CN108794504B - Multi-fused ring conjugated macromolecule and preparation method and application thereof - Google Patents

Multi-fused ring conjugated macromolecule and preparation method and application thereof Download PDF

Info

Publication number
CN108794504B
CN108794504B CN201710286150.7A CN201710286150A CN108794504B CN 108794504 B CN108794504 B CN 108794504B CN 201710286150 A CN201710286150 A CN 201710286150A CN 108794504 B CN108794504 B CN 108794504B
Authority
CN
China
Prior art keywords
formula
group
fused ring
independently selected
ring conjugated
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.)
Active
Application number
CN201710286150.7A
Other languages
Chinese (zh)
Other versions
CN108794504A (en
Inventor
占肖卫
王嘉宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peking University
Original Assignee
Peking University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Peking University filed Critical Peking University
Priority to CN201710286150.7A priority Critical patent/CN108794504B/en
Publication of CN108794504A publication Critical patent/CN108794504A/en
Application granted granted Critical
Publication of CN108794504B publication Critical patent/CN108794504B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D495/00Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
    • C07D495/22Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains four or more hetero rings
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/33Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10Testing of PV devices, e.g. of PV modules or single PV cells
    • H02S50/15Testing of PV devices, e.g. of PV modules or single PV cells using optical means, e.g. using electroluminescence
    • 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
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/549Organic PV cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention relates to the field of organic and perovskite solar cells and photodetectors, in particular to a multi-fused ring conjugated macromolecule and a preparation method and application thereof. The poly-fused ring conjugated macromolecule is a compound shown in the following formula (1). The poly-fused ring conjugated macromolecule provided by the invention has stronger light absorption, higher charge transmission performance and proper electronic energy level, and is suitable for being used as a photovoltaic material or a light detection material to be applied to the preparation of a solar cell or a light detector.
Figure DDA0001280723160000011

Description

Poly-fused ring conjugated macromolecule and preparation method and application thereof
Technical Field
The invention relates to the field of organic and perovskite solar cells and photodetectors, in particular to a poly-fused ring conjugated macromolecule and a preparation method and application thereof.
Background
In recent years, organic solar cells have been rapidly developed, and have received much attention from academia and industry due to their advantages of light weight, good flexibility, simple processing method, large-area preparation, and low cost. Perovskite solar cells have received great attention in academia and industry in recent years due to the rapid increase in efficiency. Organic photodetectors as a new type of photodetector are also an important direction of organic electronics research. At present, the photoelectric conversion efficiency of organic solar cells prepared based on blending of polymer donors and fullerene receptors has broken through by 11%. This shows a great application prospect for organic solar cells. The polymer material has higher molar extinction coefficient and wider solar spectrum absorption, so that the photoelectric conversion efficiency of the photovoltaic device is higher. However, polymers also have deficiencies such as: uncertain molecular structure, polydispersity molecular weight distribution, difficult batch repeatability, difficult purification and the like. Different from polymers, organic condensed ring micromolecules and macromolecular semiconductor materials have the advantages of determined molecular structures and molecular weights, stable batches, simplicity in purification, high purity and the like, so that the research of organic condensed ring micromolecules and macromolecular solar cells tends to be hot.
Due to the advantages of sufficient electron affinity, isotropic electron transmission performance, relatively matched electron energy level and the like of the fullerene derivative (PC), the fullerene derivative 61 BM and PC 71 BM) has been the dominant star molecule in the receptor material. However, PCBM also has many disadvantages, such as weak visible light absorption, difficult energy level regulation, complicated purification process, etc. The novel organic multi-fused ring macromolecules have strong visible region absorption characteristics, are particularly suitable for organic solar cells and photodetectors as photovoltaic materials, and can also be used as doping components of a modification layer, an electron transmission layer or a light capture layer of the perovskite solar cell because the energy level of the novel organic multi-fused ring macromolecules is easy to regulate and control. Therefore, the synthesis of novel receptor materials is still necessary.
Disclosure of Invention
The invention aims to provide a novel multi-fused ring conjugated macromolecule which can be used for a solar cell as an electron donor or electron acceptor material and has stronger light absorption, higher charge transmission performance and proper electron energy level, and a preparation method and application thereof.
In order to achieve the above object, an aspect of the present invention provides a multiple-fused ring conjugated macromolecule, which is a compound represented by the following formula (1), and which is not a compound represented by the following formula (GK):
formula (1)
Figure BDA0001280723140000021
Formula (GK)
Figure BDA0001280723140000022
Wherein the two groups a are each independently selected from the following structures:
Figure BDA0001280723140000023
each group B independently represents 1-10 thiophene conjugated condensed ring structures or 1-10 furan conjugated condensed ring structures;
each R is 1 And R 2 Each independently selected from the group consisting of
Figure BDA0001280723140000024
A group shown; each R is 3 Are each independently selected from the group consisting of>
Figure BDA0001280723140000025
A group shown;
each Z is independently selected from C, N, si and Ge;
each X, each X', and each Y is independently selected from O, S or Se;
m is an integer of 0 to 6; n is an integer of 0 to 6; p is an integer of 0 to 6;
each R is 4 -R 10 Each independently selected from H, halogen, C1-C30 alkyl, C1-C30 alkoxy, C1-C30 alkylthio and C6-C30 aryl.
In a second aspect, the present invention provides a method for preparing the above-mentioned polycyclic conjugated macromolecule, which comprises:
subjecting a compound represented by the following formula (2) and a compound represented by the formula (a) to a dehydration condensation reaction in the presence of a basic compound and in an organic solvent to obtain a compound represented by the formula (1); wherein,
formula (2)
Figure BDA0001280723140000031
Formula (a) is selected from one or more of the following compounds:
Figure BDA0001280723140000032
in a third aspect, the present invention provides a photovoltaic material or a photodetection material containing one or more of the above-mentioned multiple-fused ring conjugated macromolecules.
In a fourth aspect, the invention provides a solar cell in which the photovoltaic material contains the above-described polycyclic and fused ring conjugated macromolecule.
The fifth aspect of the present invention provides a method for manufacturing the above solar cell, including: disposing the multiple fused ring conjugated macromolecules in a layer comprising a photovoltaic material.
In a sixth aspect, the present invention provides a photodetector comprising a light trapping active layer, wherein an electron donor material and/or an electron acceptor material in the light trapping active layer comprises one or more of the above-mentioned polya-fused ring conjugated macromolecules.
The seventh aspect of the present invention provides a method for preparing a photodetector, wherein the method comprises using an electron donor material and/or an electron acceptor material containing one or more of the above-mentioned polycyclic conjugated macromolecules for forming a light-trapping active layer.
The poly-fused ring conjugated macromolecule provided by the invention has stronger light absorption, higher charge transmission performance and proper electronic energy level, and is suitable for being used as a photovoltaic material or a light detection material to be applied to the preparation of a solar cell or a light detector.
Drawings
FIG. 1 shows an ultraviolet-visible absorption spectrum of a polycyclic conjugated macromolecule represented by the formula (1-7-1) obtained in example 1 of the present invention, wherein the solution is a solution (10) prepared using chloroform as a solvent -6 mol/L) of the film is a film (100 nm in thickness) formed by spin coating of a chloroform solution.
FIG. 2 is a cyclic voltammogram of a polycyclic conjugated macromolecule represented by formula (1-7-1) obtained in example 1 of the present invention.
Fig. 3 is an I-V curve (current-voltage curve) of the solar cell obtained in example 9.
FIG. 4 is an I-V curve of the solar cell obtained in example 10.
FIG. 5 is an I-V curve of the solar cell obtained in example 11.
FIG. 6 is an I-V curve of the solar cell obtained in example 12.
FIG. 7 is an I-V curve of the solar cell obtained in example 13.
FIG. 8 is an I-V curve of the solar cell obtained in example 14.
FIG. 9 is an I-V curve of the solar cell obtained in example 15.
FIG. 10 is an I-V curve of the solar cell obtained in comparative example 1.
Detailed Description
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
In the present invention, each group is independently selected from the group represented, and when each group occurs simultaneously and at multiple positions in the compound, they are independently selected, may be the same, or may be different, for example, although
Figure BDA0001280723140000051
Having 4R in the group shown 8 However, these 4 Rs 8 Are independently selectable, and may be the same or different.
In the present invention, the first and second liquid crystal display panels,
Figure BDA0001280723140000052
the dotted lines in the structures with dotted connecting bonds indicate the connecting sites and indicate the connecting bonds;
Figure BDA0001280723140000053
The solid lines other than parentheses to which any group or atom is not attached in the structures with solid line bonds also indicate the attachment sites, indicating bonds.
In the present invention, the composition contains
Figure BDA0001280723140000054
The group represents that both the left and right sides of the bond through which the group-F intervenes are substituted with F, respectively, and for example, the following formula (1-7-F1) actually means a mixture of compounds represented by formula (1-7-2) in which both A groups are the group A-2, formula (1-7-3) in which both A groups are the group A-3, and formula (1-7-4) in which one of the A groups is the group A-2 and the other is the group A-3.
The present invention provides a polycyclic fused ring conjugated macromolecule, which is a compound represented by the following formula (1), and the conjugated macromolecule is not a compound represented by the following formula (GK):
formula (1)
Figure BDA0001280723140000055
Formula (GK)
Figure BDA0001280723140000056
The individual radicals in formula (1) are as defined in the summary of the invention.
According to the present invention, in order to obtain a conjugated molecule having stronger light absorption, higher charge transport performance, and more suitable electron energy level, it is preferable that each group B independently represents 1 to 5 thiophene conjugated condensed ring structures or 1 to 5 furan conjugated condensed ring structures; each Z is independently selected from C, N and Si; each X, each X' and each Y is independently selected from O and S; m is an integer of 0 to 4; n is an integer of 0 to 4; p is an integer of 0 to 4; each R is 4 -R 10 Each independently selected from H, halogen, C1-C20 alkyl, C1-C20 alkoxy, C1-C20 alkylthio and C6-C24 aryl.
More preferably, each group B independently represents 1 to 4 thiophene conjugated fused ring structures or 1 to 4 furan conjugated fused ring structures; each of R 4 -R 5 Each R 7 -R 8 And each R 10 Each independently selected from H, halogen, C1-C10 alkyl, C1-C10 alkoxy, C1-C10 alkylthio and C6-C12 aryl; each R is 6 And each R 9 Each independently selected from H,Halogen, C4-C15 alkyl, C4-C15 alkoxy, C4-C15 alkylthio and C6-C12 aryl.
Even more preferably, each Z is selected from C; each R is 4 -R 5 Each R 7 -R 8 And each R 10 Each independently selected from H, F, cl, br, I, methyl, ethyl, n-propyl, n-butyl, methoxy, ethoxy, n-propoxy, n-butoxy, methylthio, ethylthio, n-propylthio and n-butylthio; each R is 6 And each R 9 Each independently selected from the group consisting of H, n-butyl, n-pentyl, n-hexyl, n-octyl, 2-ethylhexyl, n-butoxy, n-pentoxy, n-hexoxy, n-octoxy, 2-ethylhexoxy, n-butylthio, n-pentoxy, n-hexoxy, n-octoxy, and 2-ethylhexoxy.
Where n is 0, R can be considered to be 3 When the substituent is absent, the group A is directly bonded to the fused ring unit main body of the compound represented by the formula (1) to form a conjugated structure.
Specific examples of the C1-C30 alkyl group may be, for example: methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl, 2-ethylhexyl, and the like. Alkyl groups within other ranges of the invention may also be selected from this specific example as appropriate.
Among them, specific examples of the alkoxy group having 1 to 30 carbon atoms may be, for example: methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, tert-butoxy, n-pentoxy, n-hexoxy, n-heptoxy, n-octoxy, n-nonoxy, n-decoxy, 2-ethylhexoxy, and the like. The alkoxy group in the other ranges of the present invention can be selected from the specific examples as appropriate.
Among them, specific examples of the alkylthio group of C1 to C30 may be, for example: methylthio, ethylthio, n-propylthio, isopropylthio, n-butylthio, isobutylthio, tert-butylthio, n-pentylthio, n-hexylthio, n-heptylthio, n-octylthio, n-nonylthio, n-decylthio, 2-ethylhexylthio and the like. Alkylthio groups in other ranges of the present invention may be selected from the specific examples as appropriate.
Specific examples of the aryl group having 6 to 30 carbon atoms may include: phenyl, benzyl, p-tolyl, and the like. Aryl groups within other ranges of the invention may also be selected from this specific example as appropriate.
Wherein, two groups B located at both sides of the structure of the compound (1) are understood to constitute a conjugated structure together with the middle and both end structures of the compound (1), wherein each independently represents 1-10 thiophene conjugated condensed-ring structures or 1-10 furan conjugated condensed-ring structures, and when the group B is 1 thiophene conjugated condensed-ring structure or 1 furan conjugated condensed-ring structure, actually, 1 thiophene or furan group forms a basic structure of a conjugated macromolecule with the middle structure and both end structures at both sides; for example, when the group B has 2 or more thiophene conjugated condensed ring structures, it can be understood as an n-thiophene structure 1
Figure BDA0001280723140000071
And the anti-thiophene structure 2->
Figure BDA0001280723140000072
In alternating conjugated connection, as shown in formula>
Figure BDA0001280723140000073
The two carbon atoms joined by the dotted line are shared between the two rings to form: ->
Figure BDA0001280723140000074
If the fused ring structure is 2 thiophene conjugated fused ring structures and is 3 thiophene rings, a structure No. 2 can be connected to the left side of the structure No. 1 in the same manner, or a structure No. 1 can be connected to the right side of the structure No. 2 to form positive and negative alternating thiophene conjugated fused ring structures such as 1-2-1 and the like. Multiple furan conjugated fused ring structures are similarly understood.
Preferably, the conjugated macromolecule is one of the compounds shown in the following formula:
formula (1-7)
Figure BDA0001280723140000075
Formula (1-9)
Figure BDA0001280723140000076
In a preferred embodiment of the invention, R is 1 Are not all H.
According to the invention, the group A has a strong electron pulling effect, and the group A is positioned at two ends of the condensed ring unit, so that the obtained conjugated macromolecule has strong visible light absorption capacity, high charge transmission performance and proper electronic energy level, and is suitable for being used as a photovoltaic material to be applied to the preparation of an organic solar cell; the material is also suitable for being used as a light detection material in a light detector.
Preferably, the group a is selected from one or more of the following groups:
the group A-1 is
Figure BDA0001280723140000077
Group A-2 is->
Figure BDA0001280723140000078
Group A-3 is->
Figure BDA0001280723140000079
Group A-4 is>
Figure BDA00012807231400000710
Group A-5 is->
Figure BDA00012807231400000711
Group A-6 is>
Figure BDA00012807231400000712
According to the present invention, preferably, the multiple-fused ring conjugated macromolecule is one of compounds represented by the following formulae:
formula (1-7-1): in the formula (1-7), Z is C, A is the group A-1,R 3 Is absent, R 1 Are all made of
Figure BDA0001280723140000081
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA0001280723140000082
And R is 9 Is n-hexyl;
formula (1-7-2): in the formula (1-7), Z is C, A is the group A-2,R 3 Is absent, R 1 Are all made of
Figure BDA0001280723140000083
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA0001280723140000084
And R is 9 Is n-hexyl;
formula (1-7-3): in the formula (1-7), Z is C, A is the group A-3,R 3 Is absent, R 1 Are all made of
Figure BDA0001280723140000085
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA0001280723140000086
And R is 9 Is n-hexyl;
formula (1-7-4): in the formula (1-7), Z is C, one A is a group A-2, and the other A is a group A-3,R 3 Is absent, R 1 Are all made of
Figure BDA0001280723140000087
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA0001280723140000088
And R is 9 Is n-hexyl;
formula (1-7-5): in the formula (1-7), Z is C, A is a group A-4,R 3 Is absent, R 1 Are all made of
Figure BDA0001280723140000089
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA00012807231400000810
And R is 9 Is n-hexyl;
formula (1-7-6): in the formula (1-7), Z is C, A is a group A-5,R 3 Is absent, R 1 Are all made of
Figure BDA00012807231400000811
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA00012807231400000812
And R is 9 Is n-hexyl;
formula (1-7-7): in the formula (1-7), Z is C, A is a group A-6,R 3 Is absent, R 1 Are all made of
Figure BDA00012807231400000813
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA00012807231400000814
And R is 9 Is n-hexyl;
formula (1-9-1): in the formula (1-9), Z is C, A is group A-1,R 3 Is absent, R 1 Are all made of
Figure BDA00012807231400000815
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA00012807231400000816
And R is 9 Is n-hexyl;
formula (1-9-2): in the formula (1-9), Z is C, A is group A-2,R 3 Is absent, R 1 Are all made of
Figure BDA00012807231400000817
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA00012807231400000818
And R is 9 Is n-hexyl;
formula (1-9-3): in the formula (1-9), Z is C, A is group A-3,R 3 Is absent, R 1 Are all made of
Figure BDA00012807231400000819
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA00012807231400000820
And R is 9 Is n-hexyl;
formula (1-9-4): in the formula (1-9), Z is C, one A is a group A-2, and the other A is a group A-3,R 3 Is absent, R 1 Are all made of
Figure BDA00012807231400000821
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA00012807231400000822
And R is 9 Is n-hexyl;
formula (1-9-5): in the formula (1-9), Z is C, A is group A-4,R 3 Is absent, R 1 Are all made of
Figure BDA0001280723140000091
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA0001280723140000092
And R is 9 Is n-hexyl.
Formula (1-9-6): in the formula (1-9), Z is C, A is group A-5,R 3 Is absent, R 1 Are all made of
Figure BDA0001280723140000093
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA0001280723140000094
And R is 9 Is n-hexyl;
formula (1-9-7): in the formula (1-9), Z is C, A is group A-6,R 3 Is absent, R 1 Are all made of
Figure BDA0001280723140000095
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA0001280723140000096
And R is 9 Is n-hexyl.
In a second aspect, the present invention provides a method for preparing the above-mentioned polycyclic conjugated macromolecule, which comprises:
subjecting a compound represented by the following formula (2) and a compound represented by the formula (a) to a dehydration condensation reaction in the presence of a basic compound and in an organic solvent to obtain a compound represented by the formula (1); wherein,
formula (2)
Figure BDA0001280723140000097
Formula (a) is selected from one or more of the following compounds:
Figure BDA0001280723140000098
in this method, the group A-B, R 1 -R 10 As described above, the present invention is not described in detail herein.
Wherein, the compound shown in the formula (2) can be selected according to the structure of the poly-fused ring conjugated macromolecule, preferably, the compound shown in the formula (2) is one or more of the following formulas:
formula (2-7)
Figure BDA0001280723140000101
Formula (2-9)
Figure BDA0001280723140000102
Specific examples of the compound represented by the formula (2) may be, for example, one or more of the following formulae:
formula (2-7-1): in the formula (2-7), Z is C or R 3 Is absent, R 1 Are all made of
Figure BDA0001280723140000103
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA0001280723140000104
And R is 9 Is n-hexyl;
formula (2-9-1): in the formula (2-9), Z is C or R 3 Is absent, R 1 Are all made of
Figure BDA0001280723140000105
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure BDA0001280723140000106
And R is 9 Is n-hexyl.
According to the present invention, the compound represented by the formula (2) may be a commercially available product, or may be prepared by a method conventional in the art, for example, by reacting an aldehyde group with butyllithium (for example, by a method described in adv. Mater.,2015,27,1170-1174, j.am. Chem. Soc.,2016,138,4955-4961, etc..
According to the present invention, the compound represented by the formula (a) may be appropriately selected according to the group a, and for example, specific examples of the compound represented by the formula (a) may include:
formula (a-2-1):
Figure BDA0001280723140000107
formula (a-2-2):
Figure BDA0001280723140000108
Formula (a-2-3):
Figure BDA0001280723140000109
Formula (a-2-4):
Figure BDA00012807231400001010
Formula (a-2-5):
Figure BDA00012807231400001011
Formula (a-2-6):
Figure BDA00012807231400001012
Formula (a-2-7):
Figure BDA00012807231400001013
Formula (a-2-8):
Figure BDA00012807231400001014
Formula (a-2-9):
Figure BDA00012807231400001015
formula (a-2-10):
Figure BDA00012807231400001016
Formula (a-2-11):
Figure BDA00012807231400001017
Formula (a-2-12):
Figure BDA00012807231400001018
Is based on the formula (a-4-1)>
Figure BDA0001280723140000111
Is based on the formula (a-5-1)>
Figure BDA0001280723140000112
Formula (a-6-1)>
Figure BDA0001280723140000113
According to the present invention, the compound represented by formula (a) may be a commercially available product or may be prepared by a method conventional in the art, and will not be described herein again.
According to the present invention, aldehyde groups connected to both ends of the compound represented by formula (2) can be subjected to dehydration condensation with the compound represented by formula (a) to form the compound represented by formula (1), wherein the amount of the compound represented by formula (2) and the compound represented by formula (a) used is not particularly limited as long as the compound represented by formula (1) can be obtained, and preferably, the molar ratio of the compound represented by formula (2) to the compound represented by formula (a) is 1:2-100, more preferably 1:4-10.
According to the present invention, the reaction is carried out in the presence of a basic compound, which may be, for example, one or more of piperidine, pyridine and triethylamine, thereby making it possible to provide a basic environment to the reaction system. The amount of the basic compound to be used is not particularly limited as long as it can provide a basic environment and contribute to the progress of the dehydration condensation reaction, and is, for example, 0.1 to 1000mmol, more preferably 1 to 50mmol, relative to 1mmol of the compound represented by formula (2).
According to the invention, the organic solvent is, for example, chloroform and/or dichloromethane. The amount of the organic solvent to be used may be, for example, 20 to 500mL (preferably 40 to 400 mL) per 1mmol of the compound represented by the formula (2).
According to the present invention, preferably, the dehydration condensation reaction conditions include: the temperature is 20-100 deg.C (such as 50-100 deg.C), and the time is 10min-48h (such as 10-20 h). More preferably, the conditions of the dehydration condensation reaction include: the temperature is 60-80 ℃ and the time is 10-15h.
In order to ensure the smooth progress of the reaction, the method further comprises maintaining the reaction system under an inert atmosphere before the reaction, for example, after all the raw materials are added, the inert gas is introduced into the reaction system for 20-40min to remove air. The inert gas may be, for example, argon, helium, nitrogen, or the like.
According to the present invention, in order to extract the compound represented by formula (1) from the reaction solution, the method further comprises a post-treatment step of, for example, mixing the dehydration condensation reaction product with methanol (the amount of methanol may be 200 to 1000mL, for example, relative to the total volume of 100mL of the reaction solution), followed by solid-liquid separation, and subjecting the resulting solid phase to chromatographic separation using a silica gel column (200 to 300 mesh silica gel may be used, and the eluent may be a mixture of petroleum ether and dichloromethane in a volume ratio of 1.2 to 3).
In a third aspect, the present invention provides a photovoltaic material or a photodetection material containing one or more of the above-mentioned multiple-fused ring conjugated macromolecules.
According to the present invention, the photovoltaic material is not particularly limited as long as it contains the above-mentioned multiple-fused ring conjugated macromolecule of the present invention, and preferably refers to an electron donor material and/or an electron acceptor material in a light trapping active layer in a solar cell; or photovoltaic materials in the electron transport layer and/or the modification layer (for example for perovskite solar cells).
For example, the electron donor polymer material PBnDT-FTAZ may be mixed with the conjugated molecule provided by the present invention in a weight ratio of 0.5 to 4:1 as a material for the photovoltaic material, in particular as a material for a light-trapping active layer of a solar cell, wherein in particular the polyatomic fused ring conjugated macromolecule provided by the invention is preferred as an electron acceptor material.
The structural unit of the polymer material PBnDT-FTAZ is shown as follows:
Figure BDA0001280723140000121
wherein-C 6 H 13 Represents n-hexyl, -C 4 H 9 Represents a n-butyl group. The preparation of the polymer material PBnDT-FTAZ can be carried out, for example, by a method in reference (j.am. Chem. Soc.2011,133, 4625), and the present invention is not described herein again.
According to the present invention, the photodetecting material is not particularly limited as long as it contains the above-mentioned multiple-fused-ring conjugated macromolecule of the present invention.
In a fourth aspect, the invention provides a solar cell in which the photovoltaic material comprises the above polycyclic and fused ring conjugated macromolecule.
According to the present invention, the structure of the solar cell is not particularly limited as long as the photovoltaic material used therein contains the polyacene ring conjugated macromolecule of the present invention, so that the photoelectric conversion efficiency of the solar cell can be effectively improved. For example, the solar cell is an organic solar cell, a perovskite solar cell, or the like.
Wherein, when the cell is an organic solar cell comprising a light-trapping active layer, the electron donor material and/or the electron acceptor material in the light-trapping active layer contain one or more of the multiple fused ring conjugated macromolecules.
When the cell is a perovskite solar cell comprising an electron transport layer, a perovskite light trapping layer and a modification layer, one or more of the poly-fused ring conjugated macromolecules are contained in the light trapping layer and/or the electron transport layer and/or the modification layer.
In particular, the conjugated molecules of the present invention are preferably used as electron acceptor materials in combination with other electron donor materials to form a light-trapping active layer of a solar cell. As such an electron donor material there may be mentioned, for example, the polymeric material PBnDT-FTAZ, as defined above.
Wherein, the polymer material PBnDT-FTAZ can be mixed with the conjugated macromolecule provided by the invention in a weight ratio of 0.5-4:1 are combined to form a light trapping active layer.
The fifth aspect of the present invention provides a method for manufacturing the above solar cell, the method including: disposing the multiple fused ring conjugated macromolecules in a layer comprising a photovoltaic material.
According to the present invention, the process of manufacturing the solar cell is not particularly limited, and may be performed by a method that is conventional in the art.
Wherein, for organic solar cells, the layer comprising the photovoltaic material may be an active layer for light trapping.
For perovskite solar cells, the photovoltaic material-containing layer may be a light-trapping layer and/or an electron-transporting layer and/or a modifying layer.
According to the present invention, the process of manufacturing the organic solar cell may include, for example: for a device with an inverted structure: coating a ZnO layer as a cathode modification layer (with the thickness of 20-50nm for example) on conductive glass (such as indium tin oxide glass and ITO) as a cathode, drying, coating a mixture of a polymer material PBnDT-FTAZ and the conjugated macromolecules provided by the invention as an active layer on the ZnO layer, drying, and performing vacuum evaporation on molybdenum oxide (with the thickness of 5-10nm for example) and Ag (with the thickness of 50-100nm for example) as an anode. For a forward structure device: unlike the inverted structure devices, which use a polymer layer formed from a polymer combination such as poly 3,4-ethylenedioxythiophene-polystyrene sulfonate, poly 3,4-ethylenedioxythiophene-polystyrene sulfonate also stands for PEDOT: PSS; metal calcium replaces molybdenum oxide; al replaces Ag.
According to the present invention, the process of manufacturing a perovskite solar cell may for example comprise: cleaning Indium Tin Oxide (ITO) glass as cathode with detergent, sequentially ultrasonic cleaning with deionized water, acetone and isopropanol, drying, and spin-coating an electron transport layer (such as SnO) with thickness of about 30nm 2 ) And annealing for 30 minutes for standby. Dissolving the above poly-fused ring conjugated macromolecule in DMF (e.g. 0.25 mg/mL), adding appropriate amount of PbI 2 Then spin-coating the uniformly mixed solution on the electron transport layer, annealing for 20 minutes at 70 ℃, cooling, spin-coating the iodoformamidine (FAI)/iodomethylamine (MAI) 2:1) mixed solution on the electron transport layer, annealing for 15 minutes at 150 ℃ to obtain the conjugated macromolecule doped perovskite layer provided by the invention, and finally spin-coating 2,2',7,7' -tetra [ N, N-di (4-methoxyphenyl) amino ] with the concentration of 80mg/mL]-9,9' -spirobifluorene (spiro-OMeTAD) solution as hole transport layer. Vacuum (absolute pressure 2X 10) on the active layer -5 Pa) and depositing metal Ag with the thickness of about 150nm as an anode of the solar cell.
The conjugated molecule provided by the invention has stronger absorption peaks in visible light and near infrared regions, for example, the conjugated molecule has a strong absorption peak in a wavelength range of 600-800 nm; the conjugated molecule has good thermal stability, can resist the temperature of about 340 ℃ without decomposition; the test result of the cyclic voltammetry shows that the HOMO energy level and the LUMO energy level of the material can be matched with the energy level of most universal electron donor materials, and the material has better electron or hole accepting capability, and is very favorable for being used as a photovoltaic material of a solar cell, particularly an electron acceptor and/or an electron donor material, and particularly as an electron acceptor material.
In a sixth aspect, the present invention provides a photodetector comprising a light trapping active layer, wherein an electron donor material and/or an electron acceptor material in the light trapping active layer comprises one or more of the above-mentioned polya-fused ring conjugated macromolecules.
The present invention is not particularly limited in the configuration of the photodetector, and a conventional configuration in the art may be employed as long as it includes the above-mentioned multiple-fused ring conjugated macromolecule of the present invention, so that an excellent photodetection effect can be obtained.
The seventh aspect of the present invention provides a method for preparing a photodetector, wherein the method comprises using an electron donor material and/or an electron acceptor material containing one or more of the above-mentioned multiple-fused-ring conjugated macromolecules for forming a light-trapping active layer.
The present invention is not particularly limited in the process for preparing the photodetector, and the process for preparing the photodetector in the art can be employed as long as it includes the above-mentioned multiple fused ring conjugated macromolecule of the present invention, so that an excellent photodetection effect can be obtained.
The present invention will be described in detail below by way of examples.
In the following examples: molecular structural formula of-C 6 H 13 Are each n-hexyl, -C 4 H 9 Are all n-butyl, -C 2 H 5 Are all ethyl groups. 1 H NMR was measured using a Bruker AVANCE model 400/300 NMR spectrometer. MS (MALDI) was measured using a Bruker Daltonics Biflex III MALDI-TOF Analyzer model mass spectrometer. The UV-visible absorption spectrum and the visible light transmittance spectrum were measured using a Jasco V-570spectrophotometer model UV-visible spectrophotometer. The cyclic voltammetry curve is cyclic voltammetry measurement adopting CHI660C electrochemical work modelThe tester is used for measurement. The I-V curve is measured by B2912A Precision Source/measurement Unit (Agilent Technologies), from which parameters such as short-circuit current, open-circuit voltage, fill factor, and photoelectric conversion efficiency can be obtained. The preparation of the polymeric material PBnDT-FTAZ can be carried out, for example, by the methods in the literature (for example, j.am. Chem. Soc.2011,133, 4625). The compound represented by the formula (a-2-6) was prepared according to the method described in "J.Am.chem.Soc.2017,139, 1336-1343". The compound represented by the formula (a-5-1) was prepared according to the method in "adv.mater.2017,29,1700254".
Preparation example 1
This preparation example is illustrative of the method for producing the compound represented by the formula (2-7-1).
Figure BDA0001280723140000141
As shown in the above reaction scheme, a compound represented by the formula IT1 (141mg, 0.1mmol; available from Technology Ltd, nakay, suzhou), tetrahydrofuran (20 mL) was charged into a reaction vessel, and the mixture was stirred at-78 ℃ for 1 hour under argon gas. N-butyllithium (0.19mL, 0.3mmol, 1.6M) was slowly added dropwise, stirring was carried out at-78 deg.C for 2h, N-dimethylformamide (36.6mg, 0.5mmol) was added, and the reaction product was slowly returned to room temperature (about 25 deg.C), stirring was carried out overnight (about 12 h). Then, water (0.2 mL) was added for quenching, saturated brine and dichloromethane were used for extraction, the mixture was dried over magnesium sulfate and spin-dried, and the obtained precipitate was chromatographed on a silica gel column (using 200-300 mesh silica gel, eluent petroleum ether/dichloromethane at a volume ratio of 2:1) to obtain a bright yellow solid (111 mg, yield 75.8%), which was the compound represented by formula (2-7-1). 1 H NMR(400MHz,CDCl 3 ):δ9.65(s,2H),7.41(s,2H),6.98(m,8H),6.95(m,8H),6.41(d,J=3.2Hz,2H),6.07(d,J=3.2Hz,2H),2.72(m,12H),1.60(m,14H),1.33(m,36H),0.97(m,24H).MS(MALDI):m/z1464(M+).
Preparation example 2
This preparation example is illustrative of the method for producing the compound represented by the formula (2-9-1).
Figure BDA0001280723140000151
As shown in the above reaction scheme, a compound represented by the formula IT3 (152mg, 0.1mmol; available from Technology Ltd, nakay, suzhou), tetrahydrofuran (20 mL) was charged into a reaction vessel, and the mixture was stirred at-78 ℃ for 1 hour under argon gas. N-butyllithium (0.19mL, 0.3mmol, 1.6M) was slowly added dropwise, stirred at-78 deg.C for 2h, N-dimethylformamide (36.6mg, 0.5mmol) was added, and the reaction product was slowly returned to room temperature (about 25 deg.C) and stirred overnight (about 12 h). Then, water (0.2 mL) was added for quenching, extraction was performed with saturated brine and dichloromethane, drying was performed with magnesium sulfate, and spin-drying was performed to obtain a precipitate, which was chromatographed on a silica gel column (using 200-300 mesh silica gel, eluent petroleum ether/dichloromethane at a volume ratio of 2:1) to obtain a bright yellow solid (118 mg, yield 74.9%), which was the compound represented by formula (2-9-1). 1 H NMR(400MHz,CDCl 3 ):δ9.84(s,2H),8.15(s,2H),7.22(d,J=3.2Hz,2H),6.98(m,8H),6.89(m,8H),6.81(d,J=3.2Hz,2H),2.75(m,12H),1.62(m,14H),1.30(m,36H),0.99(m,24H).MS(MALDI):m/z1518(M+).
Preparation example 3
This preparation example is illustrative of the method for producing the compound represented by the formula (a-4-1).
Figure BDA0001280723140000152
As shown in the above reaction scheme, compound T1 (200mg, 1.3mmol; synthesized according to the method of the document Dyes and Pigments 2016,134,129), malononitrile (171mg, 2.6 mmol), ethanol (20 mL) were added to the reaction vessel, argon was passed through, and stirring was carried out at 25 ℃ for 30 minutes. Sodium acetate (132mg, 1.6 mmol) was added slowly and stirred at 25 ℃ for 2h, water (30 mL) was added and stirred for 1.5h. Then, concentrated hydrochloric acid was added to adjust PH =2, and the precipitate was filtered through filter paper and washed with water (400 mL), and the resulting precipitate was chromatographed on a silica gel column (using 200-300 mesh silica gel and chloroform as an eluent) to obtain an orange solid (85 mg, yield 32%), which was the compound represented by the formula (a-4-1). 1 H NMR(400MHz,CDCl 3 ):δ8.64(d,J=2.4Hz,1H),8.07(d,J=2.4Hz,1H),4.00(s,2H).MS(EI):m/z 200(M + ).
Preparation example 4
This preparation example is intended to illustrate the preparation of the compounds represented by the formulae (a-2-3) and (a-2-4).
Figure BDA0001280723140000161
As shown in the above reaction scheme, 5-fluoro-1,3-indandione (820mg, 5mmol; from Ark Co.), malononitrile (660mg, 10mmol), and ethanol (30 mL) were charged into a reaction vessel, and stirred at 25 ℃ for 30 minutes under argon gas. Sodium acetate (492mg, 6 mmol) was added slowly and stirred at 25 ℃ for 2h, water (40 mL) was added and stirred for 1.5h. Then, concentrated hydrochloric acid was added to adjust pH =2, and the precipitate was filtered through a filter paper, washed with water (300 mL), and subjected to chromatographic separation on a silica gel column (using 200 to 300 mesh silica gel, and an eluent was methanol/chloroform at a volume ratio of 1:5) to obtain an off-white solid (610 mg, yield 57.5%) which was a mixture of the compound represented by formula (a-2-3) (71 mol%) and the compound represented by formula (a-2-4) (29 mol%). Of mixtures 1 H NMR(400MHz,CDCl 3 ):δ8.68(dd,J=8.8Hz,0.28H),7.61(dd,J=8.2Hz,0.72H),8.01(m,0.76H),7.61(m,0.36H),7.55(m,1H),3.76(d,2H).MS(EI):m/z 212(M + ).
Example 1
This example serves to illustrate the conjugated macromolecules of the invention and their preparation.
Figure BDA0001280723140000162
As shown in the above reaction scheme, the compound represented by the formula (2-7-1) (146.2 mg, 0.1mmol) obtained in production example 1, the compound represented by the formula (a-2-1) (78mg, 0.4mmol; available from TCI Co., ltd.), pyridine (0.8 mL, 0.96mmol) and chloroform (30 mL) were charged into a reaction vessel, and argon gas was introduced for 25min, followed by refluxing at 65 ℃ for 15h. After cooling to room temperature (about 25 ℃ C.), the reaction product was poured into 200mL of methanolAnd filtering, and separating the obtained precipitate by chromatography with silica gel chromatographic column (200-300 mesh silica gel, and eluting with 1:2 petroleum ether/dichloromethane) to obtain blue solid (168.7 mg, yield 92.9%), which is the poly-fused ring conjugated macromolecule represented by formula (1-7-1). 1 H NMR(400MHz,CDCl 3 ):δ8.69(s,2H),8.62(d,J=7.6Hz,2H),7.86(d,J=6.8Hz,2H),7.75(m,4H),7.44(s,2H),7.01(m,16H),6.43(d,J=3.2Hz,2H),6.10(d,J=3.2Hz,2H),2.61(m,12H),2.12(m,2H),1.61(m,12H),1.37(m,36H),1.00(m,24H).MS(MALDI):m/z 1814(M+).
The ultraviolet-visible absorption spectrum of the polycyclic conjugated macromolecule represented by the formula (1-7-1) is shown in FIG. 1, wherein the ultraviolet-visible absorption spectrum has a strong absorption peak in a wavelength range of 600-800nm, and the maximum molar extinction coefficient is 2.7 × 10 5 M –1 ·cm –1 The film has the strongest absorption at about 738 nm; the maximum absorption peak of the film is shifted 24nm from the red in solution.
The cyclic voltammogram is shown in FIG. 2, the HOMO energy level is-5.45eV, the LUMO energy level is-3.84 eV, and the band gap is 1.61eV, which indicates that the poly-fused ring conjugated macromolecule shown in the formula (1-7-1) has better electron accepting capability and can be matched with the energy level of most common electron donor materials.
Example 2
This example illustrates the conjugated macromolecules of the invention and their preparation.
Figure BDA0001280723140000171
As shown in the above reaction scheme, the compound represented by the formula (2-7-1) obtained in production example 1 (146.2mg, 0.1mmol), the mixture represented by the formulae (a-2-3) and (a-2-4) obtained in production example 4 (85mg, 0.4 mmol), pyridine (0.8mL, 0.96mmol), and chloroform (30 mL) were charged into a reaction vessel, purged with argon for 25min, and refluxed at 65 ℃ for 15h. Cooling to room temperature (about 25 deg.C), pouring the reaction product into 200mL of methanol and filtering to obtain a precipitate, and separating with silica gel column (using 200-300 mesh silica gel, eluting with petroleum ether/dichloromethane at a volume ratio of 1:2) to obtain a productTo a blue solid (172.2 mg, yield 93.1%), which was a poly-fused ring conjugated macromolecule represented by formula (1-7-F1) which was a mixture of compounds represented by formula (1-7-2), formula (1-7-3) and formula (1-7-4). 1 H NMR(400MHz,CDCl 3 ):δ8.85(s,2H),8.73(dd,J=4.0Hz,0.5H),8.38(dd,J=1.6Hz,1.5H),7.94(dd,J=5.2Hz,1.5H),7.57(dd,J=2.8Hz,0.5H),7.50(m,2H),7.44(s,2H),7.01(m,16H),6.43(d,J=3.2Hz,2H),6.10(d,J=3.2Hz,2H),2.61(m,12H),2.12(m,2H),1.61(m,12H),1.37(m,36H),1.00(m,24H).MS(MALDI):m/z 1851(M+).
The ultraviolet-visible absorption spectrum of the mixture of the three poly-fused ring conjugated macromolecules shown in the formula (1-7-F1) shows that the mixture has a strong absorption peak in the wavelength range of 600-800nm, and the maximum molar extinction coefficient is 2.9 multiplied by 10 5 M –1 ·cm –1 The film absorbs most strongly at about 743 nm; the maximum absorption peak of the film is shifted 20nm from the red in solution.
The HOMO energy level is-5.49eV, the LUMO energy level is-3.89 eV and the band gap is 1.60eV according to cyclic voltammetry, and the result shows that the mixture of the three multi-fused ring conjugated macromolecules shown in the formula (1-7-F1) has good electron accepting capacity and can be matched with most of universal electron donor materials in energy level.
Example 3
This example serves to illustrate the conjugated macromolecules of the invention and their preparation.
Figure BDA0001280723140000181
As shown in the above reaction scheme, the compound represented by the formula (2-7-1) (146.2mg, 0.1mmol) obtained in the above production example 1, the compound represented by the formula (a-2-6) (92mg, 0.4 mmol), pyridine (0.8mL, 0.96mmol) and chloroform (30 mL) were charged into a reaction vessel, and argon gas was introduced for 25min, followed by refluxing at 65 ℃ for 15h. After cooling to room temperature (about 25 deg.C), the reaction product was poured into 200mL of methanol and filtered, and the resulting precipitate was chromatographed on a silica gel column (using 200-300 mesh silica gel, eluent petroleum ether/dichloromethane at a volume ratio of 1:2) to give a blue solid (168.1 mg, yield89.1 percent), namely the poly-fused ring conjugated macromolecule shown as the formula (1-7-5). 1 H NMR(400MHz,CDCl 3 ):δ8.83(s,2H),8.69(s,2H),8.51(s,2H),8.32(s,2H),7.11(m,16H),6.58(d,J=3.2Hz,2H),6.32(d,J=3.2Hz,2H),2.59(m,12H),2.15(m,2H),1.63(m,12H),1.39(m,36H),1.03(m,24H).MS(MALDI):m/z 1887(M+).
The ultraviolet-visible absorption spectrum of the poly-fused ring conjugated macromolecule shown in the formula (1-7-5) shows that the poly-fused ring conjugated macromolecule has a strong absorption peak in the wavelength range of 600-800nm, and the maximum molar extinction coefficient is 2.9 multiplied by 10 5 M –1 ·cm –1 The film has strongest absorption at the position of 746nm or so; the maximum absorption peak of the film is shifted 20nm from the red in solution.
The HOMO energy level is-5.50eV, the LUMO energy level is-3.93 eV and the band gap is 1.57eV through cyclic voltammetry, which shows that the poly-fused ring conjugated macromolecule shown in the formula (1-7-5) has better electron accepting capability and can be matched with the energy level of most common electron donor materials.
Example 4
This example serves to illustrate the conjugated macromolecules of the invention and their preparation.
Figure BDA0001280723140000182
As shown in the above reaction scheme, the compound represented by the formula (2-7-1) (146.2mg, 0.1mmol) obtained in production example 1, the compound represented by the formula (a-4-1) (80mg, 0.4 mmol) obtained in production example 3, pyridine (0.8 mL, 0.96mmol) and chloroform (30 mL) were charged into a reaction vessel, and argon gas was introduced for 25min, followed by refluxing at 65 ℃ for 15h. After cooling to room temperature (about 25 ℃), the reaction product was poured into 200mL of methanol and filtered, and the obtained precipitate was chromatographed on a silica gel column (using 200-300 mesh silica gel with an eluent of petroleum ether/dichloromethane at a volume ratio of 1:2) to obtain a blue solid (162.1 mg, yield 88.8%) which was the poly-fused ring conjugated macromolecule represented by formula (1-7-6). 1 H NMR(400MHz,CDCl 3 ):δ8.65(s,2H),8.36(s,2H),7.97(s,2H),7.40(s,2H),7.00(m,16H),6.40(d,J=3.2Hz,2H),6.12(d,J=3.2Hz,2H),2.59(m,12H),2.10(m,2H),1.63(m,12H),1.37(m,36H),1.00(m,24H).MS(MALDI):m/z 1826(M+).
The ultraviolet-visible absorption spectrum of the poly-fused ring conjugated macromolecule shown in the formula (1-7-6) shows that the poly-fused ring conjugated macromolecule has a strong absorption peak in the wavelength range of 600-800nm, and the maximum molar extinction coefficient is 2.8 multiplied by 10 5 M –1 ·cm –1 The film has the strongest absorption at the position of about 752 nm; the maximum absorption peak of the film is 30nm red-shifted from the solution.
The HOMO energy level is-5.50eV, the LUMO energy level is-3.94 eV and the band gap is 1.56eV through cyclic voltammetry, which shows that the poly-fused ring conjugated macromolecule shown in the formula (1-7-6) has better electron accepting capability and can be matched with the energy level of most common electron donor materials.
Example 5
This example serves to illustrate the conjugated macromolecules of the invention and their preparation.
Figure BDA0001280723140000191
As shown in the above reaction scheme, the compound represented by the formula (2-7-1) (146.2mg, 0.1mmol) obtained in the above production example 1, the compound represented by the formula (a-5-1) (80mg, 0.4 mmol), pyridine (0.8mL, 0.96mmol) and chloroform (30 mL) were charged into a reaction vessel, and argon gas was introduced for 25min, followed by refluxing at 65 ℃ for 15h. After cooling to room temperature (about 25 ℃), the reaction product was poured into 200mL of methanol and filtered, and the obtained precipitate was chromatographically separated by using a silica gel column (using 200-300 mesh silica gel, eluent being petroleum ether/dichloromethane at a volume ratio of 1:2) to obtain a blue solid (165.8 mg, yield 90.8%), which was the poly-fused ring conjugated macromolecule represented by formula (1-7-7). 1 H NMR(400MHz,CDCl 3 ):δ8.65(s,2H),8.00(m,4H),7.40(s,2H),7.00(m,16H),6.40(d,J=3.2Hz,2H),6.12(d,J=3.2Hz,2H),2.59(m,12H),2.10(m,2H),1.63(m,12H),1.37(m,36H),1.00(m,24H).MS(MALDI):m/z 1826(M+).
The ultraviolet-visible absorption spectrum of the poly-fused ring conjugated macromolecule shown in the formula (1-7-7) shows that the poly-fused ring conjugated macromolecule has a strong absorption peak in the wavelength range of 600-800nm and has the maximum molar extinctionCoefficient of 1.8X 10 5 M –1 ·cm –1 The film has the strongest absorption at the position of about 695 nm; the maximum absorption peak of the film is 30nm shifted from the red in solution.
The HOMO energy level is-5.40eV, the LUMO energy level is-3.70 eV and the band gap is 1.70eV, which show that the poly-fused ring conjugated macromolecule shown in the formula (1-7-7) has better electron accepting capability and can be matched with the energy level of most common electron donor materials.
Example 6
This example serves to illustrate the conjugated macromolecules of the invention and their preparation.
Figure BDA0001280723140000201
As shown in the above reaction scheme, the compound represented by the formula (2-9-1) (157.4 mg, 0.1mmol) obtained in the above production example 2, the compound represented by the formula (a-2-1) (78mg, 0.4mmol; available from TCI Co., ltd.), pyridine (0.8 mL, 0.96mmol) and chloroform (30 mL) were charged into a reaction vessel, passed through argon for 25min, and refluxed at 65 ℃ for 15h. After cooling to room temperature (about 25 ℃), the reaction product was poured into 200mL of methanol and filtered, and the obtained precipitate was chromatographically separated by using a silica gel column (using 200-300 mesh silica gel, eluent being petroleum ether/dichloromethane at a volume ratio of 1:2) to obtain a blue solid (173.6 mg, yield 90.1%) which was the poly-fused ring conjugated macromolecule represented by formula (1-9-1). 1 H NMR(400MHz,CDCl 3 ):δ8.72(s,2H),8.68(d,J=7.6Hz,2H),7.89(d,J=6.8Hz,2H),7.74(m,4H),7.49(s,2H),6.99(m,16H),6.45(d,J=3.2Hz,2H),6.12(d,J=3.2Hz,2H),2.60(m,12H),2.09(m,2H),1.58(m,12H),1.35(m,36H),0.98(m,24H).MS(MALDI):m/z 1927(M+).
The ultraviolet-visible absorption spectrum of the poly-fused ring conjugated macromolecule shown in the formula (1-9-1) shows that the poly-fused ring conjugated macromolecule has a strong absorption peak in the wavelength range of 600-800nm, and the maximum molar extinction coefficient is 2.7 multiplied by 10 5 M –1 ·cm –1 The film has strongest absorption at the position of about 758 nm; the maximum absorption peak of the film is 25nm red-shifted from the solution.
The HOMO energy level is-5.40eV, the LUMO energy level is-3.84 eV and the band gap is 1.56eV, which show that the poly-fused ring conjugated macromolecule shown in the formula (1-9-1) has better electron accepting capability and can be matched with the energy level of most common electron donor materials.
Example 7
This example serves to illustrate the conjugated macromolecules of the invention and their preparation.
Figure BDA0001280723140000211
As shown in the above reaction formula, the compound represented by the formula (2-9-1) obtained in production example 2 (157.4 mg, 0.1mmol), the mixture represented by the formulae (a-2-3) and (a-2-4) obtained in production example 4 (85mg, 0.4 mmol), pyridine (0.8 mL, 0.96mmol) and chloroform (30 mL) were charged into a reaction vessel, and argon was introduced for 25min, followed by refluxing at 65 ℃ for 15h. After cooling to room temperature (about 25 ℃), the reaction product was poured into 200mL of methanol and filtered, and the obtained precipitate was chromatographed on a silica gel column (using 200-300 mesh silica gel, eluent petroleum ether/dichloromethane at a volume ratio of 1:2) to give a blue solid (169.7 mg, yield 86.5%) which is a mixture of the poly-fused ring conjugated macromolecules represented by formula (1-9-F1) which are compounds represented by formula (1-9-2), formula (1-9-3) and formula (1-9-4). 1 H NMR(400MHz,CDCl 3 ):δ8.83(s,2H),8.70(dd,J=4.0Hz,0.5H),8.32(dd,J=1.6Hz,1.5H),7.90(dd,J=5.2Hz,1.5H),7.75(dd,J=2.8Hz,0.5H),7.50(m,2H),7.32(s,2H),7.11(m,16H),6.53(d,J=3.2Hz,2H),6.30(d,J=3.2Hz,2H),2.56(m,12H),2.12(m,2H),1.59(m,12H),1.32(m,36H),0.96(m,24H).MS(MALDI):m/z 1851(M+).
The ultraviolet-visible absorption spectrum of the mixture of the three poly-fused ring conjugated macromolecules shown in the formula (1-9-F1) shows that the mixture has a strong absorption peak in the wavelength range of 600-800nm, and the maximum molar extinction coefficient is 2.9 multiplied by 10 5 M –1 ·cm –1 The film has strongest absorption at the position of 768nm or so; the maximum absorption peak of the film is 30nm shifted from the red in solution.
The HOMO energy level of the polymer is-5.42eV, the LUMO energy level of the polymer is-3.89 eV, and the band gap of the polymer is 1.53eV through cyclic voltammetry, which shows that the mixture of the three multi-fused ring conjugated macromolecules shown in the formula (1-9-F1) has good electron accepting capacity and can be matched with most of universal electron donor materials in energy level.
Example 8
This example serves to illustrate the conjugated macromolecules of the invention and their preparation.
Figure BDA0001280723140000212
As shown in the above reaction scheme, the compound represented by the formula (2-9-1) (157.4 mg, 0.1mmol) obtained in production example 2 above, the compound represented by the formula (a-2-6) (92mg, 0.4 mmol), pyridine (0.8 mL, 0.96mmol) and chloroform (30 mL) were charged into a reaction vessel, purged with argon for 25min, and then refluxed at 65 ℃ for 15h. After cooling to room temperature (about 25 ℃), the reaction product is poured into 200mL of methanol and filtered, and the obtained precipitate is chromatographically separated by using a silica gel chromatographic column (200-300 meshes of silica gel is adopted, and the eluent is petroleum ether/dichloromethane with the volume ratio of 1:2) to obtain a blue solid (181.9 mg, the yield is 91.0 percent), namely the poly-fused ring conjugated macromolecule shown in the formula (1-9-5). 1 H NMR(400MHz,CDCl 3 ):δ8.84(s,2H),8.70(s,2H),8.61(s,2H),8.42(s,2H),7.07(m,16H),6.60(d,J=3.2Hz,2H),6.30(d,J=3.2Hz,2H),2.53(m,12H),2.11(m,2H),1.69(m,12H),1.40(m,36H),1.05(m,24H).MS(MALDI):m/z 1999(M+).
The ultraviolet-visible absorption spectrum of the poly-fused ring conjugated macromolecule shown in the formula (1-9-5) shows that the poly-fused ring conjugated macromolecule has a strong absorption peak in the wavelength range of 600-800nm, and the maximum molar extinction coefficient is 3.0 multiplied by 10 5 M –1 ·cm –1 The film absorbs most strongly at about 772 nm; the maximum absorption peak of the film is 30nm red-shifted from the solution.
The HOMO energy level of the conjugated macromolecule is-5.44eV, the LUMO energy level of the conjugated macromolecule is-3.96 eV, and the band gap of the conjugated macromolecule is 1.48eV through cyclic voltammetry, so that the conjugated macromolecule with multiple fused rings shown in the formula (1-9-5) has good electron accepting capacity and can be matched with most of universal electron donor materials in energy level.
Example 9
This example is for illustrating the solar cell of the present invention.
Indium Tin Oxide (ITO) glass (purchased from Shenzhen glass float glass Co., ltd.) as a cathode is cleaned by a detergent, then sequentially cleaned by deionized water, acetone and isopropanol in an ultrasonic mode, a ZnO cathode modification layer with the thickness of 30nm is coated in a spin mode after drying, and the ZnO cathode modification layer is dried for 30 minutes at the temperature of 200 ℃ for later use.
1.5mg of the poly-fused ring conjugated macromolecule represented by the above formula (1-7-1) and 1mg of the polymer donor material PBnDT-FTAZ were mixed in 0.1mL of chloroform to obtain a mixed solution, which was then spin-coated on the above ZnO layer, and dried to obtain a light trapping active layer (effective area 4 mm) 2 ). Vacuum (absolute pressure 2X 10- 5 Pa) vapor deposition thickness of about 5nm of MoO 3 (available from carbofuran technologies, inc.) and about 80nm of metallic Ag as the anode of the solar cell.
A solar light source was simulated with an AM1.5 filter (model XES-70S1, SAN-EI ELECTRIC Co., ltd.) at 100mW/cm 2 The devices were tested for photovoltaic performance at light intensity calibrated by standard single crystal silicon solar cells (available from VLSI Standards Inc). The resulting I-V curve was measured using B2912A Precision Source/Measure Unit (Agilent Technologies) and controlled by computer using Labview software.
The resulting I-V curve is shown in FIG. 3. The open-circuit voltage V of the solar cell can be obtained by the I-V curve shown in FIG. 3 OC 0.92V, short-circuit current J SC Is 20.85 mA-cm -2 The fill factor FF is 61% and the photoelectric conversion efficiency PCE is 11.70%.
Example 10
A solar cell was finally prepared and tested according to the method described in example 9, except that 1.5mg of a mixture of three polyacondensed ring conjugated macromolecules represented by formula (1-7-F1) was used instead of the polyacondensed ring conjugated macromolecule represented by formula (1-7-1).
The resulting I-V curve is shown in FIG. 4. The open circuit voltage V of the solar cell can be obtained by the I-V curve shown in FIG. 4 OC Is 0.84V, short-circuit current J SC Is 19.04mA · cm -2 The fill factor FF is 62% and the photoelectric conversion efficiency PCE is 9.92%.
Example 11
According to the method described in example 9, except that 1.5mg of the multiple-and condensed-ring conjugated macromolecule represented by the formula (1-7-5) was used instead of the multiple-and condensed-ring conjugated macromolecule represented by the formula (1-7-1), a solar cell was finally prepared and tested.
The resulting I-V curve is shown in FIG. 5. The open circuit voltage V of the solar cell can be obtained by the I-V curve shown in FIG. 5 OC 0.80V, short-circuit current J SC Is 20.46mA cm -2 The fill factor FF is 66% and the photoelectric conversion efficiency PCE is 10.80%.
Example 12
A solar cell was finally prepared and tested according to the method described in example 9, except that 1.5mg of the multiple fused ring conjugated macromolecule represented by formula (1-7-6) was used instead of the multiple fused ring conjugated macromolecule represented by formula (1-7-1).
The resulting I-V curve is shown in FIG. 6. The open circuit voltage V of the solar cell can be obtained by the I-V curve shown in FIG. 6 OC 0.87V, short-circuit current J SC Is 21.26mA · cm -2 The fill factor FF is 68% and the photoelectric conversion efficiency PCE is 12.58%.
Example 13
A solar cell was finally prepared and tested according to the method described in example 9, except that 1.5mg of the multiple fused ring conjugated macromolecule represented by formula (1-7-7) was used instead of the multiple fused ring conjugated macromolecule represented by formula (1-7-1).
The resulting I-V curve is shown in FIG. 7. The open circuit voltage V of the solar cell can be obtained by the I-V curve shown in FIG. 7 OC 1.00V, short-circuit current J SC Is 19.64mA · cm -2 The fill factor FF is 67% and the photoelectric conversion efficiency PCE is 13.16%.
Example 14
According to the method described in example 9, except that 1.5mg of the multiple-and condensed-ring conjugated macromolecule represented by the formula (1-9-5) was used instead of the multiple-and condensed-ring conjugated macromolecule represented by the formula (1-7-1), a solar cell was finally prepared and tested.
The resulting I-V curve is shown in FIG. 8. The open circuit voltage V of the solar cell can be obtained by the I-V curve shown in FIG. 8 OC 0.94V, short-circuit current J SC Is 17.06mA · cm -2 The fill factor FF is 66% and the photoelectric conversion efficiency PCE is 10.58%.
Example 15
This example serves to illustrate a perovskite solar cell of the present invention.
Indium Tin Oxide (ITO) glass (purchased from Shenzhen glass float glass Co., ltd.) as a cathode is cleaned by a detergent, then sequentially cleaned by deionized water, acetone and isopropanol in an ultrasonic manner, and then dried and coated with a 30 nm-thick SnO layer in a spin coating manner 2 And annealing the electron transport layer at 150 ℃ for 30 minutes for later use.
0.25mg of the poly-fused ring conjugated macromolecule represented by the above formula (1-7-5) was dissolved in 1mL of DMF, and 500mg of PbI was added 2 Then spin-coating the uniformly mixed solution on the electron transport layer, annealing at 70 ℃ for 20 minutes, cooling, spin-coating the iodoformamidine (FAI)/iodomethylamine (MAI) 2:1) mixed solution on the electron transport layer, annealing at 150 ℃ for 15 minutes to obtain the multi-fused ring conjugated macromolecule (1-7-5) doped perovskite layer, and finally spin-coating 80mg/mL 2,2',7,7' -tetra [ N, N-di (4-methoxyphenyl) amino]-9,9' -spirobifluorene (spiro-OMeTAD) solution as hole transport layer. Vacuum (absolute pressure 2X 10) on the active layer -5 Pa) and depositing metal Ag with the thickness of about 150nm as an anode of the solar cell.
A solar light source was simulated with an AM1.5 filter (model SAN-EI ELECTRIC Co., ltd., XES-70S 1) at 100mW/cm 2 The devices were tested for photovoltaic performance at light intensity calibrated by standard single crystal silicon solar cells (available from VLSI Standards Inc). The resulting I-V curve was measured using B2912A Precision Source/Measure Unit (Agilent Technologies) and controlled by computer using Labview software.
The resulting I-V curve is shown in FIG. 9. The open circuit voltage V of the solar cell can be obtained by the I-V curve shown in FIG. 9 OC 1.07V, short circuitStream J SC Is 23.70 mA.cm -2 The fill factor FF is 79% and the photoelectric conversion efficiency PCE is 20.13%.
Comparative example 1
A solar cell was finally prepared and tested according to the method described in example 9, except that 1.5mg of the compound represented by formula (GK) (prepared by the method described in reference j.am.chem.soc.2017,139, 4929) was used instead of the poly-fused ring conjugated macromolecule represented by formula (1-7-1).
The resulting I-V curve is shown in FIG. 10. The open circuit voltage V of the solar cell can be obtained by the I-V curve shown in FIG. 10 OC 0.92V, short-circuit current J SC Is 16.45mA · cm -2 The fill factor FF is 56% and the photoelectric conversion efficiency PCE is 8.54%.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.

Claims (20)

1. A multiple-fused ring conjugated macromolecule, wherein the conjugated macromolecule is a compound represented by the following formula (1):
Figure FDF0000019017880000011
the compound shown in the formula (1) is selected from compounds shown in formulas (1-7);
Figure FDF0000019017880000012
wherein the two groups a are each independently selected from the following structures:
the radical A-5 is
Figure FDF0000019017880000013
Group A-6 is->
Figure FDF0000019017880000014
Each R is 2 Each independently selected from the group consisting of
Figure FDF0000019017880000015
A group shown; each R is 3 Are each independently selected from the group consisting of>
Figure FDF0000019017880000016
A group shown; each R is 1 Are each independently selected from the group consisting of>
Figure FDF0000019017880000017
A group shown;
each Z is independently selected from C, N, si and Ge;
each X and each Y is independently selected from O, S or Se; j is 1; k is 1;
m is an integer of 0 to 6; n is an integer of 0 to 6; p is an integer of 0 to 6;
each R is 6 -R 10 Each independently selected from H, halogen, C1-C30 alkyl, C1-C30 alkoxy, C1-C30 alkylthio and C6-C30 aryl.
2. The polya-fused ring conjugated macromolecule of claim 1, wherein each Z is independently selected from C, N and Si; each X and each Y is independently selected from O and S; m is an integer of 0 to 4; n is an integer of 0 to 4; p is an integer of 0 to 4; each R is 6 -R 10 Each independently selected from H, halogen, C1-C20 alkyl, C1-C20 alkoxy, C1-C20 alkylthio and C6-C24 aryl.
3. The polya-fused ring conjugated macromolecule of claim 2, wherein each R is 7 -R 8 And each R 10 Each independently selected from H, halogen, C1-C10 alkyl, C1-C10 alkoxy, C1-C10 alkylthio and C6-C12 aryl; each R is 6 And each R 9 Each independently selected from H, halogen, C4-C15 alkyl, C4-C15 alkoxy, C4-C15 alkylthio and C6-C12 aryl.
4. The multiple fused ring conjugated macromolecule of claim 3, wherein each Z is selected from C; each R is 7 -R 8 And each R 10 Each independently selected from H, F, cl, br, I, methyl, ethyl, n-propyl, n-butyl, methoxy, ethoxy, n-propoxy, n-butoxy, methylthio, ethylthio, n-propylthio and n-butylthio; each R is 6 And each R 9 Each independently selected from the group consisting of H, n-butyl, n-pentyl, n-hexyl, n-octyl, 2-ethylhexyl, n-butoxy, n-pentoxy, n-hexoxy, n-octoxy, 2-ethylhexoxy, n-butylthio, n-pentoxy, n-hexoxy, n-octoxy, and 2-ethylhexoxy.
5. The multiple fused ring conjugated macromolecule of claim 1, wherein the multiple fused ring conjugated macromolecule is one of the compounds shown in the following formulae:
formula (1-7-6): in the formula (1-7), Z is C, A is a group A-5,R 3 Is absent, R 1 Are all made of
Figure FDF0000019017880000021
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure FDF0000019017880000022
And R is 9 Is n-hexyl;
formula (1-7-7): in the formula (1-7), Z is C, A is a group A-6,R 3 Is absent, R 1 Are all made of
Figure FDF0000019017880000023
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure FDF0000019017880000024
And R is 9 Is n-hexyl;
6. a multiple fused ring conjugated macromolecule, wherein the conjugated macromolecule is a compound represented by the following formula (1-9):
formula (1-9)
Figure FDF0000019017880000025
Wherein the two groups a are each independently selected from the following structures:
Figure FDF0000019017880000031
each R is 2 Each independently selected from the group consisting of
Figure FDF0000019017880000032
A group shown; each R is 3 Are each independently selected from the group consisting of>
Figure FDF0000019017880000033
A group shown; each R is 1 Are each independently selected from the group consisting of>
Figure FDF0000019017880000034
A group shown;
each Z is independently selected from C, N, si and Ge;
each X, each X', and each Y is independently selected from O, S or Se;
j is 0 to 6; k is 0 to 6;
m is an integer of 0 to 6; n is an integer of 0 to 6; p is an integer of 0 to 6;
each R is 4 -R 10 Each independently selected from H, halogen, C1-C30 alkyl, C1-C30 alkoxy, C1-C30 alkylthio and C6-C30 aryl.
7. The polya-fused ring conjugated macromolecule of claim 6, wherein: the group A-1 is
Figure FDF0000019017880000035
Group A-2 is>
Figure FDF0000019017880000036
Group A-3 is->
Figure FDF0000019017880000037
Group A-4 is->
Figure FDF0000019017880000038
Group A-5 is->
Figure FDF0000019017880000041
Group A-6 is>
Figure FDF0000019017880000042
The polycyclic and fused ring conjugated macromolecule is one of the compounds shown in the following formula:
formula (1-9-1): in the formula (1-9), Z is C, A is group A-1,R 3 Is absent, R 1 Are all made of
Figure FDF0000019017880000043
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure FDF0000019017880000044
And R is 9 Is n-hexyl;
formula (1-9-2): in the formula (1-9), Z is C, A is the group A-2,R 3 Is absent, R 1 Are all made of
Figure FDF0000019017880000045
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure FDF0000019017880000046
And R is 9 Is n-hexyl;
formula (1-9-3): in the formula (1-9), Z is C, A is group A-3,R 3 Is absent, R 1 Are all made of
Figure FDF0000019017880000047
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure FDF0000019017880000048
And R is 9 Is n-hexyl;
formula (1-9-4): in the formula (1-9), Z is C, one A is a group A-2, and the other A is a group A-3,R 3 Is absent, R 1 Are all made of
Figure FDF0000019017880000049
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure FDF00000190178800000410
And R is 9 Is n-hexyl;
formula (1-9-5): in the formula (1-9), Z is C, A is group A-4,R 3 Is absent, R 1 Are all made of
Figure FDF00000190178800000411
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure FDF00000190178800000412
And R is 9 Is n-hexyl;
formula (1-9-6): in the formula (1-9), Z is C, A is group A-5,R 3 Is absent, R 1 Are all made of
Figure FDF00000190178800000413
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure FDF00000190178800000414
And R is 9 Is n-hexyl;
formula (1-9-7): in the formula (1-9), Z is C, A is group A-6,R 3 Is absent, R 1 Are all made of
Figure FDF00000190178800000415
And R is 6 Is 2-ethylhexyl, R 2 Are all->
Figure FDF00000190178800000416
And R is 9 Is n-hexyl.
8. A method of preparing a poly-fused ring conjugated macromolecule of any one of claims 1-7, comprising:
subjecting a compound represented by the following formula (2) and a compound represented by the formula (a) to a dehydration condensation reaction in the presence of a basic compound and in an organic solvent to obtain a compound represented by the formula (1); wherein,
formula (2)
Figure FDF0000019017880000051
Formula (a) is selected from one or more of the following compounds:
Figure FDF0000019017880000052
9. the method of claim 8, wherein the molar ratio of the compound of formula (2) to the compound of formula (a) is 1:2-100.
10. The method of claim 8 or 9, wherein the conditions of the dehydration condensation reaction comprise: the temperature is 20-100 deg.C, and the time is 10min-48h.
11. The method of claim 8, wherein the basic compound is one or more of piperidine, pyridine, and triethylamine.
12. The method according to claim 11, wherein the basic compound is used in an amount of 0.1 to 1000mmol relative to 1mmol of the compound represented by formula (2).
13. The method of claim 11, wherein the organic solvent is chloroform and/or dichloromethane.
14. A photovoltaic material or a photodetecting material comprising one or more of the multiple fused ring conjugated macromolecules of any one of claims 1-7.
15. A solar cell in which the photovoltaic material comprises a poly-fused ring conjugated macromolecule as claimed in any one of claims 1 to 7.
16. The solar cell of claim 15, wherein, when the cell is an organic solar cell comprising a light-trapping active layer, the electron donor material and/or the electron acceptor material in the light-trapping active layer comprises one or more of the multiple fused-ring conjugated macromolecules;
when the cell is a perovskite solar cell comprising an electron transport layer, a perovskite light trapping layer and a modification layer, the light trapping layer and/or the electron transport layer and/or the modification layer contain one or more of the multiple fused ring conjugated macromolecules.
17. A method of manufacturing a solar cell according to claim 15 or 16, the method comprising: and configuring the poly-condensed ring conjugated macromolecule in the light trapping layer and/or the electron transport layer and/or the modification layer.
18. The method of claim 17, wherein, for organic solar cells, the photovoltaic material-containing layer is a light-trapping active layer;
for perovskite solar cells, the photovoltaic material containing layer is a light trapping layer and/or an electron transporting layer and/or a modifying layer.
19. A photodetector comprising a light trapping active layer, wherein an electron donor material and/or an electron acceptor material in the light trapping active layer comprises one or more of the multiple fused ring conjugated macromolecules of any one of claims 1-7.
20. A method of making a photodetector, comprising using an electron donor material and/or an electron acceptor material comprising one or more of the polya-fused ring conjugated macromolecules of any of claims 1-7 to form a light trapping active layer.
CN201710286150.7A 2017-04-27 2017-04-27 Multi-fused ring conjugated macromolecule and preparation method and application thereof Active CN108794504B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710286150.7A CN108794504B (en) 2017-04-27 2017-04-27 Multi-fused ring conjugated macromolecule and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710286150.7A CN108794504B (en) 2017-04-27 2017-04-27 Multi-fused ring conjugated macromolecule and preparation method and application thereof

Publications (2)

Publication Number Publication Date
CN108794504A CN108794504A (en) 2018-11-13
CN108794504B true CN108794504B (en) 2023-04-07

Family

ID=64069685

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710286150.7A Active CN108794504B (en) 2017-04-27 2017-04-27 Multi-fused ring conjugated macromolecule and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN108794504B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102655911B1 (en) * 2019-01-25 2024-04-08 주식회사 엘지화학 Heterocyclic compound, organic electronic device comprising the same and method for manufacturing organic electronic device using the same
KR102629144B1 (en) * 2019-02-14 2024-01-24 주식회사 엘지화학 Heterocyclic compound and organic electronic device comprising the same
CN109824694B (en) * 2019-03-19 2022-01-21 苏州大学 A-D-A conjugated molecule of hepta-condensed ring unit based on benzodifuran, and preparation method and application thereof
KR102635061B1 (en) * 2019-03-20 2024-02-07 주식회사 엘지화학 Heterocyclic compound and organic electronic device comprising the same
KR102639497B1 (en) * 2019-04-09 2024-02-21 주식회사 엘지화학 Heterocyclic compound and organic electronic device comprising the same
KR102639496B1 (en) * 2019-04-09 2024-02-21 주식회사 엘지화학 Heterocyclic compound and organic electronic device comprising the same
KR102710170B1 (en) * 2019-04-10 2024-09-25 주식회사 엘지화학 Heterocyclic compound and organic electronic device comprising the same
CN112390813B (en) * 2019-08-16 2022-06-03 位速科技股份有限公司 Non-fullerene electron acceptor material and organic photovoltaic cell
CN110818725B (en) * 2019-10-30 2022-06-14 华南理工大学 Conjugated micromolecule based on multi-nitrogen heterocyclic ring and application of conjugated micromolecule in organic photoelectric device
CN113354663A (en) * 2020-03-06 2021-09-07 中国科学院福建物质结构研究所 Acceptor material containing nitrogen hetero-trapezoidal condensed ring, and preparation method and application thereof
CN111430544B (en) * 2020-03-16 2022-06-10 电子科技大学 Perovskite solar cell based on organic material mixed doping and preparation method thereof
CN112209946A (en) * 2020-09-15 2021-01-12 西安近代化学研究所 Benzo-dithiophene-containing hepta-condensed ring main chain twisted small-molecule near-infrared absorption material, and preparation method and application thereof
CN112876874B (en) * 2021-01-21 2022-02-18 华中科技大学 Merocyanine dye with triphenylamine as donor, and preparation method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106467547A (en) * 2016-08-30 2017-03-01 苏州大学 Polycyclic-based non-fullerene solar cell receptor material and preparation method and application thereof
CN107011361A (en) * 2017-03-13 2017-08-04 南开大学 Organic photoelectric acceptor material and its preparation method and application

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106467547A (en) * 2016-08-30 2017-03-01 苏州大学 Polycyclic-based non-fullerene solar cell receptor material and preparation method and application thereof
CN107011361A (en) * 2017-03-13 2017-08-04 南开大学 Organic photoelectric acceptor material and its preparation method and application

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A fused thieno[3,2-b]thiophene-dithiophene based donor molecule for organic photovoltaics: a structural comparative study with indacenodithiophene;Yuichiro Abe et al.;《Journal of Materials Chemistry C》;20160914;第4卷;9656-9663 *

Also Published As

Publication number Publication date
CN108794504A (en) 2018-11-13

Similar Documents

Publication Publication Date Title
CN108794504B (en) Multi-fused ring conjugated macromolecule and preparation method and application thereof
CN108164547B (en) Poly-fused ring conjugated macromolecule and preparation method and application thereof
CN108623614B (en) Conjugated molecule based on multi-combined five-membered ring and preparation method and application thereof
CN110128633B (en) Preparation method and application of low-HOMO energy level polymer donor material
CN106905344B (en) Based on seven simultaneously LARGE CONJUGATE MOLECULES of condensed ring unit and preparation method thereof and applications in solar cells
CN111777622A (en) Micromolecule donor material based on terminal alkyl chain isomerization as well as preparation and application thereof
CN104086561A (en) Soluble organic photovoltaic micromolecule material with high fill factor, preparation method and application of material
CN109293693B (en) Novel dithieno-silicon heterocyclic cyclopentadiene organic solar cell receptor material and preparation method and application thereof
CN105017264A (en) Organic small molecular photoelectric functional material, and preparation method thereof
CN109517142B (en) Star-shaped D-A structure conjugated molecule based on tri-indeno five-membered aromatic heterocycle, and preparation method and application thereof
CN111187280B (en) Doping-free hole transport material based on indeno [1,2-b ] carbazole and synthetic method and application thereof
CN109956955B (en) Star-shaped D-A structure conjugated molecule based on benzo-tri (cyclopenta-bi-pentabasic aromatic heterocycle), and preparation method and application thereof
CN108084409B (en) Wide-band-gap organic semiconductor material and preparation method and application thereof
CN112961169B (en) Imide compound, preparation method thereof and application of perovskite solar cell
CN108659020A (en) The organic photovoltaic cell of narrow band gap electron acceptor material and its composition
CN116375732B (en) Non-fullerene acceptor material and preparation method and application thereof
CN110544743B (en) Efficient porphyrin material-based ternary organic solar cell and preparation method thereof
CN109390469B (en) Application of multi-fused ring conjugated macromolecules in perovskite solar cell
CN109824694A (en) The A-D-A conjugated molecule and its preparation method and application of seven and condensed ring unit based on two furans of benzo
CN109232527A (en) The organic photovoltaic cell of self-doping type fullerene pyridiniujm electron transport material and its composition
CN110386943B (en) Two-dimensional condensed ring conjugated macromolecule and preparation method and application thereof
CN111138454B (en) Hole transport material based on indeno [1,2-b ] carbazole and preparation method and application thereof
CN107785446B (en) Photovoltaic active composition, solar cell and preparation method thereof
CN111153914B (en) Asymmetric hole transport material and preparation method and application thereof
CN111171046B (en) Doping-free hole transport material based on tetrathienopyrrole and synthetic method and application 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
GR01 Patent grant
GR01 Patent grant