CN108624136A - Inorganic nano material prints ink and preparation method thereof - Google Patents
Inorganic nano material prints ink and preparation method thereof Download PDFInfo
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- CN108624136A CN108624136A CN201710153203.8A CN201710153203A CN108624136A CN 108624136 A CN108624136 A CN 108624136A CN 201710153203 A CN201710153203 A CN 201710153203A CN 108624136 A CN108624136 A CN 108624136A
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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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- 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
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Abstract
The present invention provides a kind of inorganic nano materials to print ink, including at least one inorganic nano material and at least one sulfuric acid ester organic solvent, and the structure of the sulfuric acid ester organic solvent is as shown in general structure I or general formula II：Wherein, the R1、R2It is independently chosen from H, C1‑30Aliphatic, aromatic group, and the R1、R2It is asynchronously H；The R3 is the aliphatic of C1 30, aromatic group.
Description
Technical field
The invention belongs to electroluminescent diode display technology fields more particularly to a kind of inorganic nano material to print ink
And preparation method thereof.
Background technology
Not only it is different from microcosmic atom, molecular cluster, but also different from macroscopical body phase material, inorganic nano-particle material is a kind of
Between macroscopic solid and intermolecular metastable intermediate state substance.Due to the surface atom and body phase total atom number of inorganic nano-particle
The ratio between increased dramatically with the reduction of grain size, so that it is shown strong bulk effect, quantum effect, skin effect and macro
See quantum tunneling effect.There is tranmitting frequency to change with change in size, emit line width, shine for quantum dot (QD) luminescent material
Quantum efficiency is relatively high and the photostability of superelevation and the characteristic of solution treatment.In recent years, quantum dot light emitting material is in LED
The fields such as illumination, liquid crystal display have played prodigious effect, and quantum dot substitutes traditional fluorescent powder, be effectively improved LED with
And the colour gamut of liquid crystal display.Recently, quantum dot light emitting material as the light emitting diode with quantum dots (QLED) of luminescent layer in solid-state
The fields such as illumination, FPD show preferable application prospect, receive the extensive concern of academia and industrial circle.
The solution processing properties of quantum dot allow quantum dot light emitting layer to pass through spin coating, blade coating, injection, inkjet printing etc.
It is prepared by various ways.Opposite front several method, inkjet printing technology can be accurately in the desired amount by quantum dot light emitting material
Deposit it is in place, allow semi-conducting material uniform deposition formed film layer.Quantum dot light emitting layer, material are prepared using which
Utilization rate is very high, and simplifies manufacture craft, is easy universal volume production, reduces whole production cost.Ink-jet printing technology is current
The generally acknowledged effective ways that can solve light emitting diode with quantum dots (QLED) device large scale manufacture problem.
But the quantum dot ink currently used for inkjet printing is essentially all that quantum dot is directly dispersing in solvent to make
At.However the solvent that relative distribution is good, such as toluene, chloroform, obtained quantum dot ink viscosity is very small, and boiling point is also very
It is low；When quantum dot is dissolved in the larger solvent of some viscosity, when such as long alkane alcohols solvent, the dispersion effect of quantum dot is again very
Difference causes the quantum dot film thickness prepared inconsistent, and uniformity is very poor.And quantum dot ink is different from traditional ink, has exhausted
The introducing of the polymeric additive of edge property often reduces the charge transport ability of film, has to the photoelectric properties of device negative
Face is rung, and limits its extensive use in the opto-electronic device.In order to ensure effective transmission of charge between quantum layer, quantum dot film
Layer material will be few as possible the unnecessary organic material of introducing.Therefore, there is an urgent need to research and develop one kind to improve viscosity and have
The preferably solvent of dispersibility is stablized out of ink so that quantum dot ink disclosure satisfy that inkjet printing requirement, and stabilization is sprawled, and is done
Dry uniform, film forming is uniform.
Invention content
The purpose of the present invention is to provide a kind of inorganic nano materials to print ink and preparation method thereof, it is intended to solve existing
Inorganic nano material viscosity of printing ink, boiling point and dispersion effect the problem of being difficult to take into account.
The invention is realized in this way a kind of inorganic nano material prints ink, including at least one inorganic nano material
With at least one sulfuric acid ester organic solvent, structure such as general structure I or the general formula II of the sulfuric acid ester organic solvent
It is shown：
Wherein, the R1、R2It is independently chosen from H, C1-30Aliphatic, aromatic group, and the R1、R2It is asynchronously H；Institute
State R3For C1-30Aliphatic, aromatic group.
And a kind of preparation method of inorganic nano material film, include the following steps：
The formula that ink is printed according to above-mentioned inorganic nano material weighs each component；
Inorganic nano material is dissolved in organic solvent and forms inorganic nano material printing ink, wherein is described organic molten
At least contain a kind of sulfuric acid ester organic solvent in agent；
Ink is printed in deposited on supports inorganic nano using inkjet printing, is handled by heat drying, obtains inorganic receive
Rice material film.
Inorganic nano material provided by the invention prints ink, using with shown in general structure I or general formula II
Sulfuric acid ester can not only make inorganic nano material be uniformly dispersed in printing ink, storage-stable as organic solvent.And
And the inorganic nano material of the sulfuric acid ester organic solvent containing above-mentioned specific structure prints ink, surface tension is in 20-
Within the scope of 80mN/m, viscosity under the conditions of 25-35 DEG C is 0.5-50.0mPa.s, disclosure satisfy that current ink-jet printer to viscous
The requirement of degree and surface tension is realized the inkjet printing mode of inorganic nano material layer, is obtained with pixel-matrix, high-resolution
The inorganic nano material luminescent layer of rate, electroexcitation.Meanwhile inorganic nano material printing ink provided by the invention has suitably
Volatile performance, the organic molecule volatilization in inorganic nano material layer prepared by printing can be made complete, form fine and close arrangement
Film layer, transmitted to which charge between inorganic nano material be effectively ensured, reduce threshold voltage, improved efficiency and (such as promote electronics, sky
Cave may be coextruded radioluminescence).To sum up, inorganic nano material printing ink provided by the invention has proper viscosity, table
Face tension, dispersion performance, volatile performance, particularly suitable inkjet printing prepares inorganic nano material layer, such as by inkjet printing side
Inorganic nano material luminescent layer in legal system preparation optical diode.
The preparation method of inorganic nano material film provided by the invention, only need to be by inorganic nano material in organic solvent
It is fully dispersed, inorganic nano material is made and prints ink, and then progress inkjet printing, drying can be obtained on carrier, method
Simply, it is easy to accomplish standardization control.
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 inorganic nano material print ink, including at least one inorganic nano material and
At least one sulfuric acid ester organic solvent, the structure such as general structure I of the sulfuric acid ester organic solvent or general formula II institute
Show：
Wherein, the R1、R2It is independently chosen from H, C1-30Aliphatic, aromatic group, and the R1、R2It is asynchronously H；Institute
State R3For C1-30Aliphatic, aromatic group.
Specifically, inorganic nano material of embodiment of the present invention printing ink contains organic solvent, the organic solvent can be with
Contain only sulfuric acid ester organic solvent, or sulfuric acid ester organic solvent and the mixing that other secondary organic solvents are formed are molten
Agent.The sulfuric acid ester organic solvent may be used it is one or more, meanwhile, the inorganic nano material can also use one kind
Or it is a variety of.
As a kind of specific implementation situation, the organic solvent further includes secondary organic solvent, and with the inorganic nano
The total weight that material prints ink is 100% meter, and each component content is as follows：
Inorganic nano material 0.01-20%；
Sulfuric acid ester organic solvent 0.01-99.9%；
Secondary organic solvent 0-99.8%.
Specifically, the boiling point of the sulfuric acid ester organic solvent is 150 DEG C -350 DEG C.In the embodiment of the present invention, based on spray
The needs of ink printing, the too high or too low film layer for being all unfavorable for forming fine and close arrangement of solvent temperature.Specifically, working as solvent boiling point mistake
When low, printing ink is during inkjet printing prepares film layer, solvent volatilization, to influence to print the overall performance of ink
(such as dispersion performance, viscosity, surface tension), cannot be satisfied inkjet printing requirement；When solvent boiling point is excessively high, formed a film subsequently
Cheng Zhongxu could be removed by high temperature, can influence the performance for printing the solute component such as inorganic nano material in ink in this way, such as
Cause the fluorescent quenching of quantum dot.The sulfuric acid ester organic solvent of suitable boiling point provided in an embodiment of the present invention has suitable
Suitable volatile performance when inkjet printing prepares inorganic nano material layer, to advantageously form the film layer of fine and close arrangement.
In the embodiment of the present invention, range of viscosities of the sulfuric acid ester organic solvent at 25 DEG C is 0.5cPs-30cPs,
Surface tension at 25 DEG C is 20-80mN/m.So that using the inorganic nano material of the sulfuric acid ester organic solvent
The surface tension of ink is printed within the scope of 20-80mN/m, is 0.5-50.0mPa.s in 25 DEG C of viscosity, be disclosure satisfy that at present
Requirement of the ink-jet printer to viscosity and surface tension is realized the inkjet printing mode of inorganic nano material layer, is obtained with picture
The inorganic nano material luminescent layer of vegetarian refreshments battle array, high-resolution, electroexcitation.
Specifically, in the embodiment of the present invention, the C1-30Aliphatic, aromatic group can be with or without substituted
Group, as the C1-30Aliphatic, aromatic group is when containing substituent group, one or more substituent groups can be contained.Institute
It includes alkyl, aryl, nitro, cyano, amino ,-N (R ') (R "), halogen, hydroxyl, carboxyl, ester group, ether, carbonyl to state substituent group
Base, alkenyl, alkynyl, naphthenic base, alkoxy, aryl, heteroaryl, aryloxy group, heteroaryloxy, alkoxy carbonyl group, perfluoroalkyl, perfluor
Alkoxy, thio alkoxy ,-S (O)2- N (R ') (R ") ,-C (=O)-N (R ') (R "), (R ') (R ") alkyl, (R ') (R ")
Positive alkoxy, (R ') (R ") alkyl, aryloxy alkyl ,-S (O)sAryl ,-S (O)sHeteroaryl, silyl-group,
In, the value range of the s is 0-2, and the R ' and R " is independently chosen from alkyl, naphthenic base, aryl, substitution alkyl, substitution cycloalkanes
Base, substituted aryl.
Further, the alkyl includes branched alkyl, straight chained alkyl, naphthenic base.Preferably, the branched alkyl, straight chain
Alkyl, naphthenic base C1-25Alkyl, i.e., carbon atom number be 1-25.Containing alkyl substituent group, the phosphate can be increased
The dissolubility of class organic solvent.
Wherein, the alkyl include but not limited to methyl, ethyl, propyl, isopropyl, isobutyl group, sec-butyl, tertiary butyl,
Amyl, isopentyl, neopentyl, cyclopenta, hexyl, cyclohexyl, isohesyl.
The aryl include but not limited to phenyl, xenyl, triphenyl, benzo naphthalene, anthryl, phenalene, phenanthryl,
Fluorenyl, pyrenyl, Qu Ji, base, azulenyl；And/or
It the heteroaryl but is not limited to include dibenzothiophenes, dibenzofurans, furans, thiophene, benzofuran, benzo thiophene
Pheno, pyrazoles, imidazoles, triazole, isoxazole, thiazole, oxadiazoles, oxatriazole, dioxazole, thiadiazoles, pyridine, is rattled away at carbazole
Piperazine, pyrimidine, pyrazine, triazine, oxazines, oxathiazine, oxadiazine, indoles, benzimidazole, indazole, indoxazine,
Benzoxazoles, benzisoxazole, benzothiazole, quinoline, isoquinolin, cinnoline, quinazoline, quinoxaline, naphthalene, phthalein,
Pteridine, xanthene, acridine, azophenlyene, phenthazine, phenoxazine, dibenzoselenophene, benzoselenophene,
benzofuropyridine、indolocarbazole、pyridylindole、pyrrolodipyridine、
furodipyridine、benzothienopyridine、thienodipyridine、benzoselenophenopyridine
The substituent group formed with selenophenodipyridine.
As particular preferred embodiment, the sulfuric acid ester organic solvent includes dimethyl suflfate, dithyl sulfate, sulfuric acid
Dipropyl, dibutyl sulfate, diamyl sulfates, sulfuric acid diisopropyl ester, sulfuric acid two (2- ethyloctanyls) ester, sulfuric acid list cetyl
Ester, sulfuric acid list stearyl.
In the embodiment of the present invention, in order to assign the suitable dispersion performance of inorganic nano material printing ink, viscosity and
Surface tension, so that obtained inorganic nano material printing ink is more suitable for inkjet printing and prepares inorganic nano material film
Layer.Preferably, it is in terms of 100% to print the weight percentage of ink by the inorganic nano material, and the sulfuric acid ester is organic
The weight percentage of solvent is 0.01%-99.9%.Specifically, the weight percentage of the sulfuric acid ester organic solvent can
It is 0.01%, 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 99.9%.
In the embodiment of the present invention, ink can be only printed using the sulfuric acid ester organic solvent as inorganic nano material
Exclusive solvents, can also be on the basis of using sulfuric acid ester organic solvent, and addition secondary organic solvent forms mixed solvent, comes
Adjust the balance of the dispersion performance and viscosity of inorganic nano material printing ink.
The secondary organic solvent can select the organic solvent conventionally used for preparing inorganic nano material pad-ink, packet
It includes but is not limited to 3- phenoxytoluenes, decahydronaphthalenes, detergent alkylate.And the secondary organic solvent has with the sulfuric acid ester
The mixed solvent that solvent is formed, boiling point should be at 350 DEG C hereinafter, ink performance when to meet inkjet printing.The present invention is implemented
In example, the weight percentage that ink is printed by the inorganic nano material is the weight of the secondary organic solvent in terms of 100%
Percentage composition is 0-99.8%, specifically, the weight percentage of the secondary organic solvent can be 0,0.01%, 5%,
10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 99.8%.
The inorganic nano material prints the matrix component of ink as the inorganic nano material, can be IV races, II-
VI races, II-V races, iii-v, III-VI races, group IV-VI, I-III-VI races, II-IV-VI races, II-IV-V races binary or more
At least one of element, semiconductor compound.Specifically, the inorganic nano material can be selected from but not limited to CdSe, CdS,
At least one of CdTe, ZnO, ZnSe, ZnS, ZnTe, HgS, HgSe, HgTe, CdZnSe；It is also selected from but is not limited to
InAs、InP、InN、GaN、InSb、InAsP、InGaAs、GaAs、GaP、GaSb、AlP、AlN、AlAs、AlSb、CdSeTe、
At least one of ZnCdSe.In addition, the inorganic nano material can also be perovskite nanometer particle material, particularly preferably send out
Light perovskite nano-particle, metal nano particle material, metal oxide nanoparticles material and combinations thereof.
The composition form of the inorganic nano material is unrestricted, can be doped or non-doped inorganic nano material,
Wherein, doping refers to that other doped chemicals are also contained in the inside of the inorganic nano material.Specifically, the inorganic nano material
Material can be quanta point material.Wherein, the ligand of the quantum dot include sour ligand, mercaptan ligand, amine ligand, (oxygen) Phosphine ligands,
At least one of phosphatide, soft phosphatide, polyvinylpyridine etc..As specific embodiment, the acid ligand is ten acid, hendecene
At least one of acid, tetradecylic acid, oleic acid, stearic acid；The mercaptan ligand is eight alkyl hydrosulfides, lauryl mercaptan, 18
At least one of alkyl hydrosulfide；The amine ligand includes at least one of oleyl amine, octadecylamine, eight amine；(oxygen) phosphine is matched
Body is 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.
Inorganic nano material printing described in the embodiment of the present invention is suitable for inkjet printing quantum dot light emitting layer, when described inorganic
When water content is higher in nano material printing ink, since shipwreck is in volatilization or removal, it is easy residual in the quantum dot ink
It stays, and then influences the performance of the quantum dot light emitting layer formed.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 4-15%.
The viscosity of inorganic nano material printing ink provided in an embodiment of the present invention, passes through the sulfuric acid ester organic solvent
Dosage and concrete type regulated and controled.Inorganic nano material provided in an embodiment of the present invention prints ink, in 25-35 DEG C of condition
Under viscosity be 0.5-50.0mPa.s, concretely 1mPa.s, 5mPa.s, 10mPa.s, 15mPa.s, 20mPa.s,
25mPa.s、30mPa.s、35mPa.s、40mPa.s、45mPa.s、50mPa.s；Further, the viscosity of the quantum dot ink
Preferably 25 DEG C of viscosity is preferably 1-30.0mPa.s, and more preferably viscosity under the conditions of 25-35 DEG C is 1-15.0mPa.s.
The surface tension of the inorganic nano material printing ink is 20.0-80.0mN/m, to be flowed in ink jet printing process
It freely is discharged from printing head, and there is preferable film forming characteristics.Specifically, stating the surface of inorganic nano material printing ink
Power can be 20.0mN/m, 30.0mN/m, 40.0mN/m, 50.0mN/m, 60.0mN/m, 70.0mN/m, 80.0mN/m.
Inorganic nano material provided in an embodiment of the present invention prints ink, and the sulfuric acid ester organic solvent is in inkjet printing
Last handling process in can be removed by heating and/or pressure reducing mode, do not interfere with that inkjet printing is prepared inorganic receives
Rice film layer, such as quantum dot light emitting layer.
Inorganic nano material provided in an embodiment of the present invention prints ink, using with general structure I or general formula II
Shown in sulfuric acid ester as organic solvent, inorganic nano material can not only be made to be uniformly dispersed, stablize in printing ink
Storage.Moreover, printing ink, surface tension using the inorganic nano material of the sulfuric acid ester organic solvent of above-mentioned specific structure
Within the scope of 20-80mN/m, it is 0.5-50.0mPa.s in 25-35 DEG C of viscosity, disclosure satisfy that current ink-jet printer to viscosity
With the requirement of surface tension, realize inorganic nano material layer inkjet printing mode, obtain with pixel-matrix, high-resolution,
The inorganic nano material luminescent layer of electroexcitation.Meanwhile inorganic nano material printing ink provided by the invention is with appropriate
Volatile performance, the organic molecule volatilization that can to print in the inorganic nano material layer prepared is complete, forms densification arrangement
Film layer is transmitted to which charge between inorganic nano material be effectively ensured, reduces threshold voltage, improve efficiency and (such as promote electronics, hole
It may be coextruded radioluminescence).To sum up, inorganic nano material printing ink provided in an embodiment of the present invention has appropriate viscous
Degree, surface tension, dispersion performance, volatile performance, particularly suitable inkjet printing prepare inorganic nano material layer, are such as beaten by ink-jet
Impression method prepares the inorganic nano material luminescent layer in light emitting diode.
And the embodiment of the present invention additionally provides a kind of preparation method of inorganic nano material film, includes the following steps：
S01. the formula that ink is printed according to above-mentioned inorganic nano material weighs each component；
S02. inorganic nano material is dissolved in organic solvent and forms inorganic nano material printing ink, wherein is described to have
Contain sulfuric acid ester organic solvent in solvent；
S03. it uses inkjet printing to print ink in deposited on supports inorganic nano, is handled by heat drying, obtain nothing
Machine nano material film.
Specifically, in above-mentioned steps S01, the formula and its preferred ingredient, content of the inorganic nano material printing ink
It has hereinbefore stated, in order to save length, details are not described herein again.
In above-mentioned steps S02, inorganic nano material is dissolved in organic solvent, discrete form is unrestricted, can be used and stirs
The mode of mixing is realized.
In above-mentioned steps S03, by selecting suitable ink-jet printer to carry out inkjet printing, receive deposited on supports is inorganic
Then processing solvent flashing is dried to inorganic nano printing ink in rice printing ink.The mode of the drying process
Including heating drying, cooling and drying and it is dried under reduced pressure.Preferably, the temperature of the heat drying is 30-180 DEG C, heating time
For 0-30min；The temperature of the cooling and drying is 0-20 DEG C；The vacuum degree being dried under reduced pressure is 1 × 10-6Torr is to normal pressure.
Through being dried to obtain inorganic nano material film, such as quantum dot film.It is suitable to be dried mode, it can be described in efficient removal
Under the premise of sulfuric acid ester organic solvent, ensure that the inorganic nano material such as quanta point material is not damaged.
The inorganic nano material film dry film formed through inkjet printing, thickness is preferably 10-100nm；Further, through spray
The inorganic nano material film thickness of dry film that ink printing is formed is 20-50nm.
The preparation method of inorganic nano material film provided in an embodiment of the present invention, only need to be by inorganic nano material in sulfuric acid
Fully dispersed rear inorganic nano material obtained prints ink in based organic solvent, and inkjet printing, drying are carried out on carrier
It can be obtained, method is simple, it is easy to accomplish standardization control.
It is illustrated with reference to specific embodiment.
Embodiment 1
A kind of inorganic nano material printing ink, the weight percentage that ink is printed with the inorganic nano material are
100% meter, includes each component of following weight percentage：The red CdSe/ZnS quantum dots and 95% that 5% oleyl amine is stablized
Dithyl sulfate solvent.
A kind of preparation method of inorganic nano material film, includes the following steps：
S11. the formula that ink is printed according to above-mentioned inorganic nano material weighs each component；
S12., 500mL single-necked flasks are provided, in the case of stirring, add the red CdSe/ZnS amounts that oleyl amine is stablized successively
Sub- point, dithyl sulfate solvent, are stirred 30min, obtain quantum dot printing ink composition；
S13. by the quantum dot printing ink composition by ink-jet printer the inkjet printing on carrier, be printed as 20 ×
The red quantum dot layer of 30um, 200 × 200ppi of resolution ratio.100 DEG C, nitrogen flow vacuum 1 × 10 are heated on hot plate-3Torr
Lower volatile dry 30min, obtains monochromatic quantum dot luminescent layer.
Embodiment 2
A kind of inorganic nano material printing ink, the weight percentage that ink is printed with the inorganic nano material are
100% meter, includes each component of following weight percentage：The green CdZnSe/CdZnS's and 87% that 13% oleyl amine is stablized is mixed
The diamyl sulfates and weight percentage that bonding solvent, the in the mixed solvent, including weight percentage are 80% are 7%
3- phenoxytoluene solvents.
A kind of preparation method of inorganic nano material film, includes the following steps：
S21. the formula that ink is printed according to above-mentioned inorganic nano material weighs each component；
S22., 500mL high-density polyethylene bottles are provided, in the case of stirring, add the green that oleyl amine is stablized successively
CdZnSe/CdZnS, 3- phenoxytoluene and diamyl sulfates solvent, are stirred 30min, obtain quantum dot printing ink composition；
S23. by the quantum dot printing ink composition by ink-jet printer the inkjet printing on carrier, be printed as 20 ×
The green quantum dot layer of 30um, 200 × 200ppi of resolution ratio.Cool to 20 DEG C, vacuum 1 × 10-6Volatile dry under Torr
30min obtains monochromatic quantum dot luminescent layer.
Embodiment 3
A kind of inorganic nano material printing ink, the weight percentage that ink is printed with the inorganic nano material are
100% meter, includes each component of following weight percentage：Blue CdS/CdZnS, the green CdZnSe/ that 10% oleyl amine is stablized
CdZnS contains with red CdSe/ZnS quantum azeotropic mixture and 90% mixed solvent, the in the mixed solvent, including weight percent
Amount for 50% detergent alkylate, weight percentage be 35% decahydronaphthalenes and weight percentage be 5% to sulfuric acid
Diisopropyl ester.
A kind of preparation method of inorganic nano material film, includes the following steps：
S31. the formula that ink is printed according to above-mentioned inorganic nano material weighs each component；
S32., 500mL high-density polyethylene bottles are provided, in the case of stirring, add the blue CdS/ that oleyl amine is stablized successively
CdZnS, green CdZnSe/CdZnS, red CdSe/ZnS quantum dots, detergent alkylate, decahydronaphthalenes, to sulfuric acid diisopropyl ester,
It is stirred 30min, obtains quantum dot printing ink composition；
S33. by the quantum dot printing ink composition by ink-jet printer the inkjet printing on carrier, be printed as 20 ×
Blue, green, the red side-by-side quantum dot layers of 30um, 200 × 200ppi of resolution ratio.Be heated on hot plate 50 DEG C, it is true
Sky 1 × 10-6Volatile dry 30min under Torr obtains three primary colours quantum dot light emitting layer.
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 inorganic nano material prints ink, which is characterized in that including at least one inorganic nano material and at least one
Sulfuric acid ester organic solvent, the structure of the sulfuric acid ester organic solvent is as shown in general structure I or general formula II：
Wherein, the R1、R2It is independently chosen from H, C1-30Aliphatic, aromatic group, and the R1、R2It is asynchronously H；The R3
For C1-30Aliphatic, aromatic group.
2. inorganic nano material as described in claim 1 prints ink, which is characterized in that the inorganic nano material accounts for inorganic
Nano material prints the 0.01-20% of total weight of printing ink；And/or
The sulfuric acid ester organic solvent accounts for the 0.01-99.9% of inorganic nano material printing total weight of printing ink.
3. inorganic nano material as claimed in claim 1 or 2 prints ink, which is characterized in that the sulfuric acid ester is organic molten
The boiling point of agent is 150 DEG C -350 DEG C.
4. inorganic nano material as claimed in claim 1 or 2 prints ink, which is characterized in that the sulfuric acid ester is organic molten
Range of viscosities of the agent at 25 DEG C is 0.5cPs-50cPs, and the surface tension at 25 DEG C is 20-80mN/m.
5. inorganic nano material as claimed in claim 1 or 2 prints ink, which is characterized in that the C1-30Aliphatic, virtue
Fragrant race's group contains one or more substituent groups, and the substituent group includes alkyl, aryl, nitro, cyano, amino ,-N (R ')
(R "), halogen, hydroxyl, carboxyl, ester group, ether, carbonyl, alkenyl, alkynyl, naphthenic base, alkoxy, aryl, heteroaryl, fragrant oxygen
Base, heteroaryloxy, alkoxy carbonyl group, perfluoroalkyl, perfluoro alkoxy, thio alkoxy ,-S (O)2- N (R ') (R ") ,-C (=O)-
N (R ') (R "), (R ') (R ") alkyl, (R ') (R ") positive alkoxy, (R ') (R ") alkyl, aryloxy alkyl ,-S (O)sVirtue
Base ,-S (O)sHeteroaryl, silyl-group, wherein the value range of the s is 0-2, and the R ' and R " is independently chosen from alkane
Base, naphthenic base, aryl, substitution alkyl, substituted cycloalkyl, substituted aryl.
6. inorganic nano material as claimed in claim 5 prints ink, which is characterized in that the alkyl include branched alkyl,
Straight chained alkyl, naphthenic base.
7. inorganic nano material as claimed in claim 5 prints ink, which is characterized in that the alkyl include methyl, ethyl,
Propyl, isopropyl, isobutyl group, sec-butyl, tertiary butyl, amyl, isopentyl, neopentyl, cyclopenta, hexyl, cyclohexyl, dissident
Base；And/or
The aryl includes phenyl, xenyl, triphenyl, benzo naphthalene, anthryl, phenalene, phenanthryl, fluorenyl, pyrenyl, bends
Base, base, azulenyl；And/or
The heteroaryl includes dibenzothiophenes, dibenzofurans, furans, thiophene, benzofuran, benzothiophene, carbazole, pyrrole
Azoles, imidazoles, triazole, isoxazole, thiazole, oxadiazoles, oxatriazole, dioxazole, thiadiazoles, pyridine, pyridazine, pyrimidine, pyrrole
Piperazine, triazine, oxazines, oxathiazine, oxadiazine, indoles, benzimidazole, indazole, indoxazine, benzoxazoles,
Benzisoxazole, benzothiazole, quinoline, isoquinolin, cinnoline, quinazoline, quinoxaline, naphthalene, phthalein, pteridine, oxa-
Anthracene, acridine, azophenlyene, phenthazine, phenoxazine, dibenzoselenophene, benzoselenophene,
benzofuropyridine、indolocarbazole、pyridylindole、pyrrolodipyridine、
furodipyridine、benzothienopyridine、thienodipyridine、benzoselenophenopyridine
The substituent group formed with selenophenodipyridine.
8. inorganic nano material as claimed in claim 1 or 2 prints ink, which is characterized in that the sulfuric acid ester is organic molten
Agent includes dimethyl suflfate, dithyl sulfate, dipropyl sulfate, dibutyl sulfate, diamyl sulfates, sulfuric acid diisopropyl ester, sulphur
Sour two (2- ethyloctanyls) esters, sulfuric acid list cetyl ester, sulfuric acid list stearyl.
9. a kind of preparation method of inorganic nano material film, includes the following steps：
The formula for printing ink according to any inorganic nano materials of claim 1-8 weighs each component；
Inorganic nano material is dissolved in organic solvent and forms inorganic nano material printing ink, wherein in the organic solvent
At least contain a kind of sulfuric acid ester organic solvent；
Ink is printed in deposited on supports inorganic nano using inkjet printing, by being dried, it is thin to obtain inorganic nano material
Film.
10. the preparation method of inorganic nano material film as claimed in claim 9, which is characterized in that the drying process
Mode includes heating dry, cooling and drying and is dried under reduced pressure, wherein the temperature of the heat drying is 30-180 DEG C, when heating
Between be 0-30min；
The temperature of the cooling and drying is 0-20 DEG C；
The vacuum degree being dried under reduced pressure is 1 × 10-6Torr is to normal pressure.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105820662A (en) * | 2016-04-26 | 2016-08-03 | Tcl集团股份有限公司 | Quantum dot ink and preparation method thereof |
| CN106118242A (en) * | 2016-07-28 | 2016-11-16 | Tcl集团股份有限公司 | A kind of quantum dot ink of inkjet printing and preparation method thereof |
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2017
- 2017-03-15 CN CN201710153203.8A patent/CN108624136A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105820662A (en) * | 2016-04-26 | 2016-08-03 | Tcl集团股份有限公司 | Quantum dot ink and preparation method thereof |
| CN106118242A (en) * | 2016-07-28 | 2016-11-16 | Tcl集团股份有限公司 | A kind of quantum dot ink of inkjet printing and preparation method thereof |
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| 魏文德: "《有机化工原料大全 中卷》", 31 January 1999, 化学工业出版社 * |
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