CN104910908B - Red fluorescent material for white light LED and preparation method thereof - Google Patents
Red fluorescent material for white light LED and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a red fluorescent material for a white light LED, which has a chemical formula of Ba3‑3xEu3xMgSb2O9Wherein x is Eu3+The doping mole percentage is that x is more than or equal to 0.0001 and less than or equal to 0.15. The luminescent material is prepared by taking novel antimonate as a matrix material and adopting a high-temperature solid-phase method or a chemical synthesis method, and the prepared red fluorescent powder can be excited by light with the wavelength within the range of 250-470 nanometers and emits red light with the main wavelength near 616 nanometers. The raw materials used in the invention are cheap and easily available, the preparation process is simple and flexible, the requirement on equipment is not high, the production cost is greatly reduced, and the method is suitable for large-scale production, energy-saving and environment-friendly; the prepared fluorescent powder has high purity, good crystallinity, stable performance, excellent luminous performance and stronger visible light transmission, and has wide application prospect in the field of LED illumination.
Description
Technical field
The present invention relates to a kind of luminescent material and preparation method thereof, particularly to a kind of white light LEDs red fluorescence material and system thereof
Preparation Method, belongs to luminescent material technical field.
Background technology
Since 21 century, the topic that energy-conservation and environmental protection always Sustainable Socioeconomic Development is talked about.Compared to traditional joint
Can for lamp, white light LEDs by feat of energy-efficient, stable performance, length in service life, to the advantages such as environment not pollution, quilt
It is described as the green light source of 21st century, becomes one of focus of people's research in lighting field.
The white light LEDs commonly used in the market mainly with the fluorescent material of blue-light LED chip collocation YAG:Ce, passes through
Excite YAG:Ce to launch what gold-tinted and blue light realized, but owing to it lacks red color light component, cause its colour developing to refer to
Number ratio is relatively low, and color reducibility is poor, and colour temperature is higher.It is in numerous lamp red fluorescence powders, real practicality and few,
The red fluorescence powder that effectively can be excited by black light is little, after particularly comprehensive its physical chemistry, luminous efficiency, heat endurance,
The red fluorescence powder that can be used near ultraviolet white light LEDs the most more lacks；Meanwhile, existing commercial fluorescent material is many with sulfide, halogenation
Thing is matrix, and the preparation method of these materials is much more complicated and not environmentally, therefore develops the high efficiency red phosphor of good combination property
Material becomes the focus of research the most both at home and abroad.
Summary of the invention
The deficiency existed for above-mentioned prior art, it is an object of the invention to provide a kind of preparation manipulation simple and flexible, luminous efficiency
Height, good stability and environment amenable white light LEDs red fluorescence material and preparation method thereof.
For achieving the above object, the technical solution used in the present invention is: provide a kind of white light LEDs red fluorescence material, chemistry
Formula is Ba3-3xEu3xMgSb2O9, wherein x is Eu3+The mole percent of doping, 0.0001≤x≤0.15.
Present invention simultaneously provides the preparation method of above-mentioned white light LEDs red fluorescence material, use high temperature solid-state method to prepare, including
Following steps:
(1) with containing barium ions Ba2+Compound, containing europium ion Eu3+Compound, containing magnesium ion Mg2+Chemical combination
Thing, containing antimony ion Sb5+Compound be raw material, by chemical formula Ba3-3xEu3xMgSb2O9The stoichiometric proportion of middle corresponding element
Weigh each raw material, wherein 0.0001≤x≤0.15, grind and mix, obtain mixture；
(2) being placed in Muffle furnace by mixture, in air atmosphere precalcining, precalcining temperature is 500～900 DEG C, precalcining
Time 2～16 hours；
(3) mixture that step (2) obtains is naturally cooled to room temperature, grinds and mix, be again placed in Muffle furnace,
Air atmosphere is calcined, calcining heat 900～1500 DEG C, calcination time 1～12 hours, naturally cool to room temperature, grind
Luminescent material is obtained after Jun Yun.
Preferably, in the step (2) of high temperature solid-state method of the present invention, precalcining temperature is 550～850 DEG C, the precalcining time be 3～
12 hours.
Preferably, step (3) calcining heat of high temperature solid-state method of the present invention is 950～1400 DEG C, and calcination time is 2～9 little
Time.
In the technical scheme of high temperature solid-state method of the present invention, containing barium ions Ba2+Compound be barium monoxide, barium chloride, barium nitrate,
One in brium carbonate, barium hydroxide；Containing europium ion Eu3+Compound be the one in europium oxide, europium nitrate；Containing magnesium
ION Mg2+Compound be the one in magnesia, magnesium chloride, magnesium nitrate, basic magnesium carbonate；Containing antimony ion Sb5+Change
Compound is the one in antimony pentoxide, antimony chloride or antimony sulfate.
The present invention provides above-mentioned white light LEDs red fluorescence material another kind preparation method the most simultaneously, uses chemical synthesis legal system
Standby, comprise the steps:
(1) with containing barium ions Ba2+Compound, containing europium ion Eu3+Compound, containing magnesium ion Mg2+Chemical combination
Thing, containing antimony ion Sb5+Compound be raw material, by chemical formula Ba3-3xEu3xMgSb2O9The stoichiometric proportion of middle corresponding element
Weighing each raw material, wherein x is Eu3+The mole percent of doping, 0.0001≤x≤0.15, water-soluble with dust technology and deionization respectively
Solving each raw material, then add complexing agent respectively by the 0.5～2.0wt% of each material quality, stir, described complexing agent is lemon
Acid or oxalic acid；
(2) each solution that step (1) obtains is slowly mixed together uniformly, under the temperature conditions of 50～80 DEG C, then stirs 1～2
Hour, stand, dry after obtain bulk presoma；
(3) presoma that step (2) obtains being placed in Muffle furnace calcining, calcining heat is 500～1000 DEG C, calcination time
2～10 hours, naturally cool to room temperature, after grinding uniformly, obtain luminescent material.
Preferably, the calcining heat of the step (3) of chemical synthesis of the present invention is 600～900 DEG C, and calcination time is 3～9 little
Time.
In the technical scheme of chemical synthesis of the present invention, containing barium ions Ba2+Compound be barium monoxide, barium chloride, barium nitrate,
One in brium carbonate, barium hydroxide；Containing europium ion Eu3+Compound be the one in europium oxide, europium nitrate；Containing magnesium
ION Mg2+Compound be the one in magnesia, magnesium chloride, magnesium nitrate, basic magnesium carbonate；Containing antimony ion Sb5+Change
Compound is the one in antimony pentoxide, antimony chloride or antimony sulfate.
Compared with prior art, present invention have the advantage that
1, the red fluorescence material that the present invention provides is using the stibate of stable chemical nature as host material, and it is in black light district
There is good charge-transfer absorption band, after exciting, the energy of absorption passed to the rare earth ion being entrained in barium magnesium stibate,
Its antimony acid radical anion can sufficiently meet the fluorescent material requirement to light transmission.The material purity of the present invention is high, can be by wavelength
Light in 250～470 nanometer range excites, and launches the main peak ruddiness at 616 nm, and colourity is pure, stable performance,
Can apply in novel white-light LED.
2, the present invention provide red fluorescence material preparation process simple and flexible, favorable repeatability, and whole during be not required to reduction
Property atmosphere protection, therefore reduces energy consumption, and less demanding for equipment, and cheaper starting materials is easy to get, and has been greatly reduced production
Cost, relative to fluorescent material such as sulfide, halide bases, more environmentally-friendly.
Accompanying drawing explanation
Fig. 1 is the X-ray powder diffraction pattern of the sample prepared by the embodiment of the present invention 1 technical scheme；
Fig. 2 is the scanning electron microscope diagram spectrum of the sample prepared by the embodiment of the present invention 1 technical scheme；
Fig. 3 is the exciting light spectrogram that the sample prepared by the embodiment of the present invention 1 technical scheme obtains under the light detection of 616 nanometers；
Fig. 4 is the sample prepared by the embodiment of the present invention 1 technical scheme luminescent spectrum figure under the light of 395 nanometers excites；
Fig. 5 be the sample prepared by the embodiment of the present invention 1 technical scheme be 395 nanometers in excitation wavelength, monitoring wavelength is 616
The decay of luminescence curve of nanometer；
Fig. 6 is the X-ray powder diffraction pattern of the sample prepared by the embodiment of the present invention 5 technical scheme；
Fig. 7 is the scanning electron microscope diagram spectrum of the sample prepared by the embodiment of the present invention 5 technical scheme；
Fig. 8 is the exciting light spectrogram that the sample prepared by the embodiment of the present invention 5 technical scheme obtains under the light detection of 615 nanometers；
Fig. 9 is the sample prepared by the embodiment of the present invention 5 technical scheme luminescent spectrum figure under the light of 395 nanometers excites；
Figure 10 be the sample prepared by the embodiment of the present invention 5 technical scheme be 395 nanometers in excitation wavelength, monitoring wavelength is 615
The decay of luminescence curve of nanometer.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment 1:
Preparation Ba2.7Eu0.3MgSb2O9, according to chemical formula Ba2.7Eu0.3MgSb2O9In the stoichiometric proportion of each element, claim respectively
Take brium carbonate BaCO3: 1.3321 grams, europium oxide Eu2O3: 0.1319 gram, MgO:0.1008 gram of magnesia, five oxidations two
Antimony Sb2O5: 0.8088 gram, after grinding in agate mortar and mixing, select air atmosphere in Muffle furnace at 850 DEG C
Precalcining 3 hours, naturally cools to room temperature, takes out sample；It is sufficiently mixed grinding uniformly, is again placed in Muffle furnace, at sky
Gas atmosphere, calcines 2 hours at 1400 DEG C, naturally cools to room temperature, is fully ground and uniformly i.e. obtains powder and send out after taking-up
Luminescent material.
Seeing accompanying drawing 1, it is the X-ray powder diffraction pattern that the present embodiment technical scheme prepares sample, and test result shows,
Occurring without other miscellaneous peak in figure, contrast with the card PDF#45-0898 of standard, the position of diffraction maximum and relative intensity are all and standard
Card is consistent, and prepared material principal phase is Ba3MgSb2O9, illustrating that the sample obtained by this example is pure thing phase, crystallinity is good
Good.
Seeing accompanying drawing 2, it is the scanning electron microscope diagram spectrum of sample as prepared by the present embodiment technical scheme, permissible from figure
Finding out, gained sample good crystallinity, particle is uniformly dispersed, and its average grain diameter is 7.60 microns.
Seeing accompanying drawing 3, it is the sample prepared by the present embodiment technical scheme exciting light spectrogram under the light detection of 616 nanometers,
As seen from the figure, this material well can be excited by wavelength light in 250～470 nanometer range.
Seeing accompanying drawing 4, it is the luminous light that the sample prepared by the present embodiment technical scheme obtains under the light of 395 nanometers excites
Spectrogram, as seen from the figure, this material can launch the dominant wavelength ruddiness at 616 nm.
See accompanying drawing 5, it be the sample prepared by the present embodiment technical scheme be 395 nanometers in excitation wavelength, monitoring wavelength is
The decay of luminescence curve of 616 nanometers, can be calculated die-away time is 1.37 milliseconds.
Embodiment 2:
Preparation Ba2.64Eu0.36MgSb2O9, according to chemical formula Ba2.64Eu0.36MgSb2O9In the stoichiometric proportion of each element, respectively
Weigh barium nitrate Ba (NO3)2: 1.7248 grams, europium oxide Eu2O3: 0.1584 gram, basic magnesium carbonate
4MgCO3·Mg(OH)2·5H2O:0.2429 gram, antimony pentoxide Sb2O5: 0.8088 gram, grind in agate mortar and mix
After closing uniformly, select air atmosphere in Muffle furnace at 900 DEG C precalcining 2 hours, naturally cool to room temperature, take out sample；
It is sufficiently mixed grinding uniformly, is again placed in Muffle furnace, among air atmosphere, calcine 1 hour at 1500 DEG C, cooling naturally
To room temperature, it is fully ground after taking-up and uniformly i.e. obtains powdered luminescent materials.
Sample prepared by the present embodiment, its primary structure pattern, excitation spectrum, emission spectrum and decay of luminescence curve and enforcement
Example 1 is similar.
Embodiment 3:
Preparation Ba2.55Eu0.45MgSb2O9, according to chemical formula Ba2.55Eu0.45MgSb2O9In the stoichiometric proportion of each element, respectively
Weigh BaO:0.9775 gram of barium monoxide, europium oxide Eu2O3: 0.1979 gram, MgO:0.1008 gram of magnesia, five oxidations two
Antimony Sb2O5: 0.8088 gram, after grinding in agate mortar and mixing, select air atmosphere in Muffle furnace at 500 DEG C
Precalcining 16 hours, naturally cools to room temperature, takes out sample；It is sufficiently mixed grinding uniformly, is again placed in Muffle furnace, at sky
Gas atmosphere, calcines 12 hours at 900 DEG C, naturally cools to room temperature, be fully ground and uniformly i.e. obtain powder after taking-up
Luminescent material.
Sample prepared by the present embodiment, its primary structure pattern, excitation spectrum, emission spectrum and decay of luminescence curve and enforcement
Example 1 is similar.
Embodiment 4:
Preparation Ba2.76Eu0.24MgSb2O9, according to chemical formula Ba2.76Eu0.24MgSb2O9In the stoichiometric proportion of each element, respectively
Weigh barium hydroxide Ba (OH)2: 1.1823 grams, europium oxide Eu2O3: 0.1055 gram, basic magnesium carbonate
4MgCO3·Mg(OH)2·5H2O:0.2429 gram, antimony pentoxide Sb2O5: 0.8088 gram, grind in agate mortar and mix
After closing uniformly, select air atmosphere in Muffle furnace at 550 DEG C precalcining 12 hours, naturally cool to room temperature, take out sample；
It is sufficiently mixed grinding uniformly, is again placed in Muffle furnace, among air atmosphere, calcine 9 hours at 950 DEG C, cooling naturally
To room temperature, it is fully ground after taking-up and uniformly i.e. obtains powdered luminescent materials.
Sample prepared by the present embodiment, its primary structure pattern, excitation spectrum, emission spectrum and decay of luminescence curve and enforcement
Example 1 is similar.
Embodiment 5:
Preparation Ba2.85Eu0.15MgSb2O9, according to chemical formula Ba2.85Eu0.15MgSb2O9In the stoichiometric proportion of each element, respectively
Weigh barium chloride BaCl2: 1.4836 grams, europium nitrate Eu (NO3)3·6H2O:0.1267 gram, magnesium nitrate Mg (NO3)2·6H2O:
0.6410 gram, antimony chloride SbCl3: 1.1416 grams, then weigh the citric acid of above each material quality 2.0wt% respectively.Use respectively
Appropriate deionized water and dilute nitric acid dissolution above-mentioned raw materials, be separately added into the citric acid weighed the most again and be complexed, stir；
The solution that above-mentioned complexing is good is uniformly mixed, is heated to 80 DEG C and stirs 1 hour, stand, dry after obtain bulk presoma；
Presoma is placed in Muffle furnace calcining, and calcining heat is 900 DEG C, and calcination time 3 hours naturally cools to room temperature, takes out
Rear grinding the most i.e. obtains powdered luminescent materials.
Seeing accompanying drawing 6, it is the X-ray powder diffraction pattern that the present embodiment technical scheme prepares sample, and test result shows,
Occurring without other miscellaneous peak in figure, contrast with the card PDF#45-0898 of standard, the position of diffraction maximum and relative intensity are all and standard
Card is consistent, and prepared material principal phase is Ba3MgSb2O9, illustrating that the sample obtained by this example is pure thing phase, crystallinity is good
Good.
Seeing accompanying drawing 7, it is the scanning electron microscope diagram spectrum of sample as prepared by the present embodiment technical scheme, permissible from figure
Finding out, gained sample particle is uniformly dispersed, and its average grain diameter is 1.45 microns.
Seeing accompanying drawing 8, it is the sample prepared by the present embodiment technical scheme exciting light spectrogram under the light detection of 615 nanometers,
Being found out by figure, this material well can be excited by wavelength light in 250～470 nanometer range.
Seeing accompanying drawing 9, it is the luminous light that the sample prepared by the present embodiment technical scheme obtains under the light of 395 nanometers excites
Spectrogram, by Tu Ke get, this material can launch the dominant wavelength ruddiness at 615 nm.
See accompanying drawing 10, it be the sample prepared by the present embodiment technical scheme be 395 nanometers in excitation wavelength, monitoring wavelength is
The decay of luminescence curve of 615 nanometers, can be calculated die-away time is 1.13 milliseconds.
Embodiment 6:
Preparation Ba2.94Eu0.06MgSb2O9, according to chemical formula Ba2.94Eu0.06MgSb2O9In the stoichiometric proportion of each element, respectively
Weigh barium hydroxide Ba (OH)2: 1.2594 grams, europium nitrate Eu (NO3)3·6H2O:0.0506 gram, magnesium chloride Mg Cl2·6H2O:
0.5080 gram, antimony sulfate Sb2(SO4)3: 1.3292 grams, then weigh the citric acid of above each material quality 0.5wt% respectively.Respectively
With appropriate deionized water and dilute nitric acid dissolution above-mentioned raw materials, being separately added into the citric acid weighed the most again and be complexed, stirring is all
Even；The solution that above-mentioned complexing is good is uniformly mixed, is heated to 50 DEG C and stirs 2 hours, stand, dry after obtain bulk before
Drive body；Presoma is placed in Muffle furnace calcining, and calcining heat is 1000 DEG C, and calcination time 2 hours naturally cools to room temperature,
Grind after taking-up and uniformly i.e. obtain powdered luminescent materials.
Sample prepared by the present embodiment, its primary structure pattern, excitation spectrum, emission spectrum and attenuation curve and embodiment 5
Similar.
Embodiment 7:
Preparation Ba2.97Eu0.03MgSb2O9, according to chemical formula Ba2.97Eu0.03MgSb2O9In the stoichiometric proportion of each element, respectively
Weigh barium nitrate Ba (NO3)2: 1.9404 grams, europium nitrate Eu (NO3)3·6H2O:0.0253 gram, magnesium nitrate Mg (NO3)2·6H2O:
0.6410 gram, antimony sulfate Sb2(SO4)3: 1.3292 grams, then weigh the oxalic acid of above each material quality 2.0wt% respectively.Use respectively
Appropriate deionized water and dilute nitric acid dissolution above-mentioned raw materials, be separately added into the oxalic acid weighed the most again and be complexed, stir；
The solution that above-mentioned complexing is good is uniformly mixed, is heated to 60 DEG C and stirs 1.5 hours, stand, dry after obtain bulk forerunner
Body；Presoma is placed in Muffle furnace calcining, and calcining heat is 500 DEG C, and calcination time 10 hours naturally cools to room temperature,
Grind after taking-up and uniformly i.e. obtain powdered luminescent materials.
Sample prepared by the present embodiment, its primary structure pattern, excitation spectrum, emission spectrum and attenuation curve and embodiment 5
Similar.
Embodiment 8:
Preparation Ba2.997Eu0.003MgSb2O9, according to chemical formula Ba2.997Eu0.003MgSb2O9In the stoichiometric proportion of each element,
Weigh barium nitrate Ba (NO respectively3)2: 1.9580 grams, europium nitrate Eu (NO3)3·6H2O:0.0025 gram, magnesium chloride Mg Cl2·6H2O:
0.5080 gram, antimony pentoxide Sb2O5: 0.8088 gram, then weigh the oxalic acid of above each material quality 0.5wt% respectively.Respectively
With appropriate deionized water and dilute nitric acid dissolution above-mentioned raw materials, it is separately added into the oxalic acid weighed the most again and is complexed, stir；
The solution that above-mentioned complexing is good is uniformly mixed, is heated to 60 DEG C and stirs 2 hours, stand, dry after obtain bulk presoma；
Presoma is placed in Muffle furnace calcining, and calcining heat is 650 DEG C, and calcination time 8 hours naturally cools to room temperature, takes out
Rear grinding the most i.e. obtains powdered luminescent materials.
Sample prepared by the present embodiment, its primary structure pattern, excitation spectrum, emission spectrum and attenuation curve and embodiment 5
Similar.
Embodiment 9:
Preparation Ba2.9997Eu0.0003MgSb2O9, according to chemical formula Ba2.9997Eu0.0003MgSb2O9In the stoichiometric proportion of each element,
Weigh barium chloride BaCl respectively2: 1.5616 grams, europium nitrate Eu (NO3)3·6H2O:0.0003, magnesium nitrate Mg (NO3)2·6H2O:
0.6410 gram, antimony pentoxide Sb2O5: 0.8088 gram, then weigh the citric acid of above each material quality 2.0wt% respectively.Point
Not with appropriate deionized water and dilute nitric acid dissolution above-mentioned raw materials, it is separately added into the citric acid weighed the most again and is complexed, stirring
Uniformly；The solution that above-mentioned complexing is good is uniformly mixed, is heated to 80 DEG C and stirs 2 hours, stand, dry after obtain bulk
Presoma；Presoma is placed in Muffle furnace calcining, and calcining heat is 600 DEG C, and calcination time 9 hours naturally cools to room
Temperature, grinds after taking-up and uniformly i.e. obtains powdered luminescent materials.
Sample prepared by the present embodiment, its primary structure pattern, excitation spectrum, emission spectrum and attenuation curve and embodiment 5
Similar.
Claims (8)
1. a white light LEDs red fluorescence material, it is characterised in that: chemical formula is Ba3-3xEu3xMgSb2O9, wherein x is
Eu3+The mole percent of doping, 0.0001≤x≤0.15.
2. the preparation method of a white light LEDs red fluorescence material as claimed in claim 1, it is characterised in that use height
Temperature solid phase method, comprises the steps:
(1) with containing barium ions Ba2+Compound, containing europium ion Eu3+Compound, containing magnesium ion Mg2+Chemical combination
Thing, compound containing antimony ion are raw material, by chemical formula Ba3-3xEu3xMgSb2O9The stoichiometric proportion of middle corresponding element weighs
Each raw material, wherein 0.0001≤x≤0.15, grind and mix, obtain mixture；
(2) being placed in Muffle furnace by mixture, in air atmosphere precalcining, precalcining temperature is 500～900 DEG C, precalcining
Time 2～16 hours；
(3) mixture that step (2) obtains is naturally cooled to room temperature, grinds and mix, be again placed in Muffle furnace,
Air atmosphere is calcined, calcining heat 900～1500 DEG C, calcination time 1～12 hours, naturally cool to room temperature, grind
Luminescent material is obtained after Jun Yun.
The preparation method of white light LEDs red fluorescence material the most according to claim 2, it is characterised in that: step (2)
Precalcining temperature be 550～850 DEG C, the precalcining time is 3～12 hours.
The preparation method of white light LEDs red fluorescence material the most according to claim 2, it is characterised in that: step (3)
Calcining heat be 950～1400 DEG C, calcination time is 2～9 hours.
The preparation method of white light LEDs red fluorescence material the most according to claim 2, it is characterised in that: described
Containing barium ions Ba2+Compound be the one in barium monoxide, barium chloride, barium nitrate, brium carbonate, barium hydroxide；Containing europium from
Sub-Eu3+Compound be the one in europium oxide, europium nitrate；Containing magnesium ion Mg2+Compound be magnesia, chlorination
One in magnesium, magnesium nitrate, basic magnesium carbonate；Compound containing antimony ion is antimony pentoxide, antimony chloride or sulfuric acid
One in antimony.
6. the preparation method of a white light LEDs red fluorescence material as claimed in claim 1, it is characterised in that employingization
Learn synthetic method, comprise the steps:
(1) with containing barium ions Ba2+Compound, containing europium ion Eu3+Compound, containing magnesium ion Mg2+Chemical combination
Thing, compound containing antimony ion are raw material, by chemical formula Ba3-3xEu3xMgSb2O9The stoichiometric proportion of middle corresponding element weighs
Each raw material, wherein x is Eu3+The mole percent of doping, 0.0001≤x≤0.15, water-soluble with dust technology and deionization respectively
Solve each raw material, then add complexing agent respectively by the 0.5～2.0wt% of each material quality, stir, described complexing
Agent is citric acid or oxalic acid；
(2) each solution that step (1) obtains is slowly mixed together uniformly, then under the temperature conditions of 50～80 DEG C stir 1～
2 hours, stand, dry after obtain bulk presoma；
(3) presoma that step (2) obtains being placed in Muffle furnace calcining, calcining heat is 500～1000 DEG C, calcination time
2～10 hours, naturally cool to room temperature, after grinding uniformly, obtain luminescent material.
The preparation method of white light LEDs red fluorescence material the most according to claim 6, it is characterised in that: step (3)
Calcining heat be 600～900 DEG C, calcination time is 3～9 hours.
The preparation method of white light LEDs red fluorescence material the most according to claim 6, it is characterised in that: described
Containing barium ions Ba2+Compound be the one in barium monoxide, barium chloride, barium nitrate, brium carbonate, barium hydroxide；Containing europium from
Sub-Eu3+Compound be the one in europium oxide, europium nitrate；Containing magnesium ion Mg2+Compound be magnesia, chlorination
One in magnesium, magnesium nitrate, basic magnesium carbonate；Compound containing antimony ion is antimony pentoxide, antimony chloride or sulfuric acid
One in antimony.
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| CN105419799B (en) * | 2015-12-23 | 2017-12-29 | 江苏师范大学 | Preparation method and application of material for converting near ultraviolet light to emit red fluorescence |
| CN105838368A (en) * | 2016-05-26 | 2016-08-10 | 江苏爱福特科技开发有限公司 | Fluorescent material for white light LED and preparation method of fluorescent material |
| CN106047345A (en) * | 2016-05-26 | 2016-10-26 | 江苏爱福特科技开发有限公司 | Red fluorescent material and preparation method thereof |
| CN109825296B (en) * | 2019-03-05 | 2021-03-02 | 常州工程职业技术学院 | Europium ion Eu3+Activated fluorine antimonate orange red fluorescent powder and preparation method thereof |
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| CN104277842A (en) * | 2013-07-12 | 2015-01-14 | 海洋王照明科技股份有限公司 | Europium-terbium-codoped titanium antimonate light-emitting film, and preparation method and application of europium-terbium-codoped titanium antimonate light-emitting film |
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| DE10259946A1 (en) * | 2002-12-20 | 2004-07-15 | Tews, Walter, Dipl.-Chem. Dr.rer.nat.habil. | Phosphors for converting the ultraviolet or blue emission of a light-emitting element into visible white radiation with very high color rendering |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2006068359A1 (en) * | 2004-12-22 | 2006-06-29 | Seoul Semiconductor Co., Ltd. | Light emitting device |
| CN104277842A (en) * | 2013-07-12 | 2015-01-14 | 海洋王照明科技股份有限公司 | Europium-terbium-codoped titanium antimonate light-emitting film, and preparation method and application of europium-terbium-codoped titanium antimonate light-emitting film |
| CN103627392A (en) * | 2013-11-19 | 2014-03-12 | 苏州大学 | Antimonate-based red phosphor powder and preparation method and application thereof |
| CN103865532A (en) * | 2014-03-31 | 2014-06-18 | 长安大学 | Double-ion-doped antimonate luminescent material and preparation method thereof |
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