CN117015247A - Organic solar cell active layer and preparation method and application thereof - Google Patents
Organic solar cell active layer and preparation method and application thereof Download PDFInfo
- Publication number
- CN117015247A CN117015247A CN202311023244.7A CN202311023244A CN117015247A CN 117015247 A CN117015247 A CN 117015247A CN 202311023244 A CN202311023244 A CN 202311023244A CN 117015247 A CN117015247 A CN 117015247A
- Authority
- CN
- China
- Prior art keywords
- solar cell
- organic solar
- active layer
- layer
- donor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000000654 additive Substances 0.000 claims abstract description 33
- 230000000996 additive effect Effects 0.000 claims abstract description 32
- YLQWCDOCJODRMT-UHFFFAOYSA-N fluoren-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C2=C1 YLQWCDOCJODRMT-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000007787 solid Substances 0.000 claims abstract description 29
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 45
- 238000012986 modification Methods 0.000 claims description 21
- 230000004048 modification Effects 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000004528 spin coating Methods 0.000 claims description 7
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 150000003384 small molecules Chemical class 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000009825 accumulation Methods 0.000 abstract description 2
- 238000004220 aggregation Methods 0.000 abstract description 2
- 230000002776 aggregation Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000031700 light absorption Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 13
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000000137 annealing Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 229910003472 fullerene Inorganic materials 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 229920000144 PEDOT:PSS Polymers 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 239000003599 detergent Substances 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- JTPNRXUCIXHOKM-UHFFFAOYSA-N 1-chloronaphthalene Chemical compound C1=CC=C2C(Cl)=CC=CC2=C1 JTPNRXUCIXHOKM-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- KZDTZHQLABJVLE-UHFFFAOYSA-N 1,8-diiodooctane Chemical compound ICCCCCCCCI KZDTZHQLABJVLE-UHFFFAOYSA-N 0.000 description 1
- -1 9, 9-bis (3' - (N, N-dimethylamino) propyl) fluorenyl-2, 7-diyl Chemical group 0.000 description 1
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 1
- 241000270288 Gekko Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- HTBSGBIWKJSAGD-UHFFFAOYSA-N n,n-dimethylpropan-1-amine oxide Chemical compound CCC[N+](C)(C)[O-] HTBSGBIWKJSAGD-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 229920000172 poly(styrenesulfonic acid) Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004832 voltammetry Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/451—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising a metal-semiconductor-metal [m-s-m] structure
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/50—Photovoltaic [PV] devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
- H10K85/113—Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
- H10K85/113—Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
- H10K85/1135—Polyethylene dioxythiophene [PEDOT]; Derivatives thereof
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
- H10K85/115—Polyfluorene; Derivatives thereof
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Photovoltaic Devices (AREA)
Abstract
The application belongs to the field of organic solar cells, and particularly relates to an organic solar cell active layer, a preparation method and application thereof. The application specifically relates to an organic solar cell active layer, which adopts 9-fluorenone as a solid additive to regulate and control the morphology of an active layer blend film, improves aggregation and accumulation of donor and acceptor molecules, enhances the crystallinity of the donor and acceptor molecules, improves the carrier mobility, enhances the light absorption capacity of a photoactive layer and optimizes the morphology of the photoactive layer. The application can obviously improve the energy conversion efficiency of the organic solar cell device.
Description
Technical Field
The application belongs to the field of organic solar cells, and particularly relates to an organic solar cell active layer, a preparation method and application thereof.
Background
The demand for energy by humans increases year by year, and the development and application of new green energy has become a major concern. Among them, solar energy becomes an important component of renewable energy because of its inexhaustible, clean, pollution-free, wide distribution characteristics. Organic solar cells are widely regarded as a potential new generation photovoltaic technology in the light, solution processable, and preparable flexible and semitransparent devices. As an important component of an organic solar cell, the photoactive layer is a key place for achieving photoelectric conversion, and achieving a blend film morphology with suitable phase separation and phase region dimensions is important for achieving a high performance organic solar cell. The addition of high boiling point liquid additives such as diphenyl ether (DPE), 1, 8-Diiodooctane (DIO), 1-Chloronaphthalene (CN) and the like is one of the methods for regulating the morphology of an active layer commonly used at present, and the method can effectively optimize the morphology of the active layer so as to improve the photovoltaic performance of an organic solar cell. However, the liquid additive is liable to remain in the active layer due to the high boiling point, which is disadvantageous in device stability and reproducibility. In addition, non-fullerene receptors have planar conjugated structures, so that the stacking structure of such receptor molecules has a close relationship with the photoelectric properties of the material. Therefore, in optimizing the morphology of the active layer of a solar cell based on non-fullerene receptors, it is also important to optimize the molecular stacking structure of the active layer in addition to the phase separation, the size and purity of the phase regions, and the like. At present, most of methods for optimizing the morphology of non-fullerene organic solar cells are methods applied to fullerene cells, and the advantages and disadvantages of the methods are retained, but the morphology regulation method for the high-efficiency organic solar cell active layer based on Y6 non-fullerene receptor is rarely reported in literature. Therefore, based on the unique structure and stacking mode of the Y6 receptor, the exploration of a novel morphology regulation method capable of meeting the characteristics of the Y6 non-fullerene-like receptor is of great significance to the development of organic solar cells.
Disclosure of Invention
In order to solve the defects of the prior art, the application adopts the solid additive 9-Fluorenone (FNO) as the solid additive to regulate the morphology of the active layer blend film, improves aggregation and accumulation of acceptor molecules, enhances the crystallinity of the acceptor molecules, improves the charge transmission characteristic, enhances the light absorption capacity of the active layer, optimizes the morphology of the acceptor molecules, and effectively improves the current (Jsc) and the Filling Factor (FF) of the device so as to obviously improve the performance of the organic solar cell device.
In order to solve the technical problems, the application provides the following technical scheme:
the application provides an organic solar cell active layer, which comprises a donor material, an acceptor material and a solid additive; the solid additive is 9-fluorenone, and the molecular structural formula is as follows:
preferably, the donor material is at least one of a small molecule donor and a polymeric donor material.
Further, the donor material is PM6, CAS number is 1802013-83-7, and the donor material is purchased from Beijing limited of plastic organic phototechnology and has the following general formula:
preferably, the acceptor material is at least one of a small molecule acceptor and a polymer acceptor material.
Further, the acceptor material is selected from Y6, L8-BO or BTP-eC9, and has the following general formula:
the Y6, CAS number 2304444-49-1, is available from Beijing, inc. of Geotex organic phototechnology.
The L8-BO, CAS number 2668341-40-8, was purchased from the market.
The BTP-eC9, CAS number 2598965-39-8, was purchased from the market.
Preferably, the thickness of the organic solar cell active layer is 85-200nm.
The application also provides a preparation method of the organic solar cell active layer, which comprises the following steps:
s1: dissolving a solid additive, a donor material and a acceptor material in an organic solvent to form a blend solution; the mass ratio of the solid additive to the donor material to the acceptor material is 1:0.6:0.7-0.74;
s2: and spin-coating the blending solution on the surface of the anode modification layer to form the organic solar cell active layer.
Specifically, the preparation method of the organic solar cell active layer comprises the following steps:
s11: dissolving a donor material, an acceptor material and 9-fluorenone in chloroform serving as an organic solvent to form a blending solution;
s12: heating and stirring the blending solution at 40 ℃ to dissolve for about 4 hours;
s13: and (3) throwing the blending solution obtained in the step (S12) on the anode modification layer, and then annealing at the temperature of 100 ℃ for 10min to obtain the 9-fluorenone-regulated organic solar cell active layer.
The application also provides an organic solar cell, which comprises a conductive substrate layer, an anode modification layer, an active layer, an electron transport layer and a metal cathode layer which are sequentially arranged; the active layer adopts the organic solar cell active layer.
Preferably, the material of the conductive substrate layer is Indium Tin Oxide (ITO); the anode modification layer is made of PEDOT PSS with the thickness of 25-35nm; the electron transport layer is made of PNDIT-F3N, PDINO, PFN-Br or PDINN, and the thickness is 8-12nm; the metal cathode layer is made of Ag or Al, and the thickness of the metal cathode layer is 90-110nm.
Specifically, the thickness of the anode modification layer is 30nm; the thickness of the electron transport layer is 10nm; the thickness of the metal cathode layer is 100nm.
The PEDOT is PSS, the CAS number is 155090-83-8, the Chinese name is poly (3, 4-ethylenedioxythiophene) -poly (styrenesulfonic acid), and the PEDOT is purchased from Beijing Co., ltd;
the PNDIT-F3N has a CAS number of 2169941-79-9 and the general formula is as follows:
the PDINO has the Chinese name of 3,3' - (1,3,8,10-tetraanthrone [2,1,9-def:6,5,10 ]d'e'f']Diisoquinoline-2, 9 (1H, 3H,8H, 10H) -diyl) bis (N, N-dimethylpropane-1-amine oxide), formula C 34 H 32 N 4 O 6 CAS number 1558023-86-1, available from Beijing, inc. of organic phototechnology, gekko.
The PFN-Br, chinese name poly [ (9, 9-bis (3' - (N, N-dimethylamino) propyl) fluorenyl-2, 7-diyl) -ALT- [ (9, 9-di-N-octylfluorenyl 2, 7-diyl) -bromine, CAS number 889672-99-5, available from Dongguan voltammetry, inc.
The PDINN, english name N, N' -Bis {3- [3- (dimethyl lamino) propyl ] propyl } perylene-3,4,9,10-tetracarboxylic diimide, CAS number 1020180-01-1, is purchased from Beijing Co., ltd.
The application also provides a preparation method of the organic solar cell, which comprises the following steps: and an anode modification layer, an active layer, an electron transport layer and a metal cathode layer are sequentially formed on the surface of the conductive substrate layer.
Specifically, the preparation method of the organic solar cell comprises the following steps:
(1) Ultrasonically cleaning an ITO conductive substrate layer, blowing off a solvent attached to the surface by using a nitrogen gun, putting the solvent into an oven for drying, and performing ultraviolet ozone plasma surface treatment for about 20min;
(2) Spin-coating PEDOT PSS (rotation speed 5000rpm, time 40 s) on the surface of the ITO conductive layer treated in the step (1), and then annealing at 150 ℃ for 15min to form an anode modification layer with the thickness of about 30nm;
(3) Dissolving both the p-type semiconductor donor material and the n-type semiconductor acceptor material and 9-fluorenone in chloroform, which is an organic solvent, to form a blend solution, and dissolving the blend solution at 40 ℃ with stirring for about 4 hours;
(4) Spin-coating the blend solution obtained in the step (3) on the anode modification layer to obtain the active layer;
(5) Dropping and throwing an electron transport layer solution on the surface of the active layer;
(6) Evaporating a metal electrode on the surface of the electron transport layer to obtain the organic solar cell containing the active layer regulated and controlled by the solid additive 9-fluorenone.
Compared with the prior art, the technical scheme of the application has the following advantages:
1. according to the application, 9-fluorenone is used as a solid additive to optimize the morphology of the organic solar cell active layer blend film, so that the carrier mobility is obviously improved, and the short-circuit current and the filling factor can be simultaneously improved, thereby obviously improving the photovoltaic performance of an organic solar cell device;
2. according to the application, 9-fluorenone is used as a solid additive, and PCE (photovoltaic cell efficiency) of the prepared organic solar cell device containing the 9-fluorenone regulated active layer is remarkably improved. The method comprises the following steps:
for the PM6:Y6 system, the PCE of the cell was increased from 15.19% (control no additive treated device) to 17.23% (9-fluorenone optimized device).
Drawings
Fig. 1 is a schematic structural diagram of a solar cell according to an embodiment of the application.
Fig. 2 is a graph showing current density versus voltage for the solar cell of example 1 of the present application.
Reference numerals illustrate: 1-metal cathode layer, 2-electron transport layer, 3-active layer, 4-anode modification layer, 5-ITO conductive base layer.
Detailed Description
The present application will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the application and practice it.
In the preparation of the active layer selection system, the donor material is not limited to PM6 and the acceptor material is not limited to Y6.
Example 1
An organic solar cell active layer regulated by 9-fluorenone comprises a donor material PM6, an acceptor material Y6 and a solid additive FNO. The structural formulas of the donor material PM6 and the acceptor material Y6 are as follows:
the preparation method comprises the following steps:
s1: sequentially ultrasonically cleaning an ITO conductive substrate layer by using detergent water, deionized water, acetone and ethanol for 20min, blowing off a solvent attached to the surface by using a nitrogen gun, drying in an oven at 80 ℃, and performing ultraviolet ozone plasma surface treatment for about 20min;
s2: spin-coating PEDOT: PSS (5000 rpm/40S) on the surface of the ITO conductive layer treated by the S1, and then annealing at 150 ℃ for 15min to form an anode modification layer with the thickness of about 30nm;
s3: PM6 is taken as a donor, Y6 is taken as an acceptor, FNO is taken as a solid additive, the solid additive is dissolved in chloroform (the total concentration is about 16 mg/mL) serving as an organic solvent according to the mass ratio (relative to PM 6) of 1:1.2:0.6, so as to form a blending solution, and the blending solution is stirred and dissolved for about 4 hours at the temperature of 40 ℃;
s4: and (3) dripping the blending solution obtained in the step (S3) on the anode modification layer at a rotating speed of about 3000rpm, and then annealing at the temperature of 100 ℃ for 10min to obtain the organic solar cell active layer regulated and controlled by 9-fluorenone.
S5: dropping PFN-Br solution (2500 rpm/30 s) on the surface of the active layer;
s6: and evaporating a silver electrode (with the thickness of 100 nm) on the surface of the electron transport layer to obtain the organic solar cell device shown in the figure 1, wherein the organic solar cell device comprises an organic solar cell active layer regulated and controlled by a solid additive 9-fluorenone.
In simulating a solar light intensity (AM 1.5G,100mW cm -2 ) The photovoltaic performance of the resulting device was tested under standard test conditions and the test results are shown in table 1. (effective area of device is 0.056 cm) 2 )
TABLE 1 photovoltaic Properties of PM6:Y6 active layer based organic solar devices
Example 2
An organic solar cell active layer regulated by 9-fluorenone comprises a donor material PM6, an acceptor material L8-BO and a solid additive FNO. The structural formula of the donor material PM6 and the acceptor material BTP-L8-BO is as follows:
the preparation method comprises the following steps:
s1: sequentially ultrasonically cleaning an ITO conductive substrate layer by using detergent water, deionized water, acetone and ethanol for 20min, blowing off a solvent attached to the surface by using a nitrogen gun, drying in an oven at 80 ℃, and performing ultraviolet ozone plasma surface treatment for about 20min;
s2: spin-coating PEDOT: PSS (5000 rpm/40S) on the surface of the ITO conductive layer treated by the S1, and then annealing at 150 ℃ for 15min to form an anode modification layer with the thickness of about 30nm;
s3: PM6 is taken as a donor, L8-BO is taken as an acceptor, FNO is taken as a solid additive, the solid additive is dissolved in chloroform (the total concentration is about 16 mg/mL) according to the mass ratio (relative to PM 6) of 1:1.2:0.6, a blending solution is formed, and the blending solution is stirred and dissolved for about 4 hours at the temperature of 40 ℃;
s4: and (3) dripping the blending solution obtained in the step (S3) on the anode modification layer, and then annealing at the temperature of 100 ℃ for 10min to obtain the organic solar cell active layer (the thickness is about 100 nm) regulated and controlled by 9-fluorenone.
S5: dropping PFN-Br solution (2500 rpm/30 s) on the surface of the active layer;
s6: and evaporating a silver electrode (with the thickness of 100 nm) on the surface of the electron transport layer to obtain the organic solar cell device shown in the figure 1, wherein the organic solar cell device comprises an organic solar cell active layer regulated and controlled by a solid additive 9-fluorenone.
In simulating a solar light intensity (AM 1.5G,100mW cm -2 ) The photovoltaic performance of the resulting devices was tested under standard test conditions and the test results are shown in table 2. (effective area of device is 0.056 cm) 2 )
TABLE 2 photovoltaic Properties of PM6:L8-BO active layer based organic solar devices
Example 3
An organic solar cell active layer regulated by 9-fluorenone comprises a donor material PM6, an acceptor material BTP-eC9 and a solid additive FNO. The structural formula of the donor material PM6 and the acceptor material BTP-eC9 is as follows:
the preparation method comprises the following steps:
s1: sequentially ultrasonically cleaning an ITO conductive substrate layer by using detergent water, deionized water, acetone and ethanol for 20min, blowing off a solvent attached to the surface by using a nitrogen gun, drying in an oven at 80 ℃, and performing ultraviolet ozone plasma surface treatment for about 20min;
s2: spin-coating PEDOT: PSS (5000 rpm/40S) on the surface of the ITO conductive layer treated by the S1, and then annealing at 150 ℃ for 15min to form an anode modification layer with the thickness of about 30nm;
s3: PM6 is taken as a donor, BTP-eC9 is taken as an acceptor, FNO is taken as a solid additive, the solid additive is dissolved in chloroform (total concentration is about 16 mg/mL) serving as an organic solvent according to the mass ratio (relative to PM 6) of 1:1.2:0.6 to form a blending solution, and the blending solution is stirred and dissolved for about 4 hours at 50 ℃;
s4: and (3) dripping the blending solution obtained in the step (S3) on the anode modification layer, and then annealing at the temperature of 100 ℃ for 10min to obtain the organic solar cell active layer (the thickness is about 100 nm) regulated and controlled by 9-fluorenone.
S5: dropping PFN-Br solution (2500 rpm/30 s) on the surface of the active layer;
s6: and evaporating a silver electrode (with the thickness of 100 nm) on the surface of the electron transport layer to obtain the organic solar cell device shown in the figure 1, wherein the organic solar cell device comprises an organic solar cell active layer regulated and controlled by a solid additive 9-fluorenone.
In simulating a solar light intensity (AM 1.5G,100mW cm -2 ) Under standard test conditions, testing the resulting deviceVolt-age performance, test results are shown in table 3. (effective area of device is 0.056 cm) 2 )
TABLE 3 photovoltaic Properties of organic solar devices based on PM6 BTP-eC9 active layers
Evaluation of Effect
FIG. 2 is a graph of voltage-current test of PM 6:Y6-based organic solar devices without additive treatment versus FNO as solid additive treatment, showing a significant improvement in device performance after solid additive FNO optimization.
From the results of example 1, it can be seen that adding an appropriate amount of 9-fluorenone (60% of the donor mass) to the PM6:y6 blend can significantly increase the short circuit current and fill factor, and eventually the PCE increases from 15.19% to 17.23%, revealing the great potential of 9-fluorenone as a solid additive in improving the performance of organic solar cell devices.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present application will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present application.
Claims (10)
1. An organic solar cell active layer, characterized in that the active layer comprises a donor material, an acceptor material and a solid additive; the solid additive is 9-fluorenone.
2. The active layer of an organic solar cell of claim 1, wherein the donor material is at least one of a small molecule donor and a polymeric donor material.
3. The active layer of an organic solar cell of claim 2, wherein the donor material is PM6 having the general formula:
4. the organic solar cell active layer of claim 1, wherein the acceptor material is at least one of a small molecule acceptor and a polymer acceptor material.
5. The organic solar cell active layer of claim 4, wherein the acceptor material is selected from Y6, L8-BO, or BTP-eC9, having the formula:
6. the organic solar cell active layer of claim 1, wherein the thickness of the organic solar cell active layer is 85-200nm.
7. A method for preparing an active layer of an organic solar cell according to any one of claims 1 to 6, comprising the steps of:
s1: dissolving a solid additive, a donor material and a acceptor material in an organic solvent to form a blend solution; the mass ratio of the solid additive to the donor material to the acceptor material is 1:0.6:0.7-0.74;
s2: and spin-coating the blending solution on the surface of the anode modification layer to form the organic solar cell active layer.
8. An organic solar cell is characterized by comprising a conductive substrate layer, an anode modification layer, an active layer, an electron transport layer and a metal cathode layer which are sequentially arranged; the active layer employs the organic solar cell active layer of any one of claims 1-6.
9. The organic solar cell according to claim 8, wherein the conductive substrate layer is made of indium tin oxide; the anode modification layer is made of PEDOT PSS with the thickness of 25-35nm; the electron transport layer is made of PNDIT-F3N, PDINO, PFN-Br or PDINN, and the thickness is 8-12nm; the metal cathode layer is made of Ag or Al, and the thickness of the metal cathode layer is 90-110nm.
10. A method of manufacturing an organic solar cell according to claim 8 or 9, comprising the steps of: and an anode modification layer, an active layer, an electron transport layer and a metal cathode layer are sequentially formed on the surface of the conductive substrate layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311023244.7A CN117015247A (en) | 2023-08-15 | 2023-08-15 | Organic solar cell active layer and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311023244.7A CN117015247A (en) | 2023-08-15 | 2023-08-15 | Organic solar cell active layer and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117015247A true CN117015247A (en) | 2023-11-07 |
Family
ID=88572549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311023244.7A Pending CN117015247A (en) | 2023-08-15 | 2023-08-15 | Organic solar cell active layer and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117015247A (en) |
-
2023
- 2023-08-15 CN CN202311023244.7A patent/CN117015247A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4951497B2 (en) | Organic thin film solar cell and method for producing the same | |
| CN110752298B (en) | Organic solar cell active layer based on hydroxypyrimidine derivative additive and preparation method thereof | |
| CN108598265B (en) | preparation method of active layer of organic solar cell | |
| Cheng et al. | Coplanar phenanthro [9, 10-d] imidazole based hole-transporting material enabling over 19%/21% efficiency in inverted/regular perovskite solar cells | |
| CN103236501B (en) | The organic cavity transmission layer of doping metal halogenide, its preparation method and application | |
| CN111081883B (en) | Efficient and stable planar heterojunction perovskite solar cell and preparation method | |
| CN112018242A (en) | Perovskite solar cell and preparation method thereof | |
| Wang et al. | Annealing-and doping-free hole transport material for pin perovskite solar cells with efficiency achieving over 21% | |
| CN113363279A (en) | High-efficiency interconnection layer and double-junction perovskite/organic tandem solar cell thereof | |
| CN112802967B (en) | Organic solar cell active layer based on N-phenylalkylamide derivative additive and preparation method thereof | |
| Wang et al. | Enhanced Power Conversion Efficiency of P3HT: PC71BM Bulk Heterojunction Polymer Solar Cells by Doping a High‐Mobility Small Organic Molecule | |
| Doyranli et al. | Triphenylamine-based organic small-molecule interlayer materials for inverted perovskite solar cells | |
| Zhang et al. | Heteroatom Engineering of a Dibenzo [g, p] Chrysene‐Based Hole Transporting Material Provides High‐Performance Perovskite Solar Cells | |
| Xie et al. | Dual‐Strategy Tailoring Molecular Structures of Dopant‐Free Hole Transport Materials for Efficient and Stable Perovskite Solar Cells | |
| US20050236035A1 (en) | High-performance and low-cost plastic solar cells | |
| JP2015532524A (en) | Polymer solar cell and manufacturing method thereof | |
| Zhang et al. | DDQ as an effective p-type dopant for the hole-transport material X1 and its application in stable solid-state dye-sensitized solar cells | |
| CN116801647A (en) | Organic solar cell and preparation method thereof | |
| Dridi et al. | Inverted PTB7: PC70BM bulk heterojunction solar cell device simulations for various inorganic hole transport materials | |
| CN113594369B (en) | Boron Lewis acid doped organic solar cell active layer and preparation method and application thereof | |
| CN117015247A (en) | Organic solar cell active layer and preparation method and application thereof | |
| CN112794861B (en) | End group local asymmetric small molecule receptor material and application thereof in full small molecule organic solar cell | |
| Zhu et al. | Ionic liquid dopant for hole transporting layer towards efficient LiTFSI-free perovskite solar cells | |
| CN115172593A (en) | Organic solar cell based on inorganic/organic double-layer composite hole transport material and preparation method and application thereof | |
| CN114824101A (en) | Star-molecule-based ternary organic solar cell and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |