CN106833621B - A kind of OLED blue light material unfolded using graphene as base and preparation method - Google Patents
A kind of OLED blue light material unfolded using graphene as base and preparation method Download PDFInfo
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Abstract
The present invention provides a kind of OLED blue light material unfolded using graphene as base and preparation method, use phenylene ethylene class material as connecting material, pass through the method for mechanical lapping, the blue light material containing anthracene class group is introduced on the phenyl ring of phenylene ethylene class material under the effect of the catalyst, then it is added together to make the phenylene ethylene class material containing blue light group with graphene layer template with graphene layer stacking, unfold in plane.The present invention overcomes use blue light material anthracene small molecule etc. to be introduced into PPV in the form of group, promote the unconspicuous defect of illumination effect of its blue light, the technical effect of blue light efficiency is substantially improved, furthermore, this composite material synthesis technology is fairly simple, and the low raw-material cost used, it can satisfy industrialization development demand.
Description
Technical field
The present invention relates to organic photoelectrical material fields, and in particular to a kind of OLED blue light material unfolded using graphene as base
Material and preparation method.
Background technique
Organic Light Emitting Diode (OLED) is a kind of display technology developed by Kodak and possess patent, this technology
Use organic polymer materials as the semiconductor material in light emitting diode.Polymeric material can be natural, it is also possible to people
Work synthesis, possible size is very big, it is also possible to small-sized.OLED display technology widely apply to mobile phone, DV,
The fields such as DVD player, personal digital assistant, laptop, automobile audio and TV.OLED has energy conservation, fast response time, face
Colour-stable, the features such as environmental suitability is strong, radiationless, the service life is long, light weight, thin thickness.Due to photoelectric communication in recent years and more
The rapid development of field of media, organic optoelectronic material have become the core of modern society's information and electronic industry.OLED is shown
For device there are one the widescreen visual angle for being up to 160 degree, operating voltage is two to ten volts.In recent years, it is ground to what OLED shone
Study carefully and is concentrated mainly between the electron rich organic matter containing phenyl ring.According to existing research, poly-phenylene vinylene (ppv) (PPV) class material is mesh
The best electroluminescent material of preceding performance, the performance for emitting green light and orange light reach higher effect, but blue-light-emitting
There are also larger gaps with application in terms of efficiency and stability, and which has limited application of the PPV class material in terms of total colouring.
Have blue light material anthracene etc. be used for PPV in the form of group at present, promote its blue light effect, and carry out on phenyl ring alkyl or
The modification of person's alkoxy improves the properties of PPV, but the promotion of blue light effect is not obvious.How the blue light performance of PPV is improved
It is one of important topic in the art.
Chinese invention patent application number 201210171926.8 discloses a kind of copolymer Blue-light emitting host material, its preparation side
Method and application；It is alkyl, the phenylene ethylene base of C1~C20 that the copolymer Blue-light emitting host material, which has R,.The copolymerization that the invention provides
Object Blue-light emitting host material, in structure, it is an excellent electron-transport unit, and have preferably that anthracene azoles, which contains that there are two nitrogen,
Rigidity and flatness, while also just having good thermal stability；PPV is a kind of important electroluminescent polymer, phenyl ring
On can carry out alkyl or alkoxy modification, so as to improve the solubility property and filming performance of copolymer, by PPV main chain
Upper introducing anthracene azoles, solves the disadvantage that PPV, to be conducive to the raising of the luminous efficiency of organic electroluminescence device.But it should
Compound synthesis is complicated, and according to the difference of block, shining has color poor controllability.
Chinese invention patent application number 200610130060.0 disclose quanta polymer white light EL part and
Preparation method, invention luminescent material based on blue light ZnS quantum dot feux rouges PPV compound, on the surface electro-conductive glass ITO
It is utilized respectively rotary coating, raw material is successively made to certain thickness film, the device being had the following structure: ITO/ZnS:
PPV(Y NM)/PBD(Z NM)/AL(X NM).The device is not necessarily to prepare the luminescent layer of three kinds of primary colours respectively, and distinguishes them
Cumbersome photoetching process etc. is carried out, has the characteristics that preparation process is simple, reproducible.But the introducing of the quantum dot and PPV
Between there are problems that lattice mismatch, the lattice of these mismatches will form defect level, influence luminous intensity, therefore, it is necessary into
One step is improved.
Chinese invention patent application number 200610130072.3 discloses a kind of electroluminescent hair of flexible quanta polymer white light
Optical device and preparation method thereof, invention luminescent material based on blue light ZnS quantum dot feux rouges PPV compound, in PET substrate
The surface ITO be utilized respectively rotary coating and vacuum vapour deposition, raw material is successively made to certain thickness film, obtain have such as
The device of flowering structure: ITO/ZnS:PPV (Y NM)/ALQ3 (ZNM)/AL (XNM).The device without preparing three kinds of primary colours respectively
Luminescent layer, and they are carried out with cumbersome photoetching process etc. respectively has simple preparation process, flexible, reproducible
The characteristics of.But the invention, only using substrate material flexible instead of rigid material, there is no connect in quantum dot and PPV
It is improved in touching, therefore there are still the factors that defect level influences luminous efficiency and color.
According to above-mentioned, poly-phenylene vinylene (ppv) (PPV) class material is the best electroluminescent material of performance at present, is emitted green
The performance of light and orange light reaches higher effect, but there are also larger differences with application in terms of efficiency and stability for blue-light-emitting
Away from which has limited application of the PPV class material in terms of total colouring.The anthracene small molecule device standby as blue light emitting unit style
Although having simple device architecture, this kind of compound also has that thermal stability is good, luminous efficiency is high, since small molecule is easy
Itself intrinsic defect of crystallization, causes device lifetime shorter.Have and introduces blue light material anthracene small molecule etc. in the form of group
In PPV, for promoting the illumination effect of its blue light, while alkyl or alkoxy modification are carried out on phenyl ring, improve each of PPV
Item performance, but since amount of the anthracene small molecule of grafting in system is limited to very much, this blue light effect promotion is not obvious.Therefore,
The present invention wishes the characteristic that can be sprawled with plane by graphene, starts with from Material cladding angle, solves current technology and asks
Topic.
Summary of the invention
The best electroluminescent material of performance for current poly-phenylene vinylene (ppv) (PPV) class material, transmitting green light and
The performance of orange light reaches higher effect, but blue-light-emitting in terms of efficiency and stability with application there are also larger gap,
Which has limited application of the PPV class material in terms of total colouring.And it uses blue light material anthracene small molecule etc. and is drawn in the form of group
Enter in PPV, for promoting the illumination effect of its blue light, while carrying out alkyl or alkoxy modification on phenyl ring, improve PPV's
Properties, but since amount of the anthracene small molecule of grafting in system is limited to very much, this blue light effect promotion is not obvious.Cause
This, the present invention proposes a kind of OLED blue light material unfolded using graphene as base and preparation method, using phenylene ethylene class material
Material is introduced on the phenyl ring of phenylene ethylene class material contained under the effect of the catalyst as raw material by the method for mechanical lapping
Then the blue light material of anthracene class group is added together to make the phenylene ethylene class material containing blue light group with graphene layer stacking
Material unfolds in plane using graphene layer as template, blue light efficiency is substantially improved.This composite material synthesis technology is fairly simple,
And the low raw-material cost used, it can satisfy industrialization development demand.
The present invention provides a kind of preparation method of OLED blue light material unfolded using graphene as base, which is characterized in that
The method, as connecting material, is introduced on the phenyl ring of phenylene ethylene class material using phenylene ethylene class material and contains anthracene class base
Then the blue light material of group is added together with graphene layer stacking, comprising the following steps:
(1) 8-10 mass parts graphite powder, 0.5-3 mass parts intercalator and 37-65 mass parts phenylene ethylene class material are existed
Dispersion 10-25 min is mixed with the revolving speed of 600-1200 rpm in high-speed mixer, obtains pre-composition；
(2) organic matter and its derivative that 15-50 mass parts contain anthracene class group are added in organic solvent and are configured to contain
There is the organic solution of anthracene class group, the pre-composition that step (1) is obtained and the organic solution mixing containing anthracene class group are stirred
It processing is mixed, is poured into rectangular or cylindrical mold, is stood to still, obtains mixed solution, it is described containing anthracene class group
The concentration of organic solution be 0.1-1.5 mol/L, catalyst is added into mixed solution, stirs evenly, the catalyst with
The ratio of mixed solution is 1:100-2000；
(3) mixed solution of step (2) is subjected to cryogenic freezing processing, grinding is added in the solid mixture after it will freeze
Machine grinding, graphite are removed by high shear into graphene, and compound is brought rapidly up to 70-150 DEG C under mechanical action, are swashed
Catalyst living makes the organic matter containing anthracene class group and phenylene ethylene class material that coupling reaction occur, simultaneously because graphene with
Organic matter and phenylene ethylene class material containing anthracene class group are tangled since polyelectron electrostatic interaction attracts each other, in the hand of spiral
Under the action of power, it is twisted into the segment distorted-structure of non-co-planar, it is compound to form anthracene doping phenylene ethylene class material-graphene
Material；
(4) anthracene doping phenylene ethylene class material-graphene composite material that step (3) obtain is put into deionized water,
Due to the effect of surface tension, the anthracene doping phenylene ethylene class material-graphene composite material is unfolded naturally in water surface, together
When in anthracene doping phenylene ethylene class material and graphene directly there is the attraction of electrophilicity, it is dry by simply filtering, obtain
The OLED blue light material unfolded using graphene as base being layering.
Preferably, the graphite powder is compact crystal shape graphite powder, crystalline graphite powder, expanded graphite powder or expansible graphite
One or more of powder.
Preferably, the intercalator is graphene oxide quantum dot, graphene quantum dot, single layer MoS2With single layer black phosphorus material
One or more of mixtures of material.
Preferably, the selected organic solvent include chloroform, benzene, toluene, o-dichlorohenzene, paracide, paraxylene and
Any one among meta-xylene or two or more combinations.
Preferably, the catalyst is the mixture of organic palladium and organophosphorus ligand, and organic palladium and organophosphorus ligand
Mass ratio is 1:2.5-9；The organic palladium is palladium acetate or three (two argon benzylacetones) two palladiums, and the organophosphorus ligand is three
O-tolyl phosphine or 2- dicyclohexyl phosphine -2 ', 6 '-dimethoxy-biphenyls.
Preferably, the setting temperature of the cryogenic freezing processing is-20-- 40 DEG C.
Preferably, grinder is rotated with the revolving speed of 100-1200rpm, and temperature setting is room temperature.
On the other hand, the present invention provides a kind of OLED blue light material unfolded using graphene as base, the blue light material
It prepares according to the method described above.
By a kind of OLED blue light material unfolded using graphene as base prepared by the present invention and the anthracene that is commonly grafted
Poly-phenylene vinylene (ppv) material property is compared to relatively as shown in Table 1:
Table one
A kind of OLED blue light material unfolded using graphene as base and preparation method protrude compared with prior art
The characteristics of and excellent effect be:
1, the present invention uses phenylene ethylene class material as connecting material, by the method for mechanical lapping, in catalyst
It acts on and introduces the blue light material containing anthracene class group on the phenyl ring of lower phenylene ethylene class material, be then added in graphene layer stacking
Together to make the phenylene ethylene class material containing blue light group with graphene layer template, unfolds in plane, indigo plant is substantially improved
Light efficiency.
2, the present invention has stronger mechanical flexibility skeleton and higher electron mobility using using graphene itself
Characteristic, and there is very high stability, solve the low disadvantage of anthracene micromolecular block coupling efficiency.
3, for the present invention using graphite as raw material, abundance is cheap, has apparent economic benefit.
4, the entire production process of the present invention is simple, easy to operate, cleaning, environmental protection, and the luminescent device of preparation has that brightness is high, the longevity
Order long feature.
Specific embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
(1) by 8 mass parts compact crystal shape graphite powders, 0.5 mass parts graphene quantum dot and 42 mass parts phenylene ethylenes
Class material mixes 25 min of dispersion in a high speed mixer with the revolving speed of 600 rpm, obtains pre-composition；
(2) organic matter and its derivative that 49.5 mass parts contain anthracene class group are added and are configured to concentration in chloroform and are
0.1 mol/L contains the organic solution of anthracene class group, the pre-composition that step (1) is obtained and the organic matter containing anthracene class group
Solution mixing, stir process is poured into rectangular or cylindrical mold, stands to still, obtains mixed solution, molten to mixing
Be added catalyst in liquid, the ratio of catalyst and mixed solution is 1:100, catalyst be palladium acetate and tri-o-tolyl phosphine according to
The mixture that mass ratio 1:2.5 is mixed is stirred continuously uniformly；
(3) mixed solution of step (2) is subjected to cryogenic freezing processing, the setting temperature of cryogenic freezing processing is -20
DEG C, grinder grinding is added in the solid mixture after it will freeze, and grinder is rotated with the revolving speed of 1200rpm, and temperature setting is
Room temperature, graphite are removed by high shear into graphene, and compound is brought rapidly up to 70 DEG C under mechanical action, activation catalysis
Agent makes the organic matter containing anthracene class group and phenylene ethylene class material that coupling reaction occur, simultaneously because graphene and containing anthracene
The organic matter and phenylene ethylene class material of class group are tangled since polyelectron electrostatic interaction attracts each other, in the work of hand of spiral power
Under, it is twisted into the segment distorted-structure of non-co-planar, anthracene is formed and adulterates phenylene ethylene class material-graphene composite material；
(4) anthracene doping phenylene ethylene class material-graphene composite material that step (3) obtain is put into deionized water,
Due to the effect of surface tension, the anthracene doping phenylene ethylene class material-graphene composite material is unfolded naturally in water surface, together
When in anthracene doping phenylene ethylene class material and graphene directly there is the attraction of electrophilicity, it is dry by simply filtering, obtain
The OLED blue light material unfolded using graphene as base being layering.
Graphene by test preparation is that the OLED blue light material performance parameter that base unfolds is as shown in Table 2.
Embodiment 2
(1) by 8 mass parts crystalline graphite powders, 1 mass parts graphene oxide quantum dot and 51 mass parts phenylene ethylene class materials
Material mixes 20 min of dispersion in a high speed mixer with the revolving speed of 800 rpm, obtains pre-composition；
(2) organic matter and its derivative that 40 mass parts contain anthracene class group being added in toluene and being configured to concentration is 0.5
Mol/L contains the organic solution of anthracene class group, the pre-composition that step (1) is obtained and the organic solution containing anthracene class group
Mixing, stir process is poured into rectangular or cylindrical mold, stands to still, mixed solution is obtained, into mixed solution
The ratio of addition catalyst, catalyst and mixed solution is 1:400, and catalyst is palladium acetate and tri-o-tolyl phosphine according to quality
Than the mixture that 1:4 is mixed, it is stirred continuously uniformly；
(3) mixed solution of step (2) is subjected to cryogenic freezing processing, the setting temperature of cryogenic freezing processing is -25
DEG C, grinder grinding is added in the solid mixture after it will freeze, and grinder is rotated with the revolving speed of 1000rpm, and temperature setting is
Room temperature, graphite are removed by high shear into graphene, and compound is brought rapidly up to 90 DEG C under mechanical action, activation catalysis
Agent makes the organic matter containing anthracene class group and phenylene ethylene class material that coupling reaction occur, simultaneously because graphene and containing anthracene
The organic matter and phenylene ethylene class material of class group are tangled since polyelectron electrostatic interaction attracts each other, in the work of hand of spiral power
Under, it is twisted into the segment distorted-structure of non-co-planar, anthracene is formed and adulterates phenylene ethylene class material-graphene composite material；
(4) anthracene doping phenylene ethylene class material-graphene composite material that step (3) obtain is put into deionized water,
Due to the effect of surface tension, the anthracene doping phenylene ethylene class material-graphene composite material is unfolded naturally in water surface, together
When in anthracene doping phenylene ethylene class material and graphene directly there is the attraction of electrophilicity, it is dry by simply filtering, obtain
The OLED blue light material unfolded using graphene as base being layering.
Graphene by test preparation is that the OLED blue light material performance parameter that base unfolds is as shown in Table 2.
Embodiment 3
(1) by 9 mass parts expanded graphite powder, 1 mass parts single layer MoS2With 60 mass parts phenylene ethylene class materials in high speed
20 min of dispersion are mixed with the revolving speed of 800 rpm in mixing machine, obtain pre-composition；
(2) organic matter and its derivative that 30 mass parts contain anthracene class group are added and are configured to concentration in paraxylene and are
0.9mol/L contains the organic solution of anthracene class group, the pre-composition that step (1) is obtained and the organic matter containing anthracene class group
Solution mixing, stir process is poured into rectangular or cylindrical mold, stands to still, obtains mixed solution, molten to mixing
It is added catalyst in liquid, the ratio of catalyst and mixed solution is 1:800, and catalyst is three (two argon benzylacetones) two palladiums and three
The mixture that o-tolyl phosphine is mixed according to mass ratio 1:5 is stirred continuously uniformly；
(3) mixed solution of step (2) is subjected to cryogenic freezing processing, the setting temperature of cryogenic freezing processing is -25
DEG C, grinder grinding is added in the solid mixture after it will freeze, and grinder is rotated with the revolving speed of 800rpm, and temperature setting is room
Temperature, graphite are removed by high shear into graphene, and compound is brought rapidly up to 120 DEG C under mechanical action, activation catalysis
Agent makes the organic matter containing anthracene class group and phenylene ethylene class material that coupling reaction occur, simultaneously because graphene and containing anthracene
The organic matter and phenylene ethylene class material of class group are tangled since polyelectron electrostatic interaction attracts each other, in the work of hand of spiral power
Under, it is twisted into the segment distorted-structure of non-co-planar, anthracene is formed and adulterates phenylene ethylene class material-graphene composite material；
(4) anthracene doping phenylene ethylene class material-graphene composite material that step (3) obtain is put into deionized water,
Due to the effect of surface tension, the anthracene doping phenylene ethylene class material-graphene composite material is unfolded naturally in water surface, together
When in anthracene doping phenylene ethylene class material and graphene directly there is the attraction of electrophilicity, it is dry by simply filtering, obtain
The OLED blue light material unfolded using graphene as base being layering.
Graphene by test preparation is that the OLED blue light material performance parameter that base unfolds is as shown in Table 2.
Embodiment 4
(1) by 10 mass parts crystalline graphite powders, 3 mass parts graphene oxide quantum dots and graphene quantum dot mixture and
37 mass parts phenylene ethylene class materials mix 20 min of dispersion in a high speed mixer with the revolving speed of 800 rpm, obtain pre-composition；
(2) organic matter and its derivative that 50 mass parts contain anthracene class group being added in toluene and being configured to concentration is 1.0
Mol/L contains the organic solution of anthracene class group, the pre-composition that step (1) is obtained and the organic solution containing anthracene class group
Mixing, stir process is poured into rectangular or cylindrical mold, stands to still, mixed solution is obtained, into mixed solution
The ratio of addition catalyst, catalyst and mixed solution is 1:1000, and catalyst is palladium acetate and tri-o-tolyl phosphine according to matter
The mixture mixed than 1:4 is measured, is stirred continuously uniformly；
(3) mixed solution of step (2) is subjected to cryogenic freezing processing, the setting temperature of cryogenic freezing processing is -40
DEG C, grinder grinding is added in the solid mixture after it will freeze, and grinder is rotated with the revolving speed of 1000rpm, and temperature setting is
Room temperature, graphite are removed by high shear into graphene, and compound is brought rapidly up to 120 DEG C under mechanical action, and activation is urged
Agent makes the organic matter containing anthracene class group and phenylene ethylene class material that coupling reaction occur, simultaneously because graphene with contain
The organic matter and phenylene ethylene class material of anthracene class group are tangled since polyelectron electrostatic interaction attracts each other, in hand of spiral power
Under effect, it is twisted into the segment distorted-structure of non-co-planar, anthracene is formed and adulterates phenylene ethylene class material-graphene composite wood
Material；
(4) anthracene doping phenylene ethylene class material-graphene composite material that step (3) obtain is put into deionized water,
Due to the effect of surface tension, the anthracene doping phenylene ethylene class material-graphene composite material is unfolded naturally in water surface, together
When in anthracene doping phenylene ethylene class material and graphene directly there is the attraction of electrophilicity, it is dry by simply filtering, obtain
The OLED blue light material unfolded using graphene as base being layering.
Graphene by test preparation is that the OLED blue light material performance parameter that base unfolds is as shown in Table 2.
Embodiment 5
(1) by 8 mass parts crystalline graphite powders and expansible graphite powder mixture, 3 mass parts single layer black phosphorus and 65 mass parts
Phenylene ethylene class material mixes 20 min of dispersion in a high speed mixer with the revolving speed of 800 rpm, obtains pre-composition；
(2) benzene, toluene, o-dichlorohenzene mixed liquor is added in organic matter and its derivative that 24 mass parts contain anthracene class group
In to be configured to concentration be the 1.5 mol/L organic solution that contains anthracene class group, by pre-composition that step (1) obtains and contain anthracene
The organic solution of class group mixes, and stir process is poured into square dies, stands to still, obtains mixed solution, to mixed
It closes and catalyst is added in solution, the ratio of catalyst and mixed solution is 1:2000, and catalyst is palladium acetate and 2- dicyclohexyl
The mixture that phosphine -2 ', 6- dimethoxy-biphenyl is mixed according to mass ratio 1:9 is stirred continuously uniformly；
(3) mixed solution of step (2) is subjected to cryogenic freezing processing, the setting temperature of cryogenic freezing processing is -40
DEG C, grinder grinding is added in the solid mixture after it will freeze, and grinder is rotated with the revolving speed of 400rpm, and temperature setting is room
Temperature, graphite are removed by high shear into graphene, and compound is brought rapidly up to 150 DEG C under mechanical action, activation catalysis
Agent makes the organic matter containing anthracene class group and phenylene ethylene class material that coupling reaction occur, simultaneously because graphene and containing anthracene
The organic matter and phenylene ethylene class material of class group are tangled since polyelectron electrostatic interaction attracts each other, in the work of hand of spiral power
Under, it is twisted into the segment distorted-structure of non-co-planar, anthracene is formed and adulterates phenylene ethylene class material-graphene composite material；
(4) anthracene doping phenylene ethylene class material-graphene composite material that step (3) obtain is put into deionized water,
Due to the effect of surface tension, the anthracene doping phenylene ethylene class material-graphene composite material is unfolded naturally in water surface, together
When in anthracene doping phenylene ethylene class material and graphene directly there is the attraction of electrophilicity, it is dry by simply filtering, obtain
The OLED blue light material unfolded using graphene as base being layering.
Graphene by test preparation is that the OLED blue light material performance parameter that base unfolds is as shown in Table 2.
Table two
Claims (8)
1. a kind of preparation method for the OLED blue light material unfolded using graphene as base, which is characterized in that the method uses
Phenylene ethylene class material introduces the blue light material containing anthracene class group as connecting material on the phenyl ring of phenylene ethylene class material
Then material is added together with graphene layer stacking, comprising the following steps:
(1) by 8-10 mass parts graphite powder, 0.5-3 mass parts intercalator and 37-65 mass parts phenylene ethylene class material in high speed
Dispersion 10-25min is mixed with the revolving speed of 600-1200rpm in mixing machine, obtains pre-composition；
(2) organic matter and its derivative that 15-50 mass parts contain anthracene class group are added in organic solvent and are configured to containing anthracene
The organic solution of class group, the pre-composition that step (1) is obtained and the organic solution containing anthracene class group mix, at stirring
Reason, is poured into rectangular or cylindrical mold, stands to still, obtains mixed solution, described to contain the organic of anthracene class group
The concentration of object solution be 0.1-1.5mol/L, catalyst is added into mixed solution, stirs evenly, the catalyst with mix it is molten
The ratio of liquid is 1:100-2000；
(3) mixed solution of step (2) is subjected to cryogenic freezing processing, is ground grinder is added in the solid mixture after freezing
Mill, graphite are removed by high shear into graphene, and compound is brought rapidly up to 70-150 DEG C under mechanical action, and activation is urged
Agent makes the organic matter containing anthracene class group and phenylene ethylene class material that coupling reaction occur, simultaneously because graphene with contain
The organic matter and phenylene ethylene class material of anthracene class group are tangled since polyelectron electrostatic interaction attracts each other, in hand of spiral power
Under effect, it is twisted into the segment distorted-structure of non-co-planar, anthracene is formed and adulterates phenylene ethylene class material-graphene composite wood
Material；
(4) anthracene doping phenylene ethylene class material-graphene composite material that step (3) obtain is put into deionized water, due to
The effect of surface tension, the anthracene doping phenylene ethylene class material-graphene composite material are unfolded naturally in water surface, while
Directly there is the attraction of electrophilicity in anthracene doping phenylene ethylene class material and graphene, dry by simply filtering, and obtain layer by layer
The OLED blue light material of superposition unfolded using graphene as base.
2. a kind of preparation method of OLED blue light material unfolded using graphene as base according to claim 1, special
Sign is that the graphite powder is compact crystal shape graphite powder, one in crystalline graphite powder, expanded graphite powder or expansible graphite powder
Kind is several.
3. a kind of preparation method of OLED blue light material unfolded using graphene as base according to claim 1, special
Sign is that the intercalator is one kind of graphene oxide quantum dot, graphene quantum dot, single layer MoS2 and single layer black phosphorus material
Or several mixtures.
4. a kind of preparation method of OLED blue light material unfolded using graphene as base according to claim 1, special
Sign is that the organic solvent includes among chloroform, benzene, toluene, o-dichlorohenzene, paracide, paraxylene and meta-xylene
Any one or two or more combinations.
5. a kind of preparation method of OLED blue light material unfolded using graphene as base according to claim 1, special
Sign is that the catalyst is the mixture of organic palladium and organophosphorus ligand, and the mass ratio of organic palladium and organophosphorus ligand is
1:2.5-9；The organic palladium is palladium acetate or three (two argon benzylacetones) two palladiums, and the organophosphorus ligand is tri-o-tolyl phosphine
Or 2- dicyclohexyl phosphine -2 ', 6 '-dimethoxy-biphenyls.
6. a kind of preparation method of OLED blue light material unfolded using graphene as base according to claim 1, special
Sign is that the setting temperature of the cryogenic freezing processing is -20 to -40 DEG C.
7. a kind of preparation method of OLED blue light material unfolded using graphene as base according to claim 1, special
Sign is that grinder is rotated with the revolving speed of 100-1200rpm, and temperature setting is room temperature.
8. a kind of OLED blue light material unfolded using graphene as base, which is characterized in that the blue light material is wanted according to right
The described in any item methods of 1-7 are asked to prepare.
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Effective date of registration: 20190808 Address after: 710065 Room 101, Block A, 1199 No. 3 Kunchi Road, Xiliu Street, Xi'an High-tech Zone, Shaanxi Province Patentee after: Xi'an Polymer Light Technology Co., Ltd. Address before: Qingyang District of Chengdu City, Sichuan province 610091 Dragon Industrial Port East Road 4 Patentee before: Chengdu Xinkeli Chemical Sci-Tech Co., Ltd. |