CN107681042A - A kind of quantum dot LED light source for plant growth - Google Patents
A kind of quantum dot LED light source for plant growth Download PDFInfo
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- CN107681042A CN107681042A CN201710910401.4A CN201710910401A CN107681042A CN 107681042 A CN107681042 A CN 107681042A CN 201710910401 A CN201710910401 A CN 201710910401A CN 107681042 A CN107681042 A CN 107681042A
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- quantum dot
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- 239000002096 quantum dot Substances 0.000 title claims abstract description 54
- 230000008635 plant growth Effects 0.000 title claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 11
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 3
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 3
- 229910052738 indium Inorganic materials 0.000 claims abstract description 3
- 229910052711 selenium Inorganic materials 0.000 claims abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 3
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical group [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 abstract description 10
- 238000000862 absorption spectrum Methods 0.000 abstract description 8
- 238000005538 encapsulation Methods 0.000 abstract description 4
- 230000001502 supplementing effect Effects 0.000 abstract description 3
- 229930002875 chlorophyll Natural products 0.000 abstract description 2
- 235000019804 chlorophyll Nutrition 0.000 abstract description 2
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 abstract description 2
- 238000012827 research and development Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 description 6
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- 238000010672 photosynthesis Methods 0.000 description 5
- 230000029553 photosynthesis Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 241001025261 Neoraja caerulea Species 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000000695 excitation spectrum Methods 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 238000001215 fluorescent labelling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
- H01L33/504—Elements with two or more wavelength conversion materials
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Luminescent Compositions (AREA)
- Cultivation Of Plants (AREA)
- Led Device Packages (AREA)
Abstract
The invention provides a kind of quantum dot LED light source for plant growth, it is made up of LED chip, blue light quantum point, red light quantum point, the blue light quantum point is selected from the carbon containing carboxyl, hydroxyl；Red light quantum point is selected from Cu, In, S, Cd, Se element；The proportioning of its blue light and red light quantum point is 0.1~0.9：0.9~0.1.The present invention utilizes the characteristics such as the luminescent spectrum of quantum dot is adjustable, light is stablized, fluorescence lifetime is grown, by with LED chip assembled package, the feux rouges to be matched with plant chlorophyll absorption spectrum and blue spectrum are encapsulated out, and luminous efficiency is higher, it may replace the LED plant growth light sources of pure LED chip encapsulation, it is expected to be widely used for plant factor, supplementing light for greenhouse etc..Research and development quantum dot plant lamp has huge market potential and application value.
Description
Technical field
The present invention relates to technical field of LED illumination, more particularly, to a kind of quantum dot LED light for plant growth
Source.
Background technology
Alivisatos and Nie Liang Ge research groups deliver relevant quantum dot as bioprobe on Science respectively
Paper, and first using quantum dot as biological fluorescent labelling and applied to living cells system, how solve by quantum dot
It is dissolved in the aqueous solution, and the problem of how quantum dot is coupled by the active group on surface with large biological molecule, thus starts
The research boom of quantum dot.
Quantum dot-based to be provided with the luminosity of uniqueness in its quantum effect, it has wide excitation spectrum and transmitting light
Adjustable optical signature is composed, matches with current ripe LED chip and encapsulation technology and technique, is provided to be packaged into light source
Possibility.So far, the major technique of LED field is external Ji Jia big companies control, and domestic LED on sale
Plant lamp, is substantially blue light and red-light LED monochrome lamp bead assembles, and is partially the envelope of blue-ray LED and red light fluorescent powder
Light source is filled, is not enough fitted like a glove with photosynthesis of plant absorption spectrum feature, causes luminous efficiency step-down.
The content of the invention
According to an aspect of the present invention, there is provided a kind of quantum dot light source for plant growth.
A kind of quantum dot LED light source for plant growth, it is made up of LED chip, blue light quantum point, red light quantum point,
The blue light quantum point is selected from the carbon containing carboxyl, hydroxyl；Red light quantum point is selected from Cu, In, S, Cd, Se element；It is blue
The proportioning of light and red light quantum point is 0.1~0.9：0.9~0.1.
The blue light region and 600~700nm that special spectrum scope needed for plant growth photosynthesis is 400~500nm
Red light district, present invention research find to mix blue light quantum point and red light quantum point according to above-mentioned specific ratio, and it obtains light
Source can not only coordinate the spectrum needed for plant growth photosynthesis, and luminous efficiency is higher.
Due to blue light and red light quantum point emission spectrum and photosynthesis of plant absorption spectrum, there is height matched
Property, and quantum dot has the characteristics of particle diameter is small, the light source luminescent encapsulated out is more uniformly distributed, and is more suitable for the light source of plant growth lamp.
In some embodiments, the blue light quantum point is selected from carbon point or graphene quantum dot；Red light quantum point is selected from
CdSe quantum dot or CuInS2Quantum dot.
One skilled in the art will appreciate that above-mentioned CuInS2Quantum dot is coated with ZnS.
In some embodiments, the particle diameter of the blue light quantum point and red light quantum point is 50~10nm.
In some embodiments, the LED chip is selected from purple LED chip, and it launches dominant wavelength in 360~400nm
In the range of, these LED chips match with the absorption spectrum of blue light and red light quantum point, can encapsulate out efficient LED plants
Light source.
According to another aspect of the present invention, the manufacture method of above-mentioned quantum dot LED light source is also provided, is first by blue light
Quantum dot and red light quantum point are according to 0.1~0.9：0.9~0.1 ratio is sufficiently mixed, and is then entered again with LED chip
Row encapsulation, solidification, produce quantum dot LED light source.
According to another aspect of the present invention, application of the above-mentioned quantum dot LED light source in terms of plant illumination is also provided.
Specifically, above-mentioned quantum dot LED light source can be applied to supplementing light for greenhouse, plant factor etc. and be advantageous to plant life
Long photosynthetic needs.
The present invention using quantum dot luminescent spectrum is adjustable, the characteristic such as light is stablized, fluorescence lifetime is grown, by with LED core
Piece assembled package, the feux rouges to be matched with plant chlorophyll absorption spectrum and blue spectrum are encapsulated out, and luminous efficiency is more
Height, the LED plant growth light sources of pure LED chip encapsulation are may replace, are expected to be widely used for plant factor, supplementing light for greenhouse etc..Research and development
Quantum dot plant lamp has huge market potential and application value.
Brief description of the drawings
Fig. 1 is the quantum dot light source luminescent spectrum after embodiment 1 assembles.
Embodiment
With reference to specific embodiments and the drawings, the present invention is further detailed explanation.
Embodiment 1
A kind of quantum dot light source for plant growth, its preparation method are as follows：By carbon point quantum dot and CdSe quantum dot
According to 0.4：0.6 ratio mixing (spectrogram of test gained, is shown in Fig. 1 after mixing), is then sealed with purple LED chip
Dress, is produced after solidification.
Blue curve (i.e. curve 1) be carbon point quantum dot (light emitting main peak 445nm, light emitting region be 400~
500nm) luminescent spectrum feature, black curve (i.e. curve 2) are (light emitting main peak 640nm, the light emitting region of CdSe quantum dot
For 600~700nm) luminescent spectrum feature.
Embodiment 2
A kind of quantum dot light source for plant growth, its preparation method are as follows：By carbon point quantum dot and CdSe quantum dot
According to 0.8：0.2 ratio mixing, is then packaged with purple LED chip, is produced after solidification.
Embodiment 3
A kind of quantum dot light source for plant growth, its preparation method are as follows：By carbon point quantum dot and CuInS2Quantum
O'clock according to 0.3:0.7 ratio mixing, is then packaged with purple LED chip, is produced after solidification.
Embodiment 4
A kind of quantum dot light source for plant growth, its preparation method are as follows：By graphene quantum dot and CuInS2Amount
Son o'clock is according to 0.5：0.5 ratio mixing, is then packaged with purple LED chip, is produced after solidification.
Comparative example 1
Preparation method is with embodiment 1, and uniquely the difference is that, the mixing ratio of carbon point quantum dot and CdSe quantum dot is 0.1：
1。
Comparative example 2
Preparation method with embodiment 1, it is unique unlike, after carbon point quantum dot and CdSe quantum dot are mixed, with blue light
LED chip is packaged solidification.
The LED quantum dot light sources that 1~embodiment of embodiment 4 and comparative example 1, comparative example 2 obtain are analyzed, such as table
1, the results showed that：Too high CdSe causes red light-emitting intensity too strong than regular meeting, special with most plants photosynthesis absorption spectrum
Sign misfits, need to be according to the luminous efficiency of quantum dot and the absorption Spectrum characteristic of plant, to determine blue light and red light quantum point
Ratio, generally, it is the 2~5 of blue light strength to be advisable that red light intensity, which is presented,.
Encapsulated using blue-light LED chip, because the absorption spectrum of blue light quantum point is ultraviolet or ultra-violet (UV) band, so, with
Blue-light LED chip mismatches, luminescent spectrum feature of the light source encapsulated out without blue light quantum point.
Table 1
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (5)
1. a kind of quantum dot LED light source for plant growth, it is characterised in that by LED chip, blue light quantum point, feux rouges amount
Son point composition, the blue light quantum point are selected from the carbon containing carboxyl, hydroxyl；Red light quantum point is selected from Cu, In, S, Cd, Se
Element；The proportioning of its blue light and red light quantum point is 0.1~0.9：0.9~0.1.
2. the quantum dot LED light source according to claim 1 for plant growth, it is characterised in that the blue light quantum
Point is selected from carbon point or graphene quantum dot；Red light quantum point is selected from CdSe quantum dot or CuInS2Quantum dot.
3. the quantum dot LED light source according to claim 1 for plant growth, it is characterised in that the LED chip choosing
From purple LED chip, it launches dominant wavelength in the range of 360~400nm.
4. it is used for the manufacture method of the quantum dot LED light source of plant growth described in any one of claims 1 to 3, it is characterised in that
It is first by blue light quantum point and red light quantum point according to 0.1~0.9：0.9~0.1 ratio is sufficiently mixed, then again with
LED chip is packaged, solidified, and produces quantum dot LED light source.
5. it is used for application of the quantum dot LED light source of plant growth in terms of plant illumination described in any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710910401.4A CN107681042A (en) | 2017-09-29 | 2017-09-29 | A kind of quantum dot LED light source for plant growth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710910401.4A CN107681042A (en) | 2017-09-29 | 2017-09-29 | A kind of quantum dot LED light source for plant growth |
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| Publication Number | Publication Date |
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| CN107681042A true CN107681042A (en) | 2018-02-09 |
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| CN201710910401.4A Pending CN107681042A (en) | 2017-09-29 | 2017-09-29 | A kind of quantum dot LED light source for plant growth |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108925618A (en) * | 2018-04-27 | 2018-12-04 | 苏州星烁纳米科技有限公司 | Photosynthetic antistaling lamp and device |
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Application publication date: 20180209 |
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