CN1737081A - Broad ultraviolet or yellow green light conversion to red blue light nanometer material and its preparation method - Google Patents
Broad ultraviolet or yellow green light conversion to red blue light nanometer material and its preparation method Download PDFInfo
- Publication number
- CN1737081A CN1737081A CN 200510026704 CN200510026704A CN1737081A CN 1737081 A CN1737081 A CN 1737081A CN 200510026704 CN200510026704 CN 200510026704 CN 200510026704 A CN200510026704 A CN 200510026704A CN 1737081 A CN1737081 A CN 1737081A
- Authority
- CN
- China
- Prior art keywords
- light
- silicon
- dioxide
- earth metal
- alkaline
- 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.)
- Granted
Links
Images
Landscapes
- Luminescent Compositions (AREA)
Abstract
The invention disclosed a nano material of ultraviolet light or chartreuse green light transforming to ren and blue light and method for preparing it, whose component (M1xSiyOz) is LN, M2m, and Rn. In the gentle condition, without ball grinding, the invention can makes ultra-fine highly effective transforming light material, which can eradiate orange red light in range of 580-620nm and blue light in range of 400-450nm after ultraviolet light in range of 200-400nm and chartreuse green light in range of 500-560 triggering. So the transforming light material make function transforming light membrane, which can absorb useless chartreuse green light and ultraviolet light destroying vegetation from sun and transform them to orange red light and blue light used by photosynthetic activity, and have good stability of chemistry and photology below 250 Deg.C, and is good membrane transforming light powdery material.
Description
Technical field
The present invention relates to a kind of rare earth luminescent material, relate in particular to a kind of UV-Vis selective light conversion nano material and preparation method thereof.
Background technology
UV-light, abbreviation UV, down together, visible light is called for short Vis, down together.
According to botanist research, royal purple light promotes mainly that with long wave ultraviolet light vegetal inspired becomes pigment, and directly influences plant to the absorption of phosphorus, micro-metals and vitamins D, cuticular formation etc.; Blue light promotes photosynthetic luminous energy; UV-light (＜350nm) plant-growth there is destruction; Green glow and gold-tinted then suppress the activity of chloroplast(id), and photosynthesis is descended; The orange red luminous energy that only strengthens photosynthesis of plant greatly, favourable plant-growth.Therefore, as far as possible with in the solar spectrum＜UV-light and the yellow green light about 550nm of 350nm be converted to blue light and orange red light, especially orange red light plays an important role for the output and the quality that promote plant-growth, improve farm crop.
The functional light-transferring plastic sheeting for farm use can effectively absorb in the sunlight to be had the yellow green light and the UV-light of destruction and converts thereof into photosynthesis of plant required orange red light and blue light growth and development of plants, not only can improve the canopy temperature, strengthen photosynthesis of plants, promote vine growth and development and nutrition absorption, can also improve crop quality, can obviously improve output and the quality of plant, be a kind of less than polluting highly effective " light fertilizer ".The gordian technique of optical transfer agricultural film is UV-light and yellow green light to be converted to the orange red light that can promote photosynthesis of plant required (580～650nm) and the light conversion agent of royal purple light (400-450nm).
Light conversion agent is mainly at present: organism (as reducing purple and 3b vat red 3b) and high-visibility pigment.Oxidation and decomposition take place mostly easily, and work-ing life is not long; It is single to change light color; Light decay is serious; Influence the light transmission features of plastic sheeting for farm use; To problem such as the absorption of sunlight and efficiency of conversion be not high.Inorganic commentaries on classics light luminescent material mainly is metallic sulfide and rare earth silicon aluminate, and energy consumption and cost height are not high to the utilising efficiency (UV-light of＜350nm and the yellow green light about 550nm) and the orange red fluorescence commentaries on classics optical efficiency about 580-620nm of sun power; With shortcoming such as the intermiscibility of plastic sheeting for farm use is bad.
Summary of the invention
The technical issues that need to address of the present invention are to disclose a kind of wide ultraviolet or yellow green light conversion to red blue light nanometer material and preparation method thereof, to overcome the above-mentioned defective that prior art exists.
Light-conversion nano material of the present invention, its composition is represented by following general formula:
(M1
xSi
yO
z):Ln
j，M2
m，R
n
0.5≤x≤2 0.5≤y≤2 1≤z≤7 0.01≤j≤0.15 0≤m≤0.110
-5≤n≤10
-3；
Wherein M1 represents metal and alkali earth metals such as yttrium, zirconium, vanadium, calcium, manganese, copper or zinc;
M2 represents alkali metals such as lithium, sodium or potassium;
Ln represents Eu, La, Dy, Pr, Ce, Nd, Sm, Gd, Tb, Er or Yb thulium;
R represents organic dye, preferred rhodamine, eosin or tonka bean camphor;
Preferred M1 is a yttrium, and M2 is a sodium, and Ln is Eu, and R is rhodamine B (C
28H
31ClN
2O
3) time the present invention have better illumination effect.
Light-conversion nano preparation methods of the present invention comprises the steps:
Rare earth ion, alkalimetal ion and alkaline-earth metal ions are joined in the colloidal solution in ethanol and silicon source, 60～70 ℃ of following stirring reactions 0.5～2 hour, underpressure distillation removes and desolvates under 70～85 ℃ of stirrings, obtain ultrafine powder, ultrafine powder 550～650 ℃ of following thermal treatments, is obtained elementary light conversion agent, then it is mixed with the ethanolic soln of organic dye, ultrasonic dispersing 5～30min, underpressure distillation under 70～85 ℃ of stirrings promptly obtains target product;
Silicon source wherein is selected from meso-porous titanium dioxide silica aerogel, tetraethoxy or water glass.
Said meso-porous titanium dioxide silica aerogel is a kind of commercial goods;
Said rare earth ion derives from the oxide compound of rare earth metal or the muriate of rare earth metal, as Eu
2O
3Or EuCl
3
Said alkalimetal ion derives from the muriate of alkali metal, as NaCl;
Said alkaline-earth metal ions derives from the oxide compound of alkaline-earth metal or the muriate of alkaline-earth metal, Y
2O
3Or YCl
3
In the aerocolloidal colloidal solution of ethanol and silicon-dioxide, the volumetric molar concentration of silicon-dioxide is 0.0005～0.0015 (mol/ml);
The mol ratio of silicon-dioxide and alkaline-earth metal ions is 1: 0.5～2.0;
The mol ratio of silicon-dioxide and rare earth ion is 1: 0.01～0.15;
The mol ratio of silicon-dioxide and alkalimetal ion is 1: 0.01～0.10;
The mol ratio of silicon-dioxide and organic dye is 1: 10
-4～10
-6
Preparation method's of the present invention two comprises the steps:
With aerosil, inorganic fluorescent powder and organic dye ethanolic soln, ultrasonic dispersing 5～30min, 60～85 ℃ of following underpressure distillation promptly obtain target product;
The quality percentage composition of silicon-dioxide is in this material: 85～95%
Inorganic fluorescent powder (Y
2O
3: quality percentage composition Eu) is: 5～15%
The quality percentage composition of organic dye is: 0.001～0.01%;
Said inorganic fluorescent powder is preparation like this:
Is to be dissolved in an amount of ethanolic soln at 1: 0.1: 0.1 the muriate of yttrium, europium and sodium according to mol ratio, stir under 65 ℃ and obtain clear solution, its underpressure distillation under 80 ℃ of stirrings is obtained powder except that desolvating, change in 600 ℃ of sintering 3h of retort furnace promptly getting fluorescent material then.
In light conversion agent of the present invention, rare earth ion is as luminescent activator, and silicate is as matrix and coating material, and organic dye is as sensitizing agent.Matrix silicate has very strong energy absorption at ultraviolet region, basic metal also can play good transmission ofenergy effect, make the luminous enhancing of rare earth ion, add organic dye and this system has good coordinating effect and sensibilized, cause this light conversion agent can effectively absorb sunlight medium ultraviolet light and yellow green light, and can excite orange red light about the strong 580-620nm of down emission and the blue light about 400-450nm at the yellow green light about 200-400nm UV-light and 500-560.
Adopt silicon-dioxide ethanol sol method among the present invention,, directly prepare ultra-fine efficient light-conversion powdered material without ball milling, and products obtained therefrom has very high chemistry and optical stability in conjunction with ultrasonic technique.Notable attribute is at SiO
2Add Eu in aerosol and the alcoholic acid colloidal solution
3+, Y
3+, rare earth ion and alkali (soil) metal ion are embedded SiO securely by ultrasonic wave
2Mesoporous in and react, ethanol is removed in underpressure distillation, at 600 ℃ of left and right sides sintering after 3 hours, need not can directly obtain the micro-solid powder by ball milling, luminous intensity obviously improves add the small amount of alkali metal in above-mentioned system after, and after adding micro-organic dye, product is obviously widened at ultraviolet region and yellow green light district absorption peak, the yellow green light of prepared light conversion agent about with 200-400nm UV-light and 500-560 excites down orange red light about the strong 580-620nm of emission and the blue light about 400-450nm, makes the functional light-transferring plastic sheeting for farm use and can effectively absorb in the sunlight growth and development of plants is had the yellow green light and the UV-light of destruction and converts thereof into photosynthesis of plant required orange red light and blue light.
Adopt silicon-dioxide ethanol sol method among the present invention, directly prepare ultra-fine high efficiency selected light conversion powdered material without ball milling, and products obtained therefrom has very high chemistry and optical stability.Reaction conditions gentleness, easy to control and technology is simpler, need not ball milling, be fit to industrial production, the reaction process solvent can reclaim and recycle, substantially do not have three-waste pollution, prepared light-converting powder and film product can excite orange red light about the very strong 580-620nm of down emission and the blue light about 400-450nm at the yellow green light about 200-400nm UV-light and 500-560nm.Yellow green light excitation intensity about 200-400nm UV-light, 500-560nm is very high, and is a very wide band(ed)spectrum, illustrates that sunlight medium ultraviolet light and yellowish green luminous energy are effectively absorbed.Orange red light about 580-620nm and the blue light strength height about 400-450nm are similarly a broadband spectral, are complementary with photosynthesis of plants spectrum, and be very favourable to photosynthesis of plants, and the range of application of plant is obviously increased.
Description of drawings
Fig. 1 is the TEM figure of sample.
Fig. 2 is the exciting light spectrogram of sample under the 585nm monitoring.
Fig. 3 for sample 263nm excite emmission spectrum figure.
The emmission spectrum that Fig. 4 excites at 305nm for sample.
The emmission spectrum that Fig. 5 excites at 350nm for sample.
The emmission spectrum that Fig. 6 excites at 550nm for sample.
Embodiment
Embodiment 1
With 3.77g Y
2O
3With 0.6336g Eu
2O
3Be dissolved in the concentrated nitric acid under the magnetic agitation, 70 ℃ of following underpressure distillation remove anhydrates and excessive nitric acid, add then 30ml ethanol stir clear solution, add 2.00 gram aerosils, 65 ℃ of lower magnetic forces stir 90min and get vitreosol, underpressure distillation is removed ethanol and is obtained powder solid under 80 ℃ of stirrings, changes 600 ℃ of sintering 3h of retort furnace over to and obtains primary products, then with the ethanolic soln (10 of its uniform mixing in the 30ml rhodamine B
-7Mol/ml) in, first ultrasonic dispersing 20min, underpressure distillation promptly obtains target product under 80 ℃ of stirrings.The TEM figure of sample sees Fig. 1, the exciting light spectrogram of sample under the 585nm monitoring seen Fig. 2, sample 263nm excite emmission spectrum figure see Fig. 3, sample is seen Fig. 4 at the emmission spectrum that 305nm excites, sample is seen Fig. 5 at the emmission spectrum that 350nm excites, and sample is seen Fig. 6 at the emmission spectrum that 550nm excites.
Embodiment 2
With 3.77g Y
2O
3With 0.6336g Eu
2O
3Be dissolved in the concentrated hydrochloric acid under the magnetic agitation, 80 ℃ of following underpressure distillation remove anhydrates and excessive hydrochloric acid, add then 30ml ethanol stir clear solution, add 2.00 gram aerosils, 65 ℃ of lower magnetic forces stir 10min, ultrasonic dispersing 20min then, stir 30min at 65 ℃ of lower magnetic forces and get vitreosol, underpressure distillation is removed ethanol and is obtained powder solid under 80 ℃ of stirrings, change 600 ℃ of sintering 3h of retort furnace over to and obtain primary products, then with the ethanolic soln (10 of its uniform mixing in the 30ml rhodamine B
-7Mol/ml) in, first ultrasonic dispersing 10min, decompression is steamed to slip and is promptly obtained target product under 80 ℃ of stirrings.
Embodiment 3
With 3.77g Y
2O
3With 0.6336g Eu
2O
3Be dissolved in the concentrated hydrochloric acid under the magnetic agitation, 70 ℃ of following underpressure distillation remove anhydrates and excessive hydrochloric acid, the ethanolic soln that adds 30mlNaCl (0.1955g) then, add 2.00 gram aerosils, 65 ℃ of lower magnetic forces stir 10min, ultrasonic dispersing 20min then, stir 30min at 65 ℃ of lower magnetic forces and get vitreosol, underpressure distillation is removed ethanol and is obtained powder solid under 80 ℃ of stirrings, change 600 ℃ of sintering 3h of retort furnace over to and obtain primary products, then with the ethanolic soln (10 of its uniform mixing in the 30ml rhodamine B
-7Mol/ml) in, first ultrasonic dispersing 10min, decompression is steamed to slip and is promptly obtained target product under 80 ℃ of stirrings.
Embodiment 4
With 3.77g Y
2O
3With 0.6336g Eu
2O
3Be dissolved in the concentrated nitric acid under the magnetic agitation, 70 ℃ of following underpressure distillation remove anhydrates and excessive nitric acid, the ethanolic soln that adds 30mlKCl (0.2487g) then, stir clear solution, add 2.00 gram aerosils, 65 ℃ of lower magnetic forces stir 10min, ultrasonic dispersing 20min then, stir 30min at 65 ℃ of lower magnetic forces and get vitreosol, underpressure distillation is removed ethanol and is obtained powder solid under 80 ℃ of stirrings, change 600 ℃ of sintering 3h of retort furnace over to and obtain primary products, then with the ethanolic soln (10 of its uniform mixing in the 30ml rhodamine B
-7Mol/ml) in, first ultrasonic dispersing 10min, decompression is steamed to slip and is promptly obtained target product under 80 ℃ of stirrings.
Embodiment 5
With 6.52gYCl
3, 0.93gEuCl
3Join in the 30ml ethanol with 0.1955g NaCl, stir clear solution, add 2.00 gram aerosils, 65 ℃ of lower magnetic forces stir 10min, ultrasonic dispersing 20min stirs 30min at 65 ℃ of lower magnetic forces and gets vitreosol then, and underpressure distillation is removed ethanol and obtained powder solid under 80 ℃ of stirrings, change 600 ℃ of sintering 3h of retort furnace over to and obtain primary products, then with the ethanolic soln (10 of its uniform mixing in the 30ml rhodamine B
-7Mol/ml) in, first ultrasonic dispersing 10min, decompression is steamed to slip and is promptly obtained target product under 80 ℃ of stirrings.
Embodiment 6
With 3.77g Y
2O
3With 0.6336g Eu
2O
3Be dissolved in the concentrated hydrochloric acid under the magnetic agitation, 70 ℃ of following underpressure distillation remove anhydrates and excessive hydrochloric acid, add the 30ml ethanolic soln, stir clear solution, add 2.00 gram aerosils, 65 ℃ of lower magnetic forces stir 10min, ultrasonic dispersing 20min then, stir 30min at 65 ℃ of lower magnetic forces and get vitreosol, underpressure distillation is removed ethanol and is obtained powder solid under 80 ℃ of stirrings, change 600 ℃ of sintering 3h of retort furnace over to and obtain primary products, then with the ethanolic soln (10 of its uniform mixing in the 30ml eosin
-7Mol/ml) in, first ultrasonic dispersing 10min, decompression is steamed to slip and is promptly obtained target product under 80 ℃ of stirrings.
Embodiment 7
The 0.85g aerosil is added in the 40ml ethanolic soln, stirring makes transparent colloidal solution, add previously prepared fluorescent material of 0.15g and 0.0007g rhodamine B then, ultrasonic dispersing 20min again behind the magnetic agitation 30min, underpressure distillation removes to desolvate and promptly obtains target product under 80 ℃ of stirrings then.
The preparation method of fluorescent material is as follows:
Is to be dissolved in an amount of ethanolic soln at 1: 0.1: 0.1 the muriate of yttrium, europium and sodium according to mol ratio, stir under 65 ℃ and obtain clear solution, its underpressure distillation under 80 ℃ of stirrings is obtained powder except that desolvating, change in 600 ℃ of sintering 3h of retort furnace promptly getting fluorescent material then.
Embodiment 8
The 0.85g aerosil is added in the 40ml ethanolic soln, stirring makes transparent colloidal solution, add previously prepared fluorescent material of 0.15g and 0.0011g eosin then, ultrasonic dispersing 20min again behind the magnetic agitation 30min, underpressure distillation goes out to desolvate and promptly obtains target product under 80 ℃ of stirrings then.
The preparation method of fluorescent material is the same.
Claims (7)
1. wide ultraviolet or yellow green light conversion to red blue light nanometer material is characterized in that its composition is represented by following general formula:
(Ml
xSi
yO
z)：Ln
j，M2
m，R
n
0.5≤x≤2 0.5≤y≤2 1≤z≤7 0.01≤j≤0.15 0≤m≤0.110-5≤n≤10-3；
Wherein M1 represents yttrium, zirconium, vanadium, calcium, manganese, copper or zinc metal and alkali earth metal;
M2 represents lithium, sodium or potash metallic element;
Ln represents Eu, La, Dy, Pr, Ce, Nd, Sm, Gd, Tb, Er or Yb thulium;
R represents organic dye.
2. light-conversion nano material according to claim 1 is characterized in that R is selected from rhodamine, eosin or tonka bean camphor.
3. light-conversion nano material according to claim 1 is characterized in that, M1 is a yttrium, and M2 is a sodium, and Ln is Eu, and R is a rhodamine.
4. according to claim 1,2 or 3 described light-conversion nano preparation methods, it is characterized in that, comprise the steps:
Rare earth ion, alkalimetal ion and alkaline-earth metal ions are joined in the colloidal solution in ethanol and silicon source, reacted 0.5～2 hour, underpressure distillation removes and desolvates, obtain ultrafine powder, ultrafine powder 550～650 ℃ of following thermal treatments, is obtained elementary light conversion agent, then it is mixed with the ethanolic soln of organic dye, ultrasonic dispersing, underpressure distillation removes and desolvates, and promptly obtains target product;
Said silicon source is selected from aerosil, tetraethoxy or water glass.
5. method according to claim 4, it is characterized in that, said rare earth ion derives from the oxide compound of rare earth metal or the muriate of rare earth metal, said alkalimetal ion derives from the muriate of alkali metal, and said alkaline-earth metal ions derives from the oxide compound of alkaline-earth metal or the muriate of alkaline-earth metal.
6. method according to claim 5 is characterized in that:
In the aerocolloidal colloidal solution of ethanol and silicon-dioxide, the volumetric molar concentration of silicon-dioxide is 0.0005～0.0015 (mol/ml);
The mol ratio of silicon-dioxide and alkaline-earth metal ions is 1: 0.5～2.0;
The mol ratio of silicon-dioxide and rare earth ion is 1: 0.01～0.15;
The mol ratio of silicon-dioxide and alkalimetal ion is 1: 0.01～0.10;
The mol ratio of silicon-dioxide and organic dye is 1: 10-4～10-6.
7. according to claim 1,2 or 3 described light-conversion nano preparation methods, it is characterized in that, comprise the steps:
With aerosil, inorganic fluorescent powder and organic dye uniform mixing in ethanolic soln, ultrasonic dispersing 10～30min, 70～85 ℃ of following underpressure distillation promptly obtain target product;
The quality percentage composition of silicon-dioxide is in this material: 85～95%
Inorganic fluorescent powder (Y
2O
3: quality percentage composition Eu) is: 5～15%
The quality percentage composition of organic dye is: 0.001～0.01%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100267047A CN100348692C (en) | 2005-06-13 | 2005-06-13 | Broad ultraviolet or yellow green light conversion to red blue light nanometer material and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100267047A CN100348692C (en) | 2005-06-13 | 2005-06-13 | Broad ultraviolet or yellow green light conversion to red blue light nanometer material and its preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1737081A true CN1737081A (en) | 2006-02-22 |
| CN100348692C CN100348692C (en) | 2007-11-14 |
Family
ID=36080033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100267047A Expired - Fee Related CN100348692C (en) | 2005-06-13 | 2005-06-13 | Broad ultraviolet or yellow green light conversion to red blue light nanometer material and its preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100348692C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008111878A3 (en) * | 2007-03-09 | 2009-04-02 | Victor Andreevich Vorobiev | Light-converting material and a composition for the production thereof |
| CN102206492A (en) * | 2011-03-23 | 2011-10-05 | 李迎九 | Special rare earth composite phosphor for three-band plant growth lamp and preparation method thereof |
| CN105623141A (en) * | 2015-06-11 | 2016-06-01 | 侯培毅 | Multifunctional agricultural light conversion net |
| CN105622981A (en) * | 2015-01-05 | 2016-06-01 | 侯培毅 | Preparation method for rare earth fluorescent auxiliary |
| CN111422911A (en) * | 2020-03-03 | 2020-07-17 | 西安集佰侬生物科技有限公司 | Nanometer material capable of promoting blue light reaction of plants, preparation and preparation method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3670504D1 (en) * | 1986-06-16 | 1990-05-23 | Agfa Gevaert Nv | METHOD FOR CONVERTING X-RAY RAYS. |
| US5391320A (en) * | 1989-08-28 | 1995-02-21 | Lockheed Missiles & Space Company, Inc. | Terbium activated silicate luminescent glasses |
| MY109224A (en) * | 1993-02-11 | 1996-12-31 | Samsung Display Devices Co Ltd | Mixed blue emitting phosphor. |
| CN1060500C (en) * | 1996-12-30 | 2001-01-10 | 中国科学院长春应用化学研究所 | Preparation of agricultural film rare-earth fluorescent powder changing agent |
| CN1176182C (en) * | 2000-08-10 | 2004-11-17 | 上海师范大学 | Multi-kernel rare-earth light-converting powder, its preparing process and its application |
-
2005
- 2005-06-13 CN CNB2005100267047A patent/CN100348692C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008111878A3 (en) * | 2007-03-09 | 2009-04-02 | Victor Andreevich Vorobiev | Light-converting material and a composition for the production thereof |
| CN102206492A (en) * | 2011-03-23 | 2011-10-05 | 李迎九 | Special rare earth composite phosphor for three-band plant growth lamp and preparation method thereof |
| CN102206492B (en) * | 2011-03-23 | 2013-10-30 | 李迎九 | Method for preparing special rare earth composite phosphor for three-band plant growth lamp |
| CN105622981A (en) * | 2015-01-05 | 2016-06-01 | 侯培毅 | Preparation method for rare earth fluorescent auxiliary |
| CN105622981B (en) * | 2015-01-05 | 2019-02-22 | 侯培毅 | A kind of preparation method of rare-earth fluorescent auxiliary agent |
| CN105623141A (en) * | 2015-06-11 | 2016-06-01 | 侯培毅 | Multifunctional agricultural light conversion net |
| CN111422911A (en) * | 2020-03-03 | 2020-07-17 | 西安集佰侬生物科技有限公司 | Nanometer material capable of promoting blue light reaction of plants, preparation and preparation method |
| CN111422911B (en) * | 2020-03-03 | 2023-08-22 | 西安集佰侬生物科技有限公司 | Nanometer material capable of promoting blue light reaction of plants, preparation and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100348692C (en) | 2007-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101338194B (en) | Rare-earth red fluorescent material and method for preparing same | |
| DE112011102173T5 (en) | Oxynitride phosphor, its production process and the light source made with such phosphor for lighting | |
| CN112251219B (en) | Moisture-resistant fluoride red fluorescent powder and preparation method thereof | |
| CN109874803B (en) | Fluorescent powder capable of promoting plant growth and preparation method thereof | |
| CN106566536A (en) | Red light-blue light dual-emission composited optical transfer material, and preparation method and application of red light-blue light dual-emission composited optical transfer material | |
| CN1737081A (en) | Broad ultraviolet or yellow green light conversion to red blue light nanometer material and its preparation method | |
| Jung et al. | Luminescence enhancement of Eu-doped calcium magnesium silicate blue phosphor for UV-LED application | |
| Xin et al. | Hydrothermal synthesis and multi-color photoluminescence of GdVO 4: Ln 3+(Ln= Sm, Dy, Er) sub-micrometer phosphors | |
| CN1290966C (en) | Rare earth nano silicate red phosphor and its preparation method | |
| CN101338188B (en) | Method for preparing long persistence luminescent material with high initial fluorescent intensity | |
| CN1288582A (en) | Method of preparing high brightness, small particle red emitting phosphor | |
| CN107824204A (en) | The preparation method of Efficient Z-type photochemical catalyst based on up-conversion luminescence | |
| Bharathi et al. | Turning of luminescence properties of Ba2V2O7 phosphors by co-doping Eu3+/Dy3+ ions | |
| CN101538466B (en) | Molybdate luminescent powder doped with rare earth ion and reparation method thereof | |
| CN102417815A (en) | Rare earth tungstate phosphor matrix, its preparation method and application | |
| CN101168666B (en) | Red phosphor powder used for white light LED and preparing method thereof | |
| CN107163941A (en) | A kind of alkaline-earth metal tungsten molybdate red phosphor and preparation method thereof | |
| CN111560247A (en) | Nitride fluorescent powder capable of emitting dark red light for agricultural illumination and preparation method thereof | |
| CN110511755A (en) | A kind of indigo plant is light activated to mix the molybdate red luminescent material of Mn4+ | |
| CN102391856A (en) | Blue fluorescent material and preparation method thereof | |
| CN109266348A (en) | A kind of up-conversion phosphor and its preparation method and application | |
| CN107686726A (en) | A kind of white light LEDs lithium fluorosilicate sodium red light material and preparation method thereof | |
| CN101050362A (en) | Red fluoresent material, and preparing technique | |
| CN110484247B (en) | Photochromic-adjustable rare earth ion-doped natural wollastonite luminescent material and preparation method and application thereof | |
| CN107267146A (en) | A kind of Mn4+Aluminate red nano-phosphor of titanium of ion doping and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20100613 |