CN107316947A - The flexible OLED luminescent devices preparation method of anode construction based on novel laminated film - Google Patents
The flexible OLED luminescent devices preparation method of anode construction based on novel laminated film Download PDFInfo
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- CN107316947A CN107316947A CN201710365164.8A CN201710365164A CN107316947A CN 107316947 A CN107316947 A CN 107316947A CN 201710365164 A CN201710365164 A CN 201710365164A CN 107316947 A CN107316947 A CN 107316947A
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- graphene
- laminated film
- pedot
- luminescent devices
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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
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Abstract
The present invention relates to the flexible OLED luminescent devices preparation method of the anode construction based on novel laminated film, OLED illuminating parts include luminescent layer and the negative electrode positioned at luminescent layer side, and method comprises the following steps：S1, graphene is grown on copper foil using the method for chemical vapor deposition；S2, transfer graphene on flexible PET substrates；S3, by the graphene/PET prepared be put into HNO3 solution soak, then dry；S4, on the graphene handled well spray PEDOT：PSS solution, then puts and dries on hot plate；S5, by the graphene/PEDOT prepared：PSS composite film is put into vacuum cavity, using the technique of vacuum evaporation by graphene/PEDOT：PSS composite film heating is plated on the luminescent layer side opposite with negative electrode as anode, prepares OLED luminescent devices.Graphene makes anode have that carrier mobility is high, mechanical flexibility is good and the characteristic such as transmitance height as the anode of photoelectric device；PEDOT：PSS makes anode have the characteristic of high conductivity, high work function and high transmittance.
Description
Technical field
The present invention relates to flexible OLED luminescent devices, more specifically to a kind of anode based on novel laminated film
The flexible OLED luminescent devices preparation method of structure.
Background technology
Flexible organic electro-luminescence diode (FOLED) is due to cost is low, excitation is high, lightweight and luminous efficiency
High many advantages, such as and get more and more people's extensive concerning.
Tin indium oxide (ITO) is a kind of the mixed of indium (III) oxide (In2O3) and tin (IV races) oxides (SnO2)
Compound, usual mass ratio is 90%In2O3,10%SnO2.It is transparent in film-form, shows slightly dark brown.In bulk state, it
In yellow grey partially.Indium tin oxide films are most often physical vapour deposition (PVD) or the method for some sputter-deposition technologies is deposited to
Surface.
The main characteristic of tin indium oxide is the conduction of its electricity and optically transparent combination, however, needing to make in thin film deposition
Go out to compromise, because high concentration electric charge carrier will increase the electrical conductivity of material, but its transparency can be reduced.
Traditional OLED uses indium-tin oxide anode, because the price of indium is high and supply is limited, ITO layer fragile and soft
The shortage of toughness and the layer deposition of costliness require vacuum so that ITO is difficult to prepare flexible device, and other substituents are just set
Method is found.
The content of the invention
The technical problem to be solved in the present invention is that there is provided a kind of flexibility of the anode construction based on novel laminated film
OLED luminescent device preparation methods.
The technical solution adopted for the present invention to solve the technical problems is：A kind of anode based on novel laminated film of construction
The flexible OLED luminescent devices preparation method of structure, the OLED illuminating parts include luminescent layer and positioned at the luminescent layer side
Negative electrode, the preparation method comprises the following steps：
S1, graphene is grown on copper foil using the method for chemical vapor deposition；
S2, transfer graphene on flexible PET substrates；
S3, by the graphene/PET prepared be put into HNO3 solution soak, then dry；
S4, on the graphene handled well spray PEDOT：PSS solution, then puts and dries on hot plate；
S5, by the graphene/PEDOT prepared：PSS composite film is put into vacuum cavity, using the work of vacuum evaporation
Skill is by graphene/PEDOT：PSS composite film heating is plated on the luminescent layer side opposite with the negative electrode as anode,
Prepare OLED luminescent devices.
Preferably, in the step S1, the thickness of the copper foil is 20-70um.
Preferably, in the step S1, carbon source is CH4, and gas carrier is reducing gas argon gas.
Preferably, in the step S2, the supporting layer during transfer graphene is used as using PMMA or PDMS.
Preferably, in the step S2, the supporting layer after PET substrates is transferred to using the method for secondary dissolving molten with original
Liquid weight is molten.
Preferably, in the step S3, HNO3 is 2-100mol, and soak time is 0.5-30 minutes.
Preferably, in the step S3, it is placed in 50-300 DEG C of heating plate and dries 1-20 minutes.
Preferably, in the step S4, the PEDOT：In PSS solution, deionized water and dimethyl sulfoxide (DMSO) are added,
PEDOT：PSS, deionized water and dimethyl sulfoxide (DMSO) volume ratio are 2-6:2-8:0.5-3.
Preferably, in the step S4, the PEDOT of spraying：PSS thickness is 10-200nm.
Preferably, in the step S5, vacuum pressure is 1*10-4To 2*10-8Pa。
Implement the flexible OLED luminescent devices preparation method of the anode construction based on novel laminated film of the present invention, have
Following beneficial effect：In the present invention preparation method production luminescent device graphene as photoelectric device anode so that
The anode of luminescent device has that carrier mobility is high, mechanical flexibility is good and the characteristic such as transmitance height；In addition, PEDOT：PSS
So that the anode of luminescent device has high conductivity, high work function and high transmittance.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is prepared by the flexible OLED luminescent devices of the anode construction based on novel laminated film in the embodiment of the present invention
The schematic flow sheet of method.
Embodiment
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now compare accompanying drawing and describe in detail
The embodiment of the present invention.
OLED illuminating parts in a preferred embodiment of the invention include luminescent layer and the negative electrode positioned at luminescent layer side, such as
Shown in Fig. 1, the flexible OLED luminescent devices preparation method of the anode construction based on novel laminated film comprises the following steps：
S1, graphene is grown on copper foil using the method for chemical vapor deposition；
S2, transfer graphene on flexible PET (polyethylene terephthalate) substrate；
S3, the graphene/PET prepared is put into HNO3 (nitric acid) solution and soaked, then dried；
S4, on the graphene handled well spray PEDOT：PSS (poly- (3,4- Ethylenedioxy Thiophene)-poly- (styrene sulphurs
Acid)) solution, then put and dry on hot plate；
S5, by the graphene/PEDOT prepared：PSS composite film is put into vacuum cavity, using the work of vacuum evaporation
Skill is by graphene/PEDOT：PSS composite film heating is plated on the luminescent layer side opposite with negative electrode as anode, is prepared
OLED luminescent devices.
With anode of the graphene as photoelectric device so that the anode of luminescent device has carrier mobility high, mechanical
The characteristic such as flexible and transmitance is high.In addition, PEDOT：PSS causes the anode of luminescent device to have high conductivity, high work content
Number and high transmittance.
In step sl, the thickness of copper foil is 20-70um, and copper foil is high-purity copper foil, and purity is 99.9%.
When carrying out chemical vapor deposition, carbon source is CH4, and protective gas is reducing gas argon gas.First it is passed through protective gas
20~30 minutes argon gas time, stop protective gas argon gas and be passed through, then be passed through reacting gas methane CH4, about 30 minutes；Again
Protective gas emptying reacting gas is passed through, under protective gas until reaction cavity is cooled to room temperature.During reaction, pressure
For 400-600Pa, temperature is 900-1000 DEG C.
In step s 2, the supporting layer during transfer graphene is used as using PMMA or PDMS.
Further, the supporting layer transferred to using the method for secondary dissolving after PET substrates is molten with original solution weight, to promote
Enter the contact of graphene and flexibility PET substrates, so as to reduce the breakage of graphene.
Preferably, in step S3, HNO3 is 2-100mol, and soak time is 0.5-30 minutes.50-300 is placed on during drying
Dried 1-20 minutes in DEG C heating plate.
Further, in step S4, PEDOT：In PSS solution, deionized water and dimethyl sulfoxide (DMSO), PEDOT are added：
PSS, deionized water and dimethyl sulfoxide (DMSO) volume ratio are 2-6:2-8:0.5-3.Preferably, the PEDOT of spraying：PSS thickness
Degree is 10-200nm.Further, in step s 5, vacuum pressure is 1*10-4To 2*10-8Pa。
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of flexible OLED luminescent devices preparation method of anode construction based on novel laminated film, the OLED illuminating parts
Negative electrode including luminescent layer and positioned at the luminescent layer side, it is characterised in that the preparation method comprises the following steps：
S1, graphene is grown on copper foil using the method for chemical vapor deposition；
S2, transfer graphene on flexible PET substrates；
S3, by the graphene/PET prepared be put into HNO3 solution soak, then dry；
S4, on the graphene handled well spray PEDOT：PSS solution, then puts and dries on hot plate；
S5, by the graphene/PEDOT prepared：PSS composite film is put into vacuum cavity, will using the technique of vacuum evaporation
Graphene/PEDOT：PSS composite film heating is plated on the luminescent layer side opposite with the negative electrode as anode, is prepared
Go out OLED luminescent devices.
2. the flexible OLED luminescent devices preparation side of the anode construction according to claim 1 based on novel laminated film
Method, it is characterised in that in the step S1, the thickness of the copper foil is 20-70um.
3. it is prepared by the flexible OLED luminescent devices of the anode construction according to claim 1 or 2 based on novel laminated film
Method, it is characterised in that in the step S1, carbon source is CH4, and gas carrier is reducing gas argon gas.
4. the flexible OLED luminescent devices preparation side of the anode construction according to claim 1 based on novel laminated film
Method, it is characterised in that in the step S2, the supporting layer during transfer graphene is used as using PMMA or PDMS.
5. the flexible OLED luminescent devices preparation side of the anode construction according to claim 4 based on novel laminated film
Method, it is characterised in that in the step S2, transfers to the supporting layer after PET substrates molten with original using the method for secondary dissolving
Liquid weight is molten.
6. the flexible OLED luminescent devices preparation side of the anode construction according to claim 1 based on novel laminated film
Method, it is characterised in that in the step S3, HNO3 is 2-100mol, and soak time is 0.5-30 minutes.
7. it is prepared by the flexible OLED luminescent devices of the anode construction based on novel laminated film according to claim 1 or 6
Method, it is characterised in that in the step S3, is placed in 50-300 DEG C of heating plate and dries 1-20 minutes.
8. the flexible OLED luminescent devices preparation side of the anode construction according to claim 1 based on novel laminated film
Method, it is characterised in that in the step S4, the PEDOT：In PSS solution, deionized water and dimethyl sulfoxide (DMSO) are added,
PEDOT：PSS, deionized water and dimethyl sulfoxide (DMSO) volume ratio are 2-6:2-8:0.5-3.
9. it is prepared by the flexible OLED luminescent devices of the anode construction based on novel laminated film according to claim 1 or 8
Method, it is characterised in that in the step S4, the PEDOT of spraying：PSS thickness is 10-200nm.
10. the flexible OLED luminescent devices preparation side of the anode construction according to claim 1 based on novel laminated film
Method, it is characterised in that in the step S5, vacuum pressure is 1*10-4To 2*10-8Pa。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109841762A (en) * | 2019-03-28 | 2019-06-04 | 合肥工业大学 | A kind of preparation method of the Flexible light-emitting diodes based on graphene |
| CN112885980A (en) * | 2021-01-29 | 2021-06-01 | 南京大学 | Method for manufacturing graphene all-electrode transparent OLED device |
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| CN101901640A (en) * | 2010-06-21 | 2010-12-01 | 南京邮电大学 | Method for preparing flexible and transparent conductive graphene membrane |
| US20110108116A1 (en) * | 2009-11-11 | 2011-05-12 | Korea Institute Of Machinery And Materials | P-type NiO conducting film for organic solar cell, a method for preparation of NiO conducting film, and an organic solar cell with enhanced light-to-electric energy conversion using the same |
| CN103345963A (en) * | 2013-06-28 | 2013-10-09 | 重庆墨希科技有限公司 | Graphene composite transparent electrode and preparation method and application thereof |
| CN103824615A (en) * | 2014-02-18 | 2014-05-28 | 南京邮电大学 | Method for preparing flexible transparent electrode through vapor phase polymerization poly(3,4-ethylenedioxythiophene) and graphene lamination |
| CN105489767A (en) * | 2015-12-23 | 2016-04-13 | 中国科学院重庆绿色智能技术研究院 | Graphene/polymer electrode-based flexible perovskite solar cell and preparation |
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Patent Citations (5)
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| US20110108116A1 (en) * | 2009-11-11 | 2011-05-12 | Korea Institute Of Machinery And Materials | P-type NiO conducting film for organic solar cell, a method for preparation of NiO conducting film, and an organic solar cell with enhanced light-to-electric energy conversion using the same |
| CN101901640A (en) * | 2010-06-21 | 2010-12-01 | 南京邮电大学 | Method for preparing flexible and transparent conductive graphene membrane |
| CN103345963A (en) * | 2013-06-28 | 2013-10-09 | 重庆墨希科技有限公司 | Graphene composite transparent electrode and preparation method and application thereof |
| CN103824615A (en) * | 2014-02-18 | 2014-05-28 | 南京邮电大学 | Method for preparing flexible transparent electrode through vapor phase polymerization poly(3,4-ethylenedioxythiophene) and graphene lamination |
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| CN109841762A (en) * | 2019-03-28 | 2019-06-04 | 合肥工业大学 | A kind of preparation method of the Flexible light-emitting diodes based on graphene |
| CN112885980A (en) * | 2021-01-29 | 2021-06-01 | 南京大学 | Method for manufacturing graphene all-electrode transparent OLED device |
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Application publication date: 20171103 |