CN105576151B - A kind of flexible el composite and preparation method thereof - Google Patents
A kind of flexible el composite and preparation method thereof Download PDFInfo
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- CN105576151B CN105576151B CN201610097487.9A CN201610097487A CN105576151B CN 105576151 B CN105576151 B CN 105576151B CN 201610097487 A CN201610097487 A CN 201610097487A CN 105576151 B CN105576151 B CN 105576151B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
- H10K30/865—Intermediate layers comprising a mixture of materials of the adjoining active layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Abstract
The invention discloses a kind of flexible el composite and preparation method thereof, the composite includes being covered with the flexible matrix of conductive layer, and dielectric layer is covered with the conductive layer, and luminescent layer is covered with the dielectric layer；Wherein, the luminescent layer is the mixture of luminescent material, Graphene and PVK.The present invention prepares simple, PVK and Graphene are introduced in luminescent layer, luminescent layer is coated in flexible matrix will not be damaged, now commercial various phosphors are directly used as luminescent material, lighted by being electrically excited with exchange, energy-conservation, long lifespan, stable luminescence, can bend, fold, shear, flexible.The composite can be made various device materials, can be adjustable as electric source material, glow color, and luminescent material is widely applicable, with good application prospect, be particularly suitable for the demand of current environmental development.
Description
Technical field
The present invention relates to a kind of flexible el composite and preparation method thereof, belong to technical field of energy material.
Background technology
Electronics is excited to excitation state from ground state after material energy absorption in some way, is returned to from excitation state afterwards
The phenomenon of photon is sent during ground state luminous.According to the difference of excitaton source, it is diversified, main Types to light
Have：Luminescence generated by light, cathode-ray luminescence, electroluminescent, thermoluminescence, light release luminous, radioluminescence etc..Electroluminescent refer to
The two ends of luminescent material add a voltage, are released being electrically excited during lower electronics returns ground state from ground state transition to excitation state
The phenomenon of photon, the main luminescent material of current electroluminescent includes inorganic and organic two major class, and phosphor is due to it
Stability high has important application in lighting field, and the phosphor of main application includes rare earth material and semiconductor material
Material.
The property of luminescent material directly affects the stability of el light emitting device and uses, and common el light emitting device is all
That luminescent material is coated on rigid planar solid substrates to use, such as ito glass, and for some it is special the need for,
The flexible and any shear property of flexible material brings new hope to electric light source, but luminescent material is coated in into flexible material
Rigid solid is different from material, it is high to constituting the technical requirements of layers of material of area source, it is impossible to traditional method, to there is skill
The bottleneck of art, thus it is little on this kind of report in the market.
The content of the invention
The present invention is for short, the unstable deficiency of luminescent material service life on flexible material, there is provided a kind of flexible
Electroluminescent composite, the composite can arbitrarily bend, cuts, fold, and luminescent material is not damaged, long service life,
Stable luminescence.
Present invention also offers the preparation method of above-mentioned composite, the method manufacturing process simple possible is situated between by electricity
The selection of matter layer and luminous composition of layer, it is ensured that the luminescent properties of luminescent material, luminescent material will not be during bending etc.
Rupture, damage, long service life, with application value very high.
Concrete technical scheme of the present invention is as follows：
A kind of flexible el composite, including the flexible matrix of conductive layer is covered with, it is covered with electricity on the conductive layer
Dielectric layer, luminescent layer is covered with the dielectric layer；Wherein, the luminescent layer is luminescent material, Graphene and polyvinyl click
The mixture of azoles.Its structural representation is as shown in Figure 1.
Above-mentioned flexible el composite is a kind of by exchanging electrically excited flexible luminescent composite, and it uses exchange
Can be lighted after being electrically excited.And the matrix of the composite is flexible matrix, can Bending Deformation as needed, with wider array of
Using.
In above-mentioned flexible el composite, content of the luminescent material in luminescent layer is 47.5-85wt%, poly- second
The weight ratio of alkenyl carbazole and Graphene is 8-270：1.
In above-mentioned flexible el composite, the granularity of luminescent material and PVK in luminescent layer is
100-1500 nanometers.The Graphene is the lamellar graphite alkene after peeling off.The molecular weight ranges of PVK are 25000-
500000。
In above-mentioned flexible el composite, the luminescent material be inorganic fluorescent powder, such as rare earth luminescent material,
Doped semiconductor luminescent material or undoped p semiconductive luminescent materials etc..By the selection of luminescent material, different face can be sent
The light of color.
In above-mentioned flexible el composite, the thickness of luminescent layer is 50-240 microns.
In above-mentioned flexible el composite, the dielectric layer is the mixture of fullerene and polyvinylcarbazole.
Preferably, the content of fullerene is the 2-8wt% of PVK and fullerene gross mass.Wherein, PVK point
Son amount scope is 25000-50000.
In above-mentioned flexible el composite, the thickness of dielectric layer is 10-300 microns.
In above-mentioned flexible el composite, the flexible matrix is PET film.
In above-mentioned flexible el composite, the conductive layer is ITO layer, conductive silver paste, indium slurry or carbon slurry
Deng.General, the thickness of conductive layer is less than 1 micron.
Above-mentioned flexible el composite can be electrically excited with exchange it is luminous, its excitation voltage be 60-240V, alternating current
Frequency be 50-2000Hz.
Above-mentioned flexible el composite can bend, folds, shear, flexible, luminescent layer bending, fold,
Remained intact in shear history, will not be damaged.The composite can be as electric source material, it is also possible to be made various devices,
According to the selection of luminescent material, glow color is adjustable, can obtain the light of the various wavelength such as red, yellow, blue, green and white.
The preparation method of flexible el composite of the present invention, comprises the following steps：
（1）The flexible matrix for being covered with conductive layer is taken, it is standby；
（2）PVK is dissolved into volume ratio 1:In 1 n-hexane and the mixed solvent of acetone, richness is subsequently adding
Alkene is strangled to be well mixed, by solution coating on the electrically conductive, dry dielectric layer；
（3）Luminescent material is added into volume ratio 1:In 1 n-hexane and the mixed solvent of acetone, added after being well mixed poly-
VCz and Graphene, prepare luminescent layer, after luminescent layer is dried on the dielectric layer after being well mixed by solution coating
Obtain final product flexible el composite.
In above-mentioned preparation method, step（2）With（3）In, the painting method can using silk-screen printing, roll printing,
The method of rotary spraying, spray spraying, inkjet printing or laser printing is realized.
In above-mentioned preparation method, the thickness of dielectric layer is 10-300 microns, and the thickness of luminescent layer is 50-240 microns.
In above-mentioned preparation method, the granularity of composition is 100-1500 nanometers in luminescent layer, if granularity is herein in itself for composition
In the range of, can be used directly, if granularity is not in this range, the luminescent layer of suitable particle size can be obtained by way of grinding
Composition.
The invention provides a kind of flexible luminescent composite, luminescent layer is coated in the material flexible matrix of softness
On, luminescent layer is easy to because the deformation of matrix produces breakage.The present invention introduces poly- second by improving luminescent layer in luminescent layer
Alkenyl carbazole and Graphene, luminescent layer is coated in flexible matrix will not be damaged.The present invention is directly using now commercial
Various phosphors（Such as rare earth luminescent material, doping and undoped p semiconductive luminescent materials）As luminescent material,
Lighted by being electrically excited with exchange, energy-conservation, long lifespan, stable luminescence can bend, fold, shear, flexible.The present invention is multiple
Condensation material is prepared simply, can be made various device materials, can be adjustable as electric source material, glow color, luminescent material
It is widely applicable, with good application prospect, it is particularly suitable for the demand of current environmental development.
Brief description of the drawings
The structural representation of Fig. 1 flexible el composites of the present invention.
In figure, 1, flexible matrix, 2, conductive layer, 3 dielectric layers, 4, luminescent layer.
Specific embodiment
Below by embodiment, the present invention will be further elaborated, and the description below is of the invention only for explaining, not
Its content is defined.
In following embodiments, the raw material such as PVK used, Graphene, fullerene, phosphor can be with
Directly buy commercial product.
In following embodiments, the molecular weight of PVK is 25000-50000, polyvinylcarbazole, inorganic light-emitting material
The particle diameter of material is in 100-1500nm scopes.
Embodiment 1
1.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 g are added under agitation
Polyvinylcarbazole, and it is completely dissolved it；
During 1.2 weigh the solution that 0.1 g fullerenes add the gained of embodiment 1.1, by evenly mixing after, using silk-screen printing
Dielectric layer is coated into surface has on the PET film of ITO conductive layer, and controls the thickness of dielectric layer for 10 microns, it is laggard
Row dried process；
1.3 in volume is respectively mixed solution of the n-hexane of 10 mL with acetone, adds the rare-earth red rare earth hairs of 50 g
Luminescent material, its granularity is 100 nanometers, agitated to be well mixed it；
1.4 weigh 49 g PVKs and during 1 gram of Graphene adds step 1.3 resulting solution, obtain mixed solution；
1.5 use silk-screen printing by the solution in embodiment 1.4, are uniformly coated on the dielectric layer in embodiment 1.2,
And the thickness of luminescent layer is controlled for 50 microns, through obtaining the flexible luminescent composite for glowing after drying（It is i.e. flexible electroluminescent
Luminescent composite, similarly hereinafter）.
Gained flexibility luminescent composite can arbitrarily bend, and luminescent layer still keeps complete after bending doubling, without cracking, crush
Phenomenon occurs, and emitting red light is obtained in the case where 120V, 600 hertz of exchange are electrically excited.
Embodiment 2
2.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 g are added under agitation
Polyvinylcarbazole, and it is completely dissolved it；
During 2.2 weigh the solution that 0.1 g fullerenes add the gained of embodiment 2.1, by evenly mixing after, using silk-screen printing
Dielectric layer is coated into surface has on the PET film of ITO conductive layer, and controls the thickness of dielectric layer for 10 microns, it is laggard
Row dried process；
2.3 in volume is respectively mixed solution of the n-hexane of 10 mL with acetone, adds the 50 g rare earth luminous materials of white
Material, its granularity is 1500 nanometers, agitated to be well mixed it；
2.4 weigh 25 g PVKs and during 1 gram of Graphene adds the resulting solution of embodiment 2.3, obtain mixing molten
Liquid；
2.5 use silk-screen printing by the solution in embodiment 2.4, are uniformly coated on the dielectric layer in embodiment 2.2,
And the thickness of luminescent layer is controlled for 100 microns, through obtaining flexible luminescent composite after drying.
Gained flexibility luminescent composite can arbitrarily bend, and luminescent layer still keeps complete after bending doubling, without cracking, crush
Phenomenon occurs, and obtains white luminous in the case where 120V, 600 hertz of exchange are electrically excited.
Embodiment 3
3.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 g are added under agitation
Polyvinylcarbazole, and it is completely dissolved it；
During 3.2 weigh the solution that 0.1 g fullerenes add the gained of embodiment 3.1, by evenly mixing after, using silk-screen printing
Dielectric layer is coated into surface has on the PET film of ITO conductive layer, and controls the thickness of dielectric layer for 10 microns, it is laggard
Row dried process；
3.3 in volume is respectively mixed solution of the n-hexane of 10 mL with acetone, adds the luminous material of 31 g red lanthanides
Material, its granularity is 1200 nanometers, agitated to be well mixed it；
3.4 weigh 30 g PVKs and during 1 gram of Graphene adds the resulting solution of embodiment 3.3, obtain mixing molten
Liquid；
3.5 use laser printing by the solution in embodiment 3.4, are uniformly coated on the dielectric layer in embodiment 3.2,
And the thickness of luminescent layer is controlled for 150 microns, through obtaining flexible luminescent composite after drying.The flexible luminous composite wood of gained
Material can arbitrarily bend, and luminescent layer still keeps complete after bending doubling, occur without cracking, Fragmentation Phenomena, 120V, 600 hertz
Exchange is electrically excited down and obtains emitting red light.
Embodiment 4
4.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 g are added under agitation
Polyvinylcarbazole, and it is completely dissolved it；
During 4.2 weigh the solution that 0.2 g fullerenes add the gained of embodiment 4.1, by evenly mixing after, using silk-screen printing
Dielectric layer is coated into surface has on the PET film of ITO conductive layer, and controls the thickness of dielectric layer for 10 microns, it is laggard
Row dried process；
4.3 in volume is respectively mixed solution of the n-hexane of 10 mL with acetone, adds the green semiconductor of 50 g doping
Luminescent material, its granularity is 800 nanometers, agitated to be well mixed it；
4.4 weigh 10 g PVKs and during 1 gram of Graphene adds the resulting solution of embodiment 4.3, obtain mixing molten
Liquid；
4.5 use roll printing by the solution in embodiment 4.4, are uniformly coated on the dielectric layer in embodiment 4.2,
And the thickness of luminescent layer is controlled for 50 microns, through obtaining flexible luminescent composite after drying.The flexible luminous composite wood of gained
Material can arbitrarily bend, and luminescent layer still keeps complete after bending doubling, occur without cracking, Fragmentation Phenomena, 120V, 600 hertz
Exchange is electrically excited down and obtains green emitting.
Embodiment 5
5.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 g are added under agitation
Polyvinylcarbazole, and it is completely dissolved it；
During 5.2 weigh the solution that 0.4 g fullerenes add the gained of embodiment 5.1, by evenly mixing after, using silk-screen printing
Dielectric layer is coated into surface has on the PET film of ITO conductive layer, and controls the thickness of dielectric layer for 10 microns, it is laggard
Row dried process；
5.3 in volume is respectively mixed solution of the n-hexane of 10 mL with acetone, add 50 g undoped p basket colors partly to lead
Body luminescent material, its granularity is 1200 nanometers, agitated to be well mixed it；
5.4 weigh 8 g PVKs and during 1 gram of Graphene adds the resulting solution of embodiment 5.3, obtain mixing molten
Liquid；
5.5 use silk-screen printing by the solution in embodiment 5.4, are uniformly coated on the dielectric layer in embodiment 5.2,
And the thickness of luminescent layer is controlled for 50 microns, through obtaining flexible luminescent composite after drying.The flexible luminous composite wood of gained
Material can arbitrarily bend, and luminescent layer still keeps complete after bending doubling, occur without cracking, Fragmentation Phenomena, 120V, 600 hertz
Exchange is electrically excited down and obtains blue-light-emitting.
Embodiment 6
6.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 g are added under agitation
Polyvinylcarbazole, and it is completely dissolved it；
During 6.2 weigh the solution that 0.2 g fullerenes add the gained of embodiment 6.1, by evenly mixing after, using silk-screen printing
Dielectric layer is coated into surface has on the PET film of ITO conductive layer, and controls the thickness of dielectric layer for 10 microns, it is laggard
Row dried process；
6.3 in volume is respectively mixed solution of the n-hexane of 30 mL with acetone, adds 350 g undoped ps blue half
Conductor luminescent material, its granularity is 800 nanometers, agitated to be well mixed it；
6.4 weigh 150 g PVKs and during 4 grams of Graphenes add the resulting solutions of embodiment 6.3, obtain mixing molten
Liquid；And control luminescent layer thickness be 50 microns.
6.5 use silk-screen printing by the solution in embodiment 6.4, are uniformly coated on the dielectric layer in embodiment 6.2,
Through obtaining flexible luminescent composite after drying.Gained flexibility luminescent composite can arbitrarily bend, and be lighted after bending doubling
Layer still keeps complete, occurs without cracking, Fragmentation Phenomena, and blue-light-emitting is obtained in the case where 120V, 600 hertz of exchange are electrically excited.
Embodiment 7
7.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 g are added under agitation
Polyvinylcarbazole, and it is completely dissolved it；
During 7.2 weigh the solution that 0.4 g fullerenes add the gained of embodiment 7.1, by evenly mixing after, using silk-screen printing
Dielectric layer is coated into surface has on the PET film of ITO conductive layer, and controls the thickness of dielectric layer for 10 microns, it is laggard
Row dried process；
7.3 in volume is respectively mixed solution of the n-hexane of 10 mL with acetone, add 50 g green-doped semiconductors
Luminescent material, its granularity is 1500 nanometers, agitated to be well mixed it；
7.4 weigh 25 g PVKs and during 1 gram of Graphene adds the resulting solution of embodiment 7.3, obtain mixing molten
Liquid；
7.5 use silk-screen printing by the solution in embodiment 7.4, are uniformly coated on the dielectric layer in embodiment 7.2,
And the thickness of luminescent layer is controlled for 50 microns, through obtaining flexible luminescent composite after drying.The flexible luminous composite wood of gained
Material can arbitrarily bend, and luminescent layer still keeps complete after bending doubling, occur without cracking, Fragmentation Phenomena, 120V, 600 hertz
Exchange is electrically excited down and obtains green emitting.
Embodiment 8
8.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 g are added under agitation
Polyvinylcarbazole, and it is completely dissolved it；
During 8.2 weigh the solution that 0.1 g fullerenes add the gained of embodiment 8.1, by evenly mixing after, using silk-screen printing
Dielectric layer is coated into surface has on the PET film of ITO conductive layer, and controls the thickness of dielectric layer for 10 microns, it is laggard
Row dried process；
8.3 in volume is respectively mixed solution of the n-hexane of 10 mL with acetone, adds the luminous material of 50 g red lanthanides
Material, its granularity is 100 nanometers, agitated to be well mixed it；
8.4 weigh 10 g PVKs and during 1 gram of Graphene adds the resulting solution of embodiment 8.3, obtain mixing molten
Liquid；
8.5 use silk-screen printing by the solution in embodiment 8.4, are uniformly coated on the dielectric layer in embodiment 8.2,
And the thickness of luminescent layer is controlled for 50 microns, through obtaining flexible luminescent composite after drying.The flexible luminous composite wood of gained
Material can arbitrarily bend, and luminescent layer still keeps complete after bending doubling, occur without cracking, Fragmentation Phenomena, 120V, 600 hertz
Exchange is electrically excited down and obtains emitting red light.
Embodiment 9
9.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 g are added under agitation
Polyvinylcarbazole, and it is completely dissolved it；
During 9.2 weigh the solution that 0.4 g fullerenes add the gained of embodiment 9.1, by evenly mixing after, using silk-screen printing
Dielectric layer is coated into surface has on the PET film of ITO conductive layer, and controls the thickness of dielectric layer for 10 microns, it is laggard
Row dried process；
9.3 in volume is respectively mixed solution of the n-hexane of 20 mL with acetone, add 425 g whites rare earth luminous
Material, its granularity is 800 nanometers, agitated to be well mixed it；
9.4 weigh 150 g PVKs and during 3 grams of Graphenes add the resulting solutions of embodiment 9.3, obtain mixing molten
Liquid；
9.5 use silk-screen printing by the solution in embodiment 9.4, are uniformly coated on the dielectric layer in embodiment 9.2,
And the thickness of luminescent layer is controlled for 50 microns, through obtaining flexible luminescent composite after drying.The flexible luminous composite wood of gained
Material can arbitrarily bend, and luminescent layer still keeps complete after bending doubling, occur without cracking, Fragmentation Phenomena, 120V, 600 hertz
Exchange is electrically excited down and obtains white luminous.
Embodiment 10
10.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 are added under agitation
G polyvinylcarbazoles, and it is completely dissolved it；
During 10.2 weigh the solution that 0.2 g fullerenes add the gained of embodiment 10.1, by evenly mixing after, using screen printing
Dielectric layer is coated to surface and has on the PET film of ITO conductive layer by brush, and it is 100 microns to control the thickness of dielectric layer, afterwards
It is dried treatment；
10.3 in volume is respectively mixed solution of the n-hexane of 50 mL with acetone, add 350 g green rare-earths to light
Material, its granularity is 1500 nanometers, agitated to be well mixed it；
10.4 weigh 150 g PVKs and during 3 grams of Graphenes add the resulting solutions of embodiment 10.3, are mixed
Solution；
10.5 use silk-screen printing by the solution in embodiment 10.4, are uniformly coated to the dielectric layer in embodiment 10.2
On, and the thickness of luminescent layer is controlled for 180 microns, through obtaining flexible luminescent composite after drying.Gained is flexible luminous multiple
Condensation material can arbitrarily bend, bending doubling after luminescent layer still keep complete, without cracking, Fragmentation Phenomena occur, 120V, 600 hertz
Exchange hereby is electrically excited down and obtains green emitting.
Embodiment 11
11.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 are added under agitation
G polyvinylcarbazoles, and it is completely dissolved it；
During 11.2 weigh the solution that 0.2 g fullerenes add the gained of embodiment 11.1, by evenly mixing after, using screen printing
Dielectric layer is coated to surface and has on the PET film of ITO conductive layer by brush, and it is 100 microns to control the thickness of dielectric layer, afterwards
It is dried treatment；
11.3 in volume is respectively mixed solution of the n-hexane of 40 mL with acetone, add 400 g red lanthanides to light
Material, its granularity is 1200 nanometers, agitated to be well mixed it；
11.4 weigh 70g PVKs and during 2 grams of Graphenes add the resulting solutions of embodiment 11.3, obtain mixing molten
Liquid；
11.5 use roll printing by the solution in embodiment 11.4, are uniformly coated to the dielectric layer in embodiment 11.2
On, and the thickness of luminescent layer is controlled for 240 microns, through obtaining flexible luminescent composite after drying.
Gained flexibility luminescent composite can arbitrarily bend, and luminescent layer still keeps complete after bending doubling, without cracking, crush
Phenomenon occurs, and emitting red light is obtained in the case where 120V, 600 hertz of exchange are electrically excited.
Embodiment 12
12.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 are added under agitation
G polyvinylcarbazoles, and it is completely dissolved it；
During 12.2 weigh the solution that 0.2 g fullerenes add the gained of embodiment 12.1, by evenly mixing after, using screen printing
Dielectric layer is coated to surface and has on the PET film of ITO conductive layer by brush, and it is 200 microns to control the thickness of dielectric layer, afterwards
It is dried treatment；
12.3 in volume is respectively mixed solution of the n-hexane of 80 mL with acetone, add 200 g yellow rare-earths to light
Material, its granularity is 800 nanometers, agitated to be well mixed it；
12.4 weigh 70 g PVKs and during 1 gram of Graphene adds the resulting solution of embodiment 12.3, are mixed
Solution；
12.5 use rotary spraying by the solution in embodiment 12.4, are uniformly coated to the dielectric layer in embodiment 12.2
On, and the thickness of luminescent layer is controlled for 180 microns, through obtaining flexible luminescent composite after drying.Gained is flexible luminous multiple
Condensation material can arbitrarily bend, bending doubling after luminescent layer still keep complete, without cracking, Fragmentation Phenomena occur, 120V, 600 hertz
Exchange hereby is electrically excited down and obtains Yellow luminous.
Embodiment 13
13.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 are added under agitation
G polyvinylcarbazoles, and it is completely dissolved it；
During 13.2 weigh the solution that 0.1 g fullerenes add the gained of embodiment 13.1, by evenly mixing after, using screen printing
Dielectric layer is coated to surface and has on the PET film of ITO conductive layer by brush, and it is 300 microns to control the thickness of dielectric layer, afterwards
It is dried treatment；
13.3 in volume is respectively mixed solution of the n-hexane of 80 mL with acetone, adds 250 g Huang doped semiconductors
Luminescent material, its granularity is 1200 nanometers, agitated to be well mixed it；
13.4 weigh 240 g PVKs and during 1 gram of Graphene adds the resulting solution of embodiment 13.3, are mixed
Solution；
13.5 use roll printing by the solution in embodiment 13.4, are uniformly coated to the dielectric layer in embodiment 13.2
On, and the thickness of luminescent layer is controlled for 180 microns, through obtaining flexible luminescent composite after drying.Gained is flexible luminous multiple
Condensation material can arbitrarily bend, bending doubling after luminescent layer still keep complete, without cracking, Fragmentation Phenomena occur, 120V, 600 hertz
Exchange hereby is electrically excited down and obtains Yellow luminous.
Embodiment 14
14.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 are added under agitation
G polyvinylcarbazoles, and it is completely dissolved it；
During 14.2 weigh the solution that 0.4 g fullerenes add the gained of embodiment 14.1, by evenly mixing after, using screen printing
Dielectric layer is coated to surface and has on the PET film of ITO conductive layer by brush, and it is 100 microns to control the thickness of dielectric layer, afterwards
It is dried treatment；
14.3 in volume is respectively mixed solution of the n-hexane of 80 mL with acetone, adds the red doping of 250 g partly to lead
Body luminescent material, its granularity is 800nm, agitated to be well mixed it；
14.4 weigh 250 g PVKs and during 2 grams of Graphenes add the resulting solutions of embodiment 14.3, are mixed
Solution；
14.5 are sprayed the solution in embodiment 14.4 using spray, are uniformly coated to the dielectric layer in embodiment 14.2
On, and the thickness of luminescent layer is controlled for 180 microns, through obtaining flexible luminescent composite after drying.Gained is flexible luminous multiple
Condensation material can arbitrarily bend, bending doubling after luminescent layer still keep complete, without cracking, Fragmentation Phenomena occur, 120V, 600 hertz
Exchange hereby is electrically excited down and obtains emitting red light.
Embodiment 15
15.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 are added under agitation
G polyvinylcarbazoles, and it is completely dissolved it；
During 15.2 weigh the solution that 0.2 g fullerenes add the gained of embodiment 15.1, by evenly mixing after, using screen printing
Dielectric layer is coated to surface and has on the PET film of ITO conductive layer by brush, and it is 100 microns to control the thickness of dielectric layer, afterwards
It is dried treatment；
15.3 in volume is respectively mixed solution of the n-hexane of 80 mL with acetone, add 250 g doped semiconductors blue
Color luminescent material, its granularity is 100 nanometers, agitated to be well mixed it；
15.4 weigh 260 g PVKs and during 2 grams of Graphenes add the resulting solutions of embodiment 15.3, are mixed
Solution；
15.5 use inkjet printing by the solution in embodiment 15.4, are uniformly coated to the dielectric layer in embodiment 15.2
On, and the thickness of luminescent layer is controlled for 180 microns, through obtaining flexible luminescent composite after drying.Gained is flexible luminous multiple
Condensation material can arbitrarily bend, bending doubling after luminescent layer still keep complete, without cracking, Fragmentation Phenomena occur, 120V, 600 hertz
Exchange hereby is electrically excited down and obtains blue-light-emitting.
Embodiment 16
16.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 are added under agitation
G polyvinylcarbazoles, and it is completely dissolved it；
During 16.2 weigh the solution that 0.2 g fullerenes add the gained of embodiment 16.1, by evenly mixing after, using screen printing
Dielectric layer is coated to surface and has on the PET film of ITO conductive layer by brush, and it is 10 microns to control the thickness of dielectric layer, afterwards
It is dried treatment；
16.3 in volume is respectively mixed solution of the n-hexane of 80 mL with acetone, add 250 g green rare-earths to light
Material, its granularity is 1500 nanometers, agitated to be well mixed it；
16.4 weigh 270 g PVKs and during 1 gram of Graphene adds the resulting solution of embodiment 16.3, obtain
Mixed solution；
16.5 use silk-screen printing by the solution in embodiment 16.4, are uniformly coated to the dielectric layer in embodiment 16.2
On, and the thickness of luminescent layer is controlled for 50 microns, through obtaining flexible luminescent composite after drying.Gained is flexible luminous compound
Material can arbitrarily bend, bending doubling after luminescent layer still keep complete, without cracking, Fragmentation Phenomena occur, 120V, 600 hertz
Exchange be electrically excited down and obtain green emitting.
Comparative example 1
1.1 with embodiment 16.1；
1.2 with embodiment 16.2；
1.3 in volume is respectively mixed solution of the n-hexane of 80 mL with acetone, add 250 g green rare-earths to light
Material, its granularity is 1500 nanometers, agitated to be well mixed it, and the solution is uniformly coated to using silk screen print method
State on 1.2 dielectric layer, and control the thickness of luminescent layer for 50 microns, through obtaining flexible composite after drying.
Luminescent layer has cracking, disrepair phenomenon after the bending doubling of gained flexible composite, in 120V, 600 hertz of exchange
It is electrically excited down and does not light.
Comparative example 2
2.1 measure the n-hexane and acetone that volume is respectively 2 mL, it is to be mixed it is uniform after, 5 g are added under agitation
Polyvinylcarbazole, and it is completely dissolved it；
Above-mentioned 2.1 solution is coated to surface by 2.2 using silk screen print method to be had on the PET film of ITO conductive layer, and is controlled
The thickness of dielectric layer is 10 microns, and treatment is dried afterwards；
2.3 in volume is respectively mixed solution of the n-hexane of 80 mL with acetone, add 250 g green rare-earths to light
Material, its granularity is 2000 nanometers, agitated to be well mixed it；
2.4 weigh 270 g PVKs and 1 gram of Graphene, add in 2.3 resulting solutions, obtain mixed solution；
2.5 use silk-screen printing by the solution in 2.4, are uniformly coated on the dielectric layer in above-mentioned 2.2, and control hair
The thickness of photosphere is 50 microns, through obtaining flexible composite after drying.
Can cause that luminescent layer ftractures after the composite bending of gained, not sent out in the case where 120V, 600 hertz of exchange are electrically excited
Light.
Claims (9)
1. a kind of flexible el composite, including the flexible matrix of conductive layer is covered with, electric Jie is covered with the conductive layer
Matter layer, luminescent layer is covered with the dielectric layer；Wherein, the luminescent layer is luminescent material, Graphene and PVK
Mixture, the dielectric layer is the mixture of fullerene and polyvinylcarbazole, and the luminescent material is inorganic fluorescent powder.
2. flexible el composite according to claim 1, it is characterized in that：In luminescent layer, luminescent material contains
It is 47.5~85wt% to measure, and the weight ratio of PVK and Graphene is 8-270：1.
3. flexible el composite according to claim 1 and 2, it is characterized in that：In luminescent layer, the luminous material
The granularity of material and PVK is 100-1500 nanometers.
4. flexible el composite according to claim 1, it is characterized in that：In dielectric layer, fullerene contains
It is the 2-8wt% of PVK and fullerene gross mass to measure.
5. flexible el composite according to claim 1 and 2, it is characterized in that：The thickness of luminescent layer is 50-
240 microns, the thickness of dielectric layer is 10-300 microns.
6. flexible el composite according to claim 1 and 2, it is characterized in that：The flexible matrix is PET
Film；The conductive layer material is ITO, conductive silver paste, indium slurry or carbon slurry.
7. flexible el composite according to claim 1, it is characterized in that：It can be electrically excited hair by exchange
Light.
8. the preparation method of the flexible el composite described in a kind of claim 1, it is characterized in that comprising the following steps：
（1）The conductive layer on flexible matrix plated surface；
（2）PVK is dissolved into volume ratio 1:In 1 n-hexane and the mixed solvent of acetone, fullerene is subsequently adding
It is well mixed, by solution coating on the electrically conductive, dry dielectric layer；
（3）Luminescent material is added into volume ratio 1:In 1 n-hexane and the mixed solvent of acetone, polyethylene is added after being well mixed
Base carbazole and Graphene, luminescent layer is prepared after being well mixed on the dielectric layer by solution coating, and luminescent layer is obtained final product after drying
Flexible el composite.
9. preparation method according to claim 8, it is characterized in that：Step（2）With（3）In, the painting method includes silk
Wire mark brush, roll printing, rotary spraying, spray spraying, inkjet printing or laser printing.
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