CN106118242A - A kind of quantum dot ink of inkjet printing and preparation method thereof - Google Patents
A kind of quantum dot ink of inkjet printing and preparation method thereof Download PDFInfo
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- CN106118242A CN106118242A CN201610604056.7A CN201610604056A CN106118242A CN 106118242 A CN106118242 A CN 106118242A CN 201610604056 A CN201610604056 A CN 201610604056A CN 106118242 A CN106118242 A CN 106118242A
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
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Abstract
Present invention quantum dot ink disclosing a kind of inkjet printing and preparation method thereof, its by weight percentage, including component: quantum dot 0.01 20.0%, solvent 60.0 95.0%, decomposable asymmetric choice net type surfactant 0.01 20.0%.The present invention under above-mentioned formula, prepare quantum dot ink, there is suitable viscosity and surface tension, printer film property requirement can be met.Can pass through inkjet printing methods, formation of deposits has the quantum dot light emitting layer of pixel-matrix；Simultaneously, print organic substance compositions in the quantum dot film layer of preparation and can resolve into little molecule under heating and/or ultraviolet light radiation, then removed by heating and/or decompressing effect volatilization, the electric charge transmission enabling to quantum dot light emitting layer is conveniently carried out, fall low start voltage, so that electronics, hole may be coextruded radioluminescence.
Description
Technical field
The present invention relates to technology of quantum dots field, particularly relate to quantum dot ink and the preparation side thereof of a kind of inkjet printing
Method.
Background technology
Quantum dot (quantum dot) is the nano material of quasi-zero dimension (quasi-zero-dimensional), by a small quantity
Atom constituted.Quantum dot size is the least, and its particle diameter is typically in the range of between 1-20nm.There is quantum confined effect
(quantum confinement effect), continuous print band structure becomes the discrete energy levels structure with molecular characterization, is subject to
Fluorescence can be launched after Jiing.Quantum dot (QD) luminescent material has tranmitting frequency and changes with change in size, launches line width, sends out
The characteristic that photo-quantum efficiency is of a relatively high and the light stability of superelevation and solution process.These features make with quanta point material
As the light emitting diode with quantum dots (QLED) of luminescent layer before the field such as solid-state illumination, flat pannel display has a wide range of applications
Scape, receives the extensive concern of academia and industrial circle.
In recent years, quantum dot is developed rapidly as the electroluminescent device (QLED) of luminescent layer, such as Peng etc.,
At Nature Vol515 96 (2015) and Qian etc., reported in Nature Photonics Vol9 259 (2015)
The QLED device efficiency prepared of spin coating method and the life-span be obtained for the biggest raising.
Except by spin coating method, the solution processing properties of quantum dot make quantum dot light emitting layer can also by blade coating,
Prepared by the various ways such as injection, inkjet printing.Relatively above several method, inkjet technology can the most in the desired amount incite somebody to action
Quantum dot light emitting material is deposited on appropriate location, allows semi-conducting material uniform deposition form thin layer, non-to the utilization rate of material
Chang Gao, manufacturer can reduce production cost, simplifies processing technology, easily popularizes volume production, reduces cost, and environmental protection.Spray
Ink printing technique is the effective ways of the manufacture difficult problem that can solve large scale QLED screen generally acknowledged at present.
But, quantum dot inkjet printing to meet to be stablized out of ink and stably sprawls, and therefore viscosity and surface tension are impacts
Printing-ink and the important parameter of print procedure.Quantum dot ink is essentially all and quantum dot is directly dispersing in solvent at present
In, the quantum dot film thickness causing preparation is inconsistent, has coffee toroidal effect, and uniformity is very poor.And conventional quantum dot ink draws
Enter more organic material, and organic material is difficult to remove in last handling process, cause the transmission of quantum interlayer charge invalid.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide the quantum dot ink of a kind of inkjet printing
And preparation method thereof, it is intended to solve the ink viscosity of existing inkjet printing, surface tension does not reaches requirement, and film material introduces
The problem of more organic material.
Technical scheme is as follows:
A kind of quantum dot ink of inkjet printing, wherein, by weight percentage, including component: quantum dot 0.01-20.0%,
Solvent 60.0-95.0%, decomposable asymmetric choice net type surfactant 0.01-20.0%.
The quantum dot ink of described inkjet printing, wherein, the consumption of described decomposable asymmetric choice net type surfactant is quantum
The 0.1-5% of some total weight.
The quantum dot ink of described inkjet printing, wherein, the molecular weight of described decomposable asymmetric choice net type surfactant exists
Between 100-10000.
The quantum dot ink of described inkjet printing, wherein, described decomposable asymmetric choice net type surfactant is that thermal degradation type can
Decompose surfactant or ultraviolet light Photosensitive decomposable asymmetric choice net surfactant.
The quantum dot ink of described inkjet printing, wherein, the consumption of described quantum dot is quantum dot total weight
4-15%.
The quantum dot ink of described inkjet printing, wherein, described quantum dot be II-IV compound semiconductor,
III-V or group IV-VI compound semiconductor, I-III-VI2One in race's semiconductor nano.
The quantum dot ink of described inkjet printing, wherein, the average-size of described quantum dot is 1 ~ 20nm.
The quantum dot ink of described inkjet printing, wherein, described solvent includes main solvent and cosolvent.
The quantum dot ink of described inkjet printing, wherein, described solvent consumption be quantum dot total weight
60.0-80.0%.
A kind of preparation method of the quantum dot ink of arbitrary described inkjet printing, wherein, including step:
A, according to proportioning, quantum dot is scattered in solvent, obtains quantum dot solution；
B, under agitation, adds decomposable asymmetric choice net type surfactant in described quantum dot solution according to proportioning, it is thus achieved that quantum
Point ink.
Beneficial effect: the present invention is under above-mentioned formula, and the quantum dot ink prepared has suitable viscosity and surface tension,
Printer film property requirement can be met.Can pass through inkjet printing methods, formation of deposits has the quantum dot of pixel-matrix and sends out
Photosphere；Meanwhile, organic substance compositions in the quantum dot film layer of preparation is printed permissible under heating and/or ultraviolet light radiation
Resolve into little molecule, then removed by heating and/or decompressing effect volatilization, it is possible to the electric charge of quantum dot light emitting layer is transmitted
Conveniently carry out, drop low start voltage, so that electronics, hole may be coextruded radioluminescence.
Detailed description of the invention
Present invention quantum dot ink providing a kind of inkjet printing and preparation method thereof, for making the purpose of the present invention, skill
Art scheme and effect are clearer, clear and definite, and the present invention is described in more detail below.Should be appreciated that tool described herein
Body embodiment only in order to explain the present invention, is not intended to limit the present invention.
The present invention provides the quantum dot ink of a kind of inkjet printing, its by weight percentage, including component: quantum dot
0.01-20.0%, solvent 60.0-95.0%, decomposable asymmetric choice net type surfactant 0.01-20.0%.Under above-mentioned formula, the present invention obtains
To quantum dot ink there is suitable viscosity and surface tension, it is possible to meet current ink-jet printer to viscosity and surface tension
Requirement, it is achieved the inkjet printing mode of quantum dot light emitting layer.Specifically, when 25-35 DEG C, the quantum dot oil that the present invention prepares
The viscosity of ink is 1-50.0mPa.s.More preferably, the viscosity of described quantum dot ink is 1.0～15.0mPa.s.
Quantum dot inkjet printing to meet to be stablized out of ink and stably sprawls, and therefore viscosity and surface tension are to affect off-set oil
Ink and the important parameter of print procedure.The present invention passes through to add some additives being conducive to sprawling in quantum dot ink, from
And make quantum dot ink disclosure satisfy that inkjet printing requirement, and to stablize out of ink, stably sprawl, uniform drying, film forming is homogeneous.And amount
Son point ink is different from conventional ink, and quantum dot film material is tried one's best the unnecessary organic material of few introducing, and organic material
Material can be removed in last handling process, to keep the transmission of quantum interlayer charge effectively.It addition, decomposable asymmetric choice net type surface activity of the present invention
Agent is because of the weak bond containing decomposable asymmetric choice net (cracking) under certain condition, and resolving cell can be in post processings such as heating and/or decompressions
During remove.Meanwhile, decomposable asymmetric choice net type surfactant can decompose removal after releasing surfactant plays a role, and has
There is more preferable environmental friendliness characteristic.
Preferably, by weight percentage, the consumption of described decomposable asymmetric choice net type surfactant is quantum dot total weight
0.1-5%.The molecular weight of described decomposable asymmetric choice net type surfactant, between 100-10000, has solubility property, can dissolve
In quantum dot solvent.
Preferably, described decomposable asymmetric choice net type surfactant is thermal degradation type decomposable asymmetric choice net surfactant or ultraviolet light Photosensitive
Decomposable asymmetric choice net surfactant.
Ultraviolet light Photosensitive decomposable asymmetric choice net surfactant refers to the surfactant with ultraviolet light photosensitive structure, Qi Zhongzi
Outer smooth photosensitive structure mainly has: phthalidyl benzenesulfonic acid (such as formula (1)), azobenzene bicarbonate surfactant (such as formula (2))
Double-strand surfactant etc..These structures, to ultraviolet-sensitive, can be decomposed under the irradiation of ultraviolet light.
Phthalidyl benzenesulfonic acid, its molecular structure is as shown in following formula (1):
(1)；
Wherein it is decomposed into as follows:
Wherein, R group is aliphatic organic radical；
Wherein, R is preferably C1-C10 alkyl, such as C1-C10 alkyl, the C1-C10 alkyl of halogen substiuted, such as, and halogen-replacement
C1-C10 alkyl.
Azobenzene bicarbonate surfactant, its molecular structure is as shown in following formula (2):
(2)；
Wherein R1=H or C1-C12 straight or branched alkyl；R2=C1-C16 straight or branched alkyl；R3=C1-C4 alkyl.
Thermal degradation type decomposable asymmetric choice net surfactant refers to the surfactant with heat-sensitive structure, and wherein heat-sensitive structure is main
Have: such as formula (3) and (4).These structures, to thermo-responsive, can be decomposed under heat effect.
(3)；
Wherein R=H or C1-C12 straight or branched alkyl；N is positive integer, 1≤n≤4；
Thermal decomposition surfactant
(4)；
R’=O-K+Or COO-K+；
Rise high-temperature, when temperature reaches more than 60 DEG C, this thermal degradation type decomposable asymmetric choice net surfactant be broken down into hydrophilic and
Hydrophobic group, i.e. two dilute and close two dilute bodies.
。
Preferably, the consumption of described quantum dot is the 4-15% of quantum dot total weight.
Preferably, described quantum dot can be that II-IV compound semiconductor is (such as CdS, CdSe, CdS/ZnS, CdSe/
ZnS or CdSe/CdS/ZnS), III-V or group IV-VI compound semiconductor (such as GaAs, InP, PbS/ZnS or PbSe/ZnS),
I-III-VI2One in the semiconductor nanos such as race.
Preferably, the average-size of described quantum dot is 1 ~ 20nm.And described quantum dot is homogeneous mixed type, gradient
Mixed type, core-shell structure copolymer type or union type.Described quantum dot can be oil-soluble quantum dot.Described quantum dot is selected from doping
Or the quantum dot of undoped.
Preferably, the part of described quantum dot can be acid part, mercaptan part, amine ligand, (oxygen) Phosphine ligands, phospholipid,
One or more in soft phospholipid, polyvinylpyridine.Described acid part includes ten acid, undecylenic acid, tetradecylic acid, oleic acid and firmly
One or more in fat acid；Described mercaptan part includes in eight alkyl hydrosulfides, lauryl mercaptan and Stearyl mercaptan
One or more；Described amine ligand includes one or more in oleyl amine, 18-amine. and eight amine；Described (oxygen) Phosphine ligands includes three
Octyl group phosphine, trioctylphosphine oxide (TOPO) one or more.
Preferably, by weight percentage, the consumption of described solvent is the 60.0-80.0% of quantum dot total weight.More
Preferably, the consumption of described solvent is the 60.0-70% of quantum dot total weight.Most preferably, the consumption of described solvent is
The 60.0-65% of quantum dot total weight.
Solvent of the present invention includes main solvent and cosolvent.Wherein, described main solvent is non-polar solven, and it can be
Single non-polar solven, can also be the mixture of two or more non-polar solven.Preferably, described main solvent generally makes
Between being 60-350 DEG C with boiling point, C6-14 alkane, the non-polar solvent mixture of C6-16 alkane or cycloalkane mixture.Its
In, described alkane is straight or branched alkane, for example, it is possible to be normal hexane, normal heptane, normal octane, nonane, decane, hendecane,
N-dodecane (dodecane), tridecane, the tetradecane, 2-methylpentane, 3-methylpentane, 2,3-dimethylbutane and 2,2-diformazan
Base butane, 2-methyl hexane, 3-methyl hexane, 2,2-dimethyl pentane, 2-methyl heptane, 3-methyl heptane, 4-methyl heptane,
2,2-dimethylhexanes, 2-methyloctane, 3-methyloctane, 4-methyloctane, nonane, 2,2-dimethyl heptane, 2,3-diformazan
Base heptane, 5-methylnonane, 4-ethyl octane, 4-n-pro-pyl heptane, 3,3-diethylhexane, 2,4-dimethyl-3-isopropyl
Pentane, 2-methyldecane, 2,2-dimethylnonane, 4-propyl group octane, 2-methyl-3-ethyl octane, 4-tert-butyl group heptane, 4,4-
Diethylheptane, 2,2,3,3-tetramethyl heptane, 2-methylundecane, 3-ethyl decane, 2,2-dimethyl decane, 4-propyl group nonyl
Alkane, 3,3-diethyl octane, hexamethylene, cycloheptane, cyclooctane, cyclodecane, cyclododecane.
Preferably, described cosolvent is selected from polar solvent, and described cosolvent is the 1.0-80% of solvent gross weight.More preferably
Ground, described cosolvent is the 1.0-40% of solvent gross weight.Described cosolvent can be single polar solvent, can also be multiple
The mixture of polar solvent.Described polar solvent can be the one in alcohol, ketone, ester, amide, halogen and nitro substituted alkanes or
Multiple, one or more in ketone, ester and halogen and nitro substituted alkanes are preferably used.
Specifically, described alcohol includes methanol, ethanol, isopropanol, butanol, amylalcohol, DODECANOL, 1-, 2-methoxyl group second
Alcohol, ring ethanol, 2-methyl cellosolve, 2,2 '-oxo diethanol, 2-ethylaminoethanol, cis-2 methyl cyclohexanol, cis-3-methyl ring
Hexanol, cellosolvo, 2,2-(ethylene epoxide) diethanol, cis-4-methyl ring ethanol, 2-propine-1-alcohol, tetrahydrochysene-
2-furancarbinol, butoxy ethanol, benzyl alcohol, benzenethiol.
Specifically, described ketone include acetone, methyl ethyl ketone, 2,4-pentanedione, cyclohexanone, 1-Phenylethanone..
Specifically, described ester includes methyl formate, Ethyl formate, propyl formate, butyl formate, methyl acetate, acetic acid second
Ester, propyl acetate, isopropyl acetate, butyl acetate, pentyl acetate, isoamyl acetate, acetic anhydride, allyl acetate, cinnamic acid
Ethyl ester, essence of Niobe, ethyl benzoate, benzyl benzoate, benzoic acid propyl ester, dimethyl maleate, ethyl maleate., Malaysia
Dibutyl phthalate, dimethyl sulfate, dithyl sulfate, methyl chloroacetate, ethyl chloroacetate, methyl acetoacetate, acetoacetic acid second
Ester, diethyl malonate, ethyl lactate, ethyl oxalate, methyl butyrate, ethyl n-butyrate..
Specifically, described amide includes Methanamide, acetamide, dimethylformamide, dimethyl acetylamide.
Specifically, described halogen and nitro substituted alkanes include toluene, ethylbenzene, cumene, butyl benzene, sec-butylbenzene,
Tert-butyl benzene, dimethylbenzene, o-Dimethylbenzene, meta-xylene, xylol, chlorobenzene, ortho-chlorotolu'ene, m-dichlorobenzene, paracide, neighbour
Toluene bromide, bromobenzene, 1,2-dimethoxy benzene, 1,2,3-trimethylbenzene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, 1-nitro-2-first
Epoxide benzene, Nitrobenzol, phenol, orthomonochlorphenol, parachlorophenol, 1-chloronaphthalene, 1-bromonaphthalene, iodomethane, iodic ether, iodopropane, iodine
For benzene, ethoxybenzene, a fluorotoluene, to fluorotoluene, fluorobenzene, methoxybenzene, chloroform, 1,1-trichloroethane, 1,1,2-
Chloroform, bromoform, Pentalin., 1,1-dichloroethanes, 1,2-dichloroethanes, 1,2-dichloropropane, 1,3-dichloro third
Alkane, 1,1,2,2-sym-tetrachloroethane, glycol dibromide, 1,1,2,2-tetrabromoethane, carbon tetrachloride, nitromethane, nitroethane,
Dichloromethane, methylene bromide, diiodomethane, benzyl chloride, 1,4-dioxy six alkane, connection hexamethylene, 1-nitropropane, 2-nitro third
Alkane, tiacyclopentane, 1-chloro-2,3-expoxy propane, naphthalene, indenes, 1,2,3,4-naphthane, dimethyl sulfoxide.
Based on above-mentioned quantum dot ink, the present invention also provides for the quantum dot oil of arbitrary a kind of described inkjet printing
The preparation method of ink, it includes step:
A, according to proportioning, quantum dot is scattered in solvent, obtains quantum dot solution；
B, under agitation, adds decomposable asymmetric choice net type surfactant in described quantum dot solution according to proportioning, it is thus achieved that quantum
Point ink.
The quantum dot ink that the present invention is obtained has proper viscosity, surface tension.And the component of all quantum dot ink
Boiling point or decomposition temperature all control below 250 DEG C.
The present invention also provides for a kind of method that quantum dot ink as above is carried out inkjet printing, and it includes step:
Quantum dot film prints: select suitable ink-jet printer to carry out inkjet printing quantum dot light emitting tunic.
Post processing: under the mode effects such as heating and/or ultraviolet light irradiation so that decomposable asymmetric choice net type surfactant resolves into
Little molecule organic decomposition thing, then removes solvent and decomposable asymmetric choice net type in quantum dot light emitting layer film under heating and/or decompressing effect
The little molecule organic decomposition thing of surfactant.In addition to quantum dot so that in quantum dot ink solvent and decompose after little molecule
Organic decomposition thing all volatilizees completely.Wherein, finishing time is 0-60min.
Heat treated: heating-up temperature is 60-350 DEG C.Heating can by control mode of heating, as can take PULSE HEATING or
Person's continuous heating, and heat time heating time be 0-60min, vacuum is 1 × 10-6-760Torr arrives normal pressure, it is ensured that quantum dot light emitting
In tunic, solvent and the volatilization such as little molecule organic decomposition thing after decomposing are completely, and quantum dot is not destroyed.
Ultraviolet light irradiation: be 5mW/cm by illumination2To 200mW/cm2Ultraviolet (wavelength: 230nm to 400nm) irradiate
About 2 seconds to 20 minutes, vacuum was 1 × 10-6-760Torr, it is ensured that in quantum dot light emitting tunic solvent and decompose after little point
Sub-organic decomposition thing all volatilizees completely, and quantum dot is not destroyed.
The quantum dot ink of the present invention meet current ink-jet printer to viscosity and capillary requirement, it is achieved quantum
The inkjet printing mode of some luminescent layer, obtains the quantum dot light emitting layer with pixel-matrix, high-resolution, electroexcitation.Simultaneously
By the volatile performance that ink is suitable, it is evaporated completely so that print in the quantum dot layer of preparation the ink composites such as organic molecule
Entirely so that quantum dot densification is arranged, between quantum dot, electric charge transmission effectively, reduces and opens bright voltage, improves efficiency.
Do not block, quantum of the present invention for making this quantum dot ink suitably discharge from the nozzle of ink jet-print head
The consumption of the point each component of ink, so that the viscosity of this quantum dot ink is usually 50.0mPa.s or lower under room temperature (25 DEG C), excellent
In the range of being selected in 1.0～15.0mPa.s.
For making this quantum dot ink suitably discharge from the nozzle of ink jet-print head, and there is preferable film forming characteristics, this
The surface tension of bright quantum dot ink is usually 50.0mN/m or lower, preferably in the range of 15.0～35.0mN/m.Preferably shape
Become this inkjet printing film so that its dried film thickness is 10～100nm.Particularly preferably this quantum dot ink coating film thickness is
20～50nm.It addition, the present invention coats this ink by piezoelectricity or thermal inkjet-printing.Additionally, after the present invention takes suitably to regulate
The factors such as treatment temperature, process time are to form the quantum dot light emitting layer of desired properties.
Below by embodiment, the present invention is further described (wt% is weight percentage).
Embodiment 1
Following components being added in about 500mL single port flask, in the case of stirring, order of addition is: the oil of 14wt%
Amine stabilized red CdSe/ZnS quantum dot, 52wt% dodecane solvent, 33.5wt % ethylene glycol monobutyl ether, 0.5wt% phthalidyl
Benzene sulfonic acid sodium salt, stirring mixture 30 minutes, obtain quantum dot ink.
By ink-jet printer, it is printed as the red quantum point layer of 20 × 30um, resolution 200 × 200ppi.
Red quantum point is placed on power 5mW/cm2Under low pressure mercury lamp, dominant emission wavelength is 253.7nm, during irradiation
Between 20min.On hot plate, then it is heated to 100 DEG C, vacuum 1 × 10-6Volatile dry 30min under Torr, obtains monochromatic quantum dot
Luminescent layer.
Embodiment 2
Following components being added in about 500mL high-density polyethylene bottle, in the case of stirring, order of addition is:
Stable green CdZnSe/CdZnS, the 23%wt dodecane of the oleyl amine of 10wt%, 40wt% decahydronaphthalenes, 26wt% 3-dibenzyl
Ether, 1wt% thermal degradation type decomposable asymmetric choice net surfactant, stirring mixture 30 minutes, obtain quantum dot ink.
By ink-jet printer, it is printed as the green quantum dot layer of 20 × 30um, resolution 200 × 200ppi.
Hot plate is heated to 180 DEG C, nitrogen flow down volatile dry 30min, obtain monochromatic quantum dot luminescent layer.
In sum, quantum dot ink of inkjet printing that the present invention provides and preparation method thereof, the quantum dot of preparation
Ink, has suitable viscosity and surface tension, can meet printer film property requirement.Inkjet printing methods can be passed through,
Formation of deposits has the quantum dot light emitting layer of pixel-matrix；Meanwhile, organic substance compositions in the quantum dot film layer of preparation is printed
Little molecule can be resolved under heating and/or ultraviolet light radiation, then gone by heating and/or decompressing effect volatilization
Remove, it is possible to the electric charge transmission of quantum dot light emitting layer is conveniently carried out, drops low start voltage, so that electronics, hole are permissible
Carry out recombination radiation luminous.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved according to the above description or to convert, all these modifications and variations all should belong to the guarantor of claims of the present invention
Protect scope.
Claims (10)
1. the quantum dot ink of an inkjet printing, it is characterised in that by weight percentage, including component: quantum dot
0.01-20.0%, solvent 60.0-95.0%, decomposable asymmetric choice net type surfactant 0.01-20.0%.
The quantum dot ink of inkjet printing the most according to claim 1, it is characterised in that live in described decomposable asymmetric choice net type surface
The 0.1-5% that consumption is quantum dot total weight of property agent.
The quantum dot ink of inkjet printing the most according to claim 1, it is characterised in that live in described decomposable asymmetric choice net type surface
The molecular weight of property agent is between 100-10000.
The quantum dot ink of inkjet printing the most according to claim 1, it is characterised in that live in described decomposable asymmetric choice net type surface
Property agent is thermal degradation type decomposable asymmetric choice net surfactant or ultraviolet light Photosensitive decomposable asymmetric choice net surfactant.
The quantum dot ink of inkjet printing the most according to claim 1, it is characterised in that the consumption of described quantum dot is
The 4-15% of quantum dot total weight.
The quantum dot ink of inkjet printing the most according to claim 1, it is characterised in that described quantum dot is II-IV
Compound semiconductor, III-V or group IV-VI compound semiconductor, I-III-VI2One in race's semiconductor nano.
The quantum dot ink of inkjet printing the most according to claim 1, it is characterised in that the average chi of described quantum dot
Very little is 1 ~ 20nm.
The quantum dot ink of inkjet printing the most according to claim 1, it is characterised in that described solvent includes main solvent
And cosolvent.
The quantum dot ink of inkjet printing the most according to claim 1, it is characterised in that described solvent consumption be
The 60.0-80.0% of quantum dot total weight.
10. a preparation method for the quantum dot ink of the inkjet printing as described in claim 1 ~ 9 is arbitrary, its feature exists
In, including step:
A, according to proportioning, quantum dot is scattered in solvent, obtains quantum dot solution；
B, under agitation, adds decomposable asymmetric choice net type surfactant in described quantum dot solution according to proportioning, it is thus achieved that quantum
Point ink.
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| CN110085749A (en) * | 2018-06-15 | 2019-08-02 | 广东聚华印刷显示技术有限公司 | Quantum dot ink and preparation method thereof and quantum dot light emitting device |
| CN111384269A (en) * | 2018-12-29 | 2020-07-07 | Tcl集团股份有限公司 | Quantum dot light-emitting diode and preparation method thereof |
| CN113122068A (en) * | 2019-12-31 | 2021-07-16 | Tcl集团股份有限公司 | Composition, preparation method thereof and light-emitting diode |
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