CN108727904A - Quantum dot ink - Google Patents
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- CN108727904A CN108727904A CN201710273330.1A CN201710273330A CN108727904A CN 108727904 A CN108727904 A CN 108727904A CN 201710273330 A CN201710273330 A CN 201710273330A CN 108727904 A CN108727904 A CN 108727904A
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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
- C09D11/36—Inkjet printing inks based on non-aqueous solvents
Abstract
The present invention provides a kind of quantum dot inks, including at least one quanta point material and at least one alkyl benzene organic solvent, and the boiling point of the alkyl benzene organic solvent is 180 DEG C -320 DEG C, and the structure of the alkyl benzene organic solvent is as shown in general structure I：Wherein, the R is alkyl substituent, and the n is the positive integer of 1-6, and the total number of carbon atoms >=4 of all R.
Description
Technical field
The invention belongs to quantum dot technical field of ink more particularly to a kind of quantum dot inks.
Background technology
Semiconductor-quantum-point shines, and high with photochromic purity, luminous quantum efficiency is high, luminescent color is adjustable, service life is long
Equal good characteristics, these features make the light emitting diode with quantum dots (QLED) using quanta point material as luminescent layer be shone in solid-state
The fields such as bright, FPD show preferable application prospect, receive the extensive concern of academia and industrial circle.
Quantum dot, which is dispersed among in solvent, is configured to quantum dot ink, is suitable for solwution method and prepares.At the solution of quantum dot
Reason characteristic allows quantum dot light emitting layer to be prepared by various ways such as spin coating, blade coating, injection, inkjet printing, bat printings.Ink-jet
Printing (Ink-jet printing) technology is widely studied and is applied in opto-electronic device manufacturing field in recent years, especially
It is used as flat-panel display device, such as Organic Light Emitting Diode (OLED) and QLED is shown in manufacturing technology, it is considered to be solve
High cost and the effective way for realizing large area.Quanta point material can be accurately deposited on by inkjet printing technology in the desired amount
The position of setting, deposition form accurate pixel thin film, can effectively solve the manufacture problem of large scale colour QLED screens, reduce at
This.But ink jet printing device and printing technology there are certain requirements ink, it usually needs suitable viscosity, surface tension and boiling
Point, this also brings bigger difficulty to ink formulation.
Quantum dot is usually dispersed in short carbon chain alkane or monocyclic aromatic equal solvent, such as octane, hexane, toluene etc.
The viscosity of solvent, these solvents is all relatively low, and viscosity is below 1mPa.s under room temperature, and surface tension is also relatively low.Using
The solvent of this low viscosity, ink droplet is not easy to control in ink jet printing process, and easily the problems such as comet point occurs, is unsatisfactory for ink-jet and beats
Print technological requirement.Currently, Ye You companies report the quantum dot ink for printing.It includes nanometer to be reported a kind of if any company
The method of the printable ink formulations of particle is obtained by selecting suitable ink solvent, such as toluene and dodecanol
Printable nanoparticle inks and the corresponding film for including nano-particle.There is company to report a kind of for inkjet printing
Quantum dot ink, this ink include certain density quanta point material, organic solvent and have highly viscous alcohol Type of Collective
Object additive.Also company discloses a kind of quantum dot ink formulations including material of main part, quanta point material and additive.?
In these published patents, in order to regulate and control the physical parameter of ink, these quantum dot inks all include other additives,
Such as alcohols polymer.And the polymeric additive with insulating property (properties) is not easy to remove, and the introducing of this kind of polymer, often drop
The charge transport ability of low quantum dot film has negative effect to the photoelectric properties of photoelectric device, limits it and is led in photoelectricity
The application in domain.
Invention content
The purpose of the present invention is to provide a kind of quantum dot inks, it is intended to solve to contain additive, shadow in quantum dot ink
The problem of ringing the charge transport ability of quantum dot film.
The invention is realized in this way a kind of quantum dot ink, including at least one quanta point material and at least one alkane
The boiling point of base benzene class organic solvent, the alkyl benzene organic solvent is 180 DEG C -320 DEG C, the alkyl benzene organic solvent
Structure is as shown in general structure I：
Wherein, the R is alkyl substituent, and the n is the positive integer of 1-6, and the total number of carbon atoms >=4 of all R.
Quantum dot ink provided by the invention, using alkyl benzene as organic solvent, can to avoid the introducing of additive,
Influence to obtained quantum dot film charge transport ability.The quantum of alkyl benzene organic solvent containing above-mentioned specific structure
Point ink, can not only make quanta point material be uniformly dispersed in printing ink, storage-stable；Moreover, containing above-mentioned specific knot
The quantum dot ink of the alkyl benzene organic solvent of structure, surface tension is within the scope of 24-50mN/m, under the conditions of 25-35 DEG C
Viscosity be 1-40.0mPa.s, suitable viscosity, surface tension disclosure satisfy that current ink-jet printer and printing technology condition
It is required that realizing the inkjet printing mode of quanta point material layer, the quantum with pixel-matrix, high-resolution, electroexcitation is obtained
Point luminescent layer.Meanwhile quantum dot ink provided by the invention has volatile performance appropriate (boiling point is 180 DEG C -320 DEG C), has
Machine molecule can be volatilized completely by way of vacuum evaporation or heating evaporation, form the quantum dot film layer of fine and close arrangement, thus
Charge transmits between quanta point material is effectively ensured, and reduces threshold voltage, improves efficiency.To sum up, quantum dot ink provided by the invention
There is water proper viscosity, surface tension, dispersion performance, volatile performance, particularly suitable inkjet printing to prepare quantum dot material layer, such as
The quantum dot light emitting layer in light emitting diode is prepared by inkjet printing methods.
Description of the drawings
Fig. 1 is the application schematic diagram that quantum dot ink provided in an embodiment of the present invention is used for ink jet printing device.
Specific implementation mode
In order to make technical problems, technical solutions and advantageous effects to be solved by the present invention be more clearly understood, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain
The present invention is not intended to limit the present invention.
An embodiment of the present invention provides a kind of quantum dot inks, including at least one quanta point material and at least one alkyl
The boiling point of benzene class organic solvent, the alkyl benzene organic solvent is 180 DEG C -320 DEG C, the knot of the alkyl benzene organic solvent
Structure is as shown in general structure I：
Wherein, the R is alkyl substituent, and the n is the positive integer of 1-6, and the total number of carbon atoms >=4 of all R.
Specifically, in quantum dot ink of the embodiment of the present invention, the alkyl benzene organic solvent may be used a kind of or more
Kind, meanwhile, the quanta point material can also use one or more.
Specifically, the structure of the alkyl benzene organic solvent is as shown in general structure I, including one or more alkyl take
Dai Ji, and in all alkyl substituents, the total number of carbon atoms of R needs >=4.As the carbon atom < 4 of R, the boiling of the alkylbenzene
Point is less than 180 DEG C, is unsatisfactory for InkJet printing processes requirement.
The boiling point of the alkyl benzene organic solvent is 180 DEG C -320 DEG C.In the embodiment of the present invention, based on inkjet printing
It needs, the too high or too low film layer for being all unfavorable for forming fine and close arrangement of solvent temperature.Specifically, when solvent boiling point is too low, print
Brush ink is during inkjet printing prepares film layer, solvent volatilization, to influence to print overall performance (such as dispersibility of ink
Energy, viscosity, surface tension), it cannot be satisfied inkjet printing requirement；When solvent boiling point is excessively high, need to borrow in follow-up film forming procedure
It helps high temperature that could remove, the performance for printing the solute component such as quanta point material in ink can be influenced in this way, such as cause quantum dot
Fluorescent quenching.The alkyl benzene organic solvent of suitable boiling point provided in an embodiment of the present invention has and is suitable for inkjet printing
Suitable volatile performance when quantum dot material layer is prepared, to advantageously form the film layer of fine and close arrangement.
In the embodiment of the present invention, range of viscosities of the alkyl benzene organic solvent at 25 DEG C is 1-40mPa.s, 25
Surface tension at DEG C is 24-50mN/m, disclosure satisfy that current ink-jet printer, printing technology want viscosity and surface tension
It asks, realizes the inkjet printing mode of quanta point material layer, obtain the quantum dot with pixel-matrix, high-resolution, electroexcitation
Luminescent layer.
Specific preferred, in the embodiment of the present invention, the alkyl benzene organic solvent includes 1,3,5- triethylbenzenes, 1,2,
4- triethylbenzenes, 1- methyl-2-propyls benzene, 1- methyl -3- propylbenzenes, 1,2- dimethyl -3- ethylo benzenes, 1,3- diisopropyls
Benzene, 1,4- diisopropyl benzenes, 1,3,5- triisopropylbenzenes, 1,4- di-n-butyls benzene, 4- t-butyltoluenes, 4- tert-butyls neighbour two
Toluene, n-amylbenzene, isoamyl benzene, new penta benzene, positive hexyl phenenyl, 1- methyl -3- hexyl benzenes, 1- methyl -4- hexyl benzenes, 1,4- bis-
At least one of (2- ethylhexyls benzene), n-heptylphenyl, n-octyl, n-nonyl benzene, positive decyl benzene, undecyl benzene.On
Stating each solvent can be applied in combination, and when being applied in combination, and a combination thereof form and adding proportion can be arbitrarily arranged.
In the embodiment of the present invention, in order to assign the suitable dispersion performance of the quantum dot ink, viscosity and surface tension, with
So that obtained quantum dot ink, which is more suitable for inkjet printing, prepares quantum dot film layer.Preferably, with quantum dot ink
The weight percentage of water is 100% meter, and the weight percentage of the alkyl benzene organic solvent is 80%-99.9%.Tool
Body, the weight percentage of the alkyl benzene organic solvent can be 80%, 85%, 90%, 95%, 99.9%.
Matrix component of the quanta point material as the quantum dot ink, can be II-IV races semiconducting compound,
At least one of III-V semiconductor compound, group IV-VI semiconducting compound, I-II-VI2 races semiconductor nano.Tool
Body, II-IV races semiconducting compound includes but not limited to CdS, CdSe, CdS/ZnS, CdSe/ZnS, CdSe/CdS/
At least one of ZnS；The III-V semiconductor compound, the group IV-VI semiconducting compound include but not limited to
At least one of GaAs, InP, PbS/ZnS, PbSe/ZnS.
The composition form of the quanta point material is unrestricted, can be doped or non-doped quanta point material, wherein
Doping refers to that other doped chemicals are also contained in the inside of the quanta point material.Wherein, the ligand of the quantum dot includes acid
At least one of ligand, mercaptan ligand, amine ligand, (oxygen) Phosphine ligands, phosphatide, soft phosphatide, polyvinylpyridine etc..As tool
Body embodiment, the acid ligand is at least one of ten acid, undecenoic acid, tetradecylic acid, oleic acid, stearic acid；The mercaptan is matched
Body is at least one of eight alkyl hydrosulfides, lauryl mercaptan, Stearyl mercaptan；The amine ligand includes oleyl amine, 18
At least one of amine, eight amine；(oxygen) Phosphine ligands are at least one of tri octyl phosphine, trioctylphosphine oxide (TOPO).
In the embodiment of the present invention, the structure type of the quantum dot is unrestricted, and it is mixed that uniform mixed type, gradient can be used
Close type, core-shell structure copolymer type or union type.
Quanta point material printing described in the embodiment of the present invention is suitable for inkjet printing quantum dot light emitting layer, when the quantum dot
When water content is higher in ink, since shipwreck is in volatilization or removal, it is easy to remain in the quantum dot ink, and then influence shape
At the quantum dot light emitting layer performance.In view of this, quantum dot described in the embodiment of the present invention is preferably oil-soluble quantum dot.
As particular preferred embodiment, the average-size of the quantum dot is 2-20nm.
It is in terms of 100% by the gross weight of the quantum dot ink, the preferred weight percentage composition of the quantum dot is 0.01-
20.0%, as specific embodiment, the dosage of the quantum dot can be 0.01%, 0.1%, 0.2%, 0.5%, 0.8%,
1.0%, the concrete numerical values such as 2.0%, 4.0%, 5.0%, 8.0%, 10.0%, 12.0%, 15.0%, 18.0%, 20.0% contain
Amount.Further, as a preferred embodiment, the weight percentage of the quantum dot is 0.5-10%.
In the embodiment of the present invention, can only using the alkyl benzene organic solvent as the exclusive solvents of quantum dot ink,
Can also be on the basis of using alkyl benzene organic solvent, addition secondary organic solvent forms mixed solvent, carrys out quantum
The balance of the dispersion performance and viscosity of point ink.
In order to further adjust the viscosity and surface tension of the quantum dot ink, in addition to quanta point material and alkyl benzene
Outside organic solvent, small molecule Organic Alcohol can also be added.Preferably, the quantum dot ink further includes the small of molecular weight≤540
Molecular Organic Alcohol.The small molecule Organic Alcohol can be evaporated with the methods of vacuum drying or heat drying from dicyandiamide solution.
Specific preferred, the small molecule Organic Alcohol includes cyclopentanol, cyclopentyl carbinol, 2- pentamethylene ethyl alcohol, 2- methyl
Cyclopentanol, benzyl alcohol, benzyl carbinol, methyl cyclohexanol, 2 methyl cyclohexanol, 3 methyl cyclohexanol, 4- methyl rings ethyl alcohol, hexamethylene first
Alcohol, hexamethylene ethyl alcohol, 2- phenylethanols, 2- hexyl -3- octyl -4,5- dihydroxy octylcyclohexanes.
The viscosity of quantum dot ink provided in an embodiment of the present invention passes through the dosage and tool of the alkyl benzene organic solvent
Body type is regulated and controled.Quantum dot ink provided in an embodiment of the present invention, viscosity under the conditions of 25 DEG C are 1-40mPa.s, tool
Body can be 1mPa.s, 5mPa.s, 10mPa.s, 15mPa.s, 20mPa.s, 25mPa.s, 30mPa.s, 35mPa.s, 40mPa.s.
The surface tension of the quantum dot ink is 24.0-50.0mN/m, thus can be glibly from printing in ink jet printing process
Nozzle discharges, and has preferable film forming characteristics.Specifically, state quantum dot ink surface tension can be 24.0mN/m,
25.0mN/m、30.0mN/m、35.0mN/m、40.0mN/m、45.0mN/m、50.0mN/m。
Quantum dot ink provided in an embodiment of the present invention, post-processing of the alkyl benzene organic solvent in inkjet printing
It can be removed by heating and/or vacuum mode in journey, not interfere with the quanta point material film layer that inkjet printing is prepared, such as
Quantum dot light emitting layer.
As a specific embodiment, the quantum dot ink is by red CdSe/ZnS quantum dots and 1,3,5- triisopropyls
Benzene forms, and is in terms of 100% described 1 by the quantum dot ink total weight, and the weight percentage of 3,5- triisopropylbenzenes is
90%, the weight percentage of the red CdSe/ZnS quantum dots is 10%.
As another specific embodiment, the quantum dot ink is by green CdZnSe/CdZnS quantum dots and positive hexyl phenenyl
Composition, and be in terms of 100% by the quantum dot ink total weight, the weight percentage of the positive hexyl phenenyl is 90%, described
The weight percentage of green CdZnSe/CdZnS quantum dots is 10%.
As another specific embodiment, the quantum dot ink is by green CdZnSe/CdZnS quantum dots and mixed solvent
Composition, the mixed solvent are the mixed solvent that positive hexyl phenenyl and 3 methyl cyclohexanol form, and total with the quantum dot ink
Weight is 100% meter, and the weight percentage of the positive hexyl phenenyl is 45%, the weight percentage of the 3 methyl cyclohexanol
It is 45%, the weight percentage of the green CdZnSe/CdZnS quantum dots is 10%.
In conjunction with Fig. 1, quantum dot ink described in the embodiment of the present invention can realize its application by ink jet printing device, can use
In making electronic device, especially light emitting diode with quantum dots display screen.Specifically, inkjet printing basic functional principle is to control
Ink is ejected under the control of device processed and designated position on the substrate is landed from small nozzle, eventually forms and set in advance
The pattern counted.As shown in Figure 1, sealing container 120 carries quantum dot ink 100 provided in an embodiment of the present invention, printing
Under the driving of controller 200, by printing nozzle 110 by quantum dot ink 100 be ejected into can X, Y-direction movement objective table
On substrate 130 on 240, specific pattern is formed, wherein objective table 240 has been placed in the driving of 200 article carrying platform of print control unit
On.210 be positive pressure generator in figure, under the control of print control unit, is passed through in closed container 120 by pipeline 220, to drive
Dynamic ink reaches nozzle 110 by woven hose 140.300 be holder in figure, for fixed support nozzle 110, closed container 120,
Objective table 240 etc..
Quantum dot ink provided in an embodiment of the present invention can be to avoid additive using alkyl benzene as organic solvent
Introducing, the influence to obtained quantum dot film charge transport ability.Alkyl benzene containing above-mentioned specific structure is organic molten
The quantum dot ink of agent can not only make quanta point material be uniformly dispersed in printing ink, storage-stable；Moreover, containing upper
The quantum dot ink of the alkyl benzene organic solvent of specific structure is stated, surface tension is within the scope of 24-50mN/m, in 25-35
Viscosity under the conditions of DEG C is 1-40.0mPa.s, and suitable viscosity, surface tension disclosure satisfy that current ink-jet printer and printing work
The requirement of skill condition, realize quanta point material layer inkjet printing mode, obtain with pixel-matrix, high-resolution, it is electroluminescent swash
The quantum dot light emitting layer of hair.Meanwhile quantum dot ink provided in an embodiment of the present invention has volatile performance appropriate (boiling point is
180 DEG C -320 DEG C), organic molecule can be volatilized completely by way of vacuum evaporation or heating evaporation, form fine and close arrangement
Quantum dot film layer is transmitted to which charge between quanta point material be effectively ensured, reduces threshold voltage, improve efficiency.To sum up, of the invention
The quantum dot ink that embodiment provides has proper viscosity, surface tension, dispersion performance, volatile performance, is particularly suitable for ink-jet and beats
The standby quanta point material layer of printing, such as prepares the quantum dot light emitting layer in light emitting diode by inkjet printing methods.
It is illustrated with reference to specific embodiment.
Embodiment 1
A kind of quantum dot ink, by red CdSe/ZnS quantum dots and 1,3,5- triisopropylbenzenes form, and with the amount
Son point ink total weight is 100% meter, and the weight percentage of described 1,3,5- triisopropylbenzenes is 90%, the red
The weight percentage of CdSe/ZnS quantum dots is 10%.
A kind of preparation method of quanta point material film, includes the following steps：
S11. each component is weighed according to the formula of above-mentioned quantum dot ink；
S12. provide 500mL single-necked flasks, in the case of stirring, successively add red CdSe/ZnS quantum dots and 1,3,
5- triisopropylbenzenes, are stirred 60min, obtain quantum dot ink.
Use the viscosity of the quantum dot ink of the formulated in combination for 3.6~4.2mPa.s, surface tension is 28~32mN/m.
Embodiment 2
A kind of quantum dot ink is made of green CdZnSe/CdZnS quantum dots and positive hexyl phenenyl, and with the quantum dot
Ink total weight is 100% meter, and the weight percentage of the positive hexyl phenenyl is 90%, the green CdZnSe/CdZnS quantum
The weight percentage of point is 10%.
A kind of preparation method of quanta point material film, includes the following steps：
S21. each component is weighed according to the formula of above-mentioned quantum dot ink；
S22., 500mL high-density polyethylene bottles are provided, in the case of stirring, add green CdZnSe/CdZnS amounts successively
Son point and positive hexyl phenenyl, are stirred 60min, obtain quantum dot ink.
Use the viscosity of the quantum dot ink of the formulated in combination for 1.6~2.2mPa.s, surface tension is 29~33mN/m.
Embodiment 3
A kind of quantum dot ink, is made of green CdZnSe/CdZnS quantum dots and mixed solvent, and the mixed solvent is
Positive hexyl phenenyl and 3 methyl cyclohexanol composition mixed solvent, and by the quantum dot ink total weight be 100% in terms of, it is described just
The weight percentage of hexyl benzene is 45%, and the weight percentage of the 3 methyl cyclohexanol is 45%, the green
The weight percentage of CdZnSe/CdZnS quantum dots is 10%.
A kind of preparation method of quanta point material film, includes the following steps：
S31. each component is weighed according to the formula of above-mentioned quantum dot ink；
S32., 500mL high-density polyethylene bottles are provided and add green CdZnSe/CdZnS quantum successively in the case of stirring
Point and positive hexyl phenenyl after being stirred 60min, are added 3 methyl cyclohexanol, obtain quantum dot ink.
Use the viscosity of the quantum dot ink of the formulated in combination for 4.0~5.0mPa.s, surface tension is 26~31mN/m.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of quantum dot ink, which is characterized in that organic including at least one quanta point material and at least one alkyl benzene
The boiling point of solvent, the alkyl benzene organic solvent is 180 DEG C -320 DEG C, the structure such as structure of the alkyl benzene organic solvent
Shown in general formula I：
Wherein, the R is alkyl substituent, and the n is the positive integer of 1-6, and the total number of carbon atoms >=4 of all R.
2. quantum dot ink as described in claim 1, which is characterized in that the alkyl benzene organic solvent includes 1,3,5- tri-
Ethylo benzene, 1,2,4- triethylbenzenes, 1- methyl-2-propyls benzene, 1- methyl -3- propylbenzenes, 1,2- dimethyl -3- ethylo benzenes, 1,
3- diisopropyl benzenes, 1,4- diisopropyl benzenes, 1,3,5- triisopropylbenzenes, 1,4- di-n-butyls benzene, 4- t-butyltoluenes, 4-
Tert-butyl ortho-xylene, n-amylbenzene, isoamyl benzene, new penta benzene, positive hexyl phenenyl, 1- methyl -3- hexyl benzenes, 1- methyl -4- oneself
In base benzene, 1,4- bis- (2- ethylhexyls benzene), n-heptylphenyl, n-octyl, n-nonyl benzene, positive decyl benzene, undecyl benzene
It is at least one.
3. quantum dot ink as described in claim 1, which is characterized in that the quanta point material accounts for quantum dot ink total weight
0.01-20%；And/or
The alkyl benzene organic solvent accounts for the 80-99.9% of quantum dot ink total weight.
4. quantum dot ink as described in any one of claims 1-3, which is characterized in that the quantum dot ink further includes molecular weight
≤ 540 small molecule Organic Alcohol.
5. quantum dot ink as claimed in claim 4, which is characterized in that the small molecule Organic Alcohol includes cyclopentanol, ring penta
Base methanol, 2- pentamethylene ethyl alcohol, 2- methylcyclopentanols, benzyl alcohol, benzyl carbinol, methyl cyclohexanol, 2 methyl cyclohexanol, 3- methyl
Cyclohexanol, 4- methyl rings ethyl alcohol, cyclohexanemethanol, hexamethylene ethyl alcohol, 2- phenylethanols, 2- hexyl -3- octyl -4,5- dihydroxy octyl rings
Hexane.
6. quantum dot ink as described in claim 1, which is characterized in that viscosity of quantum dot ink under the conditions of 25 DEG C
For 1-40mPa.s.
7. quantum dot ink as described in claim 1, which is characterized in that surface of quantum dot ink under the conditions of 25 DEG C
Tension is 24-50mN/m.
8. quantum dot ink as described in claim 1, which is characterized in that the quantum dot ink is by red CdSe/ZnS quantum
Point and 1,3,5- triisopropylbenzenes composition, and be described 1,3,5- triisopropyls in terms of 100% by the quantum dot ink total weight
The weight percentage of benzene is 90%, and the weight percentage of the red CdSe/ZnS quantum dots is 10%.
9. quantum dot ink as described in claim 1, which is characterized in that the quantum dot ink is by green CdZnSe/CdZnS
Quantum dot and positive hexyl phenenyl composition, and be the weight percent of the positive hexyl phenenyl in terms of 100% by the quantum dot ink total weight
Content is 90%, and the weight percentage of the green CdZnSe/CdZnS quantum dots is 10%.
10. quantum dot ink as described in claim 1, which is characterized in that the quantum dot ink is by green CdZnSe/
CdZnS quantum dots and mixed solvent composition, the mixed solvent are the mixed solvent that positive hexyl phenenyl and 3 methyl cyclohexanol form,
And by the quantum dot ink total weight be in terms of 100%, the weight percentage of the positive hexyl phenenyl is 45%, the 3- methyl
The weight percentage of cyclohexanol is 45%, and the weight percentage of the green CdZnSe/CdZnS quantum dots is 10%.
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| US11555149B2 (en) | 2019-09-11 | 2023-01-17 | Nanosys, Inc. | Nanostructure ink compositions for inkjet printing |
| TWI816562B (en) * | 2022-09-28 | 2023-09-21 | 隆達電子股份有限公司 | Quantum dot oil-based ink and pattern recognition system |
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| CN109735168A (en) * | 2018-03-23 | 2019-05-10 | 广东聚华印刷显示技术有限公司 | Cycloalkane alcohol is preparing the application in quantum dot ink, quantum dot ink and preparation method thereof as additive |
| CN109735168B (en) * | 2018-03-23 | 2022-03-18 | 广东聚华印刷显示技术有限公司 | Application of cyclanol as additive in preparation of quantum dot ink, quantum dot ink and preparation method of quantum dot ink |
| US11555149B2 (en) | 2019-09-11 | 2023-01-17 | Nanosys, Inc. | Nanostructure ink compositions for inkjet printing |
| CN113122054A (en) * | 2019-12-30 | 2021-07-16 | Tcl集团股份有限公司 | Preparation method of ink and quantum dot film |
| TWI816562B (en) * | 2022-09-28 | 2023-09-21 | 隆達電子股份有限公司 | Quantum dot oil-based ink and pattern recognition system |
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