CN108456523A - One plant growth LED light fluorescent powder and preparation method thereof - Google Patents
One plant growth LED light fluorescent powder and preparation method thereof Download PDFInfo
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- CN108456523A CN108456523A CN201810213344.9A CN201810213344A CN108456523A CN 108456523 A CN108456523 A CN 108456523A CN 201810213344 A CN201810213344 A CN 201810213344A CN 108456523 A CN108456523 A CN 108456523A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/70—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus
- C09K11/71—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus also containing alkaline earth metals
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7715—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing cerium
- C09K11/7723—Phosphates
- C09K11/7724—Phosphates with alkaline earth metals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
Abstract
The present invention relates to rare earth luminescent material technical fields.One plant growth LED light fluorescent powder, the fluorescent powder have following chemical representation：(Ba0.5‑x‑yMgy)M2(PO4)3：xMn2+, wherein any one in M Zr, Ce and Hf, x are that 0.001~0.1, y is 0.05~0.2.Fluorescent powder of the present invention be based on single-matrix can realize it is multicolor luminous, transmitting light be located at blue light, feux rouges and near infrared light region, be conducive to plant growth.
Description
Technical field
The present invention relates to rare earth luminescent material technical field, more particularly, to a plant growth LED light fluorescent powder and
Preparation method.
Background technology
Illumination is constantly subjected to the extensive concern of academic research person as the energy supply source of photosynthesis of plant.In recent years
Come, learns patients and be dedicated to studying influence of the different light medium to plant growth, to analyze the light of different light receptor absorption spectrums
Spectrum composition reaches the mesh for improving photosynthetic efficiency to find emission spectrum and the matched luminescent material of plant growth institute light requirement
's.Grind make internal disorder or usurp show blue light (400~500nm) can promote cauline leaf growth, feux rouges (600~800nm) can adjust blooming cycle,
Near infrared light (850~1100nm) has regulating and controlling effect in the growth of root and the absorption aspects of nutriment.If giving environment
One is artificially provided in controllable indoor implant system has blue, the photoemissive light source of red and near-infrared, will make wherein to plant
The growth conditions of organism reach best.In short, the spectral composition of artificial light source can be regulated and controled effectively to adjust plant
Morphogenesis and growth and development process, to achieve the purpose that improve crop yield and quality.Light conversion hysteria plant growth LED
Need to be excited the mixture or single-matrix multicolor phosphor of one-color fluorescence powder in lamp near ultraviolet or blue chip, these are glimmering
Light powder needs to have three conditions：First, having stronger absorption near ultraviolet or blue light region, that is to say, that its excitation spectrum will be with
Chip matches；Second is that blue light, feux rouges or near infrared light can be launched under the excitation of black light or blue light；Third, physics and change
Learn stability it is high, it is of low cost, be readily synthesized.
Invention content
The object of the present invention is to provide a kind of light emission luminance and luminous efficiency height, and physical and chemical performance is stablized, and emit light
It is located at blue light, feux rouges and near infrared light region, is conducive to plant growth LED light fluorescent powder and its preparation of plant growth
Method.
To achieve the above object, the technical solution used in the present invention is：One plant growth LED light fluorescent powder, should
Fluorescent powder has following chemical representation：(Ba0.5-x-yMgy)M2(PO4)3：xMn2+, wherein it is any one in M Zr, Ce and Hf
Kind, x is that 0.001~0.1, y is 0.05~0.2.
The preparation method of one plant growth LED light fluorescent powder, includes the following steps：
(1) with barium carbonate, magnesium carbonate, the oxide containing M, contain [PO4]3-Compound and manganese carbonate, by chemical expression
(Ba0.5-x-yMgy)M2(PO4)3：xMn2+, wherein any one in M Zr, Ce and Hf, x be 0.001~0.1, y be 0.05~
0.2, obtain mixture；(2) mixture is packed into crucible, is burnt under the conditions of 1300~1400 DEG C of protective atmosphere in high temperature furnace
Knot 2~4 hours, postcooling to room temperature obtain the plant growth LED light fluorescent powder.
Further, the compound containing M is any one in zirconium oxide, cerium oxide and hafnium oxide.
Further, described to contain [PO4]3-Compound is a kind of in diammonium hydrogen phosphate or ammonium dihydrogen phosphate.
Further, the protective atmosphere is nitrogen or argon gas atmosphere.
Compared with prior art, the beneficial effects of the invention are as follows：(1) fluorescent powder of the invention is using phosphate as matrix material
The advantages such as material has chemical stability good, and thermal stability is good, low in raw material price, rich reserves, and sintering temperature is low.Compared to sulphur
Compound fluorescent powder, thermal stability of the present invention are good.Compared to silicate fluorescent powder, grain graininess of the present invention is uniform, and sintering temperature is relatively low.
Compared to silicon substrate nitrogen (oxygen) compound fluorescent powder, synthesis technology of the present invention is simple, and sintering temperature is low and low in raw material price, reserves are rich
It is rich.Compared to aluminate fluorescent powder, preparation temperature of the present invention is low, and grain diameter is smaller, and light emission luminance and luminous efficiency are high, and physics
Stable chemical performance.(2) fluorescent powder of the present invention, which is based on single-matrix, can realize multicolor luminous, and transmitting light is located at blue light, red
Light and near infrared light region, are conducive to plant growth.
Description of the drawings
Fig. 1 is fluorescent powder exciting light spectrogram prepared by embodiment 1 provided by the invention.
Fig. 2 is fluorescent powder launching light spectrogram prepared by embodiment 1 provided by the invention.
Fig. 3 is fluorescent powder XRD spectrum and standard diagram prepared by embodiment 1 provided by the invention.
Specific implementation mode
This patent is described in detail with reference to the accompanying drawings and examples.
Embodiment 1
One plant growth LED light fluorescent powder, the fluorescent powder have following chemical representation：(Ba0.35Mg0.05)Zr2
(PO4)3：0.1Mn2+。
According to (Ba0.35Mg0.05)Zr2(PO4)3：0.1Mn2+Weigh BaCO3、MgCO3、ZrO2、(NH4)2HPO4And MnCO3, it
Between molar ratio be 0.35：0.05：2：3：0.1, it is fully ground after mixing, places in corundum crucible, place into height
It is roasted 2 hours at 1400 DEG C under nitrogen atmosphere in warm stove, is subsequently cooled to room temperature, obtain plant growth LED light fluorescent powder.
Fig. 1 is fluorescent powder exciting light spectrogram manufactured in the present embodiment, and 610 nanometers of supervisory wavelength can from Fig. 1
Go out, the fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak is located at 300nm and 360nm
Near, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Fig. 1 is fluorescence manufactured in the present embodiment
Powder launching light spectrogram, 350 nanometers of excitation wavelength, under the light excitation of 360nm, from figure 2 it can be seen that the present embodiment is glimmering
Light powder launches blue light, feux rouges and near infrared light, and emission peak is located near 450nm, 610 and 750nm, illustrates this reality
The fluorescent powder for applying example is suitble to do single-matrix multicolor phosphor.Fig. 3 is fluorescent powder XRD spectrum and standard drawing prepared by embodiment
Compose (ICSD：250171), from figure 3, it can be seen that the fluorescent powder XRD spectrum of the present embodiment shows the d values of product and relatively strong
Spend the Ba of variation tendency and standard0.5Zr2(PO4)3Standard card (JCPDF：250171) unanimously, illustrate the glimmering of the present embodiment synthesis
Light powder purity is higher.
Embodiment 2
According to (Ba0.2Mg0.2)Zr2(PO4)3：0.1Mn2+Weigh BaCO3、MgCO3、ZrO2、NH4H2PO4And MnCO3, they
Between molar ratio be 0.2：0.2：2：3：0.1, it is fully ground after mixing, places in corundum crucible, place into high temperature furnace
In roasted 4 hours at 1300 DEG C under argon gas, be subsequently cooled to room temperature, obtain plant growth LED light fluorescent powder.
The fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak be located at 300nm with
Near 360nm, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Under the light excitation of 360nm,
The fluorescent powder of the present embodiment launches blue light, feux rouges and near infrared light, and emission peak is located at 450nm, 610 and 750nm
Near, illustrate that the fluorescent powder of the present embodiment is suitble to do single-matrix multicolor phosphor.The fluorescent powder XRD spectrum of the present embodiment is shown
The Ba of the d values and relative intensity variation tendency and standard of product0.5Zr2(PO4)3Standard card (JCPDF：250171) it unanimously, says
The fluorescence powder purity of bright the present embodiment synthesis is higher.
Embodiment 3
According to (Ba0.449Mg0.05)Zr2(PO4)3：0.001Mn2+Weigh BaCO3、MgCO3、ZrO2、(NH4)2HPO4With
MnCO3, the molar ratio between them is 0.449：0.05：2：3：0.001, it is fully ground after mixing, places corundum crucible
In, it places into high temperature furnace and is roasted 2 hours at 1400 DEG C under nitrogen atmosphere, be subsequently cooled to room temperature, obtain plant growth LED
Lamp phosphor.
The fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak be located at 300nm with
Near 360nm, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Under the light excitation of 360nm,
The fluorescent powder of the present embodiment launches blue light, feux rouges and near infrared light, and emission peak is located at 450nm, 610 and 750nm
Near, illustrate that the fluorescent powder of the present embodiment is suitble to do single-matrix multicolor phosphor.The fluorescent powder XRD spectrum of the present embodiment is shown
The Ba of the d values and relative intensity variation tendency and standard of product0.5Zr2(PO4)3Standard card (JCPDF：250171) it unanimously, says
The fluorescence powder purity of bright the present embodiment synthesis is higher.
Embodiment 4
According to (Ba0.299Mg0.2)Zr2(PO4)3：0.001Mn2+Weigh BaCO3、MgCO3、ZrO2、NH4H2PO4And MnCO3, it
Between molar ratio be 0.299：0.2：2：3：0.001, it is fully ground after mixing, places in corundum crucible, place into
It is roasted 4 hours at 1300 DEG C under argon gas atmosphere in high temperature furnace, is subsequently cooled to room temperature, obtain plant growth LED light fluorescence
Powder.
The fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak be located at 300nm with
Near 360nm, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Under the light excitation of 360nm,
The fluorescent powder of the present embodiment launches blue light, feux rouges and near infrared light, and emission peak is located at 450nm, 610 and 750nm
Near, illustrate that the fluorescent powder of the present embodiment is suitble to do single-matrix multicolor phosphor.The fluorescent powder XRD spectrum of the present embodiment is shown
The Ba of the d values and relative intensity variation tendency and standard of product0.5Zr2(PO4)3Standard card (JCPDF：250171) it unanimously, says
The fluorescence powder purity of bright the present embodiment synthesis is higher.
Embodiment 5
According to (Ba0.299Mg0.1)Zr2(PO4)3：0.01Mn2+Weigh BaCO3、MgCO3、ZrO2、NH4H2PO4And MnCO3, it
Between molar ratio be 0.39：0.1：2：3：0.01, it is fully ground after mixing, places in corundum crucible, place into height
It is roasted 3 hours at 1350 DEG C under argon gas atmosphere in warm stove, is subsequently cooled to room temperature, obtain plant growth LED light fluorescent powder.
The fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak be located at 300nm with
Near 360nm, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Under the light excitation of 360nm,
The fluorescent powder of the present embodiment launches blue light, feux rouges and near infrared light, and emission peak is located at 450nm, 610 and 750nm
Near, illustrate that the fluorescent powder of the present embodiment is suitble to do single-matrix multicolor phosphor.The fluorescent powder XRD spectrum of the present embodiment is shown
The Ba of the d values and relative intensity variation tendency and standard of product0.5Zr2(PO4)3Standard card (JCPDF：250171) it unanimously, says
The fluorescence powder purity of bright the present embodiment synthesis is higher.
Embodiment 6
According to (Ba0.35Mg0.05)Ce2(PO4)3：0.1Mn2+Weigh BaCO3、MgCO3、CeO2、(NH4)2HPO4And MnCO3, it
Between molar ratio be 0.35：0.05：2：3：0.1, it is fully ground after mixing, places in corundum crucible, place into height
It is roasted 2 hours at 1400 DEG C under nitrogen atmosphere in warm stove, is subsequently cooled to room temperature, obtain plant growth LED light fluorescent powder.
The fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak be located at 300nm with
Near 360nm, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Under the light excitation of 360nm,
The fluorescent powder of the present embodiment launches blue light, feux rouges and near infrared light, and emission peak is located at 450nm, 610 and 750nm
Near, illustrate that the fluorescent powder of the present embodiment is suitble to do single-matrix multicolor phosphor.The fluorescent powder XRD spectrum of the present embodiment is shown
The Ba of the d values and relative intensity variation tendency and standard of product0.5Zr2(PO4)3Standard card (JCPDF：250171) it unanimously, says
The fluorescence powder purity of bright the present embodiment synthesis is higher.
Embodiment 7
According to (Ba0.2Mg0.2)Ce2(PO4)3：0.1Mn2+Weigh BaCO3、MgCO3、CeO2、NH4H2PO4And MnCO3, they
Between molar ratio be 0.2：0.2：2：3：0.1, it is fully ground after mixing, places in corundum crucible, place into high temperature furnace
In roasted 4 hours at 1300 DEG C under argon gas atmosphere, be subsequently cooled to room temperature, obtain plant growth LED light fluorescent powder.
The fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak be located at 300nm with
Near 360nm, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Under the light excitation of 360nm,
The fluorescent powder of the present embodiment launches blue light, feux rouges and near infrared light, and emission peak is located at 450nm, 610 and 750nm
Near, illustrate that the fluorescent powder of the present embodiment is suitble to do single-matrix multicolor phosphor.The fluorescent powder XRD spectrum of the present embodiment is shown
The Ba of the d values and relative intensity variation tendency and standard of product0.5Zr2(PO4)3Standard card (JCPDF：250171) it unanimously, says
The fluorescence powder purity of bright the present embodiment synthesis is higher.
Embodiment 8
According to (Ba0.449Mg0.05)Ce2(PO4)3：0.001Mn2+Weigh BaCO3、MgCO3、CeO2、(NH4)2HPO4With
MnCO3, the molar ratio between them is 0.449：0.05：2：3：0.001, it is fully ground after mixing, places corundum crucible
In, it places into high temperature furnace and is roasted 2 hours at 1400 DEG C under nitrogen atmosphere, be subsequently cooled to room temperature, obtain plant growth LED
Lamp phosphor.
The fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak be located at 300nm with
Near 360nm, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Under the light excitation of 360nm,
The fluorescent powder of the present embodiment launches blue light, feux rouges and near infrared light, and emission peak is located at 450nm, 610 and 750nm
Near, illustrate that the fluorescent powder of the present embodiment is suitble to do single-matrix multicolor phosphor.The fluorescent powder XRD spectrum of the present embodiment is shown
The Ba of the d values and relative intensity variation tendency and standard of product0.5Zr2(PO4)3Standard card (JCPDF：250171) it unanimously, says
The fluorescence powder purity of bright the present embodiment synthesis is higher.
Embodiment 9
According to (Ba0.299Mg0.2)Ce2(PO4)3：0.001Mn2+Weigh BaCO3、MgCO3、CeO2、NH4H2PO4And MnCO3, it
Between molar ratio be 0.299：0.2：2：3：0.001, it is fully ground after mixing, places in corundum crucible, place into
It is roasted 4 hours at 1300 DEG C under argon gas atmosphere in high temperature furnace, is subsequently cooled to room temperature, obtain plant growth LED light fluorescence
Powder.
The fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak be located at 300nm with
Near 360nm, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Under the light excitation of 360nm,
The fluorescent powder of the present embodiment launches blue light, feux rouges and near infrared light, and emission peak is located at 450nm, 610 and 750nm
Near, illustrate that the fluorescent powder of the present embodiment is suitble to do single-matrix multicolor phosphor.The fluorescent powder XRD spectrum of the present embodiment is shown
The Ba of the d values and relative intensity variation tendency and standard of product0.5Zr2(PO4)3Standard card (JCPDF：250171) it unanimously, says
The fluorescence powder purity of bright the present embodiment synthesis is higher.
Embodiment 10
According to (Ba0.35Mg0.05)Hf2(PO4)3：0.1Mn2+Weigh BaCO3、MgCO3、HfO2、(NH4)2HPO4And MnCO3, it
Between molar ratio be 0.35：0.05：2：3：0.1, it is fully ground after mixing, places in corundum crucible, place into height
It is roasted 2 hours at 1400 DEG C under nitrogen atmosphere in warm stove, is subsequently cooled to room temperature, obtain plant growth LED light fluorescent powder.
The fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak be located at 300nm with
Near 360nm, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Under the light excitation of 360nm,
The fluorescent powder of the present embodiment launches blue light, feux rouges and near infrared light, and emission peak is located at 450nm, 610 and 750nm
Near, illustrate that the fluorescent powder of the present embodiment is suitble to do single-matrix multicolor phosphor.The fluorescent powder XRD spectrum of the present embodiment is shown
The Ba of the d values and relative intensity variation tendency and standard of product0.5Zr2(PO4)3Standard card (JCPDF：250171) it unanimously, says
The fluorescence powder purity of bright the present embodiment synthesis is higher.
Embodiment 11
According to (Ba0.2Mg0.2)Hf2(PO4)3：0.1Mn2+Weigh BaCO3、MgCO3、HfO2、NH4H2PO4And MnCO3, they
Between molar ratio be 0.2：0.2：2：3：0.1, it is fully ground after mixing, places in corundum crucible, place into high temperature furnace
In roasted 4 hours at 1300 DEG C under argon gas atmosphere, be subsequently cooled to room temperature, obtain plant growth LED light fluorescent powder.
The fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak be located at 300nm with
Near 360nm, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Under the light excitation of 360nm,
The fluorescent powder of the present embodiment launches blue light, feux rouges and near infrared light, and emission peak is located at 450nm, 610 and 750nm
Near, illustrate that the fluorescent powder of the present embodiment is suitble to do single-matrix multicolor phosphor.The fluorescent powder XRD spectrum of the present embodiment is shown
The Ba of the d values and relative intensity variation tendency and standard of product0.5Zr2(PO4)3Standard card (JCPDF：250171) it unanimously, says
The fluorescence powder purity of bright the present embodiment synthesis is higher.
Embodiment 12
According to (Ba0.449Mg0.05)Hf2(PO4)3：0.001Mn2+Weigh BaCO3、MgCO3、HfO2、(NH4)2HPO4With
MnCO3, the molar ratio between them is 0.449：0.05：2：3：0.001, it is fully ground after mixing, places corundum crucible
In, it places into high temperature furnace and is roasted 2 hours at 1400 DEG C under nitrogen atmosphere, be subsequently cooled to room temperature, obtain plant growth LED
Lamp phosphor.
The fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak be located at 300nm with
Near 360nm, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Under the light excitation of 360nm,
The fluorescent powder of the present embodiment launches blue light, feux rouges and near infrared light, and emission peak is located at 450nm, 610 and 750nm
Near, illustrate that the fluorescent powder of the present embodiment is suitble to do single-matrix multicolor phosphor.The fluorescent powder XRD spectrum of the present embodiment is shown
The Ba of the d values and relative intensity variation tendency and standard of product0.5Zr2(PO4)3Standard card (JCPDF：250171) it unanimously, says
The fluorescence powder purity of bright the present embodiment synthesis is higher.
Embodiment 13
According to (Ba0.299Mg0.2)Hf2(PO4)3：0.001Mn2+Weigh BaCO3、MgCO3、HfO2、NH4H2PO4And MnCO3, it
Between molar ratio be 0.299：0.2：2：3：0.001, it is fully ground after mixing, places in corundum crucible, place into
It is roasted 4 hours at 1300 DEG C under argon gas atmosphere in high temperature furnace, is subsequently cooled to room temperature, obtain plant growth LED light fluorescence
Powder.
The fluorescent powder excitation spectrum of the present embodiment is a wide range, covers ultraviolet and violet region, excitation peak be located at 300nm with
Near 360nm, illustrate that the fluorescent powder of the present embodiment can effectively be excited by ultraviolet and purple light chip.Under the light excitation of 360nm,
The fluorescent powder of the present embodiment launches blue light, feux rouges and near infrared light, and emission peak is located at 450nm, 610 and 750nm
Near, illustrate that the fluorescent powder of the present embodiment is suitble to do single-matrix multicolor phosphor.The fluorescent powder XRD spectrum of the present embodiment is shown
The Ba of the d values and relative intensity variation tendency and standard of product0.5Zr2(PO4)3Standard card (JCPDF：250171) it unanimously, says
The fluorescence powder purity of bright the present embodiment synthesis is higher.
Above-described embodiment is used for illustrating the present invention, rather than limits the invention, the present invention spirit and
In scope of the claims, to any modifications and changes that the present invention makes, protection scope of the present invention is both fallen within.
Claims (5)
1. a plant growth LED light fluorescent powder, it is characterised in that the fluorescent powder has following chemical representation：(Ba0.5-x- yMgy)M2(PO4)3：xMn2+, wherein any one in M Zr, Ce and Hf, x are that 0.001~0.1, y is 0.05~0.2.
2. the preparation method of a plant growth LED light fluorescent powder, it is characterised in that include the following steps：
(1) with barium carbonate, magnesium carbonate, the oxide containing M, contain [PO4]3-Compound and manganese carbonate, by chemical expression (Ba0.5-x- yMgy)M2(PO4)3：xMn2+, wherein any one in M Zr, Ce and Hf, x are that 0.001~0.1, y is 0.05~0.2, are obtained
Mixture；(2) mixture is packed into crucible, sintering 2~4 is small under the conditions of 1300~1400 DEG C of protective atmosphere in high temperature furnace
When, postcooling to room temperature obtains the plant growth LED light fluorescent powder.
3. the preparation method of plant growth LED light fluorescent powder according to claim 2, it is characterised in that the chemical combination containing M
Object is any one in zirconium oxide, cerium oxide and hafnium oxide.
4. the preparation method of plant growth LED light fluorescent powder according to claim 2, it is characterised in that contain [PO4]3-Chemical combination
Object is a kind of in diammonium hydrogen phosphate or ammonium dihydrogen phosphate.
5. the preparation method of plant growth LED light fluorescent powder according to claim 2, it is characterised in that reducing atmosphere is nitrogen
Gas or argon gas atmosphere.
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|---|---|---|---|---|
| CN111200051A (en) * | 2018-11-16 | 2020-05-26 | 佛山市国星光电股份有限公司 | Lighting device |
| CN111653657A (en) * | 2020-07-08 | 2020-09-11 | 泉州市康电光电科技有限公司 | Illumination process for plant solar photosynthesis |
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