CN109935700A - Organic solar batteries and preparation method thereof comprising polyaminoacid electronics collecting layer - Google Patents
Organic solar batteries and preparation method thereof comprising polyaminoacid electronics collecting layer Download PDFInfo
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- CN109935700A CN109935700A CN201711377629.8A CN201711377629A CN109935700A CN 109935700 A CN109935700 A CN 109935700A CN 201711377629 A CN201711377629 A CN 201711377629A CN 109935700 A CN109935700 A CN 109935700A
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- 229920001308 poly(aminoacid) Polymers 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 35
- 239000000758 substrate Substances 0.000 claims description 19
- 239000002904 solvent Substances 0.000 claims description 12
- 238000004528 spin coating Methods 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 238000000137 annealing Methods 0.000 claims description 10
- 229920000144 PEDOT:PSS Polymers 0.000 claims description 9
- 150000001298 alcohols Chemical class 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000000637 aluminium metallisation Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000002203 pretreatment Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- 229960000583 acetic acid Drugs 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000012362 glacial acetic acid Substances 0.000 claims description 3
- 238000007738 vacuum evaporation Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 108010039918 Polylysine Proteins 0.000 claims description 2
- 238000002242 deionisation method Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 150000008282 halocarbons Chemical class 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 108010050934 polyleucine Proteins 0.000 claims description 2
- 229920000656 polylysine Polymers 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 47
- -1 4- hexyl phenyl Chemical group 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 125000005605 benzo group Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- QNXSIUBBGPHDDE-UHFFFAOYSA-N indan-1-one Chemical group C1=CC=C2C(=O)CCC2=C1 QNXSIUBBGPHDDE-UHFFFAOYSA-N 0.000 description 1
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- CUONGYYJJVDODC-UHFFFAOYSA-N malononitrile Chemical compound N#CCC#N CUONGYYJJVDODC-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- NQRYJNQNLNOLGT-UHFFFAOYSA-N tetrahydropyridine hydrochloride Natural products C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 1
- IZBPOIZFVYLFEP-UHFFFAOYSA-N thieno[2,3-c]thiophene-2-carboxylic acid Chemical compound S1C=C2SC(C(=O)O)=CC2=C1 IZBPOIZFVYLFEP-UHFFFAOYSA-N 0.000 description 1
- URMVZUQDPPDABD-UHFFFAOYSA-N thieno[2,3-f][1]benzothiole Chemical compound C1=C2SC=CC2=CC2=C1C=CS2 URMVZUQDPPDABD-UHFFFAOYSA-N 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- QERYCTSHXKAMIS-UHFFFAOYSA-M thiophene-2-carboxylate Chemical compound [O-]C(=O)C1=CC=CS1 QERYCTSHXKAMIS-UHFFFAOYSA-M 0.000 description 1
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
Abstract
The present invention relates to organic solar batteries technical fields, provide a kind of electronics collecting layer including polyaminoacid, the preparation method of solar battery and the solar battery comprising the electronics collecting layer.The present invention is reasonably screened by collecting layer material to electronics, careful optimization, has obtained a kind of function admirable, low in cost, avirulent polyaminoacid electronics collection layer material.Polyaminoacid electronics collecting layer is used in organic solar batteries, it can be achieved that its high incident photon-to-electron conversion efficiency.Moreover, the insertion of boundary layer efficiently avoids the electric leakage due to caused by defect and pin hole, significantly improves the fill factor of device.It is used as electronics collecting layer using polyaminoacid, avoids cumbersome synthesis and purification step, also, preparation method of the invention can be used for industrialized production.The present invention hits field critical issue, conducive to the industrialization development of organic solar batteries.
Description
Technical field
The present invention relates to organic solar batteries technical fields, and in particular to includes the organic of polyaminoacid electronics collecting layer
Solar battery and preparation method thereof.
Background technique
In order to cope with energy crisis, area of solar cell is quickly grown in recent years.Wherein organic solar batteries due to
Has many advantages, such as solution processable, printable preparation broad area device has received widespread attention.Constitute organic solar batteries
Each component has significant impact to its course of work.Due to having higher conductivity, metal material has been used as being prepared with
The reflective electrode of machine solar battery.Transparent electrode side, due to needing it in visible region transmitance and higher well
Conductivity, most widely used in field is doped tin indium oxide (ITO).However, if using both electrodes and this
Bulk heterojunction active layer directly prepares device, then will form biggish contact resistance at the contact interface of active layer and electrode,
Cause energy loss.Therefore, it is necessary to be inserted between active layer and electrode to the selective boundary material of different charges,
To facilitate positive and negative electrode to carry out the extraction of selectivity to different charges.Moreover, the insertion of boundary layer can be effectively prevented from
It is leaked electricity due to caused by defect and pin hole, significantly improves the fill factor of device.
The use of solar cell interface layer material must be adjusted according to the difference of active layer material.In addition, being
It avoids carrying out cumbersome synthesis and purification, needs to use the existing material of nature as interlayer materials as far as possible.Also,
In order to be applied in industrialized production, used layers of material needs to show hypotoxicity as far as possible.At this
Under a little prerequisites, how to improve the incident photon-to-electron conversion efficiency of organic solar batteries is highly important project.
Summary of the invention
In order to improve above-mentioned defect of the existing technology, the present invention provide a kind of preparation step is simple, raw material at
The electronics collecting layer preparation method that this is cheap, process controllability is strong, obtaining one kind has hypotoxicity, high efficiency, and what is easily prepared has
Machine solar battery electronics collecting layer, the electronics collecting layer can realize high incident photon-to-electron conversion efficiency in organic solar batteries.
To achieve the goals above, the present invention provides a kind of electronics collecting layer, the electronics collecting layer includes poly- amino
Acid.
According to the present invention, the electronics collecting layer can be solar battery electronics collecting layer, for example, organic solar
Battery electron collecting layer.
According to the present invention, the polyaminoacid can be or mixtures thereof polylysine, poly- leucine.
According to the present invention, the number-average molecular weight of the polyaminoacid can be 1-50 ten thousand, such as 10-40 ten thousand, for example 200,000；
Its molecular weight distribution is 1.5-3.0, for example, 2.0-2.5, such as 2.3.
Purposes the present invention also provides polyaminoacid as electronics collecting layer, such as the use of solar battery electronics collecting layer
On the way, such as the purposes of organic solar batteries electronics collecting layer.
According to the present invention, the polyaminoacid has definition described above.
The present invention also provides a kind of organic solar batteries, the solar battery includes electronics collecting layer as described above.
According to the present invention, the organic solar batteries further include aluminium electrode, active layer, PEDOT:PSS and conductive substrates
ITO。
According to the present invention, in the organic solar batteries, aluminium electrode, electronics collecting layer, active layer, PEDOT:PSS and
Conductive substrates ITO successively arranges.
According to the present invention, the aluminium electrode with a thickness of 50-150nm, for example, 80-120nm, such as 100nm.
According to the present invention, the active layer can be the combination of active layer donor material and active layer acceptor material, such as
For PTB7-Th:IEICO-4F；The thickness of the active layer can be 50-150nm, for example, 100-130nm, such as 120nm.
The present invention also provides the preparation methods of organic solar batteries as described above, the described method comprises the following steps:
S1. polyaminoacid solution is prepared；
S2. PEDOT:PSS is spin-coated on conductive substrates ITO；
S3. active layer is prepared；
S4. the step S3 active layer prepared is spun on the PEDOT:PSS being prepared in step S2, and is moved back
Fire；
S5. the polyaminoacid solution that step S1 is obtained is spun on the active layer for the sample that step S4 is obtained；
S6. sample step S5 obtained carries out AM aluminum metallization.
According to the present invention, in step S1,
The polyaminoacid has definition described above；
The polyaminoacid solution can be that the solution formed in alcohols solvent, concentration 0.1- are dissolved in by polyaminoacid
1.0mg/mL, for example, 0.3-0.7mg/mL, such as 0.5mg/mL；
Optionally, glacial acetic acid is also contained in the polyaminoacid solution, dosage and the volume ratio of the alcohols solvent are
0.0005-0.005:1, such as 0.0025:1；
The polyaminoacid solution is preferably stirred in atmosphere of inert gases using preceding, such as stirs 3- under nitrogen environment
5 hours；
According to the present invention, in step S2,
Pre-treatment can be carried out to conductive substrates ITO before the spin coating, the pre-treatment step includes: by conductive substrates
ITO uses water (such as deionization), ketones solvent (such as acetone), alcohols solvent (such as isopropanol) ultrasonic cleaning, and washing finishes postposition
It is stand-by in alcohols solvent；
The pre-treatment further includes that the conductive substrates ITO that will be cleaned is handled using UV ozone；
Further include annealing after the completion of the spin coating, such as the material after spin coating is made annealing treatment in 100-200 DEG C, such as
It is made annealing treatment 15 minutes at 165 DEG C；
According to the present invention, in step S3,
The preparation method of the active layer is that active layer donor material and acceptor material are dissolved in halogenated hydrocarbon solvent (such as
Chlorobenzene) in heat treatment；
The active layer donor material is selected from organic solar batteries donor material, such as poly- [4,8- bis- (5- (2- ethyls
Hexyl) thiophene -2- base) benzo [1,2-b:4,5-b '] Dithiophene -co- 3- fluorine thieno [3,4-b] thiophene-2-carboxylic acid ester]
(poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b’]dithiophene-
Co-3-fl uorothieno [3,4-b] thiophene-2-carboxylate], i.e. PTB7-Th)；The active layer receptor material
Material is selected from organic solar batteries acceptor material, such as 2,2'- ((2Z, 2'Z)-(((4,4,9,9- tetra- (4- hexyl phenyl) -4,
9- dihydro-s- indacene [1,2-b:5,6-b'] Dithiophene -2,7- diyl) two (4- ((2- ethylhexyl) oxygroup) thiophene -5,2-
Diyl)) two (methyl-Pie Shu yls)) two (fluoro- two subunits of 3- oxo -2,3- dihydro -1H- indenes -2,1- of 5,6- bis-)) two malononitrile
(2,2'-((2Z,2'Z)-(((4,4,9,9-tetrakis(4-hexylphenyl)-4,9-dihydro-s-
indaceno[1,2-b:5,6-b']dithiophene-2,7-diyl)bis(4-((2-ethylhexyl)oxy)
thiophene-5,2-diyl))bis(methanylyli dene))bis(5,6-difluoro-3-oxo-2,3-dihydro-
1H-indene-2,1-diylidene)) dimalononitrile, i.e. IEICO-4F)；The active layer donor material and activity
The mass ratio of layer acceptor material is (0.5-2.0): 1.5, such as 1:1.5；
The temperature of the heating is 30-100 DEG C, such as 60 DEG C；
According to the present invention, in step S4,
The angular speed of the spin coating can be 200-1800 revs/min, such as 1000 revs/min；
The spin coating can carry out in atmosphere of inert gases, such as carry out in nitrogen environment；
The temperature of the annealing can be 100-200 DEG C, such as 160 DEG C；
According to the present invention, in step S5,
The angular speed of the spin coating can be 1000-7000 revs/min, such as 4000 revs/min；
According to the present invention, in step S6,
The AM aluminum metallization can carry out in vacuum evaporation storehouse.
The utility model has the advantages that
1) present invention is reasonably screened by collecting layer material to electronics, and careful optimization has obtained a kind of performance
Excellent, low in cost, avirulent polyaminoacid electronics collects layer material.
2) polyaminoacid electronics collecting layer is used in organic solar batteries, it can be achieved that its high photoelectric conversion effect
Biggish contact resistance not will form at rate, such as the contact interface of its active layer and electrode (such as when without using polyaminoacid
The series resistance of device is 145.69 Ω, the use of devices in series resistance when polyaminoacid is 21.43 Ω), and cause energy loss.
Moreover, the insertion of boundary layer efficiently avoids the electric leakage due to caused by defect and pin hole, significantly improves device
Fill factor (such as without using devices in series resistance when polyaminoacid be 53.47%, use devices in series resistance when polyaminoacid
For 62.81%).
3) it is used as electronics collecting layer using polyaminoacid, avoids cumbersome synthesis and purification step, also, the present invention
Preparation method can be used for industrialized production.The present invention hits field critical issue, conducive to the industry of organic solar batteries
Change development.
Detailed description of the invention
Fig. 1 is the schematic diagram of 1 gained organic solar batteries device architecture of embodiment.
Fig. 2 is the VA characteristic curve figure of organic solar batteries in embodiment 2.
Specific embodiment
Further detailed description is done to technical solution of the present invention below in conjunction with specific embodiment.It should be appreciated that
The following example is merely illustrative the ground description and interpretation present invention, and is not necessarily to be construed as limiting the scope of the invention.
In the range of all technologies realized based on above content of the present invention are encompassed by the present invention is directed to protect.
Unless otherwise indicated, raw materials and reagents used in the following embodiment are commercial goods, or can be by
Perception method preparation.
Embodiment 1
(1) polyaminoacid powder 0.5mg, anhydrous methanol 1ml, 2.5 μ L of glacial acetic acid are mixed, magnetic agitation 3h is to get poly-
Amino acid solution；
(2) active layer donor material PTB7-Th 1mg is mixed with active layer acceptor material IEICO-4F1.5mg, and added
Enter chlorobenzene 0.1mL, is heated to 60 degrees Celsius, magnetic agitation 3h is to get active layer solution；
(3) electrically conducting transparent substrate I TO is successively used into deionized water, acetone, isopropanol is cleaned by ultrasonic 10 minutes, is placed in isopropyl
It is stand-by in alcohol；
(4) clean electrically conducting transparent substrate I TO UV ozone is handled 15 minutes, and with PEDOT:PSS solution with
4000 revs/min of speed is spun on the surface ITO, then carries out 165 degrees Celsius of annealing in 15 minutes and obtains substrate；
(5) the resulting substrate of step (4) is cooling, it is transferred in the glove box full of nitrogen, uses acquired solution in (2)
It is spun on substrate surface with 1000 revs/min of angular speed, and carries out 160 degrees Celsius of annealing in 10 minutes；
(6) acquired solution in (1) is spun on to the surface of gained substrate in (5) with 4000 revs/min of angular speed；
(7) gained substrate in (6) is placed in vacuum evaporation storehouse, AM aluminum metallization obtains organic solar batteries.It is described organic
In solar battery, the thickness of aluminium is detected as 100nm.
The structural schematic diagram of the organic solar batteries is as shown in Figure 1.
Embodiment 2
The resulting organic solar batteries of embodiment 1 are subjected to VA characteristic curve test.Test result such as Fig. 2 and table 1
It is shown.
Table 1: the photovoltaic performance of organic solar batteries
By data in table 1 it is found that using polyaminoacid that can show higher short circuit as the device of electronics collecting layer
Electric current and fill factor, and then show higher photovoltaic efficiency.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (10)
1. a kind of electronics collecting layer including polyaminoacid.
2. electronics collecting layer described in claim 1, wherein the electronics collecting layer can collect for solar battery electronics
Layer, for example, organic solar batteries electronics collecting layer；
The polyaminoacid can be or mixtures thereof polylysine, poly- leucine；
Preferably, the number-average molecular weight of the polyaminoacid is 1-50 ten thousand, such as 10-40 ten thousand, for example 200,000；Its molecular weight distribution
For 1.5-3.0, for example, 2.0-2.5, such as 2.3.
3. purposes of the polyaminoacid as electronics collecting layer, such as the purposes of solar battery electronics collecting layer, such as organic sun
The purposes of energy battery electron collecting layer；
The polyaminoacid has to be defined described in claim 2.
4. a kind of organic solar batteries comprising electronics collecting layer of any of claims 1 or 2.
5. organic solar batteries as claimed in claim 4, wherein further include aluminium electrode, active layer, PEDOT:PSS and conduction
Substrate I TO；
Preferably, in the organic solar batteries, aluminium electrode, electronics collecting layer, active layer, PEDOT:PSS and conductive substrates
ITO successively arranges；
Preferably, the aluminium electrode with a thickness of 50-150nm, for example, 80-120nm, such as 100nm；
Preferably, combination of the active layer for active layer donor material and active layer acceptor material, for example, PTB7-Th:
IEICO-4F；
Preferably, the active layer with a thickness of 50-150nm, for example, 100-130nm, such as 120nm.
6. the preparation method of organic solar batteries described in claim 4 or 5, comprising the following steps:
S1. polyaminoacid solution is prepared；
S2. PEDOT:PSS is spin-coated on conductive substrates ITO；
S3. active layer is prepared；
S4. the step S3 active layer prepared is spun on the PEDOT:PSS being prepared in step S2, and annealed；
S5. the polyaminoacid solution that step S1 is obtained is spun on the active layer for the sample that step S4 is obtained；
S6. sample step S5 obtained carries out AM aluminum metallization.
7. preparation method as claimed in claim 6, in step S1, the polyaminoacid has to be defined described in claim 2；
Preferably, the polyaminoacid solution is that the solution formed in alcohols solvent, concentration 0.1- are dissolved in by polyaminoacid
1.0mg/mL, for example, 0.3-0.7mg/mL, such as 0.5mg/mL；
Optionally, glacial acetic acid is also contained in the polyaminoacid solution, dosage and the volume ratio of the alcohols solvent are
0.0005-0.005:1, such as 0.0025:1；
Preferably, the polyaminoacid solution is stirred in atmosphere of inert gases using preceding, such as stirs 3-5 under nitrogen environment
Hour.
8. preparation method described in claim 6 or 7, in step S2, place before being carried out to conductive substrates ITO before the spin coating
Reason, the pre-treatment step include: that conductive substrates ITO is used water (such as deionization), ketones solvent (such as acetone), alcohols solvent
(such as isopropanol) ultrasonic cleaning, washing, which finishes, to be placed in alcohols solvent for use；
Preferably, the pre-treatment further includes that the conductive substrates ITO that will be cleaned is handled using UV ozone；
It preferably, further include annealing after the completion of the spin coating, such as by the material after spin coating at 100-200 DEG C of annealing
Reason such as makes annealing treatment 15 minutes at 165 DEG C.
9. the described in any item preparation methods of claim 6-8, in step S3, the preparation method of the active layer is by active layer
Donor material and acceptor material are dissolved in heat treatment in halogenated hydrocarbon solvent (such as chlorobenzene)；
Preferably, the active layer donor material is selected from organic solar batteries donor material, such as PTB7-Th；The activity
Layer acceptor material is selected from organic solar batteries acceptor material, such as IEICO-4F；The active layer donor material and active layer
The mass ratio of acceptor material is (0.5-2.0): 1.5, such as 1:1.5；
The temperature of the heating is 30-100 DEG C, such as 60 DEG C.
10. the described in any item preparation methods of claim 6-9, in step S4, the angular speed of the spin coating can be 200-
1800 revs/min, such as 1000 revs/min；
In step S4, described be spin-coated in atmosphere of inert gases is carried out, such as carries out in nitrogen environment；
In step S4, the temperature of the annealing can be 100-200 DEG C, such as 160 DEG C；
Preferably, in step S5, the angular speed of the spin coating is 1000-7000 revs/min, such as 4000 revs/min；
Preferably, in step S6, the AM aluminum metallization carries out in vacuum evaporation storehouse.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420932A (en) * | 2020-11-19 | 2021-02-26 | 山东大学 | Organic photovoltaic device suitable for photoelectric conversion in indoor thermal light source illumination environment and preparation method thereof |
| WO2021153470A1 (en) * | 2020-01-31 | 2021-08-05 | ソニーグループ株式会社 | Photoelectric conversion element and imaging element |
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