CN109119538A - The translucent no indium polymer solar battery of flexible 1-D photon crystal regulation - Google Patents
The translucent no indium polymer solar battery of flexible 1-D photon crystal regulation Download PDFInfo
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Abstract
The invention discloses a kind of flexibilities of flexible 1-D photon crystal regulation without indium translucent polymer solar battery, the flexible device structure is by introducing flexible 1-D photon crystal, in conjunction with it the particular range of wavelengths high reflection the characteristics of, sufficiently increase incident light in the propagation path of device active layers, finally realizes efficient Grazing condition translucent polymer solar battery.Furthermore, according to the difference of device active layers or practical application needs, the flexible 1-D photon crystal for different high reflection wave-length coverages of simply and easily arranging in pairs or groups, contradiction between the effective solution photoelectric conversion efficiency and light penetration of translucent battery device, while the characteristics of realize Color tunable control.
Description
Technical field
The present invention relates to technical field of solar batteries, in particular to a kind of polymerization of Grazing condition 1-D photon crystal regulation
Object solar battery.
Background technique
Solar energy is the important means for solving energy crisis as a kind of renewable energy.In all solar battery skills
In art, polymer solar battery as a kind of emerging photovoltaic technology, with its preparation cost low, flexible light weight, be suitable for
Outstanding advantages of roll-to-roll production, increasingly attracts wide public concern.But the polymer solar battery reported at present is most
Number is hard glass substrate, easily broken, not foldable, it is difficult to meet the daylighting of the special occasions such as intelligence wearing and window, ceiling
It is required that.
In recent years, flexible translucent polymer photovoltaics cause global extensive concern and are rapidly developed,
It is considered being possible to bring an electronic technology revolution.Translucent flexible polymer solar battery as solar battery one
Kind new varieties, start to be valued by people in recent years, it can be mounted on the top of streamlined car, the buildings such as house
Roof and arc wall face, application prospect are bright.On the other hand, flexible translucent solar battery, can be with while power generation
Guarantee the requirement of daylighting within doors, suitable for building structure such as transparent mansion window, skylight and sunshine rooftops.More characteristic,
Flexible translucent polymer solar battery can be directly attached on window-glass, realize the dual function of power generation and daylighting.
Translucent flexible polymer solar battery is very suitable to Photovoltaic Building Integration scheme.Therefore flexibility is translucent polymer
The inexorable trend of photovoltaic device development.Since device light transmission and light absorption are two conflicting physical parameters, i.e., high is saturating
Light necessarily leads to low active layer light absorption, this makes translucent photovoltaic device efficiency all relatively low.
1-D photon crystal is in space by the two or more materials with differing dielectric constant (refractive index) according to certain
Cycle sequences arrangement be formed by ordered structural material, have extraordinary photon ability of regulation and control and color-variability, be
A solution of the good transmitance of translucent polymer solar battery and efficiency enhancing is realized simultaneously.It is semi-transparent in order to improve
Bright polymer photovoltaics performance, while retaining considerable light transmittance, in the translucent photovoltaic device of rigidity, people are generallyd use
Inorganic 1-D photon crystal improves light absorption in device, and then improves device performance.Inorganic 1-D photon crystal be by two kinds with
The upper inorganic, metal oxide material with differing dielectric constant (refractive index) arranges institute according to certain cycle sequences in space
The optical micro/nano structure of formation.The rigid basement polymer solar electricity of existing inorganic 1-D photon crystal regulation at present
Pond, for example, there is seminar to report the substrate of glass polymer of the inorganic 1-D photon crystal regulation of titania/silica too
Positive energy battery device (Journal of Materials Chemistry A 2016,4,11821-11828).
However, inorganic one-dimensional photonic crystal film flexibility is poor, under macrobending and large deformation or stretched condition easily
It is broken, therefore is not appropriate for using in flexible translucent polymer battery.Secondly, passing through the different inorganic gold of thermal evaporation deposition
It is larger to belong to oxide process energy consumption, is not suitable for the low-carbon energy-saving environmental protection advocated at present production preparation process.Finally, inorganic one-dimensional light
The translucent polymer battery of sub- crystal control has the shortcomings that curvature is poor, makes it that can not be integrated in wearable flexible fabric
On, limit the marketization application of this kind of device.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology and deficiency, provides a kind of flexible 1-D photon crystal regulation
Translucent no indium polymer solar battery improved without indium flexible translucent polymer too using flexible 1-D photon crystal
The light capture efficiency of positive energy battery, and then regulate and control the photoelectric conversion efficiency and light penetration of battery device, realize that high-performance is complete
Flexible polymer photovoltaic device.
The purpose of the present invention is realized by the following technical solution: a kind of translucent nothing of flexibility 1-D photon crystal regulation
Indium polymer solar battery, successively by flexible 1-D photon crystal (1), flexible PET substrate (2), bifunctional layer (seed layer and
Optical interval layer) polymer P FN (3), Ag transparent cathode (4), electronics decorative layer polymer P FN (5), polymer active layers (6),
The lamination layer structure of conducting polymer PEDOT:PSS transparent anode (7) forms.
Preferably, bifunctional layer polymer P FN with a thickness of 40~50nm, Ag transparent cathode with a thickness of 8~15nm, electricity
Sub- decorative layer polymer P FN with a thickness of 5~40nm, polymer active layers with a thickness of 80~300nm, conducting polymer
PEDOT:PSS transparent anode with a thickness of 50~150nm.
Preferably, polymer solar battery preparation step is as follows:
1) flexibility PET is successively cleaned in supersonic cleaning machine with deionized water and isopropanol, is subsequently placed into drying box and is done
It is dry stand-by；
2) PFN is dissolved using anhydrous methanol, and acetic anhydride is added in methanol solution, prepares PFN solution；Stand-by flexible
The upper spin coating PFN functional layer of PET；Then, the PET substrate for being covered with PFN to spin coating carries out ultraviolet/oxygen plasma treatment；
3) Ag is deposited under vacuum conditions；
4) the spin on polymers PFN electronics decorative layer on Ag electrode；
5) active layer solution is configured, PTB7:PCBM [70]: ICBA mixing is dissolved in the solvent C B added with additive:
In DIO:CN, and heat；Mixed solution is spin-coated on electron transfer layer PFN, obtains active layer, and dry in vacuum environment；
6) surfactant solution and dimethyl sulfoxide are added in PEDOT:PSS solution；And spin coating is led on active layer
Conductive film, finally heating evaporation falls the remaining moisture of film surface on warm table；
7) in the PET substrate back side of the above composite construction, the one-dimensional photon of polymer flexibility for different high reflection wavestrips of arranging in pairs or groups
Crystal.
Specifically, in step 2), to the PET substrate that spin coating is covered with PFN carry out power be 300~500W it is ultraviolet/
Oxygen plasma treatment.
Specifically, in step 5), polymer active layers solution by donor material PTB7 and acceptor material PCBM [70] and
ICBA is 1:1.5:0.25 mixing in mass ratio, and concentration 25mg/ml is dissolved in the solvent C B added with appropriate additive:
In DIO:CN, ratio 94:3:3v/v.
Preferably, active layer can be active layer material, polymer and small molecule material based on polymer and fullerene
Active layer and one of all-polymer active layer material.
Preferably, bifunctional layer polymer and electronics modification one polymer can be based on polymer and small molecule material
One of electronics modification/transport interface material.
Preferably, it realizes to regulate and control cathodic conductivity by the way that the Ag electrode of different-thickness is deposited.
Preferably, flexible 1-D photon crystal uses the polyester fiber and polymethyl methacrylate multilayer of different refractivity
Alternating is formed by stacking, and structure is [polyester fiber/polymethyl methacrylate]The number of plies, each thickness degree is the 1/ of center reflection wavelength
4。
Preferably, according to the flexible 1-D photon crystal of different absorption spectrum active layer appropriate mixs.
Preferably, it by periodically imprinting the polymer material of different refractivity, constructs to different wavelength range high reflection
Flexible 1-D photon crystal；Alternately superposition imprints for polyester fiber and polymethyl methacrylate multilayer, is adjusted with the number of plies different
Wave-length coverage high reflection adjusts reflected waveband according to every thickness degree.
Preferably, polymer solar battery structure includes that flexible translucent polymer solar battery element and flexibility are poly-
Close object 1-D photon crystal element, flexible translucent polymer solar battery element directly using flexible 1-D photon crystal as
Then substrate or both, which is prepared separately, to be superimposed.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) present invention combines flexible 1-D photon crystal and flexible translucent polymer solar battery for the first time, realizes
A kind of translucent polymer solar battery of the 1-D photon crystal regulation of Grazing condition, realizes that the low cost of Grazing condition is translucent
Photovoltaic device, flexible 1-D photon crystal not only can effectively improve the photoelectric conversion effect of translucent polymer solar battery
Rate, and can also neatly regulate and control the transmitance and display color of device according to actual needs.
(2) present invention constructs the novel no indium flexible translucent polymer solar electricity of device architecture on flexible substrates
Pond, with production cost is low, be easy to flexible integration, is suitable for extensive roll-to-roll print production.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment solar battery.
Fig. 2 be different flexible 1-D photon crystals regulations translucent polymer solar battery AM1.5G standard too
J-V the curve in sunlight source.
Fig. 3 is the external quantum efficiency figure of the translucent polymer solar battery of different flexible 1-D photon crystal regulations.
Fig. 4 is the optical transmission spectra of the translucent polymer solar battery of different flexible 1-D photon crystal regulations.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment 1
In recent years, with advances in technology and the improvement of people's living standards, solar battery using more and more extensive.
Traditional silicon solar cell cannot achieve translucent since active layer is thicker (2~4 microns), limits it and leads in translucent battery
The application in domain.Polymer solar battery is because active layer thickness generally only has 100nm or so, so that the sun both may be implemented in it
Can generate electricity can transmit sunlight again, therefore receive the extensive concern of researcher.Therefore, different from traditional crystalline silicon sun
The big feature that translucentization is it may be implemented in energy battery, polymer solar battery.By reducing translucent polymer too
The thickness and use transparent conductive cathode and anode of active layer in positive energy battery, so that translucent polymer solar battery can
For roof, metope or window etc., its application range is further widened.
The strong microcavity effect optical texture of 1-D photon crystal is introduced in translucent polymer solar battery, it can be effective
The translucent photovoltaic device active layer of raising to the capture ability of photon in a certain wavelength band, therefore effectively improve device
Energy.1-D photon crystal is made of two or more differing dielectric constant material in space periodic arrangement, works as electromagnetic wave
When propagating in this microcavity in periodic structure, the modulation of the period potential field of dielectric composition will receive, thus shape
At the photonic band gap for being similar to semiconductor energy band structure.If be not overlapped between photonic band gap, photon band gap just will form.Frequently
The photon that rate is fallen in band gap can not be propagated in the photonic crystal, the forbidden photon band material so photonic crystal is otherwise known as, can be with
The reflectivity close to 100% is obtained in particular range of wavelengths.1-D photon crystal catoptric arrangement is applied to translucent polymerization
In object solar battery, can obtain high reflection in a certain wave-length coverage makes active layer effectively absorb photon energy, and at it
His wave-length coverage realization is highly transmissive, solves the contradiction between translucent device efficient rate and the high grade of transparency, while realizing face
Color is adjustable.For example, it is Glass/ITO/TiO that Jilin University, which constructs device architecture in literary Juan et al.,2/PCDTBT:PCBM[70]/
WO3The translucent solar cell of/Ag/1DPC, by the way that different layers of 1-D photon crystals are deposited in Ag electrode surface, finally
Realize 5.31% photoelectric conversion efficiency and 25.1% light penetration.Marquis's soughing of the wind in forest trees seminar of Ji'nan University is in one-dimensional photon
Crystal (TiO2/SiO2/TiO2/SiO2/TiO2/SiO2/TiO2/SiO2) device architecture is prepared in ITO electrode is Glass/
1DPC/ITO/PFN/PTB7:PCBM [70]/PH1000 colored translucent polymeric object solar battery, energy conversion efficiency mention
High by 37%, transparency is more than 25%；In addition, this method is avoided on organic active layer by changing device preparation sequence
1-D photon crystal is deposited, effective protection active layer, device stability are improved.
In addition, common transparent conductive electrode is tin indium oxide (ITO) in translucent polymer solar battery, however,
ITO matter is crisp, is only suitable for applying in hard substrates such as glass, is not suitable for the flexible substrates such as PET, can not roll-to-roll continuous printing life
It produces.
Present invention flexibility 1-D photon crystal made of two kinds of different refractivity polymer, effectively has adjusted low cost
Without the optical field distribution inside indium flexible translucent polymer solar cell device, comparison is not using flexible 1-D photon crystal
Battery device, efficiency improve 20% or more, show the wide application prospect of this method.
Plasma treatment polymer/ultrathin metal electrode that the present invention uses (conjugated polymer PFN and Ag transparent electrode,
And the compound organic inorganic hybridization electrode for passing through ultraviolet/oxygen plasma treatment) flexibility is good, high conductance and high transmittance, with
Flexible 1-D photon crystal matching is good, therefore, can large area prepare Grazing condition 1-D photon crystal regulation organic solar
Battery has a good application prospect.
It is a kind of based on polymer flexibility 1-D photon crystal as back reflector flexibility without the indium translucent polymer sun
Energy battery, device are successively poly- by flexible 1-D photon crystal, flexible PET substrate, bifunctional layer (seed layer and optical interval layer)
Close object PFN, Ag transparent cathode, electronics decorative layer polymer P FN, polymer active layers, conducting polymer PEDOT:PSS (PH
1000) the lamination layer structure composition of transparent anode.
Bifunctional layer polymer P FN with a thickness of 40~50nm, Ag transparent cathode with a thickness of 8~15nm, electronics modify
One polymer PFN with a thickness of 5~40nm, polymer active layers with a thickness of 80~300nm, conducting polymer PEDOT:PSS
Transparent anode with a thickness of 50~150nm.
Battery preparation step is as follows:
1) flexibility PET successively uses deionized water and isopropanol to clean in supersonic cleaning machine 10-20 minutes, is subsequently placed into dry
Dried for standby in dry case.
2) PFN is dissolved using anhydrous methanol, and for the dissolubility for increasing PFN, 3 ‰ anhydrous vinegar is added in methanol solution
Acid prepares the PFN solution of 1mg/ml.The PFN functional layer that spin coating thickness is about 40nm on stand-by flexibility PET.Then, to having revolved
Apply the ultraviolet/oxygen plasma treatment for being covered with that the PET substrate progress power of PFN is 300~500W.
3) 5 × 10-4Evaporation thickness is the Ag of 8~15nm under the vacuum environment of Pa.
4) on Ag electrode spin coating 5nm polymer P FN electronics decorative layer.
5) polymer active layers solution is by donor material PTB7 (thieno [3,4-b] thiophene/benzo-
Dithiophene) with acceptor material PCBM [70] ([6,6]-phenyl-C71-butyric acid methyl ester) and
ICBA (indene-C60bisadduct) is mixed in mass ratio for 1:1.5:0.25, and concentration 25mg/ml is dissolved in and is added with
In the solvent C B:DIO:CN (94:3:3v/v) of appropriate additive, and 60 DEG C of 12 hours of heating on warm table.And it will mixing
Solution is spin-coated on electron transfer layer PFN, obtains the active layer of 80~100nm.And 5 × 10-4Pa vacuum environment below is dry
Dry 3~5 hours.The absorbing wavelength range of polymer active layers is 300~800nm.
6) dimethyl sulfoxide of 0.5% surfactant solution (FS -30) and 5% is added in PEDOT:PSS solution
(DMSO).And on active layer 50~150nm of spin coating thickness conductive film.Finally evaporated on warm table with 50 DEG C of heating 30s
Fall the remaining moisture of film surface.
7) in the PET substrate back side of the above composite construction, the one-dimensional photon of polymer flexibility for different high reflection wavestrips of arranging in pairs or groups
Crystal, model is respectively Type 1 (high reflection wave-length coverage is in 550nm or so), (high reflection wave-length coverage is in 650nm by Type 2
Left and right), Type 3 (high reflection wave-length coverage is in 380~850nm).
Polymer flexibility 1-D photon crystal (multi-layered polyester fiber/poly- methyl as shown in Figure 1 is made by the above method
Methyl acrylate) regulation without indium translucent polymer solar battery.Simultaneously for contrast verification, it is prepared for flexibility of not arranging in pairs or groups
The battery device (None) of 1-D photon crystal.Four kinds of device architectures are as follows, are respectively as follows:
None:PET/PFN/Ag/PFN/PTB7:PCBM [70]: ICBA/PEDOT:PSS
Type 1:F-1DPC (550nm)/PET/PFN/Ag/PFN/PTB7:PCBM [70]: ICBA/PEDOT:PSS
Type 2:F-1DPC (650nm)/PET/PFN/Ag/PFN/PTB7:PCBM [70]: ICBA/PEDOT:PSS
Type 3:F-1DPC (380~850nm)/PET/PFN/Ag/PFN/PTB7:PCBM [70]: ICBA/PEDOT:PSS
Fig. 2 is J-of the translucent polymer solar battery based on Different electrodes under AM1.5G standard analog sunlight
V curve.Every photoelectric parameter numerical value (including the J obtained by J-V curveSC、VOC, FF and PCE etc.) enumerated in table 1, table
1 for translucent polymer solar battery without photonic crystal, have standard solar source of the device of photonic crystal in AM1.5G
Characteristic parameter compares.Available from table 1, flexible translucent polymer solar battery photoelectric conversion efficiency reaches 4.28%,
Average light penetration in visible-range reaches 26.3%.Arrange in pairs or groups different 1-D photon crystals (Type 1, Type 2,
Type 3), it can effectively regulate and control the photoelectric conversion efficiency and transmitance of flexible translucent polymer battery device, realize parameter
Regulatable Grazing condition translucent polymer solar battery.Comparison does not use the translucent polymer of flexible 1-D photon crystal
Solar cell device, in VOCUnder conditions of remaining unchanged with FF, the use of flexible 1-D photon crystal improves battery device
Internal photoelectricity field distribution, the J of device Type 1, Type 2 and Type 3SC19.7%, 16.0% and has been respectively increased
25.9%.Finally, compared to the efficiency of the translucent polymer solar battery 4.28% for flexible 1-D photon crystal of not arranging in pairs or groups,
The efficiency of device Type 1, Type 2 and Type 3 have been respectively increased 5.12%, 4.95% and 5.41%.
Table 1
By Fig. 3, it can be seen that, four kinds of devices have photo response in the wider spectral region of 300~800nm.It is worth noting
, the introducing of 1-D photon crystal increases the external quantum efficiency of corresponding spectrum.With 380~850nm wave-length coverage high reflection
1-D photon crystal regulation translucent battery device performance for, battery device in the spectral region outer quantum effect
Rate is greatly improved, and realizes to the light capture ability enhancing of incident light to improve the short-circuit current density of device
The larger raising of device photoelectric transfer efficiency.
Embodiment 2
A kind of polymer solar battery structure of Grazing condition 1-D photon crystal regulation, including flexible translucent are poly- without indium
Close object solar cell device and flexible polymer 1-D photon crystal element.Translucent no indium polymer solar battery member
Part: PFN seed layer is located on flexible substrate PET；First transparency electrode layer is located on PFN seed layer；Electron transfer layer,
On first transparency electrode layer；Active layer is located on electron transfer layer；Second transparency electrode layer, be located at active layer it
On.Flexible 1-D photon crystal element is alternately superimposed using the polyester fiber and polymethyl methacrylate multilayer of different refractivity
It forms, structure is [polyester fiber/polymethyl methacrylate]The number of plies, each thickness degree is the 1/4 of center reflection wavelength.
Construct device architecture be PET/PFN/Ag/PFN/Active Layer/PH1000 flexible translucent polymer too
Positive energy battery, the Ag electrode by the way that different-thickness is deposited are realized to regulate and control cathodic conductivity.The increase of Ag thickness of electrode is increasing
The reflectivity of electrode is also increased while electrode conductivity and reduces its transmissivity.Therefore in above-mentioned translucent polymer
In solar battery, with the increase of Ag thickness of electrode, in optical property, the transmission of the visible wavelength range of battery device
Rate can gradually decrease；On electric property, battery device can capture ability due to stronger light and improve JSC, to improve device
The photoelectric conversion efficiency of part.
By periodically imprinting the polymer material of different refractivity, the flexibility one to different wavelength range high reflection is constructed
Dimensional photonic crystal.Alternately superposition imprints for polyester fiber and polymethyl methacrylate multilayer, adjusts different wavelength range with the number of plies
High reflection adjusts reflected waveband according to every thickness degree.Wherein, with the increase of the coining number of plies, particular range of wavelengths can be improved
Reflectivity；And the polymer material of different refractivity is selected, the high reflection wavelength of the change 1-D photon crystal for the property of can choose
Range.
According to the flexible 1-D photon crystal of different absorption spectrum active layer appropriate mixs, translucent photovoltaic device can be direct
It is final to realize Color tunable control using flexible 1-D photon crystal as substrate, or both by being overlapped in the form of coining etc.
Grazing condition 1-D photon crystal translucent polymer solar battery.
The preparation of device the following steps are included:
(1) flexible transparent substrate pre-processes:
Flexible PET is successively placed in isopropanol and deionized water and is cleaned by ultrasonic respectively 20 minutes, then with dry nitrogen
Air-blowing is dry, and last ultraviolet/corona treatment is stand-by after five minutes.
(2) prepared by flexible transparent electrode:
Using sol evenning machine, spin coating polymer solutions, acquisition surface are covered with the transparent of about 40nm thickness PFN on flexible substrates
Flexible substrates.Then, UV/ozone corona treatment 30s is carried out to the flexible substrates.Finally it is being placed on vacuum coating equipment
In, in vacuum degree 5 × 10-5Pa or less deposits the Ag electrode of about 12nm thickness, obtains flexible and transparent cathode electrode substrate.
(3) prepared by flexible translucent polymer solar battery:
Using the PFN solution of sol evenning machine spin coating about 5nm thickness in flexible transparent electrode, obtains surface and be covered with PFN electronics
First transparent flexible electrically-conductive backing plate of transport layer.
Active layer solution PTB7:PCBM [70]: the mixed proportion of ICBA is 1:1.5:0.25, concentration 25mg/ml, dissolution
Added with appropriate additive solvent C B:DIO:CN (94:3:3v/v) in, and on warm table 60 DEG C of 12 hours of heating to
With.In the active layer solution of first above-mentioned transparent conductive substrate spin coating 80~95nm thickness, obtains surface and be covered with active layer
Second transparent conductive substrate, and this substrate is placed under high vacuum environment 3h with dried active layer solution.
Using PEDOT:PSS (PH 1000) solution of sol evenning machine spin coating 100nm thickness on the second transparent conductive substrate, and
Moisture remaining on 50 DEG C of heating 60s evaporation substrates, obtains flexible translucent polymer solar battery on warm table.
(4) the Grazing condition translucent polymer solar battery preparation of flexible 1-D photon crystal regulation:
Using flexible full stress-strain 1-D photon crystal, using coining mode, and according to the absorption spectrum or reality of active layer
The suitable flexible 1-D photon crystal of border application selection, obtains the translucent polymerization of Grazing condition regulated and controled by flexible 1-D photon crystal
Object solar battery.
Different active layers can be replaced.Active layer can be active layer material based on polymer and fullerene, polymerization
The active layer and all-polymer active layer material of object and small molecule material.
Bifunctional layer polymer and electronics modification one polymer can be the electronics based on polymer and small molecule material and repair
One of decorations/transport interface material.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. the translucent no indium polymer solar battery of flexible 1-D photon crystal regulation, which is characterized in that successively by flexibility
1-D photon crystal (1), flexible PET substrate (2), bifunctional layer polymer P FN (3), Ag transparent cathode (4), electronics decorative layer
Polymer P FN (5), polymer active layers (6), conducting polymer PEDOT:PSS transparent anode (7) lamination layer structure composition.
2. polymer solar battery according to claim 1, which is characterized in that the thickness of bifunctional layer polymer P FN
For 40~50nm, Ag transparent cathode with a thickness of 8~15nm, electronics decorative layer polymer P FN with a thickness of 5~40nm, polymerization
Object active layer with a thickness of 80~300nm, conducting polymer PEDOT:PSS transparent anode with a thickness of 50~150nm.
3. polymer solar battery according to claim 1, which is characterized in that polymer solar battery preparation step
It is as follows:
1) flexibility PET is successively cleaned in supersonic cleaning machine with deionized water and isopropanol, be subsequently placed into drying box dry to
With；
2) PFN is dissolved using anhydrous methanol, and acetic anhydride is added in methanol solution, prepares PFN solution；In stand-by flexibility PET
Upper spin coating PFN functional layer；Then, the PET substrate for being covered with PFN to spin coating carries out ultraviolet/oxygen plasma treatment；
3) Ag is deposited under vacuum conditions；
4) the spin on polymers PFN electronics decorative layer on Ag electrode；
5) active layer solution is configured, PTB7:PCBM [70]: ICBA mixing is dissolved in the solvent C B:DIO:CN added with additive
In, and heat；Mixed solution is spin-coated on electron transfer layer PFN, obtains active layer, and dry in vacuum environment；
6) surfactant solution and dimethyl sulfoxide are added in PEDOT:PSS solution；And the spin coating conductive thin on active layer
Film, finally heating evaporation falls the remaining moisture of film surface on warm table；
7) in the PET substrate back side of the above composite construction, the polymer flexibility 1-D photon crystal for different high reflection wavestrips of arranging in pairs or groups.
4. polymer solar battery according to claim 3, which is characterized in that in step 2), be covered with to spin coating
The PET substrate of PFN carries out ultraviolet/oxygen plasma treatment that power is 300~500W.
5. polymer solar battery according to claim 1, which is characterized in that active layer can be based on polymer and
One of the active layer material of fullerene, the active layer of polymer and small molecule material and all-polymer active layer material.
6. polymer solar battery according to claim 1, which is characterized in that bifunctional layer polymer and electronics modification
One polymer can be one of electronics modification/transport interface material based on polymer and small molecule material.
7. polymer solar battery according to claim 1, which is characterized in that by the Ag electrode that different-thickness is deposited
It realizes and cathodic conductivity is regulated and controled.
8. polymer solar battery according to claim 1, which is characterized in that flexible 1-D photon crystal is using different
The polyester fiber and polymethyl methacrylate multilayer of refractive index are alternately formed by stacking, and structure is [polyester fiber/poly- methyl-prop
E pioic acid methyl ester]The number of plies, each thickness degree is the 1/4 of center reflection wavelength.
9. polymer solar battery according to claim 1, which is characterized in that taken according to different absorption spectrum active layers
With suitable flexible 1-D photon crystal；By periodically imprinting the polymer material of different refractivity, construct to different wave length
The flexible 1-D photon crystal of range high reflection；Alternately superposition imprints for polyester fiber and polymethyl methacrylate multilayer, with layer
Number adjustment different wavelength range high reflection, adjusts reflected waveband according to every thickness degree.
10. polymer solar battery according to claim 1, which is characterized in that polymer solar battery structure packet
Include flexible translucent polymer solar battery element and flexible polymer 1-D photon crystal element, flexible translucent polymer
Then solar cell device, which is directly prepared separately using flexible 1-D photon crystal as substrate or both, to be superimposed.
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| CN115132926A (en) * | 2022-08-25 | 2022-09-30 | 中国华能集团清洁能源技术研究院有限公司 | Hole transport layer and application thereof |
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