CN108598288A - A kind of composite multifunction OLED electrodes and preparation method thereof - Google Patents
A kind of composite multifunction OLED electrodes and preparation method thereof Download PDFInfo
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- CN108598288A CN108598288A CN201810752287.1A CN201810752287A CN108598288A CN 108598288 A CN108598288 A CN 108598288A CN 201810752287 A CN201810752287 A CN 201810752287A CN 108598288 A CN108598288 A CN 108598288A
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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
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/81—Anodes
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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
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/828—Transparent cathodes, e.g. comprising thin metal layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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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
- H10K71/60—Forming conductive regions or layers, e.g. electrodes
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Abstract
The invention discloses a kind of composite multifunction OLED electrodes and preparation method thereof, composite multifunction OLED electrodes include the metal nanometer line Optoelectronic polymers mixed layer of flexible base board and growth on flexible substrates, metal nanometer line Optoelectronic polymers mixed layer includes metal nanometer line and Optoelectronic polymers material, one layer of Optoelectronic polymers material of spin coating on metal nanometer line so that Optoelectronic polymers material is filled in the gap of metal nanometer line.The present invention makes that metal nanometer line insertion is soft, is constituted in sticky Optoelectronic polymers material and has interface smooth and the composite multifunction OLED electrodes of good electrically conducting transparent characteristic and hole/electron injection ability by pressure, the translucency and electric conductivity for solving the problems, such as metal nanometer line prepared by conventional method are difficult to take into account, and using the method for antivacuum preparation, the manufacturing cost of current OLED electrodes can be substantially reduced.
Description
Technical field
The present invention relates to transparent conductive electrode technical fields, more particularly to a kind of to be based on metal nanometer line and Optoelectronic polymers
Composite multifunction OLED electrodes of material and preparation method thereof.
Background technology
Metal is prepared to electrode extensively due to its high conductivity, is used as in organic electronic and opto-electronic device,
But blocky or film metal is typically opaque, the use which has limited metal as transparent conductive electrode.To understand
The certainly opaque problem of metallic film, researchers have found to solve using metal mesh structure and metal nano wire grid above-mentioned
Problem.Metal grill is typically two-dimensional grid or the form of hexagonal mesh, is deposited by thermal evaporation, by photoetching technique into
Row patterning or printing.Since the cavity in metalolic network is almost 100% transparent, so the coverage rate by changing metal
(i.e. the line width of metal nano net) can easily tune the transmissivity of metal grill flexible and transparent conductive electrode.Theoretically,
The metal grill of perfect condition with optimization line width is than the ITO with identical square resistance with higher transmissivity.For example,
Theoretically the square resistance of 90% optical transmittance and 0.8 Ω/nm may be implemented in the Ag films electrode of nano-patterning, practical
The metal grid electrode of preparation can generally also reach about 80% light transmission.
Metal nano wire grid also has other than metal grill has the advantage that and passes through solwution method from liquid dispersion
The remarkable advantage of Direct precipitation.So far, most widely used metal nanometer line is nano silver wire (AgNWs), can be equal
It is even to be dispersed in alcohol solvent to form the solution of high quality, have benefited from the intrinsic metalline of nano silver wire and height in length and breadth
Than the ultra-thin random nano wire grid being grown in plastic supporting base has very high mechanical flexibility, high conductivity and transparency.
But metal nano wire grid and metal grill all have there are one apply upper problem, that is, from the metal gate of substrate protrusion
Lattice (micron order) are relatively thicker than ultra-film organic layer (nanoscale), are easy to cause the short circuit of device so that this flexible and transparent is led
Electrode is not suitable for directly applying to actual organic optoelectronic device.
At present in this field, there are many kinds of the effective technologies for preparing flexible transparent electrode using metal nanometer line, than
Such as nano silver wire is embedded in flexible base board to reduce its surface roughness, or in nano silver wire surface spin coating conducting polymer
Material PEDOT：PSS(PEDOT:PSS is a kind of aqueous solution of high molecular polymer, is made of two kinds of substances of PEDOT and PSS.
PEDOT is the polymer of EDOT (3,4-rthylene dioxythiophene monomer), PSS is poly styrene sulfonate) fill up nano silver wire
The out-of-flatness of film surface is to avoid short circuit, or sacrifices its partially flexible and combined nano silver wire with ITO to obtain preferably
Electric conductivity also has in addition by directly by applying the method for external force, film prepared by nano silver wire being flattened to reduce surface
Roughness.Although the above method has certain achievement, many disadvantages are still had：1, existing technology has and is difficult to take into account
The shortcomings that translucency and electric conductivity：If increasing the concentration of nano silver wire in nano silver wire solution, the film resistor of preparation is smaller,
But translucency is poor；If reducing the concentration of nano silver wire, the electric conductivity of its film can be corresponding while translucency is promoted
Decline.2, the technology of the existing out-of-flatness for solving nano silver wire film surface is incomplete, is such as directly embedded in nano silver wire
Although in the high molecular material of insulation the flatness of film surface can improve, its electric conductivity can be also limited；Or directly exist
Nano silver wire surface spin coating conducting polymer PEDOT：PSS, although reducing the coarse of nano wire film surface to a certain extent
Degree, but its PEDOT：The surfaces PSS are still out-of-flatness, are unfavorable for subsequently preparing device.3, the cost of the prior art is higher.
Invention content
The purpose of the present invention is to propose to a kind of composite multifunction based on metal nanometer line Yu Optoelectronic polymers material
OLED electrodes and preparation method thereof make to constitute in metal nanometer line insertion softness, sticky Optoelectronic polymers material by pressure
Composite multifunction OLED electrodes, composite multifunction OLED electrodes not only have smooth interface, good electrically conducting transparent characteristic and
Hole/electron injection ability, can also realize single electrode shine or OLED (Chinese is organic electroluminescent LED,
Hereinafter referred to as OLED) color conversion.The present invention solves the translucency of the metal nanometer line of conventional method preparation and electric conductivity is difficult to
The problem of taking into account, and using the method for antivacuum preparation, the manufacturing cost of current OLED electrodes can be substantially reduced.
To achieve the above object, the present invention provides following schemes：
A kind of composite multifunction OLED electrodes, the composite multifunction OLED electrodes include flexible base board and are grown in institute
State metal nanometer line-Optoelectronic polymers mixed layer on flexible base board；
The metal nanometer line-Optoelectronic polymers mixed layer includes metal nanometer line and Optoelectronic polymers material；Described
One layer of the spin coating Optoelectronic polymers material on metal nanometer line so that the Optoelectronic polymers material is filled in the metal and receives
In the gap of rice noodles.
Optionally, the metal nanometer line is nano silver wire.
Optionally, the nano silver wire is grain size 80nm, the nano silver wire that 5 μm of length.
Optionally, the Optoelectronic polymers material is poly- 2- (2- ethyls oxygroup) -5- Methoxy-phenylacetylene solution.
Optionally, the flexible base board is PEI flexible base boards or PI flexible base boards.
The present invention also provides a kind of preparation method of composite multifunction OLED electrodes, the preparation method includes：
It uses solwution method to cover one layer of metal nanometer line solution on flexible substrates, forms metal nanometer line layer；The gold
Belong to nano-solution to be formed by metal nanometer line is dispersed in ethanol solution；
One layer of Optoelectronic polymers material of spin coating on the metal nanometer line layer, and the photoelectricity is made using heating and pressurizing method
High molecular material is inserted in the gap of the metal nanometer line, is formed metal nanometer line-Optoelectronic polymers mixed layer, is made compound
Multi-functional OLED electrodes.
Optionally, the thickness of the metal nanometer line layer is 150~250nm.
Optionally, the thickness of the metal nanometer line-Optoelectronic polymers mixed layer is 150~250nm.
Optionally, heating temperature is 100 degree in the heating and pressurizing method, and pressurization air pressure is in 0.6Mpa or more.
Optionally, the solwution method be spin-coating method, spray coating method or print process, the heating and pressurizing method be nano-imprint method or
Pneumatic process.
According to specific embodiment provided by the invention, the invention discloses following technique effects：
The present invention provides a kind of composite multifunction OLED electrodes and preparation method thereof, composite multifunction OLED electrode packets
Metal nanometer line-Optoelectronic polymers the mixed layer of flexible base board and growth on flexible substrates is included, metal nanometer line-photoelectricity is high
Molecular mixing layer includes metal nanometer line and Optoelectronic polymers material, one layer of Optoelectronic polymers material of spin coating on metal nanometer line
Material so that Optoelectronic polymers material is filled in the gap of metal nanometer line.The present invention makes metal nanometer line be embedded in by pressure
Being constituted in soft, sticky Optoelectronic polymers material has smooth interface and good electrically conducting transparent characteristic and hole/electronics
The composite multifunction OLED electrodes of injectability, translucency and the electric conductivity for solving the metal nanometer line of conventional method preparation are difficult
The problem of to take into account, and using the method for antivacuum preparation, the manufacturing cost of current OLED electrodes can be substantially reduced.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of composite multifunction OLED electrodes of the embodiment of the present invention；
Fig. 2 is the flow diagram of composite multifunction OLED electrode preparation methods of the embodiment of the present invention；
Fig. 3 is combination electrode of the embodiment of the present invention based on nano silver wire electrode and Optoelectronic polymers material MEH-PPV
Preparation process schematic diagram.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The purpose of the present invention is to propose to a kind of composite multifunction based on metal nanometer line Yu Optoelectronic polymers material
OLED electrodes and preparation method thereof, composite multifunction OLED electrodes not only with good electrically conducting transparent characteristic and hole/
Electron injection ability can also be realized and shine and the conversion of OLED colors, solve the translucency of the nano silver wire of conventional method preparation
The problem of being difficult to take into account with electric conductivity, and using the method for antivacuum preparation, the system of current OLED electrodes can be substantially reduced
Cause this.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Embodiment one
Fig. 1 is the structural schematic diagram of composite multifunction OLED electrodes of the embodiment of the present invention,
As shown in Figure 1, composite multifunction OLED electrodes provided in an embodiment of the present invention include flexible base board 1 and are grown in
Metal nanometer line-Optoelectronic polymers mixed layer 2 on the flexible base board；The metal nanometer line-Optoelectronic polymers mixed layer
Including metal nanometer line 21 and Optoelectronic polymers material 22；One layer of Optoelectronic polymers of spin coating on the metal nanometer line 21
Material 22 so that the Optoelectronic polymers material 22 is filled in the gap of the metal nanometer line 21.
Preferably, the metal nanometer line 21 is grain size 80nm, the nano silver wire that 5 μm of length.The Optoelectronic polymers material
Material 22 is poly- 2- (2- ethyls oxygroup) -5- Methoxy-phenylacetylene solution, English abbreviation MEH-PPV solution, the photoelectricity high score
Sub- material 22 has many advantages, such as to inject hole, shine.The flexible base board 1 is PEI flexible base boards or PI flexible base boards.
Fig. 2 is the flow diagram of composite multifunction OLED electrode preparation methods of the embodiment of the present invention, as shown in Fig. 2, this
The preparation method of a kind of composite multifunction OLED electrodes that inventive embodiments provide includes：
Step 101：It uses solwution method to cover one layer of metal nanometer line solution on flexible substrates, forms metal nanometer line
Layer；The metal nano solution is formed by metal nanometer line is dispersed in ethanol solution.
Step 102：One layer of Optoelectronic polymers material of spin coating on the metal nanometer line layer, and made using heating and pressurizing method
The Optoelectronic polymers material is inserted in the gap of the metal nanometer line, and metal nanometer line-Optoelectronic polymers mixed layer is formed,
Composite multifunction OLED electrodes are made.
Wherein, the thickness of the metal nanometer line layer is 150~250nm.
The thickness of the metal nanometer line-Optoelectronic polymers mixed layer is 150~250nm.
Heating temperature is 100 degree in the heating and pressurizing method, and pressurization air pressure is in 0.6Mpa or more.
The solwution method includes spin-coating method, spray coating method, print process etc., and the heating and pressurizing method includes nano-imprint method, gas
Platen press etc..
Embodiment three：
Fig. 3 is combination electrode of the embodiment of the present invention based on nano silver wire electrode and Optoelectronic polymers material MEH-PPV
Preparation process schematic diagram, as shown in figure 3, an embodiment of the present invention provides based on nano silver wire electrode and Optoelectronic polymers material
The preparation method of the combination electrode of MEH-PPV includes：
First, using grain size 80nm, the nano silver wire that 50 μm of length will be dispersed in ethanol solution, and it is molten to form nano silver wire
Liquid, the mass fraction 1wt% of ethanol solution.
Secondly, nano silver wire solution is spun on flexible pet substrate, average film thickness is controlled in 200nm or so, then
100 DEG C are annealed 20 minutes.
Furthermore the spin coating MEH-PPV solution in silver nanowire film, solvent use toluene, control film thickness in 200m or so, and
Optoelectronic polymers material MEH-PPV solution is set to be filled into the gap of nano silver wire using heating and pressurizing method, to be made flexible, thoroughly
The small combination electrode of bright, good conductivity, roughness, and ensure the planarization at interface.
The present invention is combined the high molecular material that can be shone with the advantage of metal nanometer line, be made can shine or color convert
Multifunctional combination electrode.Compared with prior art, the present invention has the advantage that：
1, the Multifunctional combination electrode prepared by the present invention not only realizes flexible, transparent, conductive function, but also interface
Roughness is very low, and the performance of compatible topmost thin film is good.
2, shining for electrode may be implemented in the multi-functional recombination luminescence electrode prepared by the present invention, can be with lower cost
The light spectrum of modulation device, it is easy to accomplish large area produces.
Principle and implementation of the present invention are described for specific case used herein, and above example is said
The bright method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, foundation
The thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of composite multifunction OLED electrodes, which is characterized in that the composite multifunction OLED electrodes include flexible base board with
And it is grown in metal nanometer line-Optoelectronic polymers mixed layer on the flexible base board；
The metal nanometer line-Optoelectronic polymers mixed layer includes metal nanometer line and Optoelectronic polymers material；In the metal
One layer of the spin coating Optoelectronic polymers material on nano wire so that the Optoelectronic polymers material is filled in the metal nanometer line
Gap in.
2. composite multifunction OLED electrodes according to claim 1, which is characterized in that the metal nanometer line is silver nanoparticle
Line.
3. composite multifunction OLED electrodes according to claim 2, which is characterized in that the nano silver wire is grain size
80nm, the nano silver wire that 5 μm of length.
4. composite multifunction OLED electrodes according to claim 1, which is characterized in that the Optoelectronic polymers material is poly-
2- (2- ethyls oxygroup) -5- Methoxy-phenylacetylene solution.
5. composite multifunction OLED electrodes according to claim 1, which is characterized in that the flexible base board is PEI flexible
Substrate or PI flexible base boards.
6. a kind of preparation method of composite multifunction OLED electrodes, which is characterized in that the preparation method includes：
It uses solwution method to cover one layer of metal nanometer line solution on flexible substrates, forms metal nanometer line layer；The metal is received
Rice solution is formed by metal nanometer line is dispersed in ethanol solution；
One layer of Optoelectronic polymers material of spin coating on the metal nanometer line layer, and the photoelectricity high score is made using heating and pressurizing method
Sub- material is inserted in the gap of the metal nanometer line, forms metal nanometer line-Optoelectronic polymers mixed layer, compound more work(are made
It can OLED electrodes.
7. the preparation method of composite multifunction OLED electrodes according to claim 6, which is characterized in that the metal nano
The thickness of line layer is 150~250nm.
8. the preparation method of composite multifunction OLED electrodes according to claim 6, which is characterized in that the metal nano
The thickness of line-Optoelectronic polymers mixed layer is 150~250nm.
9. the preparation method of composite multifunction OLED electrodes according to claim 6, which is characterized in that the heating pressurization
Heating temperature is 100 degree in method, and pressurization air pressure is in 0.6Mpa or more.
10. the preparation method of composite multifunction OLED electrodes according to claim 6, which is characterized in that the solwution method
For spin-coating method, spray coating method or print process, the heating and pressurizing method is nano-imprint method or pneumatic process.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110931641A (en) * | 2019-11-22 | 2020-03-27 | 徐州吴瑞信息科技有限公司 | Silicon-based organic-inorganic hybrid solar cell and preparation method thereof |
| CN110993794A (en) * | 2019-11-22 | 2020-04-10 | 徐州吴瑞信息科技有限公司 | Heterojunction solar cell and preparation method thereof |
| WO2021073608A1 (en) * | 2019-10-16 | 2021-04-22 | The University Of Hong Kong | Integration of metal nanowire network into conducting polymers |
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Application publication date: 20180928 |