CN109980090A - A kind of efficient ternary organic photovoltaic cell and preparation method thereof - Google Patents

A kind of efficient ternary organic photovoltaic cell and preparation method thereof Download PDF

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CN109980090A
CN109980090A CN201910210933.6A CN201910210933A CN109980090A CN 109980090 A CN109980090 A CN 109980090A CN 201910210933 A CN201910210933 A CN 201910210933A CN 109980090 A CN109980090 A CN 109980090A
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organic photovoltaic
photovoltaic cell
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ternary organic
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何志才
陈虹竹
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South China University of Technology SCUT
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K30/00Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
    • H10K30/10Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising heterojunctions between organic semiconductors and inorganic semiconductors
    • H10K30/15Sensitised wide-bandgap semiconductor devices, e.g. dye-sensitised TiO2
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/10Deposition of organic active material
    • H10K71/12Deposition of organic active material using liquid deposition, e.g. spin coating
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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    • H10K85/111Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
    • H10K85/113Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/20Carbon compounds, e.g. carbon nanotubes or fullerenes
    • H10K85/211Fullerenes, e.g. C60
    • H10K85/215Fullerenes, e.g. C60 comprising substituents, e.g. PCBM
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/60Organic compounds having low molecular weight
    • H10K85/649Aromatic compounds comprising a hetero atom
    • H10K85/657Polycyclic condensed heteroaromatic hydrocarbons
    • H10K85/6576Polycyclic condensed heteroaromatic hydrocarbons comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene
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    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/549Organic PV cells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract

The invention discloses a kind of efficient ternary organic photovoltaic cells and preparation method thereof.The active layer of the organic photovoltaic cell is blended to obtain by donor material and acceptor material.Third component-fullerene acceptor is introduced in the active layer of the non-fullerene organic photovoltaic cell of binary, and the ternary organic photovoltaic cell containing non-fullerene and fullerene acceptor simultaneously has been prepared.The optical absorption spectra of device has not only been widened in the addition of fullerene acceptor, increases short-circuit current density, moreover it is possible to which effective modification activities layer pattern finally improves the photoelectric conversion efficiency of organic photovoltaic cell.In addition, the active layer of ternary organic photovoltaic cell of the invention can be processed at room temperature, solution can prepare film forming by way of spin coating, blade coating and silk-screen printing.Under conditions of not using any physics optimization method, that is, the efficiency of device can be improved, reduce the cost of manufacture of organic photovoltaic cell, be suitable for roll-to-roll production process.

Description

A kind of efficient ternary organic photovoltaic cell and preparation method thereof
Technical field
The present invention relates to the technical fields of organic electro-optic device, and in particular to a kind of efficient ternary organic photovoltaic cell and its Preparation method.
Background technique
The discovery of coal uses, and promotes the development of human industry, the use of petroleum gas allows human society to achieve Rapid development.With the arrival of industrial society, the mankind increasingly deepen the dependence of the energy, and still, the disposable energy is that the earth exists 1 years precious resources formed in evolutionary process are non-renewable, and the excessive use of these energy is all inevitable Ground can damage ecological environment.Therefore, extremely urgent to the exploitation of green energy resource and popularization.Solar energy takes it as one kind Not to the utmost, the nexhaustible energy obtains the concern and research of countries in the world scientist because of its preferable development and application prospect.
Solar cell experienced very long development process, according to the difference of material, can be divided into inorganic solar cell, You Jitai Positive electricity pond, quantum dot solar battery and dye-sensitized solar cells etc..Traditional inorganic solar cell has the production of scale, Though manufacture craft is simple, big to silicon materials consumption, cost of manufacture is high, and transfer efficiency has been approached theoretical boundary, into one It is limited to walk development space.In contrast, though the advantages of efficiency of organic photovoltaic cell is also far apart, and own is had: Such as light weight, cheap, flexible, solution processable all become the driving force of organic photovoltaic cell development.
It is thin to realize that the core of photoelectric conversion is blended by the binary that electron donor, acceptor material form in organic photovoltaic cell Film, but it is constrained to organic photovoltaic material " narrow absorption " characteristic, binary blend film is difficult to realize the wide spectrum benefit to solar energy With, and in the presence of blending (being conducive to exciton fission), this is to basic contradiction with mutually separation (being conducive to charge transmission) always, to limit The further breakthrough of organic photovoltaic devices efficiency is made.To solve the above problems, researcher has developed ternary battery technology, The characteristics of maintaining single battery preparation, process is simple.
For example, BJ University of Aeronautics & Astronautics's Sun Yan penetrating judgment is awarded et al. using ICBA as Co receptor, with PBT1-C and ITIC- 2Cl prepares ternary organic photovoltaic cell, realizes the optimization to binary system PBT1-C:ITIC-2Cl.20wt%ICBA's 13.4% energy conversion efficiency is obtained in ternary battery, short-circuit current density is by 18.03mA/cm2Increase to 19.30mA/ cm2, fill factor increases to 75.9% (Adv.Mater.2018,30,1803045) by 70.3%.For another example Beijing Jiaotong University Zhang Fujun professor et al. on the basis of PBT1-C:MeIC binary organic photovoltaic cell, be added a kind of with receptor MeIC structure Similar component MeIC2 not only improves the optical absorption of blended layer, also optimizes pattern as Co receptor, will imitate Rate improves 9.40%, and short-circuit current density is by 16.54mA/cm2Increase to 17.84mA/cm2, fill factor is by 73.6% optimization To 75.2% (Small 2018,14,1802983).The above example all demonstrates: three Meta-Policys are to improve organic sun electricity The effective ways of pond performance.
Currently, it although the spectral absorption range of the non-fullerene system of some binary may extend to 1000nm, realizes higher Short-circuit current density, but the absorption in short wavelength range is obviously very weak, the space still to make progress.And its fill factor is general All over not high, therefore we may be selected by suitable third component, such as fullerene acceptor, add it to non-fullerene diploid Ternary organic photovoltaic cell is prepared in system, further increases its optical absorption using the spectrum of two receptors complementation;The phase of two receptors Interaction is to improve its electric property.
Summary of the invention
The efficient ternary that the object of the present invention is to provide a kind of simultaneously containing fullerene acceptor and non-fullerene acceptor is organic too Positive electricity pond and preparation method thereof, in the case where open-circuit voltage is constant, it is possible to increase the short-circuit current density and fill factor of battery, Realize higher photoelectric conversion efficiency.
The purpose of the present invention is achieved through the following technical solutions.
A kind of efficient ternary organic photovoltaic cell, the battery include cathode, electron transfer layer, active layer, hole transport Layer and anode;Wherein, active layer is the film forming obtained after being blended by a kind of donor material, two kinds of acceptor materials.
Preferably, the donor material is that more preferably narrow band gap polymer, two acceptor materials are respectively optical characteristics It is the non-fullerene acceptor of D-A-D and fullerene acceptor of core skeleton based on the big condensed cyclic structure of rigidity.
It is further preferred that the donor material is PTB7-Th, the acceptor material is F8IC and PC71BM, chemical structure Formula is as follows:
Wherein, n < 300.
Preferably, the dosage of the fullerene acceptor is the 15wt%-75wt% of donor.
Preferably, the active layer with a thickness of 100nm-1 μm.
Preferably, the material of the electron transfer layer includes TiO2, at least one of LiF and ZnO.
Preferably, the material of the hole transmission layer includes PEDOT:PSS, MoO3、V2O5At least one of with NiO.
Preferably, the anode is at least one of Ag, Au and Cu.
A kind of preparation method of above-described efficient ternary organic photovoltaic cell, comprising the following steps:
(1) glass substrate of the ITO containing cathode is cleaned;
(2) one layer of electron transfer layer of spin coating in the cathode layer surface obtained by step (1), then carries out thermal anneal process;
(3) spin coating active layer solution on the electron transfer layer obtained by step (2);
(4) one layer of hole transmission layer is prepared on the active layer obtained by step (3);
(5) anode metal is deposited on the hole transmission layer obtained by step (4).
Preferably, the solvent in the active layer solution be chlorobenzene, chloroform, dichloro-benzenes and non-halogen solvent toluene in extremely Few one kind.
Preferably, the active layer needs not move through any processing after spin-coating film, and sol evenning machine spin-coating time is unified to be adjusted Whole is 40S.
Compared with prior art, the present invention has the advantage that
(1) ternary organic photovoltaic cell of the invention maintains the preparation method of unijunction organic photovoltaic cell, preparation process Simply, it is not necessarily to any optimization processing (such as additive, thermal annealing, solvent anneal).
(2) present invention in the active layer of the non-fullerene organic photovoltaic cell of binary introduce third component-fullerene by The ternary organic photovoltaic cell containing non-fullerene and fullerene acceptor simultaneously has been prepared in body.The addition of fullerene acceptor is not The optical absorption spectra for only having widened device, increases short-circuit current density, moreover it is possible to effective modification activities layer pattern, it is final to improve The photovoltaic energy conversion efficiency of organic photovoltaic cell.
(3) active layer of ternary organic photovoltaic cell of the invention can be processed at room temperature, solution can by spin coating, scrape It applies and the mode of silk-screen printing prepares film forming.Under conditions of not using any physics optimization method, that is, the effect of device can be improved Rate reduces the cost of manufacture of organic photovoltaic cell, is suitable for roll-to-roll production process, the commercialization to flexible device is realized With certain directive function.
Detailed description of the invention
Fig. 1 is PTB7-Th, F8IC and PC71The optical absorption spectra figure of BM.
Fig. 2 is ternary organic photovoltaic cell PTB7-Th:F8IC:PC71The EQE of BM tests spectrogram.
Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 3 d, Fig. 3 e, Fig. 3 f are ternary organic photovoltaic cell PTB7-Th:F8IC:PC71BM's AFM test chart.
Fig. 4 is ternary organic photovoltaic cell PTB7-Th:F8IC:PC71Electric current-electricity under AM1.5G illumination condition of BM Press (J-V) curve graph.
Fig. 5 is the structural schematic diagram of ternary organic photovoltaic cell of the present invention.
Fig. 6 is the energy conversion efficiency and addition PC of ternary organic photovoltaic cell of the present invention71The relational graph of BM mass fraction.
Specific embodiment
A specific embodiment of the invention is further described below in conjunction with example and attached drawing, but implementation of the invention Mode is without being limited thereto.
The structural schematic diagram of ternary organic photovoltaic cell of the invention is as shown in Figure 5.
Embodiment 1
It carves characters on the reverse side of the substrate containing ITO, convenient for the development of subsequent experimental.It then successively uses isopropanol, detergent, surpass Pure water, isopropanol ultrasonic cleaning have etched the substrate of ITO, and each step continues 15min, placed it in 70 DEG C of baking ovens after the completion Drying.Before experiment, piece is subjected to O2The processing of plasma, it is therefore an objective to the further cleaning to piece is completed, then ITO's One layer of electron transfer layer ZnO in the spin coating of surface, revolving speed 2500rpm, time 45s place it in 200 DEG C of warm tables after the completion Upper heating 1h, the final ZnO layer being made with a thickness of 40nm.Then piece is transferred in the glove box full of nitrogen, by PTB7- Th:F8IC=1:1.5 (mass ratio), to the blend solution (solvent is chlorobenzene) that bulk concentration is 10mg/mL with the revolving speed of 3000rpm The spin-coating film on ZnO obtains the blend film with a thickness of 100nm.It is 0.051cm that piece, which is finally placed in effective area,2Cover In film version, operate evaporator in the form of vacuum thermal evaporation respectively vapor deposition on a thickness of 10nm MoO3With the Ag electrode of 80nm (anode).
It is 100mW/cm that Fig. 4, which gives binary organic photovoltaic cell PTB7-Th:F8IC in intensity of illumination,2AM1.5G mould J-V curve graph under the conditions of quasi- sunlight irradiation.
Embodiment 2
It carves characters on the reverse side of the substrate containing ITO, convenient for the development of subsequent experimental.It then successively uses isopropanol, detergent, surpass Pure water, isopropanol ultrasonic cleaning have etched the substrate of ITO, and each step continues 15min, placed it in 70 DEG C of baking ovens after the completion Drying.Before experiment, piece is subjected to O2The processing of plasma, it is therefore an objective to the further cleaning to piece is completed, then ITO's One layer of electron transfer layer ZnO in the spin coating of surface, revolving speed 2500rpm, time 45s place it in 200 DEG C of warm tables after the completion Upper heating 1h, the final ZnO layer being made with a thickness of 40nm.Then piece is transferred in the glove box full of nitrogen, by PTB7- Th:F8IC:PC71BM=1:1.5:0.15 (mass ratio, 15wt%PC71BM), molten to the tertiary blending that bulk concentration is 10mg/mL Liquid (solvent is chlorobenzene) spin-coating film on ZnO with the revolving speed of 3000rpm, obtains the blend film with a thickness of 100nm.Finally by piece It is 0.051cm that son, which is placed in effective area,2Mask plate on, operate evaporator and upper thickness be deposited respectively in the form of vacuum thermal evaporation For the MoO of 10nm3With the Ag electrode (anode) of 80nm.
Fig. 4 gives ternary organic photovoltaic cell PTB7-Th:F8IC:PC71BM=1:1.5:0.30 is in intensity of illumination 100mW/cm2AM1.5G simulated solar irradiation irradiation condition under J-V curve.
Embodiment 3
It carves characters on the reverse side of the substrate containing ITO, convenient for the development of subsequent experimental.It then successively uses isopropanol, detergent, surpass Pure water, isopropanol ultrasonic cleaning have etched the substrate of ITO, and each step continues 15min, placed it in 70 DEG C of baking ovens after the completion Drying.Before experiment, piece is subjected to O2The processing of plasma, it is therefore an objective to the further cleaning to piece is completed, then ITO's One layer of electron transfer layer ZnO in the spin coating of surface, revolving speed 2500rpm, time 45s place it in 200 DEG C of warm tables after the completion Upper heating 1h, the final ZnO layer being made with a thickness of 40nm.Then piece is transferred in the glove box full of nitrogen, by PTB7- Th:F8IC:PC71BM=1:1.5:0.30 (mass ratio, 30wt%), the tertiary blending solution (solvent for being 10mg/mL to bulk concentration For chlorobenzene) with the revolving speed of 3300rpm on ZnO spin-coating film, obtain the blend film with a thickness of 100nm.Finally piece is placed in Effective area is 0.051cm2Mask plate on, operation evaporator be deposited respectively in the form of vacuum thermal evaporation with a thickness of 10nm MoO3With the Ag electrode (anode) of 80nm.
It is 100mW/cm in intensity of illumination2AM1.5G simulated solar illumination under, test the current-voltage (J-V) of device Performance measures 30wt%PC71The experimental data of BM ternary battery are as follows: open-circuit voltage 0.634V, short-circuit current density are 28.28mA/cm2, fill factor 69.23%, photovoltaic energy conversion efficiency is 12.41%.
Fig. 4 gives ternary organic photovoltaic cell PTB7-Th:F8IC:PC71BM=1:1.5:0.30 is in intensity of illumination 100mW/cm2AM1.5G simulated solar irradiation irradiation condition under J-V curve.
Embodiment 4
It carves characters on the reverse side of the substrate containing ITO, convenient for the development of subsequent experimental.It then successively uses isopropanol, detergent, surpass Pure water, isopropanol ultrasonic cleaning have etched the substrate of ITO, and each step continues 15min, placed it in 70 DEG C of baking ovens after the completion Drying.Before experiment, piece is subjected to O2The processing of plasma, it is therefore an objective to the further cleaning to piece is completed, then ITO's One layer of electron transfer layer ZnO in the spin coating of surface, revolving speed 2500rpm, time 45s place it in 200 DEG C of warm tables after the completion Upper heating 1h, the final ZnO layer being made with a thickness of 40nm.Then piece is transferred in the glove box full of nitrogen, by PTB7- Th:F8IC:PC71BM=1:1.5:0.45 (mass ratio, 45wt%PC71BM), molten to the tertiary blending that bulk concentration is 10mg/mL Liquid (solvent is chlorobenzene) spin-coating film on ZnO with the revolving speed of 3400rpm, obtains the blend film with a thickness of 100nm.Finally by piece It is 0.051cm that son, which is placed in effective area,2Mask plate on, operation evaporator thickness has been deposited respectively in the form of vacuum thermal evaporation For the MoO of 10nm3With the Ag electrode (anode) of 80nm.
Fig. 4 gives ternary organic photovoltaic cell PTB7-Th:F8IC:PC71BM=1:1.5:0.45 is in intensity of illumination 100mW/cm2AM1.5G simulated solar irradiation irradiation condition under J-V curve.
Embodiment 5
It carves characters on the reverse side of the substrate containing ITO, convenient for the development of subsequent experimental.It then successively uses isopropanol, detergent, surpass Pure water, isopropanol ultrasonic cleaning have etched the substrate of ITO, and each step continues 15min, placed it in 70 DEG C of baking ovens after the completion Drying.Before experiment, piece is subjected to O2The processing of plasma, it is therefore an objective to the further cleaning to piece is completed, then ITO's One layer of electron transfer layer ZnO in the spin coating of surface, revolving speed 2500rpm, time 45s place it in 200 DEG C of warm tables after the completion Upper heating 1h, the final ZnO layer being made with a thickness of 40nm.Then piece is transferred in the glove box full of nitrogen, by PTB7- Th:F8IC:PC71BM=1:1.5:0.75 (mass ratio, 75wt%PC71BM), molten to the tertiary blending that bulk concentration is 10mg/mL Liquid (solvent is chlorobenzene) spin-coating film on ZnO with the revolving speed of 3600rpm, obtains the blend film with a thickness of 100nm.Finally by piece It is 0.051cm that son, which is placed in effective area,2Mask plate on, operation evaporator thickness has been deposited respectively in the form of vacuum thermal evaporation For the MoO of 10nm3With the Ag electrode (anode) of 80nm.
It is 100mW/cm in intensity of illumination2AM1.5G simulated solar illumination under, test the current-voltage (J-V) of device Performance measures 75wt%PC71The experimental data of BM ternary battery are as follows: open-circuit voltage 0.639V, short-circuit current density are 28.44mA/cm2, fill factor 65.75%, photovoltaic energy conversion efficiency is 11.96%.
Fig. 4 gives ternary organic photovoltaic cell PTB7-Th:F8IC:PC71BM=1:1.5:0.75 is in intensity of illumination 100mW/cm2AM1.5G simulated solar irradiation irradiation condition under J-V curve.
Embodiment 6
It carves characters on the reverse side of the substrate containing ITO, convenient for the development of subsequent experimental.It then successively uses isopropanol, detergent, surpass Pure water, isopropanol ultrasonic cleaning have etched the substrate of ITO, and each step continues 15min, placed it in 70 DEG C of baking ovens after the completion Drying.Before experiment, piece is subjected to O2The processing of plasma, it is therefore an objective to the further cleaning to piece is completed, then ITO's One layer of electron transfer layer ZnO in the spin coating of surface, revolving speed 2500rpm, time 45s place it in 200 DEG C of warm tables after the completion Upper heating 1h, the final ZnO layer being made with a thickness of 40nm.Then piece is transferred in the glove box full of nitrogen, by PTB7- Th:F8IC:PC71BM=1:1.5:1.05 (mass ratio, 105wt%PC71BM), molten to the tertiary blending that bulk concentration is 10mg/mL Liquid (solvent is chlorobenzene) spin-coating film on ZnO with the revolving speed of 3700rpm, obtains the blend film with a thickness of 100nm.Finally by piece It is 0.051cm that son, which is placed in effective area,2Mask plate on, operation evaporator thickness has been deposited respectively in the form of vacuum thermal evaporation For the MoO of 10nm3With the Ag electrode (anode) of 80nm.
Fig. 4 gives ternary organic photovoltaic cell PTB7-Th:F8IC:PC71BM=1:1.5:1.05 is in intensity of illumination 100mW/cm2AM1.5G simulated solar irradiation irradiation condition under J-V curve.
The present invention is with PTB7-Th:F8IC:PC71For BM ternary system, ternary battery can be real under the action of third component Existing 12.41% energy conversion efficiency (PCE), optimizes 22.2% (see Fig. 6) on the basis of duel cell.Non- fullerene by Body F8IC has stronger absorption (see Fig. 1) in the range of 700-100nm, this is binary system PTB7-Th:F8IC with larger short The reason of road current density, but its absorption in short wavelength range is obviously insufficient.Fullerene acceptor PC71After BM is added, effectively Ground has widened PTB7-Th:F8IC binary and optical absorption of the film forming before 500nm is blended, and establishes for the raising of short-circuit current density Basis.In 30%wt%PC71Under conditions of BM, the short-circuit current density of the organic photovoltaic cell based on binary system by 25.18mA/cm2Increase to 28.28mA/cm2, the amplification of 3 units is realized, fill factor is also improved extremely by 63.86% 69.23%, PCE reaches maximum value at this time.By in external quantum efficiency (EQE) test chart (see Fig. 2) of ternary battery it can be seen that With PC71The continuous increase of BM content, photoresponse of three components on short wavelength significantly improve.F8IC is blended with PTB7-Th Roughness after film forming is larger, PC71The addition of BM not only without destroying the former structure to form a film, is also optimized into a certain extent Film pattern.It compares atomic force microscopy test chart (see Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 3 d, Fig. 3 e, Fig. 3 f), is gradually appeared in blend film Fibrous structure illustrate that ternary film forming has formed good continuous inierpeneirating network structure, this is mentioned for the transmission of carrier with fractionation Good channel has been supplied, the electric property based on PTB7-Th:F8IC binary system is hence improved.Ternary organic photovoltaic cell Open-circuit voltage maintain always in the range of 0.63-0.64V (see Fig. 4), illustrate PC71The addition of BM not will cause ternary electricity The loss of cell voltage.In addition, the active layer material can be not necessarily to heating in the organic solvent of room temperature, if sufficiently dissolved in chlorobenzene, And active layer solution can be prepared by way of spin coating, blade coating or silk-screen printing, this is to prepare flexible organic sun electricity The important prerequisite in pond is suitable for roll-to-roll production technology.
Each embodiment in this specification is described by the way of parallel, by third component PC in tertiary blending solution71BM Content press to weight 0wt%, 15wt%, 30wt%, 45wt%, 75wt% and 105wt% it is incremented by successively, about implementation Ternary organic photovoltaic cell be inverted structure.PC71The content of BM is optimal there are can get when an optimum value, i.e. 30wt% PCE value.The application applies specific case, and the principle and implementation of this application are described, the explanation of above embodiments It is merely used to help understand the present processes and its core concept.It is done within the spirit and principles of the present invention any Modifications, equivalent substitutions and improvements etc., should all be included in the scope of protection of the claims of the present invention.

Claims (10)

1. a kind of efficient ternary organic photovoltaic cell, which is characterized in that the battery include cathode, electron transfer layer, active layer, Hole transmission layer and anode;Wherein, active layer is the film forming obtained after being blended by a kind of donor material, two kinds of acceptor materials.
2. a kind of efficient ternary organic photovoltaic cell according to claim 1, which is characterized in that the donor material is Narrow band gap polymer, two acceptor materials be respectively based on the non-fullerene of D-A-D that the big condensed cyclic structure of rigidity is core skeleton by Body and fullerene acceptor.
3. a kind of efficient ternary organic photovoltaic cell according to claim 2, which is characterized in that the donor material is PTB7-Th, the acceptor material are F8IC and PC71BM, chemical structural formula are as follows:
Wherein, n < 300.
4. a kind of efficient ternary organic photovoltaic cell according to claim 2, which is characterized in that the fullerene acceptor Dosage is the 15wt%-75wt% of donor.
5. a kind of efficient ternary organic photovoltaic cell according to claim 1, which is characterized in that the thickness of the active layer It is 100nm-1 μm.
6. a kind of efficient ternary organic photovoltaic cell according to claim 1, which is characterized in that the electron transfer layer Material includes TiO2, at least one of LiF and ZnO.
7. a kind of efficient ternary organic photovoltaic cell according to claim 1, which is characterized in that the hole transmission layer Material includes PEDOT:PSS, MoO3、V2O5At least one of with NiO.
8. a kind of efficient ternary organic photovoltaic cell according to claim 1, which is characterized in that the anode is Ag, Au At least one of with Cu.
9. preparing a kind of described in any item methods of efficient ternary organic photovoltaic cell of claim 1-8, which is characterized in that packet Include following steps:
(1) glass substrate of the ITO containing cathode is cleaned;
(2) one layer of electron transfer layer of spin coating in the cathode layer surface obtained by step (1), then carries out thermal anneal process;
(3) spin coating active layer solution on the electron transfer layer obtained by step (2);
(4) one layer of hole transmission layer is prepared on the active layer obtained by step (3);
(5) anode metal is deposited on the hole transmission layer obtained by step (4).
10. preparation method according to claim 9, which is characterized in that the solvent in the active layer solution is chlorobenzene, chlorine At least one of imitative, dichloro-benzenes and non-halogen solvent toluene.
CN201910210933.6A 2019-03-20 2019-03-20 A kind of efficient ternary organic photovoltaic cell and preparation method thereof Pending CN109980090A (en)

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CN112259687A (en) * 2020-10-12 2021-01-22 常州大学 Ternary fullerene organic solar cell
CN112928213A (en) * 2021-02-05 2021-06-08 电子科技大学 Ultra-high-sensitivity near-infrared transistor photoelectric detector and preparation method thereof
CN113130763A (en) * 2021-03-23 2021-07-16 华南理工大学 Inverted organic solar cell with double hole transport layers deposited based on solution method and preparation method thereof
CN113224240A (en) * 2021-04-09 2021-08-06 华南理工大学 Semitransparent organic solar cell based on full narrow band gap system and preparation method thereof
CN115172593A (en) * 2022-06-10 2022-10-11 中国科学院福建物质结构研究所 Organic solar cell based on inorganic/organic double-layer composite hole transport material and preparation method and application thereof
KR20230038534A (en) 2020-07-17 2023-03-20 스미또모 가가꾸 가부시키가이샤 Photoelectric conversion element and manufacturing method thereof
KR20230039691A (en) 2020-07-17 2023-03-21 스미또모 가가꾸 가부시키가이샤 Photoelectric conversion element and manufacturing method thereof

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230038534A (en) 2020-07-17 2023-03-20 스미또모 가가꾸 가부시키가이샤 Photoelectric conversion element and manufacturing method thereof
KR20230039691A (en) 2020-07-17 2023-03-21 스미또모 가가꾸 가부시키가이샤 Photoelectric conversion element and manufacturing method thereof
CN112259687A (en) * 2020-10-12 2021-01-22 常州大学 Ternary fullerene organic solar cell
CN112928213A (en) * 2021-02-05 2021-06-08 电子科技大学 Ultra-high-sensitivity near-infrared transistor photoelectric detector and preparation method thereof
CN113130763A (en) * 2021-03-23 2021-07-16 华南理工大学 Inverted organic solar cell with double hole transport layers deposited based on solution method and preparation method thereof
CN113224240A (en) * 2021-04-09 2021-08-06 华南理工大学 Semitransparent organic solar cell based on full narrow band gap system and preparation method thereof
CN115172593A (en) * 2022-06-10 2022-10-11 中国科学院福建物质结构研究所 Organic solar cell based on inorganic/organic double-layer composite hole transport material and preparation method and application thereof

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Application publication date: 20190705