CN102618268B - Preparation method of aluminate-based long-afterglow luminous material - Google Patents
Preparation method of aluminate-based long-afterglow luminous material Download PDFInfo
- Publication number
- CN102618268B CN102618268B CN 201210069474 CN201210069474A CN102618268B CN 102618268 B CN102618268 B CN 102618268B CN 201210069474 CN201210069474 CN 201210069474 CN 201210069474 A CN201210069474 A CN 201210069474A CN 102618268 B CN102618268 B CN 102618268B
- Authority
- CN
- China
- Prior art keywords
- aluminate
- temperature
- add
- preparation
- mole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 title claims abstract description 64
- 150000004645 aluminates Chemical class 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 5
- 238000001354 calcination Methods 0.000 claims description 24
- 230000002688 persistence Effects 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 8
- 229910002651 NO3 Inorganic materials 0.000 claims description 6
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- 239000004202 carbamide Substances 0.000 claims description 6
- 238000005352 clarification Methods 0.000 claims description 6
- 238000005049 combustion synthesis Methods 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000004471 Glycine Substances 0.000 claims description 4
- 229910052779 Neodymium Inorganic materials 0.000 claims description 4
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000013078 crystal Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000009841 combustion method Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000000227 grinding Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000010532 solid phase synthesis reaction Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 238000003837 high-temperature calcination Methods 0.000 description 3
- 238000003836 solid-state method Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Images
Landscapes
- Luminescent Compositions (AREA)
Abstract
The invention belongs to the technical field of luminous materials, and relates to a preparation method of an aluminate-based long-afterglow luminous material. The chemical characteristic expression formula of the aluminate-based long-afterglow luminous material is shown in the specifications. A low-temperature combustion method and a high-temperature solid phase method are comprehensively applied to the preparation and production of the aluminate-based long-afterglow luminous material, so that the defects of incomplete crystalizing process of a product obtained in the low-temperature combustion method and poor luminous performance are overcome, and the problems of high reaction temperature, high production period, high energy consumption, blocky form high hardness of an obtained product, damage to a crystal form in a smashing process, severe deterioration of luminous performance and the like are solved; a dispersing way of ultrasonic combined constant-temperature strong stirring is adopted in a raw material mixing process, so that the raw material mixing uniformity is enhanced effectively, and a combustion reaction process is more complete; and meanwhile, a grinding procedure is added between a low-temperature combustion reaction and a high-temperature roasting procedure simultaneously, so that the aluminate-based long-afterglow luminous material with small powder granularity is obtained.
Description
Technical field
That the present invention relates to is a kind of preparation method's of long after glow luminous material, particularly a kind of aluminate long after glow luminous material preparation method, belongs to the luminescent material technical field.
Background technology
The present industrialized preparing process of aluminate long after glow luminous material is generally high temperature solid-state method.The technical problem that this method exists has: the synthesis temperature height, and energy consumption is big; Raw material is difficult to mix, and pulverizing, process of lapping destroy crystal formation and introduce impurity, and luminescent properties is worsened; Product hardness height, crystal grain is thick; Production cycle is grown (about 3～5 days) etc., with paint, the ink system instability of its preparation, and precipitation easily.
Summary of the invention
Technical problem to be solved by this invention is at overcoming the deficiencies in the prior art, provide a kind of production technique simple, the cycle is short, and cost is low, energy consumption is low, and can improve the method for the low-temperature burning-high-temperature calcination synthesizing aluminate base long persistence luminescent material of product use properties.
Technical problem to be solved by this invention is to be achieved through the following technical solutions.The present invention is a kind of preparation method of aluminate base long persistence luminescent material, is characterized in:
The chemical feature expression formula of aluminate base long persistence luminescent material is
M is one or more among Sr, Ca, Ba, the Mg in the formula; RE can be among Dy, the Nd a kind of; Ln can be one or more among La, Dy, Nd, the Pr;
Mole,
Mole,
Mole,
Mole;
Its preparation methods steps is given:
(1) purity is not less than 99.99% high purity rare earth oxides Eu
2O
3, Dy
2O
3, Nd
2O
3, La
2O
3Or Pr
2O
3In one or more according to the accurate weighing of described stoichiometric ratio, add excessive HNO
3, be heated to 60 ℃～70 ℃ dissolvings after, with analytically pure M (NO
3)
2And Al (NO
3)
39H
2The mol ratio that O presses 1:2 adds solution, and M is one or more among Sr, Ca, Ba, the Mg, adds solubility promoter H simultaneously
3BO
3, H
3BO
3Add-on be 5%～20% of quality of material, in material, add incendiary material again, the add-on of incendiary material and the mol ratio of the nitrate in the material are 1～6:1, incendiary material is selected from a kind of in urea, the glycine, add deionized water again, under 70 ℃～90 ℃, utilize ultrasonic involving to stir acting in conjunction and make the solution becomes clarification, guarantee that material dissolves fully and mixes;
(2) solution is put into 120 ℃ loft drier be evaporated to contain amount of water after, immigration has been heated in 500 ℃～700 ℃ the high-temperature electric resistance furnace fast, combustion synthesis reaction is carried out in insulation under air atmosphere, is cooled to the spumescence product that room temperature obtains short texture;
(3) the spumescence product is ground the acquisition ultrafine powder, put into calcining furnace then,, adopt 90%N in the calcination process at 900 ℃～1250 ℃ temperature lower calcination 1h～2h
2With 10%H
2That forms is mixed gas protected, and gas flow is 50ml/min Kg;
(4) after calcining finishes, be under the 20ml/min Kg condition at the shielding gas flow velocity, calcinate is cooled to 500 ℃ after, stop to feed shielding gas, continue to naturally cool to room temperature, promptly obtain aluminate long after glow luminous material behind the product porphyrize that will obtain.
The present invention compared with prior art has the following advantages:
(1) the present invention with low-temperature combustion method and high temperature solid-state method integrated application in preparation, produce the aluminate base long persistence luminescent material.It is incomplete that novel process of the present invention has promptly overcome low-temperature combustion method products therefrom crystallization process, the shortcoming of luminescent properties difference, temperature of reaction height, the production cycle that has solved high temperature solid-state method again is long, energy consumption is high, products therefrom is that bulk and hardness are big, crushing process destroys crystal formation, cause problems such as luminescent properties severe exacerbation, for the preparation production technique of optimizing aluminate based luminescent material has been opened up new approach.
(2) the present invention has adopted ultrasonic wave in conjunction with the powerful dispersing mode that stirs of constant temperature in raw material mixing process, has improved raw material blended homogeneity effectively, makes the combustion reactions process more perfect.
(3) the present invention has increased grinding step in the low-temperature burning reaction between the high-temperature calcination operation, avoid the sintering of powder in the high-temperature calcination treating processes effectively, grown up, and then obtained the aluminate base long persistence luminescent material of powder size tiny (0.5～2 μ m).
(4) the fluorescent material powder hardness that the present invention obtained is little, fine size, crystallization degree height, complete in crystal formation, luminescent properties excellence, and powder surface is mellow and full, sphericity is high, can be advantageously applied to fields such as printing, luminous ornament, artwork and various noctilucence marks.
Description of drawings:
Fig. 1 prepares for the present invention
The emmission spectrum figure of luminescent material;
Fig. 2 prepares for the present invention
The emmission spectrum figure of luminescent material.
Embodiment
The following examples are unrestricted the present invention in order further to illustrate technological process feature of the present invention.
Embodiment 1, a kind of preparation method of aluminate base long persistence luminescent material, and its chemical feature expression formula is:
In the formula:
M is one or more among Sr, Ca, Ba, the Mg; RE can be among Dy, the Nd a kind of; Ln can be one or more among La, Dy, Nd, the Pr;
Mole,
Mole,
Mole,
Mole.
Its preparation methods steps is as follows:
(1) purity is not less than 99.99% high purity rare earth oxides Eu
2O
3, Dy
2O
3, Nd
2O
3, La
2O
3Or Pr
2O
3In one or more according to the accurate weighing of described stoichiometric ratio, add excessive HNO
3, be heated to 60 ℃ of dissolvings after, with analytically pure M (NO
3)
2And Al (NO
3)
39H
2The mol ratio that O presses 1:2 adds solution, and M is one or more among Sr, Ca, Ba, the Mg, adds solubility promoter H simultaneously
3BO
3, H
3BO
3Add-on be 5% of quality of material, in material, add incendiary material again, the add-on of incendiary material and the mol ratio of the nitrate in the material are 1:1, incendiary material is selected from a kind of in urea, the glycine, add deionized water again, under 70 ℃, utilize ultrasonic involving to stir acting in conjunction and make the solution becomes clarification, guarantee that material dissolves fully and mixes;
(2) solution is put into 120 ℃ loft drier be evaporated to contain amount of water after, immigration has been heated in 500 ℃ the high-temperature electric resistance furnace fast, combustion synthesis reaction is carried out in insulation under air atmosphere, is cooled to the spumescence product that room temperature obtains short texture;
(3) the spumescence product is ground the acquisition ultrafine powder, put into calcining furnace then,, adopt 90%N in the calcination process at 900 ℃ of temperature lower calcination 1h
2With 10%H
2That forms is mixed gas protected, and gas flow is 50ml/min Kg;
(4) after calcining finishes, be under the 20ml/min Kg condition at the shielding gas flow velocity, calcinate is cooled to 500 ℃ after, stop to feed shielding gas, continue to naturally cool to room temperature, promptly obtain aluminate long after glow luminous material behind the product porphyrize that will obtain.
Embodiment 2, and its chemical feature expression formula of a kind of preparation method of aluminate base long persistence luminescent material is:
In the formula:
M is one or more among Sr, Ca, Ba, the Mg; RE can be among Dy, the Nd a kind of; Ln can be one or more among La, Dy, Nd, the Pr;
Mole,
Mole,
Mole,
Mole.
Its preparation methods steps is as follows:
(1) purity is not less than 99.99% high purity rare earth oxides Eu
2O
3, Dy
2O
3, Nd
2O
3, La
2O
3Or Pr
2O
3In one or more according to the accurate weighing of described stoichiometric ratio, add excessive HNO
3, be heated to 70 ℃ of dissolvings after, with analytically pure M (NO
3)
2And Al (NO
3)
39H
2The mol ratio that O presses 1:2 adds solution, and M is one or more among Sr, Ca, Ba, the Mg, adds solubility promoter H simultaneously
3BO
3, H
3BO
3Add-on be 20% of quality of material, in material, add incendiary material again, the add-on of incendiary material and the mol ratio of the nitrate in the material are 6:1, incendiary material is selected from a kind of in urea, the glycine, add deionized water again, under 90 ℃, utilize ultrasonic involving to stir acting in conjunction and make the solution becomes clarification, guarantee that material dissolves fully and mixes;
(2) solution is put into 120 ℃ loft drier be evaporated to contain amount of water after, immigration has been heated in 700 ℃ the high-temperature electric resistance furnace fast, combustion synthesis reaction is carried out in insulation under air atmosphere, is cooled to the spumescence product that room temperature obtains short texture;
(3) the spumescence product is ground the acquisition ultrafine powder, put into calcining furnace then,, adopt 90%N in the calcination process at 1250 ℃ of temperature lower calcination 2h
2With 10%H
2That forms is mixed gas protected, and gas flow is 50ml/min Kg;
(4) after calcining finishes, be under the 20ml/min Kg condition at the shielding gas flow velocity, calcinate is cooled to 500 ℃ after, stop to feed shielding gas, continue to naturally cool to room temperature, promptly obtain aluminate long after glow luminous material behind the product porphyrize that will obtain.
Embodiment 3, a kind of preparation experiment one of aluminate base long persistence luminescent material.
Eu with purity 〉=99.99%
2O
3And Dy
2O
3Take by weighing 0.704g and 1.191g respectively, with 68% the HNO of 28g
3After heating (60 ℃) dissolving, with the Sr (NO of 21.164g
3)
2Al (NO with 75.026g
3)
39H
2O adds solution, adds 15% H simultaneously
3BO
3Solubility promoter is the mol ratio adding urea of 3:1 by incendiary material/nitrate then, adds the 500ml deionized water again, utilizes ultrasonic wave+brute force to stir under 80 ℃ and makes the solution becomes clarification; The loft drier of solution being put into 120 ℃ concentrates, and immigration has been heated in 500 ℃ the high-temperature electric resistance furnace fast then, and combustion synthesis reaction (time is about 10min) is carried out in insulation under air atmosphere, is cooled to the spumescence product that room temperature obtains short texture; The spumescence product is ground the acquisition ultrafine powder, put into calcining furnace then,, adopt 90%N in the calcination process at 1100 ℃ of calcining 1h
2～10%H
2Mixed gas protected, gas flow is 50ml/min Kg; After calcining finishes, be under the 20ml/min Kg condition at the shielding gas flow velocity, calcinate is cooled to 500 ℃ after, stop to feed shielding gas, continue to naturally cool to room temperature, be behind the product porphyrize that will obtain
Long after glow luminous material.This material appearance is faint yellow, behind ultraviolet ray or solar light irradiation, in the dark sends yellow-green light, and visual time of persistence is more than 30h; The main peak peak position that its emmission spectrum is is at 515nm, referring to accompanying drawing 1; The median size of powder is about 0.8 μ m, and has good dispersiveness.
Embodiment 4, a kind of preparation experiment two of aluminate base long persistence luminescent material.
Eu with purity 〉=99.99%
2O
3, Nd
2O
3, La
2O
3And Dy
2O
3Take by weighing 0.704g, 0.336g, 0.326g and 0.373g respectively, with 68% the HNO of 35g
3After heating (75 ℃) dissolving, with the Ca (NO of 23.615g
3)
24H
2Al (the NO of O and 75.026g
3)
39H
2O adds solution, adds 10% H simultaneously
3BO
3Solubility promoter is the mol ratio adding urea of 5:1 by incendiary material/nitrate then, adds the 500ml deionized water again, utilizes ultrasonic wave+brute force to stir under 70 ℃ and makes the solution becomes clarification; The loft drier of solution being put into 120 ℃ concentrates, and immigration has been heated in 600 ℃ the high-temperature electric resistance furnace fast then, and combustion synthesis reaction (time is about 10min) is carried out in insulation under air atmosphere, is cooled to the spumescence product that room temperature obtains short texture; The spumescence product is ground the acquisition ultrafine powder, put into calcining furnace then,, adopt 90%N in the calcination process at 1000 ℃ of calcining 1h
2～10%H
2Mixed gas protected, gas flow is 50ml/min Kg; After calcining finishes, be under the 20ml/min Kg condition at the shielding gas flow velocity, calcinate is cooled to 500 ℃ after, stop to feed shielding gas, continue to naturally cool to room temperature, be behind the product porphyrize that will obtain
Long after glow luminous material.This material appearance is white in color, and behind ultraviolet ray or solar light irradiation, in the dark sends blue light, and visual time of persistence is more than 10h; The main peak peak position that its emmission spectrum is is at 443nm, referring to accompanying drawing 2; The median size of powder is about 0.5 μ m, and has dispersed preferably.
Claims (1)
1. the preparation method of an aluminate base long persistence luminescent material is characterized in that:
Its chemical feature expression formula of described aluminate base long persistence luminescent material is:
In the formula:
M is one or more among Sr, Ca, Ba, the Mg; RE can be among Dy, the Nd a kind of; Ln can be one or more among La, Dy, Nd, the Pr;
Mole,
Mole,
Mole,
Mole;
Its preparation methods steps is as follows:
(1) purity is not less than 99.99% high purity rare earth oxides Eu
2O
3, Dy
2O
3, Nd
2O
3, La
2O
3Or Pr
2O
3In one or more according to the accurate weighing of described stoichiometric ratio, add excessive HNO
3, be heated to 60 ℃～70 ℃ dissolvings after, with analytically pure M (NO
3)
2And Al (NO
3)
39H
2The mol ratio that O presses 1:2 adds solution, and M is one or more among Sr, Ca, Ba, the Mg, adds solubility promoter H simultaneously
3BO
3, H
3BO
3Add-on be 5%～20% of quality of material, in material, add incendiary material again, the add-on of incendiary material and the mol ratio of the nitrate in the material are 1～6:1, incendiary material is selected from a kind of in urea, the glycine, add deionized water again, under 70 ℃～90 ℃, utilize ultrasonic involving to stir acting in conjunction and make the solution becomes clarification, guarantee that material dissolves fully and mixes;
(2) solution is put into 120 ℃ loft drier be evaporated to contain amount of water after, immigration has been heated in 500 ℃～700 ℃ the high-temperature electric resistance furnace fast, combustion synthesis reaction is carried out in insulation under air atmosphere, is cooled to the spumescence product that room temperature obtains short texture;
(3) the spumescence product is ground the acquisition ultrafine powder, put into calcining furnace then,, adopt 90%N in the calcination process at 900 ℃～1250 ℃ temperature lower calcination 1h～2h
2With 10%H
2That forms is mixed gas protected, and gas flow is 50ml/min Kg;
(4) after calcining finishes, be under the 20ml/min Kg condition at the shielding gas flow velocity, calcinate is cooled to 500 ℃ after, stop to feed shielding gas, continue to naturally cool to room temperature, promptly obtain aluminate long after glow luminous material behind the product porphyrize that will obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210069474 CN102618268B (en) | 2012-03-16 | 2012-03-16 | Preparation method of aluminate-based long-afterglow luminous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210069474 CN102618268B (en) | 2012-03-16 | 2012-03-16 | Preparation method of aluminate-based long-afterglow luminous material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102618268A CN102618268A (en) | 2012-08-01 |
| CN102618268B true CN102618268B (en) | 2013-07-31 |
Family
ID=46558485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210069474 Expired - Fee Related CN102618268B (en) | 2012-03-16 | 2012-03-16 | Preparation method of aluminate-based long-afterglow luminous material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102618268B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109177645A (en) * | 2018-09-13 | 2019-01-11 | 深圳市融远文化传媒有限公司 | A kind of printed matter with stereo-picture |
-
2012
- 2012-03-16 CN CN 201210069474 patent/CN102618268B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102618268A (en) | 2012-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Shikao et al. | Combustion synthesis of Eu3+ activated Y3Al5O12 phosphor nanoparticles | |
| Zhang et al. | Synthesis and luminescent properties of nanosized YVO4: Ln (Ln= Sm, Dy) | |
| Zhao et al. | Synthesis of Sr4Al14O25: Eu2+, Dy3+ phosphor nanometer powders by combustion processes and its optical properties | |
| Wang et al. | Luminescence properties of nanocrystalline YVO4: Eu3+ under UV and VUV excitation | |
| Yongqing et al. | Properties of red-emitting phosphors Sr2MgSi2O7: Eu3+ prepared by gel-combustion method assisted by microwave | |
| Durairajan et al. | Sol–gel synthesis and photoluminescence analysis of Sm3+: NaGd (WO4) 2 phosphors | |
| Zhang et al. | Effect of H3BO3 flux on the morphology and optical properties of Sr2MgAl22O36: Mn4+ red phosphors for agricultural light conversion films | |
| CN106281317B (en) | A kind of high brightness, bulky grain size beta-SiAlON:Eu2+Green emitting phosphor and preparation method thereof | |
| Zhang et al. | Preparation, characterization and luminescence of Sm3+ or Eu3+ doped Sr2CeO4 by a modified sol-gel method | |
| Xinyu et al. | A modified solution combustion method to superfine Gd2O3: Eu3+ phosphor: preparation, phase transformation and optical properties | |
| Wang et al. | 3D-hierachical spherical LuVO4: Tm3+, Dy3+, Eu3+ microcrystal: synthesis, energy transfer, and tunable color | |
| Yu et al. | Enhanced photoluminescence of Ba2GdNbO6: Eu3+/Dy3+ phosphors by Li+ doping | |
| Li et al. | Solvothermal synthesis and luminescent properties of YAG: Tb nano-sized phosphors | |
| Zhang et al. | Synthesis and characterization of BaMgAl10O17: Eu2+ phosphor prepared by homogeneous precipitation | |
| CN105272252B (en) | A kind of fluorite type Eu doping Y2Ce2O7 nano-ceramic pigments and preparation method | |
| Yu et al. | Color-tunable luminescence and energy transfer properties of Ca1. 5Sr1. 5 (PO4) 2: Dy3+, Tb3+ phosphor via hydrothermal synthesis | |
| Liu et al. | Spherical red-emitting X1-Y2SiO5: Eu and α-Y2Si2O7: Eu phosphors with high color purity: The evolution of morphology, phase and photoluminescence upon annealing | |
| Wang et al. | A garnet Ca2GdZr2Ga3O12: Cr3+ phosphor with ultra-broadband near-infrared luminesce for night-vision and biomedical imaging | |
| CN102874778A (en) | Method for preparing BCNO fluorescent powder by sintering precursors at low temperature | |
| Baldivia et al. | Physicochemical properties of Li3Ba2La3 (MoO4) 8: Eu, Tb red-emitting phosphor for solid state white lamps | |
| Deng et al. | A novel broad-band red K2MgSiO4: Eu2+ phosphor and defect-induced tunable emission from red to yellow | |
| Kang et al. | Critical synthesis parameters of β-phase Zn2SiO4: Mn2+ phosphor and its metastability | |
| Ali et al. | Synthesis and characterization of Y2O3: Eu3+ phosphors using the Sol-Combustion method | |
| Koparkar et al. | Aldo-keto synthesis effect on Eu3+ fluorescence in YBO3 compared with solid state diffusion | |
| CN102618268B (en) | Preparation method of aluminate-based long-afterglow luminous material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Feng Lichao Inventor after: Jin Jiajia Inventor before: Jin Jiajia Inventor before: Feng Lichao |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: JIN JIAJIA FENG LICHAO TO: FENG LICHAO JIN JIAJIA |
|
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU LIGANG RARE EARTH MATERIALS CO., LTD. Free format text: FORMER OWNER: LIANYUNGANG LIGANG RARE EARTH INDUSTRY CO., LTD. Effective date: 20130603 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 222000 LIANYUNGANG, JIANGSU PROVINCE TO: 222000 DONGHAI, JIANGSU PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20130603 Address after: Shang Zhuang Cun, Jiangsu province Donghai County 222000 Green Town Jiangsu Ligang Rare Earth Material Co. Applicant after: JIANGSU LIGANG RARE EARTH MATERIAL Co.,Ltd. Address before: The economic development zone of Jiangsu province Lianyungang City Lianyun District 222000 six road No. 10 Applicant before: LIANYUNGANG LIGANG RARE EARTH INDUSTRIAL Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU LIGANG SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER NAME: JIANGSU LIGANG RARE EARTH MATERIALS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Shang Zhuang Cun, Jiangsu province Donghai County 222000 Green Town Jiangsu Ligang Rare Earth Material Co. Patentee after: JIANGSU LIGANG SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: Shang Zhuang Cun, Jiangsu province Donghai County 222000 Green Town Jiangsu Ligang Rare Earth Material Co. Patentee before: JIANGSU LIGANG RARE EARTH MATERIAL Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Shang Zhuang Cun, Jiangsu province Donghai County 222000 Green Town Jiangsu Ligang Rare Earth Material Co. Patentee after: JIANGSU LIGANG RARE EARTH MATERIAL Co.,Ltd. Address before: Shang Zhuang Cun, Jiangsu province Donghai County 222000 Green Town Jiangsu Ligang Rare Earth Material Co. Patentee before: JIANGSU LIGANG SCIENCE AND TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 |