CN101133136A - Display equipment and green fluophor - Google Patents
Display equipment and green fluophor Download PDFInfo
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- CN101133136A CN101133136A CNA2005800487914A CN200580048791A CN101133136A CN 101133136 A CN101133136 A CN 101133136A CN A2005800487914 A CNA2005800487914 A CN A2005800487914A CN 200580048791 A CN200580048791 A CN 200580048791A CN 101133136 A CN101133136 A CN 101133136A
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Abstract
A display device which has at least a phosphor layer, characterized in that the phosphor layer comprises a green phosphor represented by the following general formula: (A1-xBx)(Zn1-yMny)Al10O17 wherein A represents an element selected from among Ca, Ba and Sr, B represents a rare earth element, x is a number satisfying 0.0001 = x = 0.1, and y is a number satisfying 0.02 = x = 0.14.
Description
Technical field
The present invention relates to display unit and green-emitting phosphor.More particularly, the present invention relates to dispose the such display unit and the green-emitting phosphor that irradiated light can be converted to low-yield (long wavelength) light of plasma display (PDP) of the luminescent coating that comprises green-emitting phosphor.
Background technology
In various fields, fluor is widely used.For example, use has: the means of illumination fluor that luminescent lamp is such, the display unit fluor that PDP is such, X line pick up tube fluor.For example in colour display device, general use is red, the fluor of blue and green 3 kinds of colors.Obtain white by making up the fluorescence that these 3 kinds of fluor send.Especially, because green-emitting phosphor is the important fluor of the briliancy of decision white light, so expecting to provide the green-emitting phosphor of the fluorescence that can send high briliancy and high color purity.
As the green-emitting phosphor of prior art, that knows has (Ba, Mn) Al
12O
19, (Y, Tb) BO
3, and Zn
2SiO
4: Mn.In addition, though be blue emitting phophor, also knowing has with (BaMgAl
10O
17: Eu
2+) (replacing a part of Mg) with Ca, Cu, Zn, Pb, Cd, Mg, Sn the expression fluor.(TOHKEMY 2002-173677 communique: patent documentation 1)
Patent documentation 1: TOHKEMY 2002-173677 communique
Summary of the invention
In above-mentioned green-emitting phosphor, though (Ba, Mn) Al
12O
19Be high color purity, but the problem of low briliancy is arranged.On the other hand, though (Y, Tb) BO
3Be high briliancy, but the problem of low purity of color is arranged.
Compare Zn with above-mentioned green-emitting phosphor
2SiO
4: the purity of color of Mn and the quality of balance of briliancy are relatively good, often use in the such display unit of PDP.
But, Zn
2SiO
4: the purity of color of Mn and briliancy are all insufficient, wish further to improve its purity of color and briliancy.
Summary of the invention
So, according to the present invention, provide a kind of display unit, it is characterized in that: be the display unit that contains luminescent coating at least, wherein,
Above-mentioned luminescent coating contains the green-emitting phosphor of representing with following general expression,
(A
1-xB
x)(Zn
1-yMn
y)Al
10O
17
(A is the element of selecting from Ca, Ba and Sr, and B is a rare earth element, and x is the number that satisfies 0.0001≤x≤0.1, and y is the number that satisfies 0.02≤y≤0.14).
Moreover, according to the present invention, provide a kind of green-emitting phosphor, it is characterized in that:
Above-mentioned green-emitting phosphor represents with following general expression,
(A
1-xB
x)(Zn
1-yMn
y)Al
10O
17
(A is the element of selecting from Ca, Ba and Sr, and B is a rare earth element, and x is the number that satisfies 0.0001≤x≤0.1, and y is the number that satisfies 0.02≤y≤0.14).
According to the present invention, can be provided at the display unit that contains green-emitting phosphor in the luminescent coating, characteristics such as the purity of color of this green-emitting phosphor, briliancy, life-span, especially the purity of color characteristic is very superior.
Description of drawings
The synoptic diagram of [Fig. 1] βYang Hualv structure.
The schematic isometric of [Fig. 2] PDP.
The luminescent spectrum of the fluor of [Fig. 3] embodiment 1.
[Fig. 4] illustrates the chart of rare earth element concentration interdependence of luminous quantity of the fluor of embodiment 1.
[Fig. 5] illustrates the chart of Sr concentration interdependence of luminous quantity of the fluor of embodiment 2.
[Fig. 6] illustrates the chart of the relation of the time of lighting a lamp of embodiment 3 and peak value (peak) intensity.
The explanation of symbol
11,21: substrate
17,27: dielectric layer
18: protective layer
28: luminescent coating
29: the next door
30: the space
41: transparency electrode
42: bus electrode (bus electrode)
100：PDP
A: addressing electrode (Address Electrode)
Embodiment
At first, display unit of the present invention is the display unit that has luminescent coating at least.This luminescent coating comprises the green-emitting phosphor of representing with following general expression,
(A
1-xB
x)(Zn
1-yMn
y)Al
10O
17
(A is the element of selecting from Ca, Ba and Sr, and B is a rare earth element, and x is the number that satisfies 0.0001≤x≤0.1, and y is the number that satisfies 0.02≤y≤0.14).And the meaning of x and y is mol ratio (atomic ratio).
In above-mentioned general expression, A is that among Ca, Ba or the Sr any one gets final product, and also can comprise in these elements two or all.Specifically, can enumerate these combinations of aftermentioned: Ca/Ba, Ca/Sr, Ba/Sr, Ca/Ba/Sr.
In above-mentioned general expression, with regard to B, can enumerate rare earth elements such as La, Pr, Nd, Pm, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ce, Tb, Y.In above-mentioned, further preferred rare earth element is Gd, Lu, Yb, Y, especially preferred Gd, Y.
X is than under the 0.0001 little situation, because do not observe the increase of briliancy, so bad.Under the big situation,, also more bad than 0.1 because briliancy reduces.Preferred x is 0.001～0.007.More particularly, especially have following preferred: when B is Gd, be 0.0001～0.02 scope; When B is Lu, be 0.0001～0.03 scope; When B is Yb, be 0.0001～0.015 scope; When B is Y, be 0.0001～0.05 scope.
Y than 0.02 little or than 0.14 big in because there is green-emitting phosphor Zn than prior art
2SiO
4: the situation that the briliancy of Mn is also low, so not preferred.The span of the y that is more preferably is 0.04～0.10.
Particularly, enumerate following combination: (Ba
1-xGd
x) (Zn
1-yMn
y) Al
10O
17, (Ba
1-xLu
x) (Zn
1-yMn
y) Al
10O
17, (Ba
1-xYb
x) (Zn
1-yMn
y) Al
10O
17, (Ba
1-xY
x) (Zn
1-yMn
y) Al
10O
17
Then, A also can comprise Ba and Sr.So the green-emitting phosphor that the both comprises can be represented in order to following general expression.
(Ba
1-z-xSr
zB
x) (Zn
1-yMn
y) Al
10O
17(A, B, x and y are the same with above-mentioned definition, and z is the number that satisfies 0＜z＜1).
Particularly, enumerate (Ba
1-z-xSr
zGd
x) (Zn
1-yMn
y) Al
10O
17
Discoveries such as contriver:, contain Sr by making A here, the briliancy of green-emitting phosphor can further improve.Especially, be 0.25～0.45 scope and comprise under the situation of Sr, can obtain having concurrently the green-emitting phosphor of high briliancy and high color purity at z.
And, in the scope of the effect that does not influence above-mentioned green-emitting phosphor, also can the part of Zn be replaced with Mg.Further, though above-mentioned green-emitting phosphor is with AZnAl
10O
17For mother metal, with Mn is luminescence center, also can make CaAl in the proper ratio in this mother metal
12O
19, SrAl
12O
19Wait other mother metal mixed crystallization.
Though as long as have high briliancy and high color purity than the green-emitting phosphor of prior art, promptly the crystal structure of above-mentioned green-emitting phosphor is not done special qualification, but find: in mother metal that constitutes green-emitting phosphor and luminescence center the inside, when mother metal had βYang Hualv structure shown in Figure 1, the green-emitting phosphor that demonstrates high briliancy and high color purity had a lot.
Though do not limit the light wavelength of shining especially in order to obtain fluorescence from above-mentioned green-emitting phosphor, under the situation of the such display unit of plasma display (PDP), the wavelength (for example, 147nm or 172nm) of preferred vacuum ultraviolet.
And, in above-mentioned green-emitting phosphor, also can mix following other green-emitting phosphor.
(1) has the green-emitting phosphor of the crystal structure of the magnetic lead-acid type (Magneto plumbite) that contains Mn, La and Tb at least.
(2) have and contain Tb and La at least, but do not contain the green-emitting phosphor of crystal structure of the magnetic lead-acid type of Ce.
(3) has the green-emitting phosphor of the crystal structure of the magnetic lead-acid type that contains Mn, La and Zn at least.
These other green-emitting phosphor, bigger than the briliancy of above-mentioned green-emitting phosphor mostly, by mixing, can further improve purity of color and briliancy with above-mentioned green-emitting phosphor.
As other the object lesson of green-emitting phosphor, can enumerate:
About (1), LaMgAl
11O
19: Mn, Tb, La
xAl
yO
z(x: y: z=0.5～1.2: 11～12: 18～19.5) etc.
About (2), LaMgAl
11O
19: Tb, LaMgAl
11O
19: Mn, Tb etc.
About (3), LaMgAl
11O
19, (La
1-xTb
x)
y(Mg
1-a-bMn
aZn
b) Al
zO
1.5 (z+y)+1(in the formula, 0≤x≤0.5,0.8≤y≤1.2,0＜a+b≤1,8≤z≤30) etc.
Can utilize the method that is widely known by the people to form above-mentioned green-emitting phosphor.For example, weighing contains the compound of A, Zn, Mn and Al, makes them become desirable mol ratio.Be fired into these compounds.Then, by the sintered compact of resulting green-emitting phosphor is pulverized and classification, can access the green-emitting phosphor in regulation particle footpath.
More specifically, preferred: as under the condition of 1300～1700 ℃ firing temperatures, 1～10 hour firing time, nitrogen atmosphere, to burn till.And,, in the scope of not overslaugh effect of the present invention, can use AlF in order to reduce firing temperature
3, MgF
2, LiF, NaF etc. the reaction accelerator formed of halogenide.
In addition, also can form other green-emitting phosphor according to above-mentioned green-emitting phosphor.
As display unit of the present invention, enumerate PDP, CRT, fluorescent display tube, X line pick up tube etc.Below, as an example of display unit of the present invention, just the PDP of Fig. 2 is illustrated.
The PDP of Fig. 2 is three electrode A C profiles discharge PDP.And the present invention is not limited to this PDP, so long as contain the PDP of green-emitting phosphor, can be suitable for any structure.For example, being not limited to the AC type, also can be the DC type, can both use among any PDP of reflection-type and infiltration type.
The PDP100 of Fig. 2 is made of front substrate and back substrate.
At first, front substrate generally has following component part: many show electrodes that form on substrate 11; The dielectric layer 17 that forms in the mode that covers show electrode; Be formed on the dielectric layer 17 and be exposed to the protective layer 18 of discharge space.
Substrate 11 is not particularly limited, for example can lists glass substrate, quartz glass substrate, silicon substrate etc.
Show electrode is made of the such transparency electrode 41 of ITO.And, in order to reduce the resistance of show electrode, also for example can on transparency electrode 41, form bus electrode (bus electrode), (3 layers of structure of Cr/Cu/Cr) 42.
Dielectric layer 17 utilizes normally used material formation in PDP.Specifically, can form by being coated in to burn till on the substrate by the paste body (paste) that low melting point glass and tackiness agent constitute.
The damage that protective layer 18 causes in order to protect dielectric layer 17 to avoid the ionic conflict that discharge produced when showing is provided with.Protective layer 18 is made of for example MgO, CaO, SrO, BaO etc.
Then, back substrate generally has following component part: the formed many addressing electrode A of the direction of intersecting with above-mentioned show electrode in substrate 21 upper edges; Cover the dielectric layer 27 of addressing electrode A; Between adjacent addressing electrode A, be formed on the next door 29 of many strips on the dielectric layer 27; And comprise face formed luminescent coating 28 in next door between the next door 29.
In substrate 21 and dielectric layer 27, can use the thing similar with the substrate 11 that constitutes above-mentioned front substrate and dielectric layer 17.
Addressing electrode A for example is made of the metal level of Al, Cr, Cu etc. or 3 layers of structure of Cr/Cu/Cr.
To be coated on the dielectric layer 27 by the paste body (paste) that low melting point glass and bonding agent constitute, after the drying, can form next door 29 by utilizing sandblast (sandblast) method to cut.In addition, in tackiness agent, used under the situation of photoresist, used the mask of regulation shape, after exposure and the development, can form next door 29 by burning till also.
In Fig. 2, be formed with luminescent coating 28 between the next door 29, above-mentioned green-emitting phosphor can use as the raw material of this luminescent coating 28.The formation method of luminescent coating 28 is not done special qualification, enumerates the method that is widely known by the people.For example, tackiness agent is dissolved in and forms solution in the solvent, and fluor is distributed in this solution, generates to stick with paste body (paste), should stick with paste body (paste) and be coated with 29 of next doors, burns till in air atmosphere, can form luminescent coating 28 thus.
Then, with show electrode (41,42) and the vertical mode of addressing electrode A above-mentioned front substrate and back substrate are oppositely arranged, make two electrodes be in the inboard of two substrates, in the space 30 of being enclosed, fill discharge gas then by next door 29, thus, can form PDP100.
And; in above-mentioned PDP, though on the next door that discharge space is stipulated, dielectric layer and protective membrane, forming luminescent coating on the next door of substrate-side and the dielectric layer overleaf; profit uses the same method, and also forms luminescent coating on the protective membrane of substrate-side in front.
Below, be illustrated with regard to embodiments of the invention.And the present invention is not limited to following embodiment.
Mixed 3 hours after in the raw material of following mol ratio, adding adequate amount of ethanol.
[table 1]
| Raw material | Mol ratio | ||
| Fluor a | Fluor b | | |
| BaCO | |||
| 3 | 1 | 0.997 | 0.99 |
| Gd 2O 3 | 0 | 0.0015 | 0.005 |
| Al 2O 3 | 5 | 5 | 5 |
| ZnO | 0.97 | 0.97 | 0.97 |
| MnCO 3 | 0.03 | 0.03 | 0.03 |
| AlF 3 | 0.03 | 0.03 | 0.03 |
Mixture is placed nitrogen atmosphere, under 1300 ℃ of temperature, burnt till through 4 hours.By the sintered compact that pulverizing obtains, make with formula (Ba
1-xGd
x) (Zn
0.97Mn
0.03) Al
10O
17Fluor a～the c of (0.01≤x≤0.3) expression.Utilize X-ray diffraction, confirmed that the fluor that obtains is the crystallization with βYang Hualv structure.
In Fig. 3, the luminescent spectrum when expression is mapped to the illumination of 147nm on the fluor b.From Fig. 3, what can understand that fluor b sends is green glow.And, can understand that the luminous intensity of fluor b is (Zn, Mn)
2SiO
4About 2 times size.And, can know (Zn than Ba
0.97Mn
0.03) Al
10O
17(fluor is a) big by about 10%.
Except Gd being changed into Lu, Yb or Y, the same fluor d～i that obtains with aforesaid method.The mol ratio of the raw material of fluor d～i is as shown in table 2 below.
[table 2]
| Raw material | Mol ratio | |||||
| Fluor d | Fluor e | Fluor f | Fluor g | Fluor h | Fluor i | |
| BaCO 3 | 0.997 | 0.99 | 0.997 | 0.99 | 0.997 | 0.99 |
| Lu 2O 3 | 0.0015 | 0.005 | 0 | 0 | 0 | 0 |
| Yb 2O 3 | 0 | 0 | 0.0015 | 0.005 | 0 | 0 |
| Y 2O 3 | 0 | 0 | 0 | 0 | 0.0015 | 0.005 |
| Al 2O 3 | 5 | 5 | 5 | 5 | 5 | 5 |
| ZnO | 0.97 | 0.97 | 0.97 | 0.97 | 0.97 | 0.97 |
| MnCO 3 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
| AlF 3 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
And then the luminous quantity of mensuration fluor a～i is with (Zn, Mn)
2SiO
4Luminous quantity be 1 o'clock, this luminous quantity and (Zn, Mn)
2SiO
4Luminous quantity such as shown in Figure 4.And, in table 3, the tristimulus coordinates (x, y) and the luminous quantity of each fluor shown together.
[table 3]
| Rare earth element | Addition | Tristimulus coordinates x | Tristimulus coordinates y | Luminous quantity | |
| Zn 2SiO 4:Mn | 0.226 | 0.710 | 1.00 | ||
| Fluor a | 0.111 | 0.749 | 1.28 | ||
| Fluor b | Gd | 0.003 | 0.112 | 0.747 | 1.37 |
| Fluor c | Gd | 0.01 | 0.113 | 0.749 | 1.33 |
| Fluor d | Lu | 0.003 | 0.116 | 0.742 | 1.31 |
| Fluor e | Lu | 0.01 | 0.113 | 0.748 | 1.31 |
| Fluor f | Yb | 0.003 | 0.113 | 0.744 | 1.32 |
| Fluor g | Yb | 0.01 | 0.112 | 0.747 | 1.30 |
| Fluor h | Y | 0.003 | 0.115 | 0.743 | 1.29 |
| Fluor i | Y | 0.01 | 0.114 | 0.744 | 1.35 |
As can be seen from Figure 4, preferred: as in the time of Gd, to be 0.0001～0.02 scope; In the time of Lu, be 0.0001～0.03 scope; In the time of Yb, be 0.0001～0.015 scope; In the time of Y, be 0.0001～0.05 scope.And the tristimulus coordinates of the fluor b～i in the x scope of the present invention is also than (Zn, Mn)
2SiO
4(0.226,0.710) more approach green (about 0.08,0.83), be (0.112～0.116,0.742～0.749), can know that they are high color purities.
Embodiment 2
Utilize the raw material of following mol ratio, equally made fluor j～1 with embodiment 1.Fluor b is the same with embodiment 1.
[table 4]
| Raw material | Mol ratio | |||
| Fluor b | Fluor j | Fluor k | Fluor l | |
| BaCO 3 | 0.997 | 0.747 | 0.647 | 0.497 |
| Gd 2O 3 | 0.0015 | 0.0015 | 0.0015 | 0.0015 |
| |
0 | 0.25 | 0.35 | 0.50 |
| Al 2O 3 | 5 | 5 | 5 | 5 |
| ZnO | 0.97 | 0.97 | 0.97 | 0.97 |
| MnCO 3 | 0.03 | 0.03 | 0.03 | 0.03 |
| AlF 3 | 0.03 | 0.03 | 0.03 | 0.03 |
Measure the luminous quantity of fluor b and j～1, with (Zn, Mn)
2SiO
4Luminous quantity be 1 o'clock, this luminous quantity and (Zn, Mn)
2SiO
4Luminous quantity such as shown in Figure 5.And, in table 5, the tristimulus coordinates (x, y) and the luminous quantity of each fluor shown together.
[table 5]
| Gd (mol ratio) | Sr (mol ratio) | Tristimulus coordinates x | Tristimulus coordinates y | Luminous quantity | |
| Zn 2SiO 4:Mn | 0.226 | 0.710 | 1.00 | ||
| Fluor b | 0.003 | 0 | 0.112 | 0.747 | 1.37 |
| Fluor j | 0.003 | 0.25 | 0.115 | 0.749 | 1.38 |
| Fluor k | 0.003 | 0.35 | 0.118 | 0.748 | 1.40 |
| Fluor l | 0.003 | 0.50 | 0.115 | 0.757 | 1.34 |
Can know from Fig. 5,, can further increase luminous quantity because contain Sr.Especially, can significantly increase luminous quantity by contain Sr in 0～0.45 scope.
And the tristimulus coordinates of fluor j～1 is also than (Zn, Mn)
2SiO
4(0.226,0.710) more approach green (about 0.08,0.83), be (0.115～0.118,0.748～0.757), can know that they are high color purities.
Embodiment 3
Utilize fluor k[(Ba
0.647Gd
0.003Sr
0.35) (Zn
0.97Mn
0.03) Al
10O
17] and BAM, made the PDP of following formation.
The formation of PDP:
Show electrode width of transparent electrode: 280 μ m, bus electrode width 100 μ m
Discharging gap 100 μ m between show electrode
The height 100 μ m in next door
The arrangement pitches in next door (pitch) 360 μ m
The discharge gas of Ne-Xe (5%)
Gas pressure intensity 500Torr
The PDP that makes is put in the accelerated aging experiment, made it to light a lamp continuously 500 hours, measure the peak strength of each time of lighting a lamp.Peak strength when beginning lighting a lamp is as 1 o'clock, with resulting peak strength as relative peak intensity as shown in Figure 6.
Can understand that from Fig. 6 fluor k has longer life than BAM.
Utilizability on the industry
By utilizing the especially very superior green-emitting phosphor of excitation characteristic of the characteristics such as excitation of the present invention, briliancy, life-span, can improve the display characteristic of the display unit such as PDP, CRT, fluorescent display tube, x-ray pick-up tube.
Claims (5)
1. display unit is characterized in that:
Be the display unit that contains luminescent coating at least, wherein,
Described luminescent coating contains the green-emitting phosphor of representing with following general expression,
(A
1-xB
x)(Zn
1-yMn
y)Al
10O
17
(A is the element of selecting from Ca, Ba and Sr, and B is a rare earth element, and x is the number that satisfies 0.0001≤x≤0.1, and y is the number that satisfies 0.02≤y≤0.14).
2. display unit as claimed in claim 1 is characterized in that:
Described green-emitting phosphor is with (Ba
1-z-xSr
zB
x) (Zn
1-yMn
y) Al
10O
17(A, B, x and y are the same with the above definition, and z is the number that satisfies 0＜z＜1) expression.
3. display unit as claimed in claim 1 is characterized in that:
Described rare earth element is selected from Gd, Lu, Yb and Y.
4. display unit as claimed in claim 1 is characterized in that:
Described green-emitting phosphor is subjected to vacuum ultraviolet irradiation, sends green fluorescence.
5. green-emitting phosphor is characterized in that:
Described green-emitting phosphor represents with following general expression,
(A
1-xB
x)(Zn
1-yMn
y)Al
10O
17
(A is the element of selecting from Ca, Ba and Sr, and B is a rare earth element, and x is the number that satisfies 0.0001≤x≤0.1, and y is the number that satisfies 0.02≤y≤0.14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005800487914A CN101133136A (en) | 2005-02-28 | 2005-02-28 | Display equipment and green fluophor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005800487914A CN101133136A (en) | 2005-02-28 | 2005-02-28 | Display equipment and green fluophor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101133136A true CN101133136A (en) | 2008-02-27 |
Family
ID=39129821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800487914A Pending CN101133136A (en) | 2005-02-28 | 2005-02-28 | Display equipment and green fluophor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101133136A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103709678A (en) * | 2013-11-29 | 2014-04-09 | 佛山安亿纳米材料有限公司 | Light conversion film and preparation method thereof |
| CN104017575A (en) * | 2014-03-30 | 2014-09-03 | 上海应用技术学院 | Blue-green fluorescent powder and preparation method thereof |
| CN108484168A (en) * | 2018-03-27 | 2018-09-04 | 中国科学院上海硅酸盐研究所 | A kind of red, transparent fluorescence ceramics and preparation method thereof |
| CN110041921A (en) * | 2019-05-08 | 2019-07-23 | 南京邮电大学 | A kind of manganese ion activated green emitting phosphor and preparation method thereof |
-
2005
- 2005-02-28 CN CNA2005800487914A patent/CN101133136A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103709678A (en) * | 2013-11-29 | 2014-04-09 | 佛山安亿纳米材料有限公司 | Light conversion film and preparation method thereof |
| CN104017575A (en) * | 2014-03-30 | 2014-09-03 | 上海应用技术学院 | Blue-green fluorescent powder and preparation method thereof |
| CN108484168A (en) * | 2018-03-27 | 2018-09-04 | 中国科学院上海硅酸盐研究所 | A kind of red, transparent fluorescence ceramics and preparation method thereof |
| CN110041921A (en) * | 2019-05-08 | 2019-07-23 | 南京邮电大学 | A kind of manganese ion activated green emitting phosphor and preparation method thereof |
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