, monochromaticity good, time of persistence is long.
The luminosity of above-mentioned orange red luminescent material is BaZrO
3: 5～9 times of Eu, radiative monochromaticity compares BaZrO
3: Eu is good, is generally 250～460 seconds time of persistence, preferably 400～460 seconds.The present invention also provides a kind of preparation method of orange red luminescent material, comprises the following steps:
(1) by element chemistry, measure than the oxide/carbonate raw material that takes respective element,
(2) in the raw material weighing up, add dispersion agent, the preferred dehydrated alcohol of dispersion agent, then grinds,
(3) by the raw material drying mixing after grinding,
(4) dry raw material is carried out to pre-burning,
(5) take out the sample after pre-burning, calcining after grinding, to obtain described orange-red long afterglow Luminescent Material.
In addition, what in preferred steps (1), raw materials used Ba adopted is its carbonate, and what Zr, Eu and Ti adopted respectively is their oxide compound.
The preferred time of grinding in step (2) is 20～40h, more preferably 24h.Described grinding is preferably ball milling.
In step (4), preferred dried raw material is placed in crucible, and under the atmospheric environment of 700～900 ℃, pre-burning 3～8h, naturally cools to room temperature with stove.Pre-burning 4h. under the atmospheric environment of 850 ℃ more preferably
In step (5), preferably the sample by pre-burning and after grinding packs crucible into, is warming up to 1250～1550 ℃ in air atmosphere, and calcining 4～8h, naturally cools to room temperature with stove.More preferably in air atmosphere, be warming up to 1400 ℃, calcining 5h, naturally cools to room temperature with stove.
In the preferred preparation method of the present invention, adopt pre-burning and two stages of calcining, dried raw material is placed in crucible, pre-burning 3～8h under the air ambient of 700～900 ℃.Sample after pre-burning is ground packs crucible into, is warming up to 1250～1550 ℃ in air atmosphere, and calcining 4～8h, naturally cools to room temperature with stove.Adopt the degree of crystallinity and the purity that contribute in this way to improve material.
In addition, in the time of can also grinding before pre-burning in preparation method of the present invention, in raw material, add with respect to substrate material BaZrO
3mol ratio coefficient is 0.05～0.15 boron oxide compound (B
2o
3) or its acid (H
3bO
3) as fusing assistant.
Preferably boron oxide compound or its acid are with respect to substrate material BaZrO
3mol ratio coefficient is 0.10 ± 0.02.
Fusing assistant boron oxide compound (B
2o
3) or its acid (H
3bO
3) add and reduced crystalline phase nucleation temperature of reaction and grain growing reaction energy barrier, thereby accelerate surface reaction speed, and fusing assistant boron oxide compound (B
2o
3) or its acid (H
3bO
3) add the degree of depth and the density that have very likely increased electronic defects trap level, so fusing assistant add the luminescent properties that not only contributes to sintering but also can improve material.
The present invention also provides a kind of BaZrO that is mixed with fusing assistant (oxide compound of boric acid or boron)
3: Eu
x, Ti
y, 0.015≤x≤0.045 in formula, 0 < y≤0.05, wherein, and x, y is that corresponding dopant ion is with respect to BaZrO
3mol ratio coefficient.
The above-mentioned BaZrO that is mixed with fusing assistant (oxide compound of boric acid or boron)
3: Eu
x, Ti
ythe initial luminosity of luminescent material is BaZrO
3: 9～11 times of Eu, be 300～630 seconds time of persistence, preferably 500～630 seconds, more preferably about 600 seconds.
In addition, with the described BaZrO of the fusing assistant that undopes
3: Eu
x, Ti
yand BaZrO
3: Eu compares, and is mixed with the BaZrO of fusing assistant
3: Eu
x, Ti
ythe radiative monochromaticity of luminescent material is good, and initial luminosity is high.
Orange-red long afterglow Luminescent Material of the present invention adopts high temperature solid-state method synthetic, and transmitting main peak is positioned near 594nm, and brightness is high, and time of persistence is longer, and has better monochromaticity, fusing assistant H
3bO
3(or B
2o
3) add and allow material of the present invention there is higher initial brightness.
The substrate material of orange-red long afterglow Luminescent Material of the present invention is selected is the BaZrO of stable chemical nature, high temperature resistant, high pure phase
3, between this matrix and Eu and Ti ion, have very high energy transfer efficiency.Mixing altogether of adopting also has very high energy transfer efficiency between ion Eu and Ti.Above factor is all conducive to stimulated luminescence, makes luminescent material after mixing altogether can send brightness high, and monochromaticity is good, the orange-red light that obviously extend time of persistence.Orange-red long afterglow Luminescent Material of the present invention, not containing radioelement, does not almost pollute environment.And preparation method of the present invention is simple, the atmosphere that do not need protection, is applicable to large-scale commercial production.
Orange-red long afterglow Luminescent Material of the present invention has very large potential using value in fields such as some display equipments and laser equipments.Suitable codoped boron oxide compound (B also
2o
3) or its acid (H
3bO
3) as fusing assistant, further improve the initial luminosity of this material.
Accompanying drawing explanation
Fig. 1 is the XRD figure spectrum of long-afterglow luminescent powder of the present invention.
(a): BaZrO
3: Eu
0.025; (b): BaZrO
3: Eu
0.025, Ti
0.005; (c): BaZrO
3: Eu
0.025, Ti
0.015; (d): BaZrO
3: Eu
0.025, Ti
0.045; (f): BaZrO
3: Eu
0.025, Ti
0.015; Wherein (a), (b), (c) and (d) calcining temperature of four samples be all 1400 ℃, (f) calcining temperature of sample is 1550 ℃.
Fig. 2 is the emmission spectrum of long-afterglow luminescent powder of the present invention (calcining temperature is 1400 ℃).
(a)：BaZrO
3:Eu
0.025；(b)：BaZrO
3:Eu
0.025，Ti
0.005；(c)：BaZrO
3:Eu
0.025，Ti
0.015；(d)：BaZrO
3:Eu
0.025，Ti
0.045.
Fig. 3 is the long-afterglow luminescent powder (BaZrO making under the different calcining temperatures of the present invention
3: Eu
0.025, Ti
0.005) emmission spectrum.(a): calcining temperature is 1400 ℃; (f): calcining temperature is 1550 ℃.
Fig. 4 is the typical decay of afterglow curve of long-afterglow luminescent powder of the present invention.Wherein
(a)：BaZrO
3:Eu
0.025；(b)：BaZrO
3:Eu
0.025，Ti
0.015；
Fig. 5 is the XRD figure spectrum of long-afterglow luminescent powder of the present invention.(a): BaZrO wherein
3: Eu
0.025; (b): BaZrO
3: Eu
0.025, Ti
0.015; (c): in preparation, add H
3bO
3baZrO for fusing assistant
3: Eu
0.025, Ti
0.015.
Fig. 6 is the emmission spectrum of long-afterglow luminescent powder of the present invention.(a): BaZrO wherein
3: Eu
0.025; (b): BaZrO
3: Eu
0.025, Ti
0.015; (c): in preparation, added H
3bO
3baZrO for fusing assistant
3: Eu
0.025, Ti
0.015.
Fig. 7 is the decay of afterglow curve of long-afterglow luminescent powder of the present invention.Wherein
(a): BaZrO
3: Eu
0.025; (b): BaZrO
3: Eu
0.025, Ti
0.015; (c): in preparation, added H
3bO
3baZrO for fusing assistant
3: Eu
0.025, Ti
0.015.
Embodiment
Embodiment
Comparative example 1. raw materials are BaCO
3(commercially available, analytical pure), ZrO
2(commercially available, analytical pure) and Eu
2o
3(commercially available, 99.99wt%) mol ratio between them should be mutually: 0.04: 0.04: 0.0125.To be placed in ball milling bottle by the load weighted raw material of stoichiometric ratio, add appropriate dehydrated alcohol, on ball mill, fully grind more than 24 hours; By the good raw material of ball milling be placed in baking oven dry after, in agate mortar, grind, then raw material is placed in to resistance furnace pre-burning, in air atmosphere, 850 ℃ of insulation 4h, cool to room temperature with the furnace; Sample after pre-burning grinds in agate mortar again, then sample is packed in crucible, is placed in High Temperature Furnaces Heating Apparatus and calcines, and in air atmosphere, 1400 ℃ of insulation 5h, cool to room temperature with the furnace; After grinding, can obtain white powder product B aZrO
3: Eu
0.025.Through X ray, identify, as shown in (a) in Fig. 1 and Fig. 5, diffraction peak data and the BaZrO of gained sample
3the diffraction data of JCPDS standard card (06-399) consistent.Illustrate that gained sample is BaZrO
3pure phase, crystalline structure and BaZrO
3identical, belong to Emission in Cubic.Gained sample sends orange red long-persistence luminous after 260nm optical excitation, and emmission spectrum, as (a) in Fig. 2 shows: emmission spectrum has two peak values that intensity is suitable, respectively near 574n and near 5594nm.A little less than this sample luminosity, and the difference of main peak value and other peak value size is little, and the monochromaticity of sample is bad.The decay of afterglow curve of this luminescent material, as (a) in Fig. 4, can find out that the time of persistence of this sample is shorter
Embodiment 2. raw materials are BaCO
3(commercially available, analytical pure), ZrO
2(commercially available, analytical pure), Eu
2o
3(commercially available, 99.99wt%) and TiO
2(commercially available, 99.99wt%) mol ratio between them should be mutually: 0.04: 0.04: 0.0125: 0.015.Adopt identical preparation method and the preparation flow of comparative example 1, finally can obtain white powder product B aZrO
3: Eu
0.025, Ti
0.015.As shown in (b) in (c) and Fig. 4 in Fig. 1, diffraction peak data and the BaZrO of gained sample
3the diffraction data of JCPDS standard card (06-399) consistent.Illustrate that gained sample is BaZrO
3pure phase, crystalline structure and BaZrO
3identical, belong to Emission in Cubic.Gained sample sends macroscopic orange red steady persistence after 260nm optical excitation, and emmission spectrum, as (c) in Fig. 2, can find out that the main peak value of emmission spectrum of this material is near 594nm.This luminescent material brightness is high and monochromaticity good.The decay of afterglow curve of this luminescent material, as (b) in Fig. 3, can find out that by this figure obviously extend time of persistence and decay of afterglow is exponential law.
Embodiment 3. raw materials are BaCO
3(commercially available, analytical pure), ZrO
2(commercially available, analytical pure), Eu
2o
3(commercially available, 99.99wt%) and TiO
2(commercially available, 99.99wt%) mol ratio between them should be mutually: 0.04: 0.04: 0.0125: 0.045.Adopt identical preparation method and the preparation flow of comparative example 1, finally can obtain white powder product B aZrO
3: Eu
0.025, Ti
0.045.As shown in (d) in Fig. 1, diffraction peak data and the BaZrO of gained sample
3the diffraction data of JCPDS standard card (06-399) consistent.Illustrate that gained sample is BaZrO
3pure phase, crystalline structure and BaZrO
3identical, belong to Emission in Cubic.Gained sample sends macroscopic orange red steady persistence after 260nm optical excitation, and emmission spectrum, as (d) in Fig. 2, can find out that the main peak value of emmission spectrum of this material is near 594nm.This luminescent material brightness is high and monochromaticity good.The time of persistence of this luminescent material grows and decay of afterglow is exponential law.
Embodiment 4. raw materials are BaCO
3(commercially available, analytical pure), ZrO
2(commercially available, analytical pure), Eu
2o
3(commercially available, 99.99wt%) and TiO
2(commercially available, 99.99wt%) mol ratio between them should be mutually: 0.04: 0.04: 0.0125: 0.015.Adopt identical preparation method and the preparation flow of embodiment 1, but calcining temperature changes to 1550 ℃, other parameter constants, finally can obtain white powder product B aZrO
3: Eu
0.025, Ti
0.015.As shown in (f) in Fig. 1, diffraction peak data and the BaZrO of gained sample
3the diffraction data of JCPDS standard card (06-399) consistent.Illustrate that gained sample is BaZrO
3pure phase, crystalline structure and BaZrO
3identical, belong to Emission in Cubic.Gained sample sends macroscopic orange red steady persistence after 260nm optical excitation, and emmission spectrum, as (f) in Fig. 3, can find out that the main peak value of emmission spectrum of this material is near 594nm.This luminescent material brightness is high and monochromaticity good.The time of persistence of this luminescent material grows and decay of afterglow is exponential law.
Embodiment 5. raw materials are BaCO
3(commercially available, analytical pure), ZrO
2(commercially available, analytical pure), Eu
2o
3(commercially available, 99.99wt%), TiO
2(commercially available, 99.99wt%) and H
3bO
3(commercially available, analytical pure) mol ratio between them should be mutually: 0.04: 0.04: 0.0125: 0.015: 0.05.Adopt identical preparation method and the preparation flow of comparative example 1, finally can obtain being mixed with the white powder product B aZrO of fusing assistant
3: Eu
0.025, Ti
0.015.Diffraction peak data and the BaZrO of gained sample
3the diffraction data of JCPDS standard card (06-399) consistent.Gained sample sends macroscopic orange red steady persistence after 260nm optical excitation, and the main peak value of the emmission spectrum of this material, near 594nm, and does not add H
3bO
3make fusing assistant and obtain that sample compares that initial brightness is greatly improved and monochromaticity is good, time of persistence is long, decay of afterglow is exponential law.
Embodiment 6. raw materials are BaCO
3(commercially available, analytical pure), ZrO
2(commercially available, analytical pure), Eu
2o
3(commercially available, 99.99wt%), TiO
2(commercially available, 99.99wt%) and H
3bO
3(commercially available, analytical pure) mol ratio between them should be mutually: 0.04: 0.04: 0.0125: 0.015: 0.10.Adopt identical preparation method and the preparation flow of comparative example 1, finally can obtain being mixed with the white powder product B aZrO of fusing assistant
3: Eu
0.025, Ti
0.015.As shown in (c) in Fig. 5, diffraction peak data and the BaZrO of gained sample
3the diffraction data of JCPDS standard card (06-399) consistent.Illustrate that gained sample is BaZrO
3pure phase, crystalline structure and BaZrO
3identical, belong to Emission in Cubic.Gained sample sends macroscopic orange red steady persistence after 260nm optical excitation, and emmission spectrum, as (c) in Fig. 6 shows: the peak value of emmission spectrum is near 594nm.The initial brightness of this luminescent material is high, monochromaticity good, time of persistence is long and decay of afterglow is exponential law.It is preferred mix proportion scheme.The decay of afterglow curve of this luminescent material is as (c) in Fig. 7.
Embodiment 7, and raw material is BaCO
3(commercially available, analytical pure), ZrO
2(commercially available, analytical pure), Eu
2o
3(commercially available, 99.99wt%), TiO
2(commercially available, 99.99wt%) and H
3bO
3(commercially available, analytical pure) mol ratio between them should be mutually: 0.04: 0.04: 0.0125: 0.015: 0.15.Adopt identical preparation method and the preparation flow of comparative example 1, finally can obtain being mixed with the white powder product B aZrO of fusing assistant
3: Eu
0.025, Ti
0.015.Diffraction peak data and the BaZrO of gained sample
3the diffraction data of JCPDS standard card (06-399) consistent.Gained sample sends macroscopic orange red steady persistence after 260nm optical excitation, and the main peak value of the emmission spectrum of this material is near 594nm, and initial brightness is high, monochromaticity good, time of persistence is long and decay of afterglow is exponential law.
Embodiment 9, and raw material is BaCO
3(commercially available, analytical pure), ZrO
2(commercially available, analytical pure), Eu
2o
3(commercially available, 99.99wt%), TiO
2(commercially available, 99.99wt%) and H
3bO
3(commercially available, analytical pure) mol ratio between them should be mutually: 0.04: 0.04: 0.0125: 0.015: 0.10.Adopt identical preparation method and the preparation flow of comparative example 1, but calcining temperature is adjusted into 1550 ℃.Finally can obtain being mixed with the white powder product B aZrO of fusing assistant
3: Eu
0.025, Ti
0.015.Diffraction peak data and the BaZrO of gained sample
3the diffraction data of JCPDS standard card (06-399) basically identical.Gained sample sends macroscopic orange red steady persistence after 260nm optical excitation, emmission spectrum, and the peak value of emmission spectrum is near 594nm.The initial brightness of this luminescent material is high, monochromaticity good, time of persistence is long and decay of afterglow is exponential law.
Industrial utilizability
The substrate material of orange-red long afterglow Luminescent Material of the present invention is selected is the BaZrO of stable chemical nature, high temperature resistant, high pure phase
3, between this matrix and Eu and Ti ion, have very high energy transfer efficiency.Mixing altogether of adopting also has very high energy transfer efficiency between ion Eu and Ti.Above factor is all conducive to stimulated luminescence, makes luminescent material after mixing altogether can send brightness high, and monochromaticity is good, the orange-red light that obviously extend time of persistence.Orange-red long afterglow Luminescent Material of the present invention, not containing radioelement, does not almost pollute environment.And preparation method of the present invention is simple, the atmosphere that do not need protection, is applicable to large-scale commercial production.
Orange-red long afterglow Luminescent Material of the present invention has very large potential using value in fields such as some display equipments and laser equipments.Also can in preparation process, suitably mix boron oxide compound (B
2o
3) or its acid (H
3bO
3) as fusing assistant, further improve the initial luminosity of this material.
Claims (17)
1. an orange-red long afterglow Luminescent Material, its chemical feature formula is: BaZrO
3: Eu
x, Ti
y, x=0.025 ± 0.005 in formula, y=0.015 ± 0.002, wherein, and x, y is that corresponding dopant ion is with respect to BaZrO
3mol ratio coefficient.
2. orange-red long afterglow Luminescent Material according to claim 1, is characterized in that, the luminosity of described luminescent material is BaZrO
3: 5～9 times of Eu, be 250～460 seconds time of persistence; Radiative monochromaticity compares BaZrO
3: Eu is high.
3. orange-red long afterglow Luminescent Material according to claim 2, is characterized in that, be 400～460 seconds the time of persistence of described luminescent material.
4. the preparation method of the orange-red long afterglow Luminescent Material described in claim 1 or 2, is characterized in that, comprises the following steps:
(1) by element chemistry, measure than the oxide compound or the carbonate raw material that take respective element,
(2) in the raw material weighing up, add dispersion agent, then grind,
(3) by the raw material drying mixing after grinding,
(4) dry raw material is carried out to pre-burning,
(5) take out the sample after pre-burning, calcining after grinding, to obtain described orange-red long afterglow Luminescent Material.
5. preparation method according to claim 4, is characterized in that, described dispersion agent is dehydrated alcohol.
6. preparation method according to claim 4, is characterized in that, in step (2), milling time is 20～40h.
7. according to the preparation method described in any one in claim 4 to 6, it is characterized in that, in step (2), described in be ground to ball milling.
8. according to the preparation method described in any one in claim 4 to 6, it is characterized in that, in step (4), dried raw material is placed in crucible, pre-burning 3～8h under the atmospheric environment of 700～900 ℃.
9. according to the preparation method described in any one in claim 4 to 6, it is characterized in that, in step (5), the sample by pre-burning and after grinding packs crucible into, is warming up to 1250～1550 ℃ in air atmosphere, calcining 4～8h.
10. according to the preparation method described in any one in claim 4 to 6, it is characterized in that, in step (2), during grinding, in raw material, add with respect to substrate material BaZrO
3mol ratio coefficient is 0.05～0.15 boron oxide compound B
2o
3or its sour H
3bO
3as fusing assistant, to improve the initial luminosity of described material.
11. preparation methods according to claim 7, is characterized in that, in step (2), during grinding, add with respect to substrate material BaZrO in raw material
3mol ratio coefficient is 0.05～0.15 boron oxide compound B
2o
3or its sour H
3bO
3as fusing assistant, to improve the initial luminosity of described material.
12. preparation methods according to claim 8, is characterized in that, in step (2), during grinding, add with respect to substrate material BaZrO in raw material
3mol ratio coefficient is 0.05～0.15 boron oxide compound B
2o
3or its sour H
3bO
3as fusing assistant, to improve the initial luminosity of described material.
13. preparation methods according to claim 9, is characterized in that, in step (2), during grinding, add with respect to substrate material BaZrO in raw material
3mol ratio coefficient is 0.05～0.15 boron oxide compound B
2o
3or its sour H
3bO
3as fusing assistant, to improve the initial luminosity of described material.
14. 1 kinds of orange-red long afterglow Luminescent Materials prepared by preparation method according to claim 9.
Orange-red long afterglow Luminescent Material prepared by 15. preparation methods according to claim 10, is characterized in that, the initial luminosity of described luminescent material is BaZrO
3: 9～11 times of Eu, be 300～630 seconds time of persistence; Radiative monochromaticity compares BaZrO
3: Eu is high, and initial luminosity is than the described BaZrO of the fusing assistant that undopes in preparation
3: Eu
x, Ti
yand BaZrO
3: Eu is high.
Orange-red long afterglow Luminescent Material prepared by 16. preparation methods according to claim 15, is characterized in that, be 500～630 seconds the time of persistence of described luminescent material.
Orange-red long afterglow Luminescent Material prepared by 17. preparation methods according to claim 16, is characterized in that, be 600 seconds the time of persistence of described luminescent material.
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Non-Patent Citations (6)
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| Blue long-lasting phosphorescence of Ti-doped BaZrO3 perovskites;Chiwon Moon, et al.;《Journal of Luminescence》;20090312;第129卷;第817–819页 * |
| Chiwon Moon, et al..Blue long-lasting phosphorescence of Ti-doped BaZrO3 perovskites.《Journal of Luminescence》.2009,第129卷 |
| GUAN Li, et al..Luminescent properties of Eu3+-doped BaZrO3 phosphor for UV white light emitting diode.《JOURNAL OF RARE EARTHS》.2010,第28卷(第Spec.期), |
| Luminescent properties of Eu3+-doped BaZrO3 phosphor for UV white light emitting diode;GUAN Li, et al.;《JOURNAL OF RARE EARTHS》;20101231;第28卷(第Spec.期);第292-294页 * |
| Y2O2S:0.03Eu,0.03Ti的长余辉特性及Ti向Eu3+的余辉传能机制;洪樟连等;《无机材料学报》;20060331;第21卷(第2期);第329-334页 * |
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