CN109994592A - Quantum dot colloid, light conversion element and light emitting device - Google Patents
Quantum dot colloid, light conversion element and light emitting device Download PDFInfo
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- CN109994592A CN109994592A CN201810851964.5A CN201810851964A CN109994592A CN 109994592 A CN109994592 A CN 109994592A CN 201810851964 A CN201810851964 A CN 201810851964A CN 109994592 A CN109994592 A CN 109994592A
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- 239000002096 quantum dot Substances 0.000 title claims abstract description 79
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 34
- 239000000084 colloidal system Substances 0.000 title claims abstract description 34
- 239000003223 protective agent Substances 0.000 claims abstract description 31
- 239000002105 nanoparticle Substances 0.000 claims abstract description 20
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 10
- 239000004811 fluoropolymer Substances 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 21
- 230000004888 barrier function Effects 0.000 claims description 8
- 229910007709 ZnTe Inorganic materials 0.000 claims description 6
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 5
- 229910004613 CdTe Inorganic materials 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 claims description 4
- -1 CdSeS Inorganic materials 0.000 claims description 3
- 239000011258 core-shell material Substances 0.000 claims description 3
- YBNMDCCMCLUHBL-UHFFFAOYSA-N (2,5-dioxopyrrolidin-1-yl) 4-pyren-1-ylbutanoate Chemical compound C=1C=C(C2=C34)C=CC3=CC=CC4=CC=C2C=1CCCC(=O)ON1C(=O)CCC1=O YBNMDCCMCLUHBL-UHFFFAOYSA-N 0.000 claims description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 2
- 229910004262 HgTe Inorganic materials 0.000 claims description 2
- 229910000673 Indium arsenide Inorganic materials 0.000 claims description 2
- 229910002665 PbTe Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- OCGWQDWYSQAFTO-UHFFFAOYSA-N tellanylidenelead Chemical compound [Pb]=[Te] OCGWQDWYSQAFTO-UHFFFAOYSA-N 0.000 claims description 2
- 229910002601 GaN Inorganic materials 0.000 claims 1
- 229910005540 GaP Inorganic materials 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 19
- 229910052760 oxygen Inorganic materials 0.000 abstract description 19
- 239000001301 oxygen Substances 0.000 abstract description 19
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000006862 quantum yield reaction Methods 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000554 physical therapy Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 241001025261 Neoraja caerulea Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000000090 biomarker Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002390 rotary evaporation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004347 surface barrier 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
- Luminescent Compositions (AREA)
Abstract
A kind of quantum dot colloid, comprising: fluorescence quantum, fluoropolymer resin and protective agent；The protective agent is nanoparticle, and the partial size of the fluorescence quantum is greater than protectant partial size.Compared to the biggish fluorescence quantum of partial size, the lesser protective agent of partial size has higher surface can, it is easier in conjunction with oxygen and steam, reaction, oxygen and steam in quantum dispensing body is consumed, so that fluorescence quantum be avoided to be destroyed.Light conversion element based on the preparation of quantum dot colloid in the present invention has high stability and long life.
Description
Divisional application
The application is in entitled " quantum dot colloid, light conversion element and the light emitting device " submitted on October 20th, 2016
The divisional application of state's patent application " 201610912878.1 ".
Technical field
The present invention relates to technology of quantum dots fields, fill more particularly, to a kind of quantum dot colloid, light conversion element and display
It sets.
Background technique
Quantum dot is a kind of inorganic semiconductor luminescence nanocrystalline of three-dimensional dimension all within the scope of 1-20nm, due to its particle
Partial size is less than or close to exciton Bohr radius, and quantum dot has excitation wavelength range wide, size tunable, half-peak width, stoke
The advantages that this displacement is big, and photostability is strong, thus it is widely used in the fields such as display, biomarker, solar battery.
Technology of quantum dots has been applied to display field, the characteristics of due to its half-peak width, the display based on quantum dot
Colour gamut be greatly improved.Quantum dot is shown organic in luminescence technology as a kind of inorganic nano material compared to OLED
Material has better stability, longer service life.Meanwhile the display light emitting device of quantum dot has lower manufacture
Cost, therefore, quantum dot are considered as the optimal selection of next-generation display luminescent material.
Technology of quantum dots technology of relative maturity in terms of showing equipment application is LED backlight mould group, generates white light
One of mode can be summarized as using blue-ray LED as light source, and the red and green quantum dot of excitation, red, green, blue three coloured light is mixed to form white
Light.But quantum dot is easy the destruction by external environments such as oxygen, steam, luminous efficiency is measured by strong influence
Son puts one of relevant technology and is how to increase the stability of quantum dot, keeps its excellent luminosity.Quantum dot is general
It is dispersed in formation quantum dispensing body in fluoropolymer resin material of main part, then quantum dot colloid is packaged into diaphragm, Huo Zhefeng
The form of dress in a glass tube exists as light conversion element.Exist currently, increasing one of the method in quantum dot materials'use service life
In the selection of encapsulating material and packaged type, but whether how mature encapsulation technology is, the macromolecule as one of encapsulating material
It is certain that the ability of extraneous steam and oxygen, which is isolated, and can residual fraction steam and oxygen in quantum dot colloid；Another side
Method is exactly addition antioxidant molecule such as phenol system, phosphorus system and the chalcogenide compound in quantum dot colloid, utilizes official specific in molecule
The reduction for oxygen can be rolled into a ball and worked, but such compound cannot eliminate the gaseous matters such as other substances such as steam to quantum
The destruction of point, it is not complete enough for the protection of quantum dot.
Based on background above, finding one kind can increase quanta point material stability and service life, reduce extraneous oxygen and steam
For the method for the destruction of quantum dot, for quantum dot in display illumination field using most important.
Summary of the invention
Aiming at the problem that current quanta point material is easily destroyed, the present invention is intended to provide a kind of quantum dot colloid, the quantum
Quanta point material has high stability, long life in point colloid.
To achieve the above object, it is an aspect of the invention to provide a kind of quantum dot colloid, comprising: fluorescence quantum,
Fluoropolymer resin and protective agent；The protective agent is nanoparticle, and the partial size of the fluorescence quantum is greater than described protectant
Partial size.
Preferably, the partial size of the fluorescence quantum is within the scope of 7-20nm.
Preferably, protectant partial size is within the scope of 1-4nm.
Preferably, the fluorescence quantum includes the single knot of IIB-VIA, IVA-VIA, IIIA-VA, IB-VIA compounds of group
At least one of structure and composite construction quantum dot.
Preferably, the composite construction quantum dot includes nuclear shell structure quantum point, constitutes the nuclear shell structure quantum point
Core include CdSe, CdS, CdTe, CdSeTe, CdZnS, PbSe, ZnTe, CdSeS, PbS, PbTe, HgS, HgSe, HgTe, GaN,
At least one of GaP, GaAs, InP, InAs, InZnP, InGaP, InGaN and HgInZnS；Constitute the core-shell structure quantum
The shell of point includes at least one of ZnSe, ZnS, ZnSeS, ZnTe, CdSe, CdTe and TiO.
Preferably, the protective agent includes the lower material of fluorescence quantum yield, protectant fluorescence quantum yield
Lower than 5%.
Preferably, the shell of the fluorescence quantum has the energy for not being weaker than that protectant antioxygen gas and steam destroy
Power.
Preferably, the protective agent is selected from the substance compared with strong reducing property, and the protective agent is prior to the fluorescence volume
Son point is destroyed by oxygen and steam.
Preferably, the protective agent includes at least one of ZnSe, ZnS, ZnSeS, ZnTe, Ag and Cu.
Preferably, the shell of the fluorescence quantum and the protective agent are same substance.
Preferably, the fluoropolymer resin includes organosilicon resinoid, acrylic resin, epoxylite and polyurethane
At least one of.
It is another aspect of the invention to provide a kind of light conversion element, the light conversion element includes the quantum dispensing
Body and barrier material positioned at quantum dot colloid outer surface.
Preferably, the light conversion element includes at least one of Quantum Dot Glass pipe and quantum dot film.
It is another aspect of the invention to provide a kind of light emitting device, the light emitting device includes the light conversion element.
Preferably, the light emitting device includes at least one of display backlight mould group, physical therapy device and lighting device.
The invention has the following advantages: the present invention provides a kind of quantum dot colloids, with the nanoparticle of small particle
For protective agent；Compared to the biggish fluorescence quantum of partial size, the lesser nanoparticle of partial size has higher surface can, it is easier to
With oxygen and steam association reaction, oxygen and steam in quantum dispensing body are consumed, so that fluorescence quantum be avoided to be destroyed, is solved
The problem of current quanta point material stability and service life deficiency；Light conversion elements in the present invention based on quantum dot colloid have
High stability and long life provide a kind of new idea and method to increase the stability of quanta point material.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of quantum dot colloid of the present invention.
Specific embodiment
Below in conjunction with embodiment of the present invention, technical solution in the embodiment of the present invention is described in detail, and is shown
So, described embodiment is only some embodiments of the invention, rather than whole embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's every other implementation obtained without making creative work
Mode belongs to the scope of the present invention.
The present invention provides a kind of quantum dot colloids, comprising: fluorescence quantum 101, fluoropolymer resin 102 and protective agent
103；Wherein, protective agent 103 is nanoparticle, and fluorescence quantum 101 has the partial size greater than protective agent 103.
When quantum dot is dispersed in polymer body, although in polymer material the residual of oxygen and steam less and
The sealing of system is preferable, but remaining trace oxygen and steam can all cause quantum dot greatly to destroy in system, influences
Its service life and luminescent properties.It can be preferentially in conjunction with oxygen in system and steam, to disappear it is an object of the present invention to find one kind
Oxygen consumption gas and steam, the substitute for avoiding quantum dot from being destroyed.
When the partial size of nanoparticle is smaller, since the surface energy of nanoparticle is high, surface defect is more, nanoparticle more holds
Easily to the absorption of the gaseous matters such as oxygen, steam, reaction, thus oxygen and steam in consumption system, avoid fluorescence quantum by
To destruction.
In one preferred embodiment, the partial size of fluorescence quantum 101 is within the scope of 7-20nm；More preferably at one
Embodiment in, the partial size of fluorescence quantum 101 is within the scope of 8-15nm；In a specific embodiment, fluorescence volume
The partial size of son point 101 is 10nm or so.
In one preferred embodiment, the partial size of protective agent 103 is within the scope of 1-4nm；It is preferred real at one
It applies in mode, the partial size of protective agent 103 is within the scope of 1-3nm；In a specific embodiment, the partial size of protective agent 103
For 2nm or so.
Fluorescence quantum 101 includes the single knot of IIB-VIA, IVA-VIA, IIIA-VA, IB-VIA compounds of group in the present invention
At least one of structure and composite construction quantum dot.In one preferred embodiment, fluorescence quantum 101 is with nucleocapsid
The quantum dot of structure；In a specific embodiment, fluorescence quantum 101 is CdSe/ZnS core of the partial size in 10nm or so
Core-shell structure quantum dots.
Protective agent 103 of the nanoparticle as system, optical property should be dry to the luminosity of fluorescence quantum 101
Disturb smaller, protective agent 103 is preferably the lower material of fluorescence quantum yield, and the fluorescence quantum yield of protective agent 103 is lower than 5%.
The effect of protective agent 103 is same oxygen and steam association reaction, and protective agent 103, which is selected from, to be had compared with strong reducing property
Substance, protective agent 103 are destroyed prior to fluorescence quantum 101 by oxygen and steam.
In one preferred embodiment, the shell of fluorescence quantum 101 have be not weaker than protective agent 103 antioxygen gas and
The ability that steam destroys.In one preferred embodiment, the shell of fluorescence quantum 101 and protective agent 103 are same substance；
In a specific embodiment, protective agent 103 is ZnS nanoparticle of the partial size in 2nm or so.
The decentralized medium of fluorescence quantum 101 is fluoropolymer resin 102 in the present invention, and fluoropolymer resin 102 includes organic
At least one of silicon resinoid, acrylic resin, epoxylite and polyurethane.In one preferred embodiment,
Fluoropolymer resin 102 is acrylic resin；In a specific embodiment, fluoropolymer resin 102 is acrylic compounds UV
Glue.
The present invention provides a kind of light conversion elements, the resistance including quantum dot colloid and positioned at quantum dot colloid outer surface
Barrier material.The effect of barrier material is that ambient atmos such as oxygen and steam etc. is prevented to enter quantum dispensing body, and barrier material includes
Inorganic oxide material and high molecular material.The preparation step of light conversion element includes to the solidification of quantum dot colloid and to quantum
The encapsulation of point colloid.
In one preferred embodiment, light conversion element includes at least one in Quantum Dot Glass pipe and quantum dot film
Kind.In a specific embodiment, light conversion element is Quantum Dot Glass pipe, is packaged with quantum dot colloid in glass tube.
In a specific embodiment, light conversion element is quantum dot film, including the first barrier film and the second barrier film, quantum dot
Colloid is encapsulated between the first barrier film and the second barrier film.
The present invention also provides a kind of light emitting device including above-mentioned light conversion element, light emitting device includes display backlight mould
At least one of group, physical therapy device and lighting device.
Display backlight mould group based on above-mentioned light conversion element, including light source, light guide plate and light conversion element；Have at one
In the embodiment of body, light conversion element is Quantum Dot Glass pipe, and light source is arranged at the incidence surface of light guide plate, Quantum Dot Glass
Pipe is arranged between light source and light guide plate.
Based on the physical therapy device of above-mentioned light conversion element, luminous site includes light source, light conversion elements and constant zero
Part；In a specific embodiment, light conversion element is quantum dot film, and quantum dot film is shone by the excitation of light source.
Based on the lighting device of above-mentioned light conversion element, luminous site includes light source, light conversion elements and constant zero
Part；In a specific embodiment, light conversion element is quantum dot film, and quantum dot film is shone by the excitation of light source.
Embodiment 1
By the CdSe/ZnS quantum dot toluene solution of the about 10nm of the partial size containing 2mg, the about 2nm of the partial size containing 0.2mg
ZnS nanoparticle toluene solution is mixed with the UV glue of 200mg, and after mixing, rotary evaporation in vacuo solvent obtains quantum dispensing
Body；Then, under vacuum conditions, quantum dot colloid is filling in glass tube, 10min solidification is irradiated under the ultraviolet light of 365nm,
Then encapsulation obtains Quantum Dot Glass pipe.
Embodiment 2
Same as Example 1, different is: ZnS nanoparticle dosage is 1mg.
Embodiment 3
Same as Example 1, different is: ZnS nanoparticle dosage is 2mg.
Comparative example 1
Same as Example 1, different is: being free of ZnS nanoparticle.
Then the stability of Quantum Dot Glass pipe is measured, determination condition is as follows: in 80 DEG C of environment, utilizes indigo plant
Light LED light is irradiated Quantum Dot Glass pipe, and after tested, the temperature of LED lamp bead is about 110 DEG C.Under the test environment, quantum
Point can be destroyed gradually, and fluorescence can fade away, until the basic blackening of glass tube.The quantum dot of different ZnS nanoparticle contents
Glass tube shows the different blackening time, and experimental results are as shown in the table:
| Embodiment | Comparative example 1 | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| The blackening time/h | 48 | 60 | 108 | > 200 |
The experimental results showed that in comparative example 1, when being added without the blackening of the protectant Quantum Dot Glass pipe of ZnS nanoparticle
Between only 48h；With the increase of ZnS nanoparticle content, in embodiment 3, the blackening time of Quantum Dot Glass pipe reaches pair
Four times or more in ratio 1, show that its stability dramatically increases.
The present invention, can using the high surface of small particle nanoparticle using the nanoparticle of small particle as protective agent, it is easier to
In quantum dot colloid the characteristics of the association reactions such as oxygen and steam, it can be well protected fluorescence quantum and destroyed, significantly
Increase the stability and service life of quanta point material.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
Variation is still in the protection scope of this invention.
Claims (10)
1. a kind of quantum dot colloid, comprising: fluorescence quantum, fluoropolymer resin and protective agent；It is characterized in that, the protective agent
Partial size for nanoparticle, the fluorescence quantum is greater than protectant partial size.
2. quantum dot colloid according to claim 1, it is characterised in that: the partial size of the fluorescence quantum is in 7-20nm model
In enclosing.
3. quantum dot colloid according to claim 1, it is characterised in that: protectant partial size is within the scope of 1-4nm.
4. quantum dot colloid according to claim 1, it is characterised in that: the fluorescence quantum includes IIB-VIA, IVA-
At least one of VIA, IIIA-VA, IB-VIA compounds of group single structure and composite construction quantum dot.
5. quantum dot colloid according to claim 4, it is characterised in that: the composite construction quantum dot includes core-shell structure
Quantum dot, constitute the nuclear shell structure quantum point core include CdSe, CdS, CdTe, CdSeTe, CdZnS, PbSe, ZnTe,
CdSeS, PbS, PbTe, HgS, HgSe, HgTe, GaN, GaP, GaAs, InP, InAs, InZnP, InGaP, InGaN and HgInZnS
At least one of；The shell for constituting the nuclear shell structure quantum point includes ZnSe, ZnS, ZnSeS, ZnTe, CdSe, CdTe and TiO
At least one of.
6. quantum dot colloid according to claim 1, it is characterised in that: the protective agent include ZnSe, ZnS, ZnSeS,
At least one of ZnTe, Ag and Cu.
7. quantum dot colloid according to claim 5, it is characterised in that: the shell of the fluorescence quantum and the protective agent
For same substance.
8. a kind of light conversion element, it is characterised in that: the light conversion element includes any quantum dot in claim 1-7
Colloid and barrier material positioned at quantum dot colloid outer surface.
9. a kind of light emitting device, it is characterised in that: the light emitting device includes light conversion element according to any one of claims 8.
10. light emitting device according to claim 9, it is characterised in that: the light emitting device includes display backlight mould group, reason
Treat at least one of device and lighting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810851964.5A CN109994592B (en) | 2016-10-20 | 2016-10-20 | Quantum dot colloid, light conversion element and light emitting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912878.1A CN106449949A (en) | 2016-10-20 | 2016-10-20 | Quantum dot colloid, light conversion element, and light-emitting device |
| CN201810851964.5A CN109994592B (en) | 2016-10-20 | 2016-10-20 | Quantum dot colloid, light conversion element and light emitting device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610912878.1A Division CN106449949A (en) | 2016-10-20 | 2016-10-20 | Quantum dot colloid, light conversion element, and light-emitting device |
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| Publication Number | Publication Date |
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| CN109994592A true CN109994592A (en) | 2019-07-09 |
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| WO2019129015A1 (en) * | 2017-12-26 | 2019-07-04 | Tcl集团股份有限公司 | Thin film and fabrication method therefor and qled device |
| CN113122230B (en) * | 2019-12-31 | 2022-12-06 | Tcl科技集团股份有限公司 | Quantum dot composite material and quantum dot light-emitting diode |
| CN111933667B (en) * | 2020-08-12 | 2023-09-05 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
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| CN109994592B (en) | 2021-10-19 |
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