CN101540378A - Method for producing organic electroluminescence device - Google Patents
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- CN101540378A CN101540378A CN200910059064A CN200910059064A CN101540378A CN 101540378 A CN101540378 A CN 101540378A CN 200910059064 A CN200910059064 A CN 200910059064A CN 200910059064 A CN200910059064 A CN 200910059064A CN 101540378 A CN101540378 A CN 101540378A
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Abstract
The invention discloses a method for producing an organic electroluminescence device. The method comprises the followings steps: frirstly, conducting polymer nanowire structures which are sequentially and closely arranged are formed on the anode of a device, and are used as the hole injection layers of the device; and secondly, other functional layers and membrane electrodes of the device are produced. Materials in the hole injection layers are the sequentially arranged conducting polymer nanowires, and the device has the characteristic of high carrier mobility. The method can not only be used for producing the organic electroluminescence device with the advantages of high luminous efficiency and long service life, but also can be applied to the fields of backlights, luminance light panels, and the like for color LED display.
Description
Technical field
The present invention relates to technical field of organic electroluminescence in the electronic component, be specifically related to a kind of organic electroluminescence device and preparation method thereof.
Background technology
Along with the development of nanosecond science and technology in recent years, the material that has regular morphology (as having shapes such as ball, line, band, pipe) in the scope of micron and nanoscale becomes one of research focus of various countries scientist.The conducting polymer of micro also may be because skin effect, small-size effect and quantum tunneling effect etc. make it have other property, as the carrier mobility advantages of higher.
In recent years, conductive polymer poly 3,4-vinyl dioxy thiophene (PEDOT) progressively becomes the focus of organic electronic material research owing to have conductivity height, thermally-stabilised and transparent characteristics such as good.The PEDOT of doping attitude has higher conductivity, is a kind of rich hole material, thereby can be used as the hole mobile material of organic electronic device.
People such as Zhang are template with Woelm Alumina (AAO), have prepared PEDOT nano wire and nanotube with the chemical polymerization method.The method that they at first adopt negative pressure to inject is injected the hole of AAO template with monomer solution, and then the template that will contain oxidant immerses in the oxidant polymerization takes place, thereby obtains nanotube and the nano wire of PEDOT.By the concentration and the reaction temperature of controlled oxidation agent, can obtain the controlled a series of nanotubes of pipe thickness, this nanotube can be scattered in the ethanolic solution preferably.They will contain pipe thickness and drip on the substrate less than the nanotube drop of 20nm, treat can obtain clear films after the solvent evaporates, have good application prospects aspect organic electronic and the photoelectron material.
Hole injection layer as organic electroluminescent, not only need material to have preferably electric conductivity and make mobility of charge carrier efficient height, thereby to there be good coupling to improve the injection efficiency of charge carrier with electrode simultaneously, therefore the PEDOT nano wire just becomes desirable hole mobile material, therefore adopt a kind of effective method to obtain conductive polymer nanometer line film ultra-thin, high-sequential, for the high performance hole transmission layer of preparation and to improve the performance of organic electroluminescence device significant.
At present, the report that is used as hole mobile material with the conductive polymer nanometer line seldom, owing to being difficult to obtain favorable dispersibility and combining with effective assemble method, this class material is difficult to form fine and close flawless membrane structure, therefore limited its application on organic electroluminescence device, therefore pressed for a kind of method and obtain structure and tighten solid matter row and strict orderly conductive polymer nanometer line structure.
LB membrane technology can be accurate structure sequential 2 D assembly, especially nano-structure arrayization and the strong instrument of the nano ordered film preparation of high density.People such as Gibson utilize it to realize that surfactant modified diameter only is the Au of 1.4nm
55The orderly assembling of nanoparticle.Except assembling zero-dimension nano particulate, Si/SiO assembles with LB membrane technology in Lieber seminar
2The nucleocapsid structure semiconductor nanowires, large tracts of land, the high density nanowire oldered array of formation different spacing.At present, carry out nano-structural ordered arrangement with the LB membrane technology and also be in the starting stage, especially seldom to the polymer type investigation of materials, and adopt the orderly arrangement nano structure membrane that this method obtains owing to have high density, large-area advantage, be the ideal material of organic electroluminescence device hole transmission layer.
Although the OLED technology has obtained significant progress in recent years, still there are a lot of bottlenecks in present technology in the organic electroluminescent field.Be all to be vital from the material of film or from the hole transport rate that the structure of film improves device.Especially utilize the known conducting polymer materials with good photoelectric properties, especially nano structural material, adopt structure optimization, improve the structure of device performance as far as possible, as methods such as LB embrane method or static self assemblies, realize the raising of charge carrier injection efficiency, and obtain efficiently, device aspect cheaply, need people to go continuous exploration especially.
Summary of the invention
Problem to be solved by this invention is: the preparation method how a kind of organic electroluminescence device is provided, utilize this method prepared organic electroluminescent device can overcome existing defective in the prior art, improved the efficient that the hole is injected, improved the luminous efficiency of device, simultaneously the simple easy operating of preparation method.
Technical problem proposed by the invention is to solve like this: the preparation method that a kind of organic electroluminescence device is provided, device comprises anode layer, cathode layer and is arranged on organic function layer between described anode layer and the cathode layer, described organic function layer comprises hole injection layer and luminescent layer at least, described luminescent layer is luminous under the driving of additional power source, it is characterized in that the preparation method may further comprise the steps:
(1) device anode layer substrate is carried out the cleaning surfaces dried;
(2) the ultrasonic dispersion of conductive polymer nanometer line is dissolved in the organic solvent, forms and lead good dispersion;
(3) the conductive polymer nanometer line drips of solution that step (2) is obtained is added on parfacies, and forms nano wire film at gas/liquid interface press mold;
(4) nano wire film that obtains of control LB film balance sliding barrier compression step (3) is to the film forming mould, and the mode that adopts vertical film forming is transferred to nano wire film on the anode layer substrate that step (1) obtains and forms hole injection layer;
(5) the anode layer substrate-transfer that will form hole injection layer is to the organic vacuum vaporization chamber, and according to device architecture evaporation organic function layer successively, described organic function layer comprises luminescent layer, hole transmission layer or electron transfer layer;
(6) after finishing, the organic layer evaporation is sent to the preparation of carrying out cathode layer in the metal vacuum vaporization chamber;
(7) the resulting device of step (6) is sent to glove box and encapsulates, glove box is a nitrogen atmosphere;
(8) current-voltage-light characteristic of test component, the luminescent spectrum parameter of test component simultaneously.
Preparation method according to organic electroluminescence device provided by the present invention is characterized in that, described conductive polymer nanometer wire material comprises 3, poly-enedioxy thiophene of 4-and polypyrrole.
Preparation method according to organic electroluminescence device provided by the present invention is characterized in that, the conductive polymer nanometer line can form stable dispersion in organic solvent.
Preparation method according to organic electroluminescence device provided by the present invention is characterized in that, in the described hole injection layer preparation process, obtains different conduction ordered nano film structures by selecting different conductive polymer nanometer structures on anode layer.
Preparation method according to organic electroluminescence device provided by the present invention is characterized in that, described organic function layer also comprises hole transmission layer or electron transfer layer.
Preparation method according to organic electroluminescence device provided by the present invention, it is characterized in that, described luminescent layer is to send the fluorescent material layer of blue light or send the fluorescent material layer of green glow or send the dopant material layer of ruddiness, under the driving of described additional power source, send blue light or green glow or ruddiness.
Preparation method according to organic electroluminescence device provided by the present invention, it is characterized in that, described anode layer is metal-oxide film or metallic film, this metal-oxide film can be ito thin film or zinc-oxide film or zinc tin oxide film, and this metallic film can be the higher metallic films of work function such as gold, copper, silver; Described cathode layer is metallic film or alloy firm, and this metallic film can be the alloy firm of the lower metallic film of lithium or work functions such as magnesium or calcium or strontium or aluminium or indium or they and copper or gold or silver etc.
Preparation method according to organic electroluminescence device provided by the present invention is characterized in that, described electron transfer layer is metal complex material Huo person oxadiazole electron-like transferring material, perhaps imidazoles electron transport material; Described hole mobile material can be aromatic diamine compounds or star triphenyl amine compound.
Preparation method according to organic electroluminescence device provided by the present invention, it is characterized in that, the fluorescent material layer of described blue light-emitting is two (2-methyl-oxine) (p-phenyl phenol) aluminium (BAlq) or 9,10-two-(2-naphthyl) anthracene (ADN or BAN); The described fluorescent material layer that sends green glow is Alq
3The described doping fluorescent material that sends redness is Alq
3: DCJTB doping type material, material of main part are Alq
3, the perhaps material that differs greatly of energy level such as ADN, dopant dye is generally DCJTB or red dyes such as DCM or DCMl.
Preparation method according to organic electroluminescence device provided by the present invention is characterized in that, may further comprise the steps:
(1) utilizes washing agent, ethanolic solution and deionized water antianode layer substrate to carry out ultrasonic cleaning, clean the back and dry up with drying nitrogen;
(2) with 3, the poly-ultrasonic dispersion of enedioxy thiophene nano wire of 4-is dissolved in acetone-chloroform, and the concentration of nano wire is 0.8mg/ml, so that form good dispersion solution;
(3) adopt microsyringe to extract 100 μ l 3,4-gathers enedioxy thiophene nano wire/acetone-chloroformic solution and drips in parfacies, treats to begin press mold behind the solvent evaporates 20min, and formed 3 at the gas/liquid interface this moment, and 4-gathers enedioxy thiophene nano wire film;
(4) the sliding barrier of control LB film balance compresses the mould of nano wire film to 30mN/m with the speed of 3mm/min, the mode that adopts vertical film forming is transferred to nano wire film on the anode layer substrate that step (1) obtains, rate of film build is 1mm/min, obtain 3,4-gathers the nano thread ordered film of enedioxy thiophene, also is the hole injection layer of device;
(5) the anode layer substrate-transfer that will prepare hole injection layer is to the organic vacuum vaporization chamber, and according to device architecture evaporation organic function layer successively, described organic function layer comprises luminescent layer, hole transmission layer or electron transfer layer;
(6) after finishing, the organic layer evaporation is sent to the preparation of carrying out cathode layer in the metal vacuum vaporization chamber;
(7) the resulting device of step (6) is sent to glove box and encapsulates, glove box is a nitrogen atmosphere, and device architecture is anode layer/3, and 4-gathers enedioxy thiophene nano wire/hole transmission layer/luminescent layer/electron transfer layer/cathode layer;
(8) current-voltage-light characteristic of test component, the luminescent spectrum parameter of test component simultaneously.
Preparation method according to organic electroluminescence device provided by the present invention is characterized in that, may further comprise the steps:
(1) utilizes washing agent, ethanolic solution and deionized water antianode substrate to carry out ultrasonic cleaning, clean the back and dry up with drying nitrogen;
(2) the ultrasonic dispersion of polypyrrole nano line is dissolved in four cyanogen furans-chloroforms, the concentration of nano wire is 1.0mg/ml, so that form good dispersion solution;
(3) adopt microsyringe to extract 100 μ l polypyrrole nano lines/four cyanogen furans-chloroforms and drip in parfacies, treat to begin press mold behind the solvent evaporates 20min, formed polypyrrole nano line film at the gas/liquid interface this moment;
(4) the sliding barrier of control LB film balance compresses the mould of nano wire film to 30mN/m with the speed of 3mm/min, the mode that adopts vertical film forming is transferred to nano wire film on the anode layer substrate that step (1) obtains, rate of film build is 1mm/min, obtaining the polypyrrole nano line order thin film, also is the hole injection layer of device;
(5) substrate that will deposit hole injection layer is transferred to the organic vacuum vaporization chamber, and according to device architecture evaporation organic function layer successively, described organic function layer comprises luminescent layer, hole transmission layer or electron transfer layer;
(6) after finishing, the organic layer evaporation is sent to the preparation of carrying out cathode layer in the metal vacuum vaporization chamber;
(7) device that step (6) is obtained is sent to glove box and encapsulates, and glove box is a nitrogen atmosphere, anode layer/polypyrrole nano line/hole transmission layer/luminescent layer/electron transfer layer/cathode layer;
(8) current-voltage-light characteristic of test component, the luminescent spectrum parameter of test component simultaneously.
Organic electroluminescence device according to preparation method's gained of the present invention is characterized in that, comprises following several structure:
1. anode/3,4-gathers enedioxy thiophene nano wire/hole transmission layer/luminescent layer/electron transfer layer/negative electrode;
2. anode/polypyrrole nano line/hole transmission layer/luminescent layer/electron transfer layer/negative electrode.
Among the preparation method of a kind of organic electroluminescence device provided by the present invention, by the conductive polymer nanometer line is formed the fine dispersion system, it is sprawled in parfacies, self assembly by LB film Dynamic Compression and nanostructure forms fine and close orderly conductive polymer nanometer structural membrane at the interface, and it is transferred to the hole injection layer of anode substrate surface as device, carry out the preparation of other functional layer of device and electrode film again.On the anode of OLED device, construct the hole injection layer of a kind of nano-structural ordered alignment film as device, improve the hole injection efficiency of device, common LB embrane method has been adopted in constructing of this layer ordered nano film, the preparation method is rationally simple, easy operating is with preparation technology's compatibility of other structure of device.Can realize the structurally ordered film of different conductive polymer nanometers by the assembling of different materials nano wire as hole injection layer, and realize the large tracts of land film forming.This ordered nano film structure can effectively reduce contact berrier between anode layer and the hole transmission layer, increases the injection efficiency of holoe carrier, improves the luminous efficiency of OLED device.
Conductive polymer nanometer structure in the hole injection layer is closely arranged in order, has the characteristics of conductivity height, ordered orientation.The present invention not only is used to make high-luminous-efficiency, long-life organic elctroluminescent device, and can be applicable to fields such as the backlight of Color Liquid Crystal Display, the lamp plate that throws light on.
Description of drawings
Fig. 1 be the structurally ordered film of conductive polymer nanometer as hole injection layer after device principle figure.
Wherein, 1, anode layer, 2, hole injection layer (the orderly film of conductive polymer nanometer line), 3, hole transmission layer, 4, luminescent layer, 5, electron transfer layer, 6, cathode layer, 7, additional power source.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
The invention provides a kind of structurally ordered film of conductive polymer nanometer of on anode layer, constructing as organic electroluminescence device of hole injection layer and preparation method thereof.By the conductive polymer nanometer line is formed the fine dispersion system, it is sprawled in parfacies, self assembly by LB film Dynamic Compression and nanostructure forms fine and close orderly conductive polymer nanometer structural membrane at the interface, and it is transferred to the hole injection layer of anode substrate surface as device, carry out the preparation of other functional layer of device and electrode film again.On the anode of OLED device, construct the hole injection layer of a kind of nano-structural ordered alignment film as device, improve the hole injection efficiency of device, common LB embrane method has been adopted in constructing of this layer ordered nano film, the preparation method is rationally simple, easy operating, can pass through other functional layer of conventional method fabricate devices, the preparation method of hole injection layer and OLED device preparing process compatibility.
Fig. 1 be conducting polymer multilayer order film as hole injection layer after device principle figure, wherein: 1, anode layer, 2, hole injection layer (the orderly film of conductive polymer nanometer line), 3, hole transmission layer, 4, luminescent layer, 5, electron transfer layer, 6, cathode layer, 7, additional power source.2 can construct different orderly films by selecting different conducting polymer materials.
Characteristics of the present invention are to have adopted the hole injection layer of the fine and close orderly alignment film of a kind of nano thread structure as the OLED device, and the thickness of hole injection layer can be regulated and control by the diameter of nano wire.
Rely on ripe LB film film build method, the hole injection layer of the present invention's preparation is in order strict and controlled, can be transferred on the multiple substrate, and realize the large tracts of land film forming, is suitable for the large-area OLEDs preparation of devices.
Adopt some organic electroluminescence devices of the present invention's preparation to be exemplified below:
1. anode/3,4-gathers enedioxy thiophene nano wire/hole transmission layer/luminescent layer/electron transfer layer/negative electrode;
2. anode/polypyrrole nano line/hole transmission layer/luminescent layer/electron transfer layer/negative electrode.
Below be specific embodiments of the invention:
Embodiment 1
As shown in Figure 1, the organic function layer in the device architecture comprises hole transmission layer 3, luminescent layer 4 and electron transfer layer 5, and wherein luminescent layer 4 is respectively blue light-emitting layer or green light emitting layer.
The hole transport layer material of device is NPB, and the luminescent layer material is BAlq or Alq
3, electron transport material is Alq
3, cathode layer Mg:Ag alloy.The entire device structrual description is:
Glass substrate/ITO/3,4-gathers enedioxy thiophene nano wire (diameter 20nm)/NPB (30nm)/BAlq (10nm)/Alq
3(10nm)/Mg:Ag (90nm)
The preparation method is as follows:
(1) utilizes washing agent, ethanolic solution and deionized water antianode layer substrate to carry out ultrasonic cleaning, clean the back and dry up with drying nitrogen;
(2) with 3, the poly-ultrasonic dispersion of enedioxy thiophene nano wire of 4-is dissolved in acetone/chloroform, and the concentration of nano wire is 0.8mg/ml, so that form good dispersion solution;
(3) adopt microsyringe to extract 100 μ l 3,4-gathers enedioxy thiophene nano wire/acetone-chloroformic solution and drips in parfacies, treats to begin press mold behind the solvent evaporates 20min, and formed 3 at the gas/liquid interface this moment, and 4-gathers enedioxy thiophene nano wire film;
(4) the sliding barrier of control LB film balance compresses the mould of nano wire film to 30mN/m with the speed of 3mm/min, adopt the mode of vertical film forming that nano wire film is transferred on the substrate substrate after handling, rate of film build is 1mm/min, obtain 3,4-gathers the nano thread ordered film of enedioxy thiophene, also is the hole injection layer of device;
(5) substrate that will deposit behind the hole injection layer is transferred to the organic vacuum vaporization chamber, treats that room pressure is 4 * 10
-4Pa begins to carry out the evaporation of organic film.According to the device architecture as mentioned above hole transmission layer NPB of evaporation successively is 30nm, luminescent layer material B Alq layer 10nm, Alq
3Layer 10nm and double as electron transfer layer.The evaporation speed 0.1nm/s of each organic layer, evaporation speed and thickness are by near the film thickness gauge monitoring that is installed in the substrate;
(6) after the organic layer evaporation finishes, substrate is sent to the preparation of carrying out metal electrode in the metal vacuum vaporization chamber.Its air pressure is 3 * 10
-3Pa, evaporation speed is 1nm/s, Mg in the alloy, the Ag ratio is～10: 1, thicknesses of layers is 90nm.Evaporation speed and thickness are by near the film thickness gauge monitoring that is installed in the substrate;
(7) ready-made device is sent to glove box and encapsulates, glove box is 99.9% nitrogen atmosphere;
(8) current-voltage-light characteristic of test component, the luminescent spectrum parameter of test component simultaneously.
As shown in Figure 1, the organic function layer in the device architecture comprises hole transmission layer 3, luminescent layer 4 and electron transfer layer 5, and wherein luminescent layer 4 is respectively blue light-emitting layer or green light emitting layer.
The hole transport layer material of device is NPB, and the luminescent layer material is BAlq or Alq
3, electron transport material is Alq
3, cathode layer Mg:Ag alloy.The entire device structrual description is:
Glass substrate/ITO/3,4-gathers enedioxy thiophene nano wire (diameter 40nm)/NPB (30nm)/BAlq (10nm)/Alq
3(10nm)/Mg:Ag (90nm)
The preparation of devices flow process is identical with execution mode 1.
As shown in Figure 1, the organic function layer in the device architecture comprises hole transmission layer 3, luminescent layer 4 and electron transfer layer 5, and wherein luminescent layer 4 is respectively blue light-emitting layer or green light emitting layer.
The hole transport layer material of device is NPB, and the luminescent layer material is BAlq or Alq
3, electron transport material is Alq
3, cathode layer Mg:Ag alloy.The entire device structrual description is:
Glass substrate/ITO/ polypyrrole nano line (diameter 30nm)/NPB (30nm)/BAlq (10nm)/Alq
3(10nm)/Mg:Ag (90nm)
The preparation of devices flow process is identical with execution mode 1.
As shown in Figure 1, the organic function layer in the device architecture comprises hole transmission layer 3, luminescent layer 4 and electron transfer layer 5, and wherein luminescent layer 4 is respectively blue light-emitting layer or green light emitting layer.
The hole transport layer material of device is NPB, and the luminescent layer material is BAlq or Alq
3, electron transport material is Alq
3, cathode layer Mg:Ag alloy.The entire device structrual description is:
Glass substrate/ITO/ polypyrrole nano line (diameter 20nm)/NPB (30nm)/BAlq (10nm)/Alq
3(10nm)/Mg:Ag (90nm)
The preparation of devices flow process is identical with execution mode 1.
Claims (10)
1, a kind of preparation method of organic electroluminescence device, device comprises anode layer, cathode layer and is arranged on organic function layer between described anode layer and the cathode layer, described organic function layer comprises hole injection layer and luminescent layer at least, described luminescent layer is luminous under the driving of additional power source, it is characterized in that, may further comprise the steps:
(1) device anode layer substrate is carried out the cleaning surfaces dried;
(2) the ultrasonic dispersion of conductive polymer nanometer line is dissolved in the organic solvent, forms good dispersion;
(3) the conductive polymer nanometer line drips of solution that step (2) is obtained is added on parfacies, and forms nano wire film at gas/interface press mold;
(4) nano wire film that obtains of control LB film balance sliding barrier compression step (3) is to the film forming mould, and the mode that adopts vertical film forming is transferred to nano wire film on the anode layer substrate that step (1) obtains and forms hole injection layer;
(5) the anode layer substrate-transfer that will form hole injection layer is to the organic vacuum vaporization chamber, and according to device architecture evaporation organic function layer successively, described organic function layer comprises luminescent layer, hole transmission layer or electron transfer layer;
(6) after finishing, the organic layer evaporation is sent to the preparation of carrying out cathode layer in the metal vacuum vaporization chamber;
(7) the resulting device of step (6) is sent to glove box and encapsulates, glove box is a nitrogen atmosphere;
(8) current-voltage-light characteristic of test component, the luminescent spectrum parameter of test component simultaneously.
2, the preparation method of organic electroluminescence device according to claim 1 is characterized in that, described conductive polymer nanometer wire material comprises 3, poly-enedioxy thiophene of 4-and polypyrrole.
3, the preparation method of organic electroluminescence device according to claim 1 is characterized in that, the conductive polymer nanometer line can form stable dispersion in organic solvent.
4, the preparation method of organic electroluminescence device according to claim 1, it is characterized in that, in the described hole injection layer preparation process, on anode layer, obtain different conduction ordered nano film structures by selecting different conductive polymer nanometer structures.
5, the preparation method of organic electroluminescence device according to claim 1 is characterized in that, described organic function layer also comprises hole transmission layer or electron transfer layer.
6, the preparation method of organic electroluminescence device according to claim 1, it is characterized in that, described luminescent layer is to send the fluorescent material layer of blue light or send the fluorescent material layer of green glow or send the dopant material layer of ruddiness, under the driving of described additional power source, send blue light or green glow or ruddiness.
7, the preparation method of organic electroluminescence device according to claim 1 is characterized in that, described electron transfer layer is metal complex material Huo person oxadiazole electron-like transferring material, perhaps imidazoles electron transport material; Described hole mobile material is aromatic diamine compounds or star triphenyl amine compound.
8, the preparation method of organic electroluminescence device according to claim 1 is characterized in that, the fluorescent material layer of described blue light-emitting is two (2-methyl-oxine) (p-phenyl phenol) aluminium or 9,10-two-(2-naphthyl) anthracene; The described fluorescent material layer that sends green glow is Alq
3The described doping fluorescent material that sends redness is Alq
3: DCJTB doping type material, material of main part are Alq
3Perhaps the ADN dopant dye is DCJTB or DCM or DCM1 red dye.
9, a kind of preparation method of organic electroluminescence device is characterized in that, may further comprise the steps:
(1) utilizes washing agent, ethanolic solution and deionized water antianode layer substrate to carry out ultrasonic cleaning, clean the back and dry up with drying nitrogen;
(2) with 3, the poly-ultrasonic dispersion of enedioxy thiophene nano wire of 4-is dissolved in acetone-chloroform, and the concentration of nano wire is 0.8mg/ml, forms good dispersion solution;
(3) adopt microsyringe to extract 100 μ l 3,4-gathers enedioxy thiophene nano wire/acetone-chloroformic solution and drips in parfacies, treats to begin press mold behind the solvent evaporates 20min, and formed 3 at the gas/liquid interface this moment, and 4-gathers enedioxy thiophene nano wire film;
(4) the sliding barrier of control LB film balance compresses the mould of nano wire film to 30mN/m with the speed of 3mm/min, the mode that adopts vertical film forming is transferred to nano wire film on the anode layer substrate that step (1) obtains, rate of film build is 1mm/min, obtain 3,4-gathers the nano thread ordered film of enedioxy thiophene, also is the hole injection layer of device;
(5) the anode layer substrate-transfer that will prepare hole injection layer is to the organic vacuum vaporization chamber, and according to device architecture evaporation organic function layer successively, described organic function layer comprises luminescent layer, hole transmission layer or electron transfer layer;
(6) after finishing, the organic layer evaporation is sent to the preparation of carrying out cathode layer in the metal vacuum vaporization chamber;
(7) the resulting device of step (6) is sent to glove box and encapsulates, glove box is a nitrogen atmosphere, anode layer/3, and 4-gathers enedioxy thiophene nano wire/hole transmission layer/luminescent layer/electron transfer layer/cathode layer;
(8) current-voltage-light characteristic of test component, the luminescent spectrum parameter of test component simultaneously.
10, a kind of preparation method of organic electroluminescence device is characterized in that, may further comprise the steps:
(1) utilizes washing agent, ethanolic solution and deionized water antianode substrate to carry out ultrasonic cleaning, clean the back and dry up with drying nitrogen;
(2) the ultrasonic dispersion of polypyrrole nano line is dissolved in four cyanogen furans-chloroforms, the concentration of nano wire is 1.0mg/ml, forms good dispersion solution;
(3) adopt microsyringe to extract 100 μ l polypyrrole nano lines/four cyanogen furans-chloroforms and drip in parfacies, treat to begin press mold behind the solvent evaporates 20min, formed polypyrrole nano line film at the gas/liquid interface this moment;
(4) the sliding barrier of control LB film balance compresses the mould of nano wire film to 30mN/m with the speed of 3mm/min, the mode that adopts vertical film forming is transferred to nano wire film on the anode layer substrate that step (1) obtains, rate of film build is 1mm/min, obtaining the polypyrrole nano line order thin film, also is the hole injection layer of device;
(5) substrate that will deposit hole injection layer is transferred to the organic vacuum vaporization chamber, and according to device architecture evaporation organic function layer successively, described organic function layer comprises luminescent layer, hole transmission layer or electron transfer layer;
(6) after finishing, the organic layer evaporation is sent to the preparation of carrying out cathode layer in the metal vacuum vaporization chamber;
(7) device that step (6) is obtained is sent to glove box and encapsulates, and glove box is a nitrogen atmosphere, anode layer/polypyrrole nano line/hole transmission layer/luminescent layer/electron transfer layer/cathode layer;
(8) current-voltage-light characteristic of test component, the luminescent spectrum parameter of test component simultaneously.
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