CN110358537A - A kind of garnet fluorescent powder and preparation method thereof for LED plant growth lamp - Google Patents
A kind of garnet fluorescent powder and preparation method thereof for LED plant growth lamp Download PDFInfo
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- CN110358537A CN110358537A CN201910627112.2A CN201910627112A CN110358537A CN 110358537 A CN110358537 A CN 110358537A CN 201910627112 A CN201910627112 A CN 201910627112A CN 110358537 A CN110358537 A CN 110358537A
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- fluorescent powder
- plant growth
- growth lamp
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
- A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
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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
- C09K11/7708—Vanadates; Chromates; Molybdates; Tungstates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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Abstract
The invention discloses a kind of crimson fluorescent powder material for LED plant growth lamp, RX3(BO3)4:yCr；Wherein R is at least one of La, Lu, Gd, Y, Nd, at least one of X Al, Ga, Sc, wherein 0.005≤y≤0.2.The phosphor material powder is using following substances as raw material: the oxygenatedchemicals of Cr, the oxygenatedchemicals of La, Lu, Gd, Y, Nd, Al, Ga, Sc, H3BO3、B2O3One of, raw material is mixed directly rear calcination, or addition reaction flux, and raw material and fluxing agent are sufficiently mixed uniformly, by said mixture calcination；The post-treated process of firing product, that is, be fabricated to phosphor material powder.The present invention provides that a kind of chemical property is stable, phosphor material powder of good luminescence property, can effectively be excited by blue light (380-500nm), emit the dark red and near infrared light of 650nm~900nm range.The method of the phosphor material powder is simple, easily operated, pollution-free, at low cost.
Description
Technical field
The present invention relates to solid luminescent material technical field more particularly to a kind of it can be used for the dark red of LED plant growth lamp
Color phosphor material powder and preparation method thereof.
Background technique
Photosynthesis is one of plant growth and development essential condition.Studies have shown that green plants is to visible light
Absorption spectra it is essentially identical, be concentrated mainly on the purplish blue area of 400-500nm and the orange red area of 600nm-800nm.Dark blue light
(450nm) and feux rouges (660nm) can promote photosynthesis, and dark red light (730nm) can control phytomorph, improve leaf vegetables biology
Amount.Therefore, blue light, feux rouges and dark red light play a significant role the growth and development of plant and yielding positive results.It is orange red in sunlight
The content of light is relatively fewer, in addition vegetables in greenhouse, and the industrial crops such as flowers are very aobvious by season and adverse weather conditions
Write, illumination deficiency it is grown have it is important slow down effect, this requires certain illumination as a supplement.At this stage, room
Interior plantation is also mainly using conventional light sources such as fluorescent lamp, metal halide lamp, high-pressure sodium lamp and incandescent lamps frequently as plant growth
Lamp.And the spectrum of these light sources is all the complex light of continuous type, the ratio of all kinds of light is not adjustable, and general lack of 700-
The dark red area of 800nm, therefore mismatched with light required for plant growth, lead to part optical energy loss, promote plant growth
Low efficiency.
With White light LED technology fast development and the scale effect and cost advantage come that reach its maturity, using blue light core
The LED plant growth lamp that piece excitated fluorescent powder obtains, spectrum is abundant and adjustable, can match with the light needed for plant growth.Meanwhile
The advantages that blue chip has fever small, small in size, and power is high, and cost is relatively low, this fluorescent conversion type LED plant growth lamp is also
It can satisfy the demands such as low heat loads and smaller production space for production space, have broad application prospects.Have currently on the market
The luminescent material of 700nm-800nm wide range transmitting is also relatively fewer, and there are no wave crests in phytochrome (Pfr=
730nm) broadband garnet fluorescent powder nearby, therefore broadband is developed, nontoxic and moderate crimson fluorescent
Powder and suitable plant growth lamp is prepared, the efficient green agricultural development in China is of great significance.
Summary of the invention
Technical problem: in view of the deficiencies of the prior art with defect, the present invention provides that a kind of chemical property is stable, luminescent properties
The excellent phosphor material powder for LED plant growth lamp can effectively be excited by blue light (380nm~500nm), and transmitting wave crest exists
The dark red and near infrared light of 650nm~900nm range near 730nm.
It is a further object of the present invention to provide a kind of methods for preparing the phosphor material powder, and this method is simple, easily operated,
It is pollution-free, at low cost.
Technical solution: the present invention is a kind of crimson fluorescent powder material for LED plant growth lamp, the change of the fluorescent powder
Learn expression formula are as follows:
RX3(BO3)4:yCr；
Wherein R is one of La, Lu, Gd, Y, Nd or a variety of combinations, one of X Al, Ga, Sc or a variety of
Combination, wherein 0.005≤y≤0.2.
The preparation method of crimson fluorescent powder material for LED plant growth lamp of the invention includes the following steps:
Step 1: respectively using following substances as raw material:
The oxygenatedchemicals of Cr, one of La, Lu, Gd, Y, Nd or a variety of combinations, the oxygenatedchemicals of Al, Ga, Sc
One of or a variety of combinations, H3BO3、B2O3One of, and according to the chemical composition and chemical agent of the phosphor material powder
Amount is than weighing corresponding raw material；
Step 2: above-mentioned raw materials being mixed directly rear calcination, or addition reaction flux, and by raw material and fluxing
Agent is sufficiently mixed uniformly, by said mixture calcination；
Step 3: the crimson fluorescent powder material of the post-treated process of firing product, i.e. cost of manufacture invention.
Wherein:
H in the step 13BO3Or B2O3Extra mass percentage be 0%~100%.
In the step 2 fluxing agent be alkali halide, alkaline-earth halide, alkali carbonate, sulfate,
The halide, (NH of ammonium4)2SO4Or at least one of halide of Al.
The dosage of fluxing agent is the 0.5%~10% of synthesis material weight ratio in the step 2.
For calcination temperature at 600 DEG C~1600 DEG C, calcination time 1h~40h, calcination number is at least one in the step 2
Secondary, calcination atmosphere is at least one of air, oxygen, nitrogen, argon gas.
Last handling process is to grind product of roasting in the step 3, washs 1 time~3 times, dries after filtering；Wherein
80 DEG C~150 DEG C of drying temperature.
Crimson fluorescent powder material for LED plant growth lamp of the invention is provided for making to phytochrome
Light source.
The utility model has the advantages that compared with prior art, the present invention has following remarkable advantage:
1. material matrix of the present invention is highly stable, it passes through the processes such as heating, bubble, and light-emitting phosphor intensity is substantially not
Become；
It 2. fluorescent powder excites scope is wide, can be excited by the light of 380-500nm and 520nm-650nm range, emit 650-
The dark red and near infrared light of 900nm range.
3. the preparation method of the fluorescent powder is simple, easily operated.
Detailed description of the invention
Fig. 1 is the excitation and emission spectra of the embodiment of the present invention 1；
Fig. 2 is the excitation spectrum of the embodiment of the present invention 2, supervisory wavelength 720nm；
Fig. 3 is the emission spectrum of the embodiment of the present invention 2, a length of 450nm of excitation light wave；
Fig. 4 is the excitation spectrum of the embodiment of the present invention 3, supervisory wavelength 720nm；
Fig. 5 is the emission spectrum of the embodiment of the present invention 3, a length of 450nm of excitation light wave.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is further described technical solution of the present invention.
Embodiment 1:
Weigh raw material Y2O30.005 mole, Al2O30.0144 mole, H3BO30.056 mole, Cr2O30.0006 rubs
You.After raw material is sufficiently mixed, 10h is sintered at 1250 DEG C in air.The product of generation is after being fully ground, using going
It is dried at ion water washing 3 times, 80 DEG C to get garnet fluorescent powder of the invention is arrived.The excitation spectrum of the embodiment and transmitting
Spectrum is as shown in Fig. 1.
Embodiment 2:
Weigh raw material Gd2O30.005 mole, Al2O30.0144 mole, H3BO30.056 mole, Cr2O30.0006 rubs
You, weighs the AlF of raw material weight 1%3As fluxing agent.After raw material and fluxing agent are sufficiently mixed, in air in 1200 DEG C
Lower sintering 5h.After product of roasting is fully ground, secondary calcination 10h is carried out at 1200 DEG C in air.The product of generation is passed through
After crossing grinding, adopts to be washed with deionized at 3 times, 100 DEG C and dry to get garnet fluorescent powder of the invention is arrived.The embodiment
Excitation spectrum and emission spectrum as shown in attached drawing 2,3.
Embodiment 3:
Weigh raw material Lu2O30.005 mole, Al2O30.0144 mole, H3BO30.056 mole, Cr2O30.0006 rubs
You, weighs the AlF of raw material weight 5%3As fluxing agent.After raw material and fluxing agent are sufficiently mixed, in air in 1200 DEG C
Lower sintering 20h.After product of roasting is fully ground, adopts to be washed with deionized at 3 times, 120 DEG C and dry to get depth of the invention is arrived
Red fluorescence powder.The excitation spectrum and emission spectrum of the embodiment are as shown in attached drawing 4,5.
Embodiment 4:
Weigh raw material La2O30.005 mole, Sc2O30.01395 mole, H3BO30.042 mole, Cr2O3 0.00105
Mole, the LiF of raw material weight 2% is weighed as fluxing agent.After raw material and fluxing agent are sufficiently mixed, in air in 1100 DEG C
Lower sintering 40h.After product of roasting is fully ground, adopts to be washed with deionized at 3 times, 120 DEG C and dry to get depth of the invention is arrived
Red fluorescence powder.The excitation spectrum and emission spectrum and embodiment 1 of the embodiment are close.
Embodiment 5:
Weigh raw material Y2O30.005 mole, Ga2O30.0135 mole, H3BO30.07 mole, Cr2O30.0015 mole.
After raw material is sufficiently mixed, 5h is sintered at 1300 DEG C in air.After product of roasting is fully ground, in air in 1300 DEG C
It is lower to carry out secondary calcination 5h.By the product of generation by grinding after to get arrive garnet fluorescent powder of the invention.The embodiment
Excitation spectrum and emission spectrum and embodiment 1 are close.
Embodiment 6:
Weigh raw material Nd2O30.005 mole, Al2O30.0147 mole, H3BO30.014 mole, Cr2O30.0003 rubs
You, weighs the Li of raw material weight 0.5%2CO3As fluxing agent.After raw material and fluxing agent are sufficiently mixed, in air in 750
2h is sintered at DEG C.After product of roasting is fully ground, secondary calcination 20h is carried out at 1200 DEG C in air.By the product of generation
By grinding after to get arrive garnet fluorescent powder of the invention.The excitation spectrum and emission spectrum of the embodiment connect with embodiment 1
Closely.
Embodiment 7:
Weigh raw material Y2O30.005 mole, Al2O30.0141 mole, B2O30.084 mole, Cr2O30.009 mole.
After raw material is sufficiently mixed, 2h is sintered at 750 DEG C in air.After product of roasting is fully ground, in air in 1300 DEG C
It is lower to carry out secondary calcination 10h.By the product of generation by grinding after to get arrive garnet fluorescent powder of the invention.The embodiment
Excitation spectrum and emission spectrum and embodiment 1 it is close.
Embodiment 8:
Weigh raw material Gd2O30.005 mole, Al2O30.0144 mole, B2O30.056 mole, Cr2O30.0006 rubs
You.After raw material is sufficiently mixed, 2h is sintered at 1100 DEG C in air.After product of roasting is fully ground, in air in
Secondary calcination 40h is carried out at 1100 DEG C.By the product of generation by grinding after to get arrive garnet fluorescent powder of the invention.It should
The excitation spectrum and emission spectrum and embodiment 2 of embodiment are close.
Embodiment 9:
Weigh raw material Y2O30.00625 mole of Sc2O30.01875 mole, H3BO30.0625 mole, Cr2O3 0.00025
Mole.After raw material is sufficiently mixed, 3h is sintered at 1250 DEG C in air.After product of roasting is fully ground, in air in
Secondary calcination 4h is carried out at 1250 DEG C.After product of roasting is fully ground, calcination 4h three times is carried out at 1250 DEG C in air, it is raw
At product after being fully ground, adopt to be washed with deionized at 3 times, 80 DEG C and dry to get glimmering to peony of the invention
Light powder.The excitation spectrum and emission spectrum and embodiment 1 of the embodiment are close.
Embodiment 10:
Weigh raw material Gd2O30.00625 mole of Ga2O30.01875 mole, B2O30.0625 mole, Cr2O3 0.00025
Mole.After raw material is sufficiently mixed, 3h is sintered at 1300 DEG C in air.The product of generation uses after being fully ground
Deionized water dries to arrive garnet fluorescent powder of the invention at washing 3 times, 80 DEG C.The excitation spectrum and hair of the embodiment
It penetrates spectrum and embodiment 2 is close.
Embodiment 11:
Weigh raw material Lu2O30.00625 mole of Ga2O30.01875 mole, B2O30.0875 mole, Cr2O3 0.0005
Mole.After raw material is sufficiently mixed, 5h is sintered at 1300 DEG C in air.The product of generation uses after being fully ground
Deionized water dries to arrive garnet fluorescent powder of the invention at washing 3 times, 100 DEG C.The excitation spectrum and hair of the embodiment
It penetrates spectrum and embodiment 3 is close.
Embodiment 12:
Weigh raw material La2O30.00625 mole of Al2O30.01875 mole, B2O30.01 mole, Cr2O30.00025 rubs
You, weighs the BaF of raw material weight 1%2As fluxing agent.After raw material and fluxing agent are sufficiently mixed, in air in 1100 DEG C
Lower sintering 10h.After product of roasting is fully ground, adopts to be washed with deionized at 3 times, 120 DEG C and dry to get depth of the invention is arrived
Red fluorescence powder.The excitation spectrum and emission spectrum and embodiment 1 of the embodiment are close.
The undeclared part being directed to is same as the prior art or is realized using the prior art.
Claims (8)
1. a kind of crimson fluorescent powder material for LED plant growth lamp, it is characterised in that the chemical expression of the fluorescent powder
Are as follows:
RX3(BO3)4:yCr；
Wherein R is one of La, Lu, Gd, Y, Nd or a variety of combinations, one of X Al, Ga, Sc or a variety of combinations,
Wherein 0.005≤y≤0.2.
2. a kind of preparation method for the crimson fluorescent powder material of LED plant growth lamp as described in claim 1,
It is characterized by: the preparation method of the fluorescent powder includes the following steps:
Step 1: respectively using following substances as raw material:
The oxygenatedchemicals of Cr, one of La, Lu, Gd, Y, Nd or a variety of combinations, in the oxygenatedchemicals of Al, Ga, Sc
One or more combinations, H3BO3、B2O3One of, and according to the chemical composition and chemical dosage ratio of the phosphor material powder
Weigh corresponding raw material；
Step 2: above-mentioned raw materials being mixed directly rear calcination, or addition reaction flux, and raw material and fluxing agent are filled
Divide and be uniformly mixed, by said mixture calcination；
Step 3: the crimson fluorescent powder material of the post-treated process of firing product, i.e. cost of manufacture invention.
3. the preparation method of the crimson fluorescent powder material according to claim 2 for LED plant growth lamp, feature
It is: H in the step 13BO3Or B2O3Extra mass percentage be 0%~100%.
4. the preparation method of the crimson fluorescent powder material according to claim 2 for LED plant growth lamp, feature
Be: fluxing agent is alkali halide, alkaline-earth halide, alkali carbonate, sulfate, ammonium in the step 2
Halide, (NH4)2SO4Or at least one of halide of Al.
5. the preparation method of the crimson fluorescent powder material according to claim 2 for LED plant growth lamp, feature
Be: the dosage of fluxing agent is the 0.5%~10% of synthesis material weight ratio in the step 2.
6. the preparation method of the crimson fluorescent powder material according to claim 2 for LED plant growth lamp, feature
Be: in the step 2 calcination temperature at 600 DEG C~1600 DEG C, calcination time 1h~40h, calcination number be at least once,
Calcination atmosphere is at least one of air, oxygen, nitrogen, argon gas.
7. the preparation method of the crimson fluorescent powder material according to claim 2 for LED plant growth lamp, feature
Be: last handling process is to grind product of roasting in the step 3, washs 1 time~3 times, dries after filtering；Wherein dry
80 DEG C~150 DEG C of temperature.
8. a kind of application for the crimson fluorescent powder material of LED plant growth lamp, feature as described in claim 1 exist
In: light source is provided to phytochrome for making.
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| CN201910627112.2A CN110358537A (en) | 2019-07-11 | 2019-07-11 | A kind of garnet fluorescent powder and preparation method thereof for LED plant growth lamp |
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| CN201910627112.2A CN110358537A (en) | 2019-07-11 | 2019-07-11 | A kind of garnet fluorescent powder and preparation method thereof for LED plant growth lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542538A (en) * | 2020-12-28 | 2021-03-23 | 甘肃颐年商贸有限责任公司 | Fluorescent powder composition capable of promoting rapid growth of algae and application thereof |
| CN114686228A (en) * | 2022-03-31 | 2022-07-01 | 长沙市斑点照明有限公司 | Red light fluorescent powder and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834403A (en) * | 2009-03-13 | 2010-09-15 | 中国科学院福建物质结构研究所 | Tunable solid laser adopting double-doped non-linear laser crystal |
| CN103882523A (en) * | 2014-04-01 | 2014-06-25 | 中国科学院福建物质结构研究所 | Chromium-doped aluminium borate scandium-lanthanum tunable laser crystal |
| DE102014107321A1 (en) * | 2014-05-23 | 2015-11-26 | Tailorlux Gmbh | Infrared LED |
| WO2018207703A1 (en) * | 2017-05-11 | 2018-11-15 | 三菱ケミカル株式会社 | Light emitting device and phosphor |
-
2019
- 2019-07-11 CN CN201910627112.2A patent/CN110358537A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834403A (en) * | 2009-03-13 | 2010-09-15 | 中国科学院福建物质结构研究所 | Tunable solid laser adopting double-doped non-linear laser crystal |
| CN103882523A (en) * | 2014-04-01 | 2014-06-25 | 中国科学院福建物质结构研究所 | Chromium-doped aluminium borate scandium-lanthanum tunable laser crystal |
| DE102014107321A1 (en) * | 2014-05-23 | 2015-11-26 | Tailorlux Gmbh | Infrared LED |
| WO2018207703A1 (en) * | 2017-05-11 | 2018-11-15 | 三菱ケミカル株式会社 | Light emitting device and phosphor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542538A (en) * | 2020-12-28 | 2021-03-23 | 甘肃颐年商贸有限责任公司 | Fluorescent powder composition capable of promoting rapid growth of algae and application thereof |
| CN114686228A (en) * | 2022-03-31 | 2022-07-01 | 长沙市斑点照明有限公司 | Red light fluorescent powder and preparation method and application thereof |
| CN114686228B (en) * | 2022-03-31 | 2023-10-13 | 长沙市斑点照明有限公司 | Red light fluorescent powder and preparation method and application thereof |
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