CN102134487B - Green emitting phosphor for plasma display panel and preparation method thereof - Google Patents
Green emitting phosphor for plasma display panel and preparation method thereof Download PDFInfo
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Abstract
The invention provides green emitting phosphor for a plasma display panel. The concrete chemical formula of the green emitting phosphor is as follows: M (1plus x) M' (1 minus 2x) BP208: Tbx, wherein x is more than 0 and less than or equal to 0.3, M is one or several of Li, Na and K, and the M' is one or several of Ca, Sr and Ba. The invention also provides a method for preparing the green emitting phosphor, comprising the following steps: firstly, weighing corresponding raw materials according to the weight ratio expressed in the chemical formula; secondly, carrying out high-temperature roasting on the raw materials and rinsing coasted materials; and thirdly, carrying out separation, filtration, size grading and drying on the rinsed materials to obtain the vacuum ultraviolet induced greenemitting phosphor having stable chemical property, short after time and excellent luminance.
Description
Technical field
The present invention relates to a kind of vacuum-ultraviolet light excited fluorescent powder and preparation method thereof, relate in particular to a kind of plasma display green emitting phosphor in the three primary colors fluorescent powder and preparation method thereof.
Background technology
At present, in intense market competition, traditional cathode-ray tube display has been faded in declining trend, the substitute is the flat-panel monitor that is celebrated with frivolous, the no x x radiation x of the bodily form, advantage such as low in energy consumption.Wherein the display effect of plasma flat-panel display is particularly outstanding, advantage such as have that high-contrast, color reducibility are good, gray scale abundant and response speed is fast, in global large screen television market in occupation of absolute predominance.The principle of luminosity of plasma display is to utilize noble gas discharge such as Xe or Xe-He, become isoionic state, give off the vacuum ultraviolet ray of 147nm and 172nm, ultraviolet ray excitedly be coated on the fluorescent material of inwall and send red, green, blue three primary colours light, just can realize colored the demonstration by spacing color mixed and circuit control.
At present, Zn
2SiO
4: Mn
2+Be a kind of green emitting phosphor the most frequently used in the plasma flat-panel display, Zn under the vacuum ultraviolet (VUV) optical excitation
2SiO
4: Mn
2+Has fabulous brightness, good anti-deteriorate performance and very fast saturated brightness.But, Zn
2SiO
4: Mn
2+Time of persistence oversize, be unfavorable for quick picture displayed.And, Zn
2SiO
4: Mn
2+Specific inductivity is higher than Plasmia indicating panel with the red and blue fluorescent material of use, therefore need one when the driving Plasmia indicating panel higher voltage of inducing.Someone has studied new green emitting phosphor, to satisfy all requirements of plasma panel.
The green emitting phosphor that this class is new is mainly Mn
2+The aluminate that activates, 0908502A1 has reported BaMgAl as European patent EP
10O
17: Mn
2+Fluorescent material, Japanese Patent JP A52143987 has reported Ba
0.9Mg
0.6Mn
0.168Al
2O
3Green emitting phosphor, the a kind of of US Patent No. 5989455 report improves the barium aluminate manganese green look fluorescent material of performance by the ratio of regulating Ba/Sr and Mg/Mn, Chinese patent CN1381547A report pass through the barium aluminate manganese green look fluorescent material that doping B improves performance.The green emitting phosphor that this class is new has purity of color preferably, lower specific inductivity.But, owing to use Mn
2+As activator, this class green emitting phosphor still has long time of persistence, and the luminosity of this class fluorescent material is also lower.
Summary of the invention
The purpose of the embodiment of the invention is to provide the plasma display green emitting phosphor that a kind of chemical property is stable, time of persistence is short, luminescent properties is good.
The embodiment of the invention is achieved in that the concrete chemical formula of described green emitting phosphor is: M
(1+x)M '
(1-2x)BP
2O
8: Tb
x, 0＜x≤0.3 wherein, M is one or more of Li, Na, K, M ' is one or more among Ca, Sr, the Ba.
Another purpose of the embodiment of the invention is also to provide the manufacture method of above-mentioned green emitting phosphor, comprises the steps:
1), will be according to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xComposition metering than mixing after the former abrasive lapping that takes by weighing, 0＜x≤0.3 wherein, M is one or more of Li, Na, K, M ' is one or more among Ca, Sr, the Ba;
2), above-mentioned mixed material is carried out high-temperature roasting, and the material behind the sintering is washed;
3), will wash the back material carry out separating and filtering, then according to its size classification;
4), the drying materials after the classification handled after, namely obtain green emitting phosphor.
Compare to prior art, technical solution of the present invention has following technique effect:
(1) green emitting phosphor of the present invention is short time of persistence, 2.33ms is only arranged, well below Zn of the prior art
2SiO
4: Mn
2+
(2) green emitting phosphor of the present invention has stronger emission under the vacuum ultraviolet (VUV) optical excitation, and luminous intensity is better than Zn
2SiO
4: Mn
2+, be well suited for being applied in Plasmia indicating panel and the non-mercury florescent lamp;
(3) green emitting phosphor of the present invention is highly stable, and after it was handled through bubble, heat etc., its performance did not change substantially;
(4) green fluorescence powder, preparation method thereof of the present invention is simple, cost is low, be easy to realize industrialization.
Green emitting phosphor of the present invention is well suited for vacuum ultraviolet (VUV) and burst of ultraviolel, has higher luminous intensity, and time of persistence is short, and good stability is so can be widely used in Plasmia indicating panel and the non-mercury florescent lamp.
Description of drawings
Fig. 1 is the exciting light spectrogram of the embodiment of the invention 1;
Fig. 2 is emmission spectrum and the Zn of the embodiment of the invention 1
2SiO
4: Mn
2+The emmission spectrum comparison diagram;
Fig. 3 is the fluorescence decay curve figure of the embodiment of the invention 1.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
The embodiment of the invention provides a kind of plasma display green emitting phosphor, and the concrete chemical formula of described green emitting phosphor is: M
(1+x)M '
(1-2x)BP
2O
8: Tb
x, 0＜x≤0.3 wherein, M is one or more of Li, Na, K, M ' is one or more among Ca, Sr, the Ba.
The span of described x is preferably 0.005≤x≤0.2.
Above-mentioned fluorescent material is to be matrix with the borophosphate, by trivalent rare earth ions Tb
3+Activate the borophosphate green emitting phosphor that forms.Select Mn for use considering
2+Be difficult to obtain fluorescent material than the short persistence time as activator, therefore adopt trivalent rare earth ions Tb
3+Make activator, consider that simultaneously borate group and phosphate groups have absorption preferably at the vacuum ultraviolet (VUV) wave band, so select for use borophosphate as matrix, under the exciting of vacuum-ultraviolet light, the energy of matrix absorption can be delivered to luminescence center Tb
3+, by Tb
3+Produce green emission, a kind of chemical property is stable, time of persistence is short, the green emitting phosphor that luminescent properties is good thereby prepare.
The manufacture method of above-mentioned green emitting phosphor comprises the steps:
1), will be according to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xComposition metering than mixing after the former abrasive lapping that takes by weighing, namely the molar ratio according to the respective element in the said structure formula takes by weighing.0＜x≤0.3 wherein, M is one or more of Li, Na, K, M ' is one or more among Ca, Sr, the Ba.
2), above-mentioned mixed material is carried out high-temperature roasting, and the material behind the sintering is washed;
3), will wash the back material carry out separating and filtering, then according to its size classification;
4), the drying materials after the classification handled after, namely obtain green emitting phosphor.
In described step 1), raw material can be selected compound or the simple substance that contains Li, the compound that contains Na or simple substance, the compound that contains K or simple substance, the compound that contains Ca or simple substance, the compound that contains Sr or simple substance, the compound that contains Ba or simple substance, the compound that contains B or simple substance, the compound that contains P or simple substance, the compound that contains Tb or simple substance for use.
Wherein: the compound of the described Li of containing, Na, K can be preferably carbonate, nitrate, oxalate, the oxyhydroxide that contains Li, Na, K; The compound of the described Ca of containing, Sr, Ba can be preferably carbonate, nitrate, oxalate, the oxyhydroxide that contains Ca, Sr, Ba; Described preferred its oxide compound of compound, acid or the salt that contains B, P; The described compound that contains Tb is preferably oxide compound or the salt of Tb.
In described step 2) in, high-temperature roasting is former abrasive lapping fully to be mixed be placed in the box High Temperature Furnaces Heating Apparatus, can in air, nitrogen, hydrogen or CO (carbon monoxide converter) gas, carry out under any one atmosphere, also can be to carry out under the mixed atmosphere of nitrogen and hydrogen, and roasting at high temperature 1-3 time, each roasting finishes and carries out subsequent processing again after being cooled to room temperature, each maturing temperature is 400-1300 ℃, preferred 800-1000 ℃, the time is 1-24 hour, preferred 10-16 hour.
In described step 2) in, washing is to adopt a kind of in deionized water or the dehydrated alcohol or two kinds.
Described step 3) separating and filtering comprises a kind of in B suction filtration, vacuum filtration, the centrifuging, with other impurity of screening and separating; Size classification is to adopt air classification or liquid hierarchical approaches to sub-elect 1-10 micron powder, and preferred size is the 2-6 micron.
The bake out temperature of described step 4) is 60-160 ℃, is preferably 80-120 ℃.
Below illustrate the borophosphate green emitting phosphor by a plurality of embodiment difference form and preparation method thereof, with and aspect such as performance.
Embodiment 1: consist of K
1.05Sr
0.9BP
2O
8: Tb
0.05Green emitting phosphor
According to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xPrepare burden, x=0.05 wherein, M is K, and M ' is Li, and the stoichiometric ratio by above-mentioned chemical formula takes by weighing (NH then
4)
2HPO
4, H
3BO
3, SrCO
3, K
2CO
3, Tb
4O
7After former abrasive lapping fully mixes, the sintering 24h under 400 ℃ of air atmospheres of elder generation, it is even to take out mix grinding, and then in 800 ℃ reducing atmosphere (volume ratio N
2/ H
2=95: sintering is 24 hours 5), naturally cools to room temperature, uses deionized water wash behind the taking-up porphyrize, carries out carrying out the liquid classification after the centrifuging, chooses the powder that granularity is the 8-10 micron, dries down at 60 ℃ at last and obtains the PDP green emitting phosphor.
As shown in Figure 1 and Figure 2, the green emitting phosphor of present embodiment preparation all has stronger absorption at 147nm and 172nm, especially excites down at 172nm, and very strong 544nm green emission is arranged, and luminous intensity is better than Zn of the prior art
2SiO
4: Mn
2+, show that this fluorescent material and the vacuum ultraviolet (VUV) wavelength that the extensive xenon base rare gas plasma body that adopts of present Plasmia indicating panel produces match.As shown in Figure 3, the time of persistence of present embodiment fluorescent material is very short, 2.23ms is only arranged, well below Zn
2SiO
4: Mn
2+Time of persistence.
Embodiment 2: consist of Na
1.002Ba
0.996BP
2O
8: Tb
0.002Green emitting phosphor
According to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xPrepare burden, x=0.002 wherein, M is Na, and M ' is Ba, and the stoichiometric ratio by above-mentioned chemical formula takes by weighing (NH then
4)
2HPO
4, H
3BO
3, BaCO
3, Na
2CO
3, Tb
4O
7After former abrasive lapping fully mixes, the sintering 20h under 600 ℃ of air atmospheres of elder generation, it is even to take out mix grinding, and then in 800 ℃ reducing atmosphere (volume ratio N
2/ H
2=95: sintering is 18 hours 5), naturally cools to room temperature, uses deionized water wash behind the taking-up porphyrize, carries out carrying out the liquid classification behind the B suction filtration, chooses the powder that granularity is the 5-7 micron, dries down at 60 ℃ at last and obtains the PDP green emitting phosphor.
Embodiment 3: consist of Li
1.3Ca
0.4BP
2O
8: Tb
0.3Green emitting phosphor
According to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xPrepare burden, x=0.3 wherein, M is Li, and M ' is Ca, and the stoichiometric ratio by above-mentioned chemical formula takes by weighing (NH then
4)
2HPO
4, H
3BO
3, CaCO
3, Li
2CO
3, Tb
4O
7After former abrasive lapping fully mixes, the sintering 18h under 800 ℃ of air atmospheres of elder generation, it is even to take out mix grinding, and then in 850 ℃ reducing atmosphere (volume ratio N
2/ H
2=95: sintering is 15 hours 5), naturally cools to room temperature, uses deionized water wash behind the taking-up porphyrize, carries out carrying out the liquid classification after the centrifuging, chooses the powder that granularity is the 4-6 micron, dries down at 100 ℃ at last and obtains the PDP green emitting phosphor.
Embodiment 4: consist of Li
0.1KSr
0.8BP
2O
8: Tb
0.1Green emitting phosphor
According to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xPrepare burden, x=0.1 wherein, M is Li, K, and M ' is Sr, and the stoichiometric ratio by above-mentioned chemical formula takes by weighing (NH then
4)
2HPO
4, H
3BO
3, SrCO
3, Li
2CO
3, K
2CO
3, Tb
4O
7After former abrasive lapping fully mixes, the sintering 15h under 1000 ℃ of air atmospheres of elder generation, it is even to take out mix grinding, and then in 750 ℃ reducing atmosphere (volume ratio N
2/ H
2=95: sintering is 10 hours 5), naturally cools to room temperature, uses deionized water wash behind the taking-up porphyrize, carries out carrying out the liquid classification after the centrifuging, chooses the powder that granularity is the 3-5 micron, dries down at 120 ℃ at last and obtains the PDP green emitting phosphor.
Embodiment 5 consists of K
1.08Sr
0.42Ba
0.42BP
2O
8: Tb
0.08Green emitting phosphor
According to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xPrepare burden, x=0.08 wherein, M is K, and M ' is Sr, Ba, and the stoichiometric ratio by above-mentioned chemical formula takes by weighing (NH then
4)
2HPO
4, H
3BO
3, SrCO
3, Li
2CO
3, K
2CO
3, BaCO
3, Tb
4O
7After former abrasive lapping fully mixes, the sintering 5h under 1000 ℃ of air atmospheres of elder generation, it is even to take out mix grinding, and then in 1000 ℃ reducing atmosphere (volume ratio N
2/ H
2=95: sintering is 8 hours 5), naturally cools to room temperature, uses deionized water wash behind the taking-up porphyrize, carries out carrying out the liquid classification after the centrifuging, chooses the powder that granularity is the 3-5 micron, dries down at 100 ℃ at last and obtains the PDP green emitting phosphor.
Embodiment 6: consist of NaK
0.2Sr
0.6BP
2O
8: Tb
0.2Green emitting phosphor
According to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xPrepare burden, wherein: x=0.2, M are Na, K, and M ' is Sr, and the stoichiometric ratio by above-mentioned chemical formula takes by weighing (NH then
4)
2HPO
4, H
3BO
3, SrCO
3, Na
2CO
3, K
2CO
3, Tb
4O
7After former abrasive lapping fully mixes, first sintering 4 hours under 1100 ℃ of air atmospheres, it is even to take out mix grinding, and then in 1000 ℃ reducing atmosphere (volume ratio N
2/ H
2=95: sintering is 2 hours 5), naturally cools to room temperature, uses deionized water wash behind the taking-up porphyrize, carries out carrying out the liquid classification after the centrifuging, chooses the powder that granularity is the 2-4 micron, dries down at 100 ℃ at last and obtains the PDP green emitting phosphor.
Embodiment 7: consist of Li
0.3K
0.8Sr
0.5Ba
0.3BP
2O
8: Tb
0.1Green emitting phosphor
According to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xPrepare burden, wherein: X=0.1, M are Li, K, and M ' is Sr, Ba, and the stoichiometric ratio by above-mentioned chemical formula takes by weighing (NH then
4)
2HPO
4, H
3BO
3, SrCO
3, BaCO
3, Li
2CO
3, K
2CO
3, Tb
4O
7After former abrasive lapping fully mixes, first sintering 4 hours under 400 ℃ of air atmospheres, it is even to take out mix grinding, and then in 1000 ℃ reducing atmosphere (volume ratio N
2/ H
2=95: sintering is 2 hours 5), naturally cools to room temperature, uses deionized water wash behind the taking-up porphyrize, carries out the laggard promoting the circulation of qi flow point of centrifuging level, chooses the powder that granularity is the 4-6 micron, dries down at 120 ℃ at last and obtains the PDP green emitting phosphor.
Embodiment 8: consist of Na
0.02KSr
0.7Ca
0.26BP
2O
8: Tb
0.02Green emitting phosphor
According to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xPrepare burden, wherein: X=0.02, M are Na, K, and M ' is Sr, Ca, and the stoichiometric ratio by above-mentioned chemical formula takes by weighing (NH then
4)
2HPO
4, H
3BO
3, SrCO
3, CaCO
3, Na
2CO
3, K
2CO
3, Tb
4O
7After former abrasive lapping fully mixes, first sintering 1 hour under 1300 ℃ of air atmospheres, it is even to take out mix grinding, and then in 1000 ℃ reducing atmosphere (volume ratio N
2/ H
2=95: sintering is 2 hours 5), naturally cools to room temperature, uses absolute ethanol washing behind the taking-up porphyrize, carries out carrying out the liquid classification after the centrifuging, chooses the powder that granularity is the 3-5 micron, dries down at 160 ℃ at last and obtains the PDP green emitting phosphor.
Embodiment 9: consist of Li
0.2Na
0.15K
0.8Sr
0.7BP
2O
8: Tb
0.15Green emitting phosphor
According to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xPrepare burden, wherein: X=0.15, M are Li, Na, K, and M ' is Sr, and the stoichiometric ratio by above-mentioned chemical formula takes by weighing (NH then
4)
2HPO
4, B
2O
3, SrCO
3, Li
2CO
3, Na
2CO
3, K
2CO
3, Tb
4O
7After former abrasive lapping fully mixes, first sintering 1 hour under 1200 ℃ of air atmospheres, it is even to take out mix grinding, and then in 950 ℃ reducing atmosphere (volume ratio N
2/ H
2=95: sintering is 12 hours 5), naturally cools to room temperature, uses absolute ethanol washing behind the taking-up porphyrize, carries out carrying out the liquid classification after the centrifuging, chooses the powder that granularity is the 3-5 micron, dries down at 160 ℃ at last and obtains the PDP green emitting phosphor.
Embodiment 10: consist of Na
0.2KBa
0.3Sr
0.3BP
2O
8: Tb
0.2Green emitting phosphor
According to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xPrepare burden, wherein: X=0.2, M are Na, K, and M ' is Ba, Sr, and the stoichiometric ratio by above-mentioned chemical formula takes by weighing P then
2O
5, B
2O
3, BaCO
3, SrCO
3, Na
2CO
3, K
2CO
3, Tb
4O
7After former abrasive lapping fully mixes, first sintering 1 hour under 500 ℃ of air atmospheres, it is even to take out mix grinding, and then in 1000 ℃ reducing atmosphere (volume ratio N
2/ H
2=95: sintering is 8 hours 5), naturally cools to room temperature, uses absolute ethanol washing behind the taking-up porphyrize, carries out carrying out the liquid classification after the centrifuging, chooses the powder that granularity is the 4-5 micron, dries down at 160 ℃ at last and obtains the PDP green emitting phosphor.
Embodiment 11: consist of Li
0.5Na
0.5K
0.25Ca
0.05Sr
0.2Ba
0.25BPO
8: Tb
0.25Green emitting phosphor
According to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xPrepare burden, x=0.25 wherein, M is K, Li, Na, and M ' is Ca, Sr, Ba, and the stoichiometric ratio by above-mentioned chemical formula takes by weighing (NH then
4)
2HPO
4, H
3BO
3, CaCO
3, SrCO
3, BaCO
3, Li
2CO
3, K
2CO
3, Na
2CO
3, Tb
4O
7After raw material, grinding fully mix, the sintering 6h under 600 ℃ of air atmospheres of elder generation, it is even to take out mix grinding, and then in 1000 ℃ reducing atmosphere (volume ratio N
2/ H
2=95: sintering is 4 hours 5), naturally cools to room temperature, uses deionized water wash behind the taking-up porphyrize, carries out carrying out the liquid classification after the centrifuging, chooses the powder that granularity is the 6-8 micron, dries down at 100 ℃ at last and obtains the PDP green emitting phosphor.
To sum up, the embodiment of the invention adopts trivalent rare earth ions Tb
3+Make activator.Consider that simultaneously borate group and phosphate groups have absorption preferably at the vacuum ultraviolet (VUV) wave band, thereby select for use borophosphate as matrix, pass through Tb
3+Under the exciting of vacuum-ultraviolet light, matrix arrives luminescence center Tb with the transmission ofenergy that absorbs
3+, by Tb
3+Produce green emission, lack the vacuum ultraviolet-excited green emitting phosphor that luminescent properties is good a kind of time of persistence thereby prepare.Be well suited for being applied in Plasmia indicating panel and the non-mercury florescent lamp.Highly stable by the green emitting phosphor that preparation method of the present invention obtains, after it was handled through bubble, heat etc., its performance did not change substantially, and the preparation method is simple, cost is low, is easy to realize industrialization.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a plasma display green emitting phosphor is characterized in that, the concrete chemical formula of described fluorescent material is: M
(1+x)M '
(1-2x)BP
2O
8: Tb
x, 0＜x≤0.3 wherein, M is one or more of Li, Na, K, M ' is one or more among Ca, Sr, the Ba.
2. plasma display green emitting phosphor according to claim 1 is characterized in that, the span of described x is preferably 0.005≤x≤0.2.
3. a plasma display preparation method of green emitting phosphor is characterized in that, comprises the steps:
1), will be according to chemical formula M
(1+x)M '
(1-2x)BP
2O
8: Tb
xComposition metering than mixing after the former abrasive lapping that takes by weighing, 0＜x≤0.3 wherein, M is one or more of Li, Na, K, M ' is one or more among Ca, Sr, the Ba;
2), above-mentioned mixed material is carried out high-temperature roasting, and the material behind the sintering is washed;
3), will wash the back material carry out separating and filtering, then according to its size classification;
4), the drying materials after the classification handled after, namely obtain green emitting phosphor.
4. plasma display preparation method of green emitting phosphor according to claim 3 is characterized in that, the span of described x is preferably 0.005≤x≤0.2.
5. according to claim 3 or 4 described plasma display preparation method of green emitting phosphor, it is characterized in that the raw material of described step 1) is compound or the simple substance that contains Li, the compound that contains Na or simple substance, the compound that contains K or simple substance, the compound that contains Ca or simple substance, the compound that contains Sr or simple substance, the compound that contains Ba or simple substance, the compound that contains B or simple substance, the compound that contains P or simple substance, the compound that contains Tb or simple substance.
6. plasma display preparation method of green emitting phosphor according to claim 5 is characterized in that, the compound of the described Li of containing, Na, K is preferably carbonate, nitrate, oxalate, the oxyhydroxide of Li, Na, K; The compound of the described Ca of containing, Sr, Ba is preferably carbonate, nitrate, oxalate, the oxyhydroxide of Ca, Sr, Ba; The compound of the described B of containing, P is preferably oxide compound, acid or the salt of B, P; The described compound that contains Tb is preferably oxide compound or the salt of Tb.
7. plasma display preparation method of green emitting phosphor according to claim 3, it is characterized in that, described step 2) high-temperature roasting in is to carry out under any one atmosphere in air, nitrogen, hydrogen or CO (carbon monoxide converter) gas, or under the mixed atmosphere of nitrogen and hydrogen, carry out, and roasting at high temperature 1-3 time, each maturing temperature is 400-1300 ℃, and the time is 1-24 hour.
8. plasma display preparation method of green emitting phosphor according to claim 3 is characterized in that, described step 2) in washing be to adopt a kind of in deionized water or the dehydrated alcohol or two kinds.
9. plasma display preparation method of green emitting phosphor according to claim 3 is characterized in that, described step 3) separating and filtering comprises a kind of in vacuum filtration, the centrifuging; Described step 3) size classification is to adopt air classification or liquid classification and sorting to go out 1-10 micron powder.
10. plasma display preparation method of green emitting phosphor according to claim 3 is characterized in that, described step 4) bake out temperature is 60-160 ℃.
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| CN104449723B (en) * | 2014-12-25 | 2016-08-24 | 英特美光电（苏州）有限公司 | A kind of boron phosphate luminescent powder of transmitting green fluorescence and its preparation method and application |
| CN109929554B (en) * | 2018-12-25 | 2021-12-21 | 云南大学 | Boron phosphate green fluorescent powder and preparation method and application thereof |
| CN109929553B (en) * | 2018-12-25 | 2021-12-24 | 云南大学 | Borophosphate orange-red fluorescent powder and preparation method and application thereof |
| CN109929555B (en) * | 2018-12-25 | 2022-01-18 | 云南大学 | White boron phosphate fluorescent powder and preparation method and application thereof |
| CN110003906A (en) * | 2019-02-18 | 2019-07-12 | 云南大学 | A kind of europium boron phosphorus doped hydrochlorate orange-red fluorescence powder and its preparation method and application |
| CN110003904A (en) * | 2019-04-04 | 2019-07-12 | 云南大学 | A kind of Ce boron phosphorus doped hydrochlorate ultraviolet fluorescence powder and preparation method thereof |
| CN110003905A (en) * | 2019-04-04 | 2019-07-12 | 云南大学 | A kind of Pr activation borophosphate red fluorescence powder and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005015678A (en) * | 2003-06-27 | 2005-01-20 | Sumitomo Chem Co Ltd | Phosphor for vacuum-ultraviolet-excited luminescent element |
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2010
- 2010-01-26 CN CN 201010103180 patent/CN102134487B/en not_active Expired - Fee Related
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| Dan Zhao et al..KMBP2O8 (M = Sr, Ba): A New Kind of Noncentrosymmetry Borophosphate with the Three-Dimensional Diamond-like Framework.《Inorg. Chem.》.2009,第48卷第6623-6629页. |
| JP特开2005-15678A 2005.01.20 |
| KMBP2O8 (M = Sr, Ba): A New Kind of Noncentrosymmetry Borophosphate with the Three-Dimensional Diamond-like Framework;Dan Zhao et al.;《Inorg. Chem.》;20090609;第48卷;第6623-6629页 * |
| 常温常压下硼磷酸盐的直接合成与形成过程研究;葛明辉等;《无机化学学报》;20050630;第21卷(第6期);第826-829页 * |
| 葛明辉等.常温常压下硼磷酸盐的直接合成与形成过程研究.《无机化学学报》.2005,第21卷(第6期),第826-829页. |
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