CN109786560A - Translucent organic solar batteries and its application based on photoactive layer and optics regulation layer synergistic effect - Google Patents
Translucent organic solar batteries and its application based on photoactive layer and optics regulation layer synergistic effect Download PDFInfo
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- CN109786560A CN109786560A CN201910037585.7A CN201910037585A CN109786560A CN 109786560 A CN109786560 A CN 109786560A CN 201910037585 A CN201910037585 A CN 201910037585A CN 109786560 A CN109786560 A CN 109786560A
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a kind of translucent organic solar batteries based on photoactive layer and optics regulation layer synergistic effect and its applications, it is a kind of to prepare that simple, cost is relatively low, natural Exponents are high and the higher translucent organic solar batteries of efficiency, wherein photoactive layer is formed using restriction material spin coating or blade coating mode, it can be improved the transmitance of visible light region, spectrum is leveled in specific wave-length coverage, improves battery efficiency and natural Exponents.In addition, optics regulation layer is formed using differing refraction indices material vapor deposition mode, the natural Exponents and incident photon-to-electron conversion efficiency of battery can be further increased.Also, this method is not only suitable for different photoactive layer system and preparation method, applies also for flexible battery system, meets the potential demand of the following wearable energy device, photovoltaic greenhouse, building integrated photovoltaic.
Description
Technical field
The present invention relates to a kind of solar batteries, and in particular to a kind of translucent high natural Exponents organic solar batteries and
Preparation method, more particularly to prepare translucent high natural Exponents organic too based on photoactive layer and optics regulation layer coordinating effect
The positive energy method of battery and its translucent high natural Exponents organic solar batteries of preparation.
Background technique
Currently, the knot of translucent organic solar batteries and transparent facility (such as construction window, vehicle glass, greenhouse roof)
Synthesize the new developing direction of photovoltaic power generation.Based on this purpose, translucent organic solar batteries should have preferable photoelectricity to turn
Change efficiency and keeps the good transparency and high natural Exponents simultaneously.Since the architectural characteristic of semi-permeable membrane organic solar batteries causes
The less opaque organic solar batteries of its incident photon-to-electron conversion efficiency are low.Currently used photoactive layer mostly has in visible light region very high
Absorption coefficient so as to cause transparency decline, influence actual use in for clarity demand.Meet to reduce color difference
The demand of realistic colour, using in boundary layer adulterate pigment, photoactive layer complementary absorption, adjust thickness of electrode, use optics
Regulate and control layer, but the incident photon-to-electron conversion efficiency of such high natural Exponents battery is low, is unable to satisfy actual use for the need of daily electricity consumption
It asks.
Summary of the invention
The purpose of the present invention is to provide a kind of translucent high natural Exponents organic solar batteries and preparation method thereof with
Using, using photoactive layer and optics regulation layer effectively improve solar battery the transparency, natural Exponents and photoelectricity turn
Change efficiency, and the battery has good semi-permeable rate under excellent photoelectric conversion efficiency, this method is not only applicable to difference
Photoactive layer system and preparation method, be also applied for flexible battery, and entire cell manufacturing process repeatability is high, operation side
Just.
The present invention adopts the following technical scheme:
It is a kind of based on photoactive layer and optics regulation layer synergistic effect translucent organic solar batteries, including substrate, electrode,
Functional layer, optics regulate and control layer；The functional layer is made of electron transfer layer, photoactive layer, hole transmission layer；The functional layer
The number of plies is 1~5 layer.The present invention is applicable not only to the translucent battery of single layer, and battery translucent for lamination is also significantly improved
1~5 one functional layer lamination, can be formed series-connected cell group by effect, obtained natural Exponents are high, photoelectric conversion efficiency also very
It is good, it solves the problems, such as the prior art for two layers and above series-connected cell does not have preferable regulating effect.
The invention discloses the above-mentioned translucent organic solar based on photoactive layer and optics regulation layer synergistic effect is electric
The preparation method in pond, comprising the following steps:
(1) cathode is prepared on a transparent substrate；
(2) electron transfer layer is prepared on cathode；
(3) photoactive layer is prepared on the electron transport layer；
(4) hole transmission layer is prepared on photoactive layer；
(5) transparent electrode is prepared on the hole transport layer；
(6) optics regulation layer is prepared on the transparent electrodes；
Obtain the translucent organic solar batteries based on photoactive layer and optics regulation layer synergistic effect；
Or
(1) anode is prepared on a transparent substrate；
(2) hole transmission layer is prepared on anode；
(3) photoactive layer is prepared on the hole transport layer；
(4) electron transfer layer is prepared on photoactive layer；
(5) transparent electrode is prepared on the electron transport layer；
(6) optics regulation layer is prepared on the transparent electrodes
Obtain the translucent organic solar batteries based on photoactive layer and optics regulation layer synergistic effect.
The invention also discloses a kind of translucent organic solar batteries functional layers, and the functional layer is by electron-transport
Layer, photoactive layer, hole transmission layer composition；The photoactive layer is mixed by middle band gap donor material with narrow band gap acceptor material
It arrives.
The invention discloses the preparation methods of above-mentioned translucent organic solar batteries functional layer, include the following steps,
Photoactive layer is prepared using the method for spin coating or blade coating on the electron transport layer, hole transport is then prepared on photoactive layer
Layer, obtains translucent organic solar batteries functional layer；Or it is made on the hole transport layer using the method for spin coating or blade coating
Standby photoactive layer film, electron transfer layer is then prepared on photoactive layer, obtains translucent organic solar batteries function
Layer.
The invention also discloses a kind of translucent organic solar batteries photoactive layers, and the photoactive layer is by middle band gap
Donor material is mixed to get with narrow band gap acceptor material.
The invention discloses the preparation methods of above-mentioned translucent organic solar batteries photoactive layer, including following step
Suddenly, the solution containing middle band gap donor material and narrow band gap acceptor material is formed a film using the method for spin coating or blade coating, obtains light
Active layer.
In the present invention, the photoactive layer is mixed to get by middle band gap donor material with narrow band gap acceptor material；Photolytic activity
Layer with a thickness of 50~1000 nm；Preferably, the light absorption wavelength range of middle band gap donor material is 500~900 nanometers, narrow
The light absorption wavelength range of band gap acceptor material is 700~1200 nanometers；Middle band gap donor material and narrow band gap acceptor material
Mass ratio be (0.1~3): (0.1~3), preferably (0.5~1.5): (0.5~1.5), further preferred 1: 1；Further preferably
, middle band gap donor material is by n kind material composition, n >=1；With the quality of middle band gap donor material for 100%, the matter of every kind of substance
Amount percentage is (50/n) %~(150/n) %, preferably (80/n) %~(120/n) %.Middle band gap donor material of the invention can be with
For a kind of substance, or more than one material mixings composition, narrow band gap acceptor material can be a kind of substance, or
More than one material mixings composition；For example photoactive layer is prepared by 2 middle band gap donor materials with 1 narrow band gap acceptor material
It arrives, 2 middle band gap donor material kinds, the mass percent of every kind of material is 25%~75%.
In the present invention, photoactive layer light absorption wavelength range 300-1500 nm；When preparing photoactive layer, annealing temperature is
It 0-200 DEG C, prepares in the solution of photoactive layer, solvent is aromatic solvents or halogen solvent；Prepare the solution of photoactive layer (i.e.
Solution containing middle band gap donor material and narrow band gap acceptor material) concentration be 5-40 mg/mL.
In the present invention, the optics regulation layer includes dielectric mirror, to reflect the incident light of specific wavelength；Or antireflection
Layer reduces the intensity of specific wavelength reflected light；Or plasma resonance layer, increase the incident intensity of specific wavelength；Steaming can be used
The mode of plating, spin coating and film transfer prepares optics regulation layer.
In the present invention, optics regulate and control layer with a thickness of 50~2000 nm, preferably 100-1800 nm；The substrate is glass
Substrate, quartz substrate, PET plastic substrate, PEN plastic-substrates, flexible mesh SERS substrate, one in flexible silver nanowires substrate
Kind；The electron transport layer materials are ZnO, TiO2、SnO2, PCBM, fullerene, one or more of fullerene derivate；Institute
It states hole transport layer material and is selected from poly- [bis- (4- phenyl) (2,4,6- trimethylphenyl) amine], poly- 3,4- ethene dioxythiophene/poly-
Styrene sulfonate, nickel oxide, copper oxide, 2,2', 7,7'- tetra- [N, N- bis- (4- methoxyphenyl) amino] -9,9'- spiral shell two
One of fluorenes, cuprous sulfocyanide, molybdenum oxide.
The invention discloses above-mentioned translucent organic solar batteries photoactive layer prepare it is above-mentioned based on photoactive layer
With the application in the translucent organic solar batteries of optics regulation layer synergistic effect.
The invention discloses the above-mentioned translucent organic solar based on photoactive layer and optics regulation layer synergistic effect is electric
Pond is preparing transparent external wall, greenhouse, the application in outdoor window.
In the present invention, the electrode of the translucent organic solar batteries based on photoactive layer and optics regulation layer synergistic effect
Including for cathode, transparent electrode or anode, transparent electrode；Wherein cathode is tin indium oxide or Fluorin doped stannic oxide；Sun
Extremely tin indium oxide or Fluorin doped stannic oxide；Transparent electrode be Au electrode, Ag electrode, Al electrode, Cu electrode, carbon electrode,
One or more of PH1000 polymer electrode, silver nanowires electrode, metal oxide electrode, preferably gold/silver-colored hybrid electrode.
The present invention prepares photoactive layer using the method for spin coating or blade coating, photoactive layer it is excellent with a thickness of 50-1000 nm
Select 80-200 nm；It prepares in the solution of photoactive layer, solvent is aromatic solvents or halogen solvent, preferably chlorobenzene, o-dichlorohenzene
Or chloroform；The solution concentration for preparing photoactive layer is 5-40 mg/mL, preferably 10-30 mg/mL, light absorption wavelength range 300-
1500 nm, preferred absorption region 300-1100 nm；Annealing temperature is 0-200oC, preferably 0-150 oC。
The present invention limits light active material and adjusts ratio, in electronics (hole) transport layer in a manner of spin coating or blade coating
Photoactive layer is prepared, optics regulation layer is prepared on the transparent electrodes and carries out spectrum adjusting, the translucent organic solar electricity of preparation
Pond possesses the higher transparency, high natural Exponents and higher incident photon-to-electron conversion efficiency.
It is saturating using the translucent organic solar batteries of photoactive layer absorption complementation and optics regulation layer preparation by the present invention
Bright property, natural Exponents and incident photon-to-electron conversion efficiency are greatly improved, and are wearable energy device, building photovoltaic integrated
Change and the potential application of greenhouse photovoltaic green-house provides important help.
It is of the present invention that based on photoactive layer and optics regulation layer synergistic effect, to prepare translucent high natural Exponents organic too
The available reversed solar battery of method or positive solar battery of positive energy battery.
The present invention can select the electro-conductive glass for plating indium oxide layer tin thin film, be commonly called as ITO, as battery cathode/
Anode；The SnO of doping fluorine can also be used2Electro-conductive glass is commonly called as FTO, as cathode/anode.
In the present invention, the translucent organic of layer synergistic effect is being regulated and controled based on photoactive layer and optics with reverse geometry
In solar battery, the electron transfer layer is ZnO, TiO2、SnO2Equal metal oxides or the multiplexing of transmission layer of metal oxidation,
One or more of the fullerenes such as PCBM, C60 and the electron transfer layer of fullerene derivate and organic inorganic hybridization use
The method of spin coating after annealing prepares electron transfer layer on cathode, and the speed of the spin coating is 800~5000 rpm, time 10
~90 s, with a thickness of 10~200 nm, the temperature of annealing is 50~300 DEG C, and the time is 10~90 min；The hole transport
Layer choosing poly- [bis- (4- phenyl) (2,4,6- trimethylphenyl) amine] etc. has the polymer of fluorine-triphenylamine structure, poly- 3,4- ethylene dioxy
The combination of the p-type semiconductors such as thiophene/poly styrene sulfonate and organic salt, in the metal oxides such as nickel oxide, molybdenum oxide
One kind preparing hole transmission layer using the method for spin coating or vapor deposition on photoactive layer, and the speed of the spin coating is 800~5000
Rpm, time are 10~60 s, and with a thickness of 10~200 nm, evaporation rate is 0.1/s~20/s.
In the present invention, the translucent organic of layer synergistic effect is being regulated and controled based on photoactive layer and optics with forward structure
In solar battery, described hole transport layer choosing poly- [bis- (4- phenyl) (2,4,6- trimethylphenyl) amine] etc. has triphenylamine knot
The polymer of structure, the combination of the p-type semiconductors and organic salt such as poly- 3,4-rthylene dioxythiophene/poly styrene sulfonate, oxidation
One of metal oxides such as nickel, molybdenum oxide prepare hole transmission layer using the method for spin coating or vapor deposition on photoactive layer,
The speed of the spin coating is 800~5000 rpm, and the time is 10~60 s, with a thickness of 10~200 nm, evaporation rate 0.1
/ s~20/s；The electron transfer layer is ZnO, TiO2、SnO2Equal metal oxides or the multiplexing of transmission layer of metal oxidation,
One or more of the fullerenes such as PCBM, C60 and the electron transfer layer of fullerene derivate and organic inorganic hybridization use
The method of spin coating after annealing prepares electron transfer layer on cathode, and the speed of the spin coating is 800~5000 rpm, time 10
~90 s, with a thickness of 10~200 nm, the temperature of annealing is 50~300 DEG C, and the time is 10~90 min.
In the present invention, transparent electricity is prepared in hole (or electronics) transport layer using the method for vapor deposition or film transfer
Pole；The transparent electrode with a thickness of 1~50 nm；The transparent electrode is that Au electrode, Ag electrode, Al electrode, Cu electrode are contour
One of the polymer electrodes such as conductive metal or clad metal electrode, carbon electrode, PH1000, metal oxide electrode；Using
The method of vapor deposition or film transfer prepares optics regulation layer on the transparent electrodes, and the optics regulation layer is with a thickness of 50-2000
nm。
Translucent organic solar batteries of the invention have the transparency it is good, natural Exponents are high, high-efficient, at low cost, square
Just the advantages of preparing, at the same translucent organic solar batteries have excellent resistance to bend(ing) energy, can roll-to-roll printing prepare,
The features such as frivolous, color colouring, becomes a kind of clean energy resource of new generation of great competitiveness, big in external wall, greenhouse
The fields such as canopy, window application prospect is extensive.
Translucent organic solar batteries disclosed by the invention are compared to traditional organic solar batteries, in natural Exponents
With the raising for having matter in terms of efficiency, translucent organic solar batteries do not have apparent color while maintaining demand transparency
Coloured silk can see the color reduction color difference of object script through battery, while prepared battery photoelectricity also with higher turns
Change efficiency, greatly meets the demand in daily life for electricity consumption and vision；Translucent solar cell is high simultaneously
The transparency and incident photon-to-electron conversion efficiency provide important help for the development of laminated cell, with dye-sensitized solar cells, calcium
Titanium ore battery, silion cell, copper indium gallium selenide cell combine, and can effectively improve the efficiency of laminated cell.
Beneficial effects of the present invention
1. Selection utilization photoactive layer of the present invention and optics regulation layer synergistic effect carry out control accurate spectrum, can possess simultaneously
High transparency, high natural Exponents and high incident photon-to-electron conversion efficiency.
2. the present invention is mixed with optically active layer by middle band gap donor material and narrow band gap acceptor material, may be implemented
The purpose of near infrared absorption, photoactive layer light absorption wavelength range 300-1500 nm, and have in terms of natural Exponents and efficiency
The raising of matter.
3. the method for the present invention have good universality, be applicable not only to different photoactive layer systems apply also for it is soft
Property battery.More importantly this method applies also for doctor blade technique, can still keep good optical characteristics；System of the present invention
The standby translucent organic solar batteries of functionality, can satisfy people for vision and its electricity consumption multiple demands, are expected to
Applied to construction window, the application range of clean energy resource is improved.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, it with presently preferred embodiments of the present invention and is described in detail with the accompanying drawings as follows below.
A specific embodiment of the invention is shown in detail by following embodiment and its attached drawing.
Detailed description of the invention
Fig. 1 is the transmission curve and film picture of the different photoactive layers of embodiment one；
Fig. 2 is for the transmission curve (left side) of the translucent battery of the different photoactive layers of embodiment one and plus the translucent of dielectric mirror
The transmission curve (right side) of battery；
Fig. 3 is the different photoactive layers of embodiment one and the photo plus the translucent battery shooting after dielectric mirror；
Fig. 4 is for the different photoactive layers of embodiment one and plus the translucent battery difference chromaticity coordinates position distribution after dielectric mirror
Chromaticity coordinates figure；
Fig. 5 be embodiment one use doctor blade technique prepare the picture that the translucent solar cell that photoactive layer obtains is shot with
And the application scenarios of simulation；
Fig. 6 is the different translucent solar cells of embodiment oneJ-VCurve graph；
Fig. 7 is the photo of the different translucent flexible solar batteries of embodiment two and shooting；
Fig. 8 is the different flexible solar batteries of embodiment twoJ-VCurve graph；
Fig. 9 is for the transmission curve (left side) of the translucent battery of the different photoactive layers of embodiment three and plus the translucent of dielectric mirror
The transmission curve (right side) of battery.
Specific embodiment
Below in conjunction with embodiment, the present invention will be described in detail:
Embodiment one
(1) glass rigid substrate is used, is polished, then plates indium oxide layer tin with the method for magnetron sputtering on glass
Film forms ITO electro-conductive glass, the anode as solar battery；
(2) the spin coating PEDOT:PSS solution on ITO electro-conductive glass, 5000 rpm, 40 s, then 150 DEG C of annealing in air
15 min obtain with a thickness of the hole transmission layer of 20 nm；
(3) ITO with hole transmission layer is placed in spin coating photoactive layer solution in nitrogen glove box, photoactive layer solution is three
First system solution, the light absorption wavelength range of middle band gap donor material are 500~900 nanometers, and the light of narrow band gap acceptor material is inhaled
Receiving wave-length coverage is 700~1200 nanometers, concrete component J71, PTB7-Th two middle band gap donor materials and IHIC narrow band gap
Acceptor material, mass ratio 0.4:0.6:1, the mixed solution that composition total concentration is 12 mg/mL, solvent are pure chloroform；It provides
Binary system compares, and the group of binary system solution is divided into J71 and IHIC or PTB7-Th and IHIC, and ratio is J71:IHIC=1:
1, total concentration is 12 mg/mL, and solvent is pure chloroformic solution, PTB7-Th:IHIC=1:1, and total concentration is 20 mg/mL, and solvent is
Pure chlorobenzene solution；All solution can be used as preparing photoactive layer solution after stirring six hours (contains middle band gap donor
The solution of material and narrow band gap acceptor material) it uses；The rate of spin coating is all 1500 rpm, and the time is 30 s；Base reservoir temperature is
30 DEG C, all photoactive layer film thickness are all 100 nm；Attached drawing 1 be different solutions system photoactive layer film H103 resin with
And its film color, as seen from the figure, ternary system can level spectrum in 600-780 nm wave-length coverage, improve it and refer to naturally
It counts, film color change also indicates that ternary system film color closer to natural colour, illustrates photoactive layer component in figure
Adjust the importance for improving battery natural Exponents；
The chemical structural formula of J71 are as follows:
The chemical structural formula of PTB7-Th are as follows:
The chemical structural formula of IHIC are as follows:
(4) spin coating PDINO as electron transfer layer, 3000 rpm of revolving speed, 30 s of time obtains thickness on photoactive layer film
For the electron transfer layer of 20 nm；
(5) device of the complete electron transfer layer of spin coating is placed in vapor deposition Au/Ag composite transparent electrode in coating machine, with a thickness of 0.8
nm/15 nm；
(6) three layers of MoO are deposited on the transparent electrodes3/ LiF(dielectric mirror) as optics regulation layer, MoO3With a thickness of 62 nm, LiF
With a thickness of 91 nm.
The translucent high natural Exponents organic solar batteries preparation based on different photoactive layer systems is completed as a result, and half
Transparent devices H103 resin is shown in that Fig. 2, translucent solar cell of the invention have the higher transparency while optics tune are added
Spectrum is greatly leveled after control layer, can be greatly reduced in contrast to two-spot system curve fluctuation, shows to regulate and control photoactive layer
Regulating and controlling layer with optics has important help for improving battery natural Exponents.
Attached drawing 3 regulates and controls the semi-transparent of layer for the translucent organic solar batteries based on different photoactive layers and without containing optics
The photo of bright organic solar batteries shooting.It can be seen that ternary system is than two-spot body when watching building through translucent battery
System clearer can find out the color of object script, and after optics regulation layer is further added, it can really reflect object
The color of body script, while ternary system combination optics regulation layer combines optics regulation layer to have outstanding face than two-spot system
Color reductibility.
Attached drawing 4 and table 1 are based on different photoactive layers and respectively plus color difference, chromaticity coordinates and the nature of optics regulation layer
The numerical value of index and the spectrogram of chromaticity coordinates.It follows that can effectively be mentioned by introducing third component in two-spot system
The natural Exponents of translucent battery are risen, while after being re-introduced into optics regulation layer, natural Exponents are up to 97, in close proximity to standard
Light source.Show that translucent battery does not have apparent color, the color of behind object script can be seen through battery.
The optical parameter of the different translucent organic solar batteries of table 1
Fig. 5 is the photoactive layer (remaining condition is as spin-coating method) prepared using doctor blade technique, translucent battery sample
Size is the cm of 10 cm × 10, and blade coating carries out in air, and the slit height of scraper is 40 mm, and blade coating speed is 25 mm/
s.As seen from the figure, the strategy based on ternary system and optics regulation layer regulation spectrum is also applied for different preparation methods, passes through
It is compared with simple glass, finds translucent battery color having the same, meet people for the demand of realistic colour, it was demonstrated that
Feasibilities of the translucent battery applications on window.
Fig. 6 and table 2 are the efficiency table and J-V curve graph using different photoactive layers and addition optics regulation layer.
It follows that the natural Exponents that battery not only can be improved in the translucent solar cell based on ternary system can also be further
Battery efficiency is improved, after optics regulation layer is added in it, can further improve battery performance；Finally obtain natural Exponents
9.37% translucent organic solar batteries are up to for 97 and efficiency.J71, PTB7-Th, IHIC mass ratio are 0.2:0.8:1
When, it is 8.32% that the photoelectric conversion efficiency of the translucent solar cell of preparation, which reduces, natural Exponents 89；In above-mentioned steps
(4) after the completion of, continue to repeat step (2)-step (4), then carry out step (5), step (6) again, available concatenated half
Transparent battery, photoelectric conversion efficiency 9.08%, natural Exponents 95.
The photovoltaic performance of the different translucent organic solar batteries of table 2
Embodiment two
(1) PET flexible substrates are used, the nano impression silver nanowires in uv-curable glue is polished, and being formed has patterning
The conductive substrates of silver nanowires, the anode as solar battery；
(2) the spin coating PEDOT:PSS solution in silver nanowires flexible substrates, 5000 rpm, 40 s, then in air 150 DEG C
Anneal 15 min, obtains with a thickness of the hole transmission layer of 20 nm；
(3) silver nanowires that spin coating has hole transmission layer is placed in spin coating photoactive layer solution, photoactive layer in nitrogen glove box
The group of solution is divided into PBDB-T, PTB7-Th and IHIC, mass ratio 0.6:0.4:1, and composition total concentration is the mixed of 20 mg/mL
Solution is closed, solvent is pure chlorobenzene；Matched solution can be used after stirring six hours；The speed of spin coating is all 1500 rpm, when
Between be 30 s, subsequent photoactive layer annealing 130oThe C time is 10 min, and gained photoactive layer film is 100 nm；
(4) the existing substance of spin coating PDINO(on obtained photoactive layer film) be used as electron transfer layer, 3000 rpm of revolving speed,
30 s of time, obtains with a thickness of the electron transfer layer of 20 nm；
(5) device of the complete electron transfer layer of spin coating is placed in vapor deposition Au/Ag composite transparent electrode in coating machine, with a thickness of 0.8
nm/15 nm；It is compared using 80nm silver electrode as opaque battery；
(6) three layers of MoO are deposited on the transparent electrodes3/ LiF regulates and controls layer, MoO as optics3With a thickness of 62 nm, LiF is with a thickness of 91
nm。
It is completed as a result, based on the preparation of ternary system flexible translucent organic solar batteries, Fig. 7 is to prepare different flexible half
The transmission curve of transparent organic solar batteries and the photo of shooting.As seen from the figure, layer is regulated and controled based on ternary system and optics
The method of synergic adjustment spectrum is also applied for flexible substrates, equally can greatly improve flexible translucent organic solar batteries
Natural Exponents.
Fig. 8 and table 3 be using different-thickness electrode and be added optics regulation layer efficiency table andJ-VCurve graph.By
This is shown and is greatly commercially answered it is found that the opaque organic solar batteries efficiency of flexibility based on this ternary system is more than 10%
With possibility, while this synergistic effect is also applied for flexible battery, and making it also has the high transparency, incident photon-to-electron conversion efficiency and height
Natural Exponents.
The photovoltaic performance of the different flexible translucent organic solar batteries of table 3
Embodiment three
(1) glass rigid substrate is used, is polished, then plates indium oxide layer tin with the method for magnetron sputtering on glass
Film forms ITO electro-conductive glass, the anode as solar battery；
(2) the spin coating PEDOT:PSS solution on ITO electro-conductive glass, 5000 rpm, 40 s, then 150 DEG C of annealing in air
15 min obtain with a thickness of the hole transmission layer of 20 nm；
(3) ITO with hole transmission layer is placed in spin coating photoactive layer solution in nitrogen glove box, photoactive layer solution is three
First system solution, the light absorption wavelength range of middle band gap donor material are 500~900 nanometers, and the light of narrow band gap acceptor material is inhaled
Receiving wave-length coverage is 700~1200 nanometers, and concrete component PBDB-T, PTB7-Th two middle band gap donor materials and IHIC are narrow
Band gap acceptor material, mass ratio 0.6:0.4:1, the mixed solution that composition total concentration is 20 mg/mL, solvent are pure chlorobenzene；
It provides binary system to compare, the group of binary system solution is divided into PBDB-T and IHIC or PTB7-Th and IHIC, and ratio is
PBDB-T:IHIC=1:1, total concentration are 20 mg/mL, and solvent is pure chlorobenzene solution, PTB7-Th:IHIC=1:1, total concentration 20
Mg/mL, solvent are pure chlorobenzene solution；All solution can be used as preparing photoactive layer solution after stirring six hours (contains
Have the solution of middle band gap donor material and narrow band gap acceptor material) it uses；The rate of spin coating is all 1500 rpm, time 30
s；Base reservoir temperature is 30 DEG C, and all photoactive layer film thickness are all 100 nm；By the transmission of different solutions system photoactive layer film
Curve and its film color diagram it is found that ternary system can level spectrum in 600-780 nm wave-length coverage, improve its from
Right index, ternary system film color illustrate photoactive layer composition regulation for improving battery certainly closer to natural colour
The importance of right index；When PBDB-T, PTB7-Th, IHIC mass ratio are 0.8:0.2:1, the translucent solar-electricity of preparation
The photoelectric conversion efficiency in pond reduces, and is 8.09%, natural Exponents 88；
The chemical structural formula of PBDB-T are as follows:
(4) spin coating PDINO as electron transfer layer, 3000 rpm of revolving speed, 30 s of time obtains thickness on photoactive layer film
For the electron transfer layer of 20 nm；
(5) device of the complete electron transfer layer of spin coating is placed in vapor deposition Au/Ag composite transparent electrode in coating machine, with a thickness of 0.8
nm/15 nm；
(6) three layers of MoO are deposited on the transparent electrodes3/ LiF(dielectric mirror) as optics regulation layer, MoO3With a thickness of 62 nm, LiF
With a thickness of 91 nm.
The translucent high natural Exponents organic solar batteries preparation based on different photoactive layer systems is completed as a result, light
Photoelectric transformation efficiency is 9.04%, natural Exponents 96；Translucent device H103 resin is shown in Fig. 9, translucent solar-electricity of the invention
There is the higher transparency in pond while greatly leveling spectrum after optics regulation layer is added, in contrast to two-spot system curve fluctuation
It can be greatly reduced, show that regulating and controlling photoactive layer and optics regulation layer has important side for improving battery natural Exponents
It helps.
In conclusion the present invention improves the transparent of battery using the synergistic effect of photoactive layer and optics regulation layer jointly
Property, natural Exponents and incident photon-to-electron conversion efficiency, the results showed that this method has good universality, and it is living to be not only applicable to different light
Property coating systems, apply also for different preparation methods, while being also applicable in flexible battery.Also, this method preparation
Translucent organic solar batteries, natural Exponents are up to 97, and incident photon-to-electron conversion efficiency is up to 9.37%, are to have high natural Exponents
The peak efficiency of translucent organic solar batteries.
Claims (10)
1. a kind of translucent organic solar batteries based on photoactive layer and optics regulation layer synergistic effect, which is characterized in that
The translucent organic solar batteries based on photoactive layer and optics regulation layer synergistic effect include substrate, electrode, function
Layer, optics regulate and control layer；The functional layer is made of electron transfer layer, photoactive layer, hole transmission layer；The number of plies of the functional layer
It is 1~5 layer.
2. the translucent organic solar electricity based on photoactive layer and optics regulation layer synergistic effect according to claim 1
Pond, which is characterized in that the photoactive layer is mixed to get by middle band gap donor material with narrow band gap acceptor material.
3. the translucent organic solar electricity based on photoactive layer and optics regulation layer synergistic effect according to claim 2
Pond, which is characterized in that the light abstraction width of the middle band gap donor material is 500~900 nanometers, the light of narrow band gap acceptor material
Absorption region is 700~1200 nanometers；The photoactive layer with a thickness of 50~1000 nm；Middle band gap donor material and narrowband
The mass ratio of gap acceptor material is (0.1~3): (0.1~3).
4. the translucent organic solar electricity based on photoactive layer and optics regulation layer synergistic effect according to claim 3
Pond, which is characterized in that middle band gap donor material is by n kind material composition, n >=1；With the quality of middle band gap donor material for 100%,
The mass percent of every kind of substance is (50/n) %~(150/n) %.
5. the translucent organic solar electricity based on photoactive layer and optics regulation layer synergistic effect according to claim 1
Pond, which is characterized in that the optics regulation layer includes dielectric mirror, anti-reflecting layer or plasma resonance layer；The optics tune
Control layer with a thickness of 50~2000 nm；The substrate be substrate of glass, quartz substrate, PET plastic substrate, PEN plastic-substrates,
One of flexible mesh SERS substrate, flexible silver nanowires substrate；The electron transport layer materials are ZnO, TiO2、SnO2、
One or more of PCBM, fullerene, fullerene derivate；The hole transport layer material be selected from it is poly- [bis- (4- phenyl) (2,
4,6- trimethylphenyl) amine], poly- 3,4- ethene dioxythiophene/poly styrene sulfonate, nickel oxide, copper oxide, 2,2', 7,7'-
One of four [N, N- bis- (4- methoxyphenyl) amino] -9,9'- spiral shells, two fluorenes, cuprous sulfocyanide, molybdenum oxide.
6. a kind of translucent organic solar batteries functional layer, which is characterized in that the functional layer is living by electron transfer layer, light
Property layer, hole transmission layer composition；The photoactive layer is mixed to get by middle band gap donor material with narrow band gap acceptor material.
7. translucent organic solar batteries functional layer according to claim 6, which is characterized in that the middle band gap donor
The light abstraction width of material is 500~900 nanometers, and the light abstraction width of narrow band gap acceptor material is 700~1200 nanometers；It is described
Photoactive layer with a thickness of 50~1000 nm；The mass ratio of middle band gap donor material and narrow band gap acceptor material is (0.1~3):
(0.1~3)；The electron transport layer materials are ZnO, TiO2、SnO2, PCBM, fullerene, one of fullerene derivate or
It is several；The hole transport layer material is selected from poly- [bis- (4- phenyl) (2,4,6- trimethylphenyl) amine], poly- 3,4- ethylene dioxy
Thiophene/poly styrene sulfonate, nickel oxide, copper oxide, 2,2', 7,7'- tetra- [N, N- bis- (4- methoxyphenyl) amino] -9,
One of two fluorenes of 9'- spiral shell, cuprous sulfocyanide, molybdenum oxide.
8. a kind of translucent organic solar batteries photoactive layer, which is characterized in that the photoactive layer is by middle band gap donor
Material is mixed to get with narrow band gap acceptor material；The light abstraction width of the middle band gap donor material is 500~900 nanometers, narrow
The light abstraction width of band gap acceptor material is 700~1200 nanometers；The photoactive layer with a thickness of 50~1000 nm；Middle band
The mass ratio of gap donor material and narrow band gap acceptor material is (0.1~3): (0.1~3).
9. translucent organic solar batteries photoactive layer described in claim 7 is being prepared described in claim 1 based on light work
Property layer and optics regulation layer synergistic effect translucent organic solar batteries in application.
10. the translucent organic solar batteries based on photoactive layer and optics regulation layer synergistic effect described in claim 1 exist
Prepare transparent external wall, greenhouse, the application in outdoor window.
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| CN111883672A (en) * | 2020-08-26 | 2020-11-03 | 中国科学院重庆绿色智能技术研究院 | Method for improving photoelectric efficiency of all-small-molecule organic solar cell by finely adjusting concentration of active layer raw solution |
| WO2020238108A1 (en) * | 2019-05-28 | 2020-12-03 | 华南理工大学 | Novel self-filtering narrowband organic photodetector |
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| CN108242506A (en) * | 2018-01-08 | 2018-07-03 | 吉林大学 | A kind of translucent polymer solar cell with silver/gold nanoparticle and photonic crystal and preparation method thereof |
| CN108659020A (en) * | 2018-05-07 | 2018-10-16 | 浙江大学 | The organic photovoltaic cell of narrow band gap electron acceptor material and its composition |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242506A (en) * | 2018-01-08 | 2018-07-03 | 吉林大学 | A kind of translucent polymer solar cell with silver/gold nanoparticle and photonic crystal and preparation method thereof |
| CN108659020A (en) * | 2018-05-07 | 2018-10-16 | 浙江大学 | The organic photovoltaic cell of narrow band gap electron acceptor material and its composition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020238108A1 (en) * | 2019-05-28 | 2020-12-03 | 华南理工大学 | Novel self-filtering narrowband organic photodetector |
| CN111883672A (en) * | 2020-08-26 | 2020-11-03 | 中国科学院重庆绿色智能技术研究院 | Method for improving photoelectric efficiency of all-small-molecule organic solar cell by finely adjusting concentration of active layer raw solution |
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