WO2007129768A1 - フラーレン誘導体を含む光電変換材料 - Google Patents
フラーレン誘導体を含む光電変換材料 Download PDFInfo
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- WO2007129768A1 WO2007129768A1 PCT/JP2007/059811 JP2007059811W WO2007129768A1 WO 2007129768 A1 WO2007129768 A1 WO 2007129768A1 JP 2007059811 W JP2007059811 W JP 2007059811W WO 2007129768 A1 WO2007129768 A1 WO 2007129768A1
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- photoelectric conversion
- conversion material
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- substituent
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- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000001226 reprecipitation Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- JWHOQZUREKYPBY-UHFFFAOYSA-N rubonic acid Natural products CC1(C)CCC2(CCC3(C)C(=CCC4C5(C)CCC(=O)C(C)(C)C5CC(=O)C34C)C2C1)C(=O)O JWHOQZUREKYPBY-UHFFFAOYSA-N 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 239000002094 self assembled monolayer Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 125000001973 tert-pentyl group Chemical group [H]C([H])([H])C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000004832 voltammetry Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- BMDAASXALYXZSG-UHFFFAOYSA-M zinc;ethyl acetate;bromide Chemical compound Br[Zn+].CCOC([CH2-])=O BMDAASXALYXZSG-UHFFFAOYSA-M 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F17/00—Metallocenes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F17/00—Metallocenes
- C07F17/02—Metallocenes of metals of Groups 8, 9 or 10 of the Periodic System
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/30—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising bulk heterojunctions, e.g. interpenetrating networks of donor and acceptor material domains
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/20—Carbon compounds, e.g. carbon nanotubes or fullerenes
- H10K85/211—Fullerenes, e.g. C60
- H10K85/215—Fullerenes, e.g. C60 comprising substituents, e.g. PCBM
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/331—Metal complexes comprising an iron-series metal, e.g. Fe, Co, Ni
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
Definitions
- Photoelectric conversion materials including fullerene derivatives
- the present invention relates to a photoelectric conversion material containing a fullerene derivative, a photoelectric conversion element having a monomolecular film in which the photoelectric conversion material is self-organized, and a solar cell having the photoelectric conversion element.
- fullerene a method for synthesizing carbon clusters (hereinafter also referred to as “fullerenes”) formed by arranging carbon atoms in a spherical or rugby ball shape.
- fullerenes a method for synthesizing carbon clusters formed by arranging carbon atoms in a spherical or rugby ball shape.
- fullerene derivatives have a widely extended ⁇ -electron system.
- the fullerene derivative has a relatively small HOMO-L UMO gap (about 1.5 to 2.0 eV), and has a light absorption characteristic in a wide wavelength range and a highly efficient singlet-to-triplet term. It has a characteristic that it has a light emission characteristic via an intersection.
- fullerene is composed of only carbon atoms, but exhibits a multi-step reversible redox reaction (6-electron reduction). Due to these characteristics, fullerene derivatives can be used in a wide range of applications. For example, FETs, organic EL, solar cells, and catalysts can be used.
- fullerene derivatives with extremely high quantum efficiency of photocurrent generation are required.
- solar cells with high power generation efficiency There is also a need for solar cells with high power generation efficiency.
- the present inventors have found a derivative having a high quantum efficiency of photocurrent generation from among the fullerene derivatives that are relatively easy to synthesize, and have completed the present invention based on this finding.
- the present invention provides a photoelectric conversion material containing the following fullerene derivative, a photoelectric conversion element having a monomolecular film in which the photoelectric conversion material is self-organized, and a solar battery having the photoelectric conversion element.
- each R 1 independently represents an organic group having a substituent
- M represents a metal atom
- L is a ligand of M
- n is the number of L.
- a photoelectric conversion material comprising a fullerene derivative represented by:
- each R 1 is preferably independently an organic group containing a carboxylic acid group.
- M is preferably Fe or Ru.
- a solar cell comprising the photoelectric conversion element according to [2].
- R 1 s independently have a carboxylic acid group, a phosphoric acid group, a phosphonic acid group, or —Si 0 3 , Ci Cg. Hydrocarbon group, Ci Cso alkoxy group, c 6 to c
- Y 1 represents a Ci C alkyl group which may have a substituent.
- Ariruchio group (_ SY 2, wherein, Y 2 is shows a good c 6 to c 8 Ariru group which may have a substituent to.)
- An alkylsulfonyl group (_S O 2 Y 3, wherein, Y 3 is an optionally substituted Ci Cg. Represents an alkyl group.)
- an arylsulfonyl group one SO 2 Y 4 where Y 4 may have a substituent c 6 to c 18 Indicates an aryl group.
- M represents a metal atom.
- R 1 each independently has a carboxylic acid group, a phosphoric acid group, a phosphonic acid group, or —Si 3 , c 1 to c 3 .
- Rukiruariru group, c 7 ⁇ c 3. reel alkyl group, a C 4 -C 3Q cycloalkyl group or C 4 -C 3Q Shikuroaruke two group, a photoelectric conversion material according to [4].
- each R 1 independently represents an organic group containing a carboxylic acid group.
- M is preferably Fe or Ru.
- each R 2 independently represents the following formula (A)
- X 1 is shown a carboxylic acid group, a phosphoric acid group, a phosphonic acid group or a S io 3
- M represents a metal atom
- R 2 ° represents an organic group independently
- n represents 0 It is an integer of 4.
- M represents a metal atom.
- a photoelectric conversion material comprising a fullerene derivative represented by:
- X 1 is preferably each independently a carboxylic acid group, n is preferably 0, and X 1 is preferably in the para position.
- each R 3 independently represents the following formula (B)
- X 1 represents a carboxylic acid group, a phosphoric acid group, a phosphonic acid group or _ S io 3,
- M represents a metal atom
- R 2 ° each independently represents an organic group
- n is an integer from 0 to 4
- m is an integer from 0 to 4.
- M represents a metal atom.
- a photoelectric conversion material comprising a fullerene derivative represented by:
- X 1 is shown a carboxylic acid group, a phosphoric acid group, a phosphonic acid group or a S io 3, M represents a metal atom, R 2 ° represents an organic group independently, n represents 0 It is an integer of 4, and m is an integer of 0 to 4. It is preferably a group represented by In formula (B) or formula (B 1), X 1 preferably independently represents a carboxylic acid group, n and m are each preferably 0, and X 1 is preferably in the para position.
- a photoelectric conversion element wherein the photoelectric conversion material according to any one of [4] to [8] has a self-assembled monomolecular film.
- a solar cell comprising the photoelectric conversion element according to [9] or [1 0].
- R 1 independently has a thiol group or a disulfide group, C! To C 3 . Hydrocarbon group, ⁇ ⁇ . Alkoxy group, C 6 ⁇ C 3.
- ⁇ 3 represents an optionally substituted alkyl group.
- ⁇ reel sulfonyl group one S_ ⁇ 2 Y 4,: in the formula, Y 4 is shown a.
- a photoelectric conversion material comprising a fullerene derivative represented by:
- Each R 1 independently has a thiol group or a disulfide group, an alkyl group, C 2 to C 3 . Alkenyl group, C 2 ⁇ C 3. Alkyl group, C 4 -C
- a solar cell comprising the photoelectric conversion element according to [14] or [15].
- a photoelectric conversion material with extremely high quantum efficiency of photocurrent generation can be provided.
- a photoelectric conversion material including a fullerene derivative that can be easily synthesized and having extremely high quantum efficiency of photocurrent generation can be provided.
- the photoelectric conversion element according to a preferred embodiment of the present invention has high quantum efficiency.
- the solar cell according to a preferred embodiment of the present invention can generate power efficiently and can be manufactured at a low cost.
- Figure 1 shows the mechanism of photoelectric conversion using a photoelectric conversion element.
- Figure 2 shows the mechanism of photoelectric conversion using a photoelectric conversion element.
- the fullerene derivative obtained by the production method of the present invention is C 6 . (R l ) 5 (MLn) [wherein R 1 independently represents an organic group having a substituent,
- M represents a metal atom
- L is a ligand of M
- n is the number of L.
- it is a fullerene derivative represented by the above formula (1).
- each R 1 independently represents an organic group having a substituent.
- R 1 may independently have a hydrogen atom or a substituent C to C 3 . It may have a hydrocarbon group or a substituent ⁇ ⁇ .
- C 6 -C 3 which may have an alkoxy group or a substituent.
- An aryloxy group, an amino group which may have a substituent, a silyl group which may have a substituent, an alkylthio group which may have a substituent (wherein Y 1 has a substituent) May represent ⁇ to represent an alkyl group.
- An arylothio group which may have a substituent one SY 2 , wherein Y 2 may have a substituent; C 6 to C 18 aryl) a group.
- which may have a substituted or unsubstituted alkylsulfonyl group an S0 2 Y 3, wherein, Y 3 may have a substituent
- An alkyl group is shown.
- R 1 is a carboxylic acid group, a phosphoric acid group, a phosphonic acid group, one SiO 3 , a thiol group, a disulfide group, an ester group, an amid group, an alkyne group, a trimethylsilyl group, or a trimethylsilylethynyl group.
- R 1 preferably has one or more substituents selected from the group consisting of a carboxylic acid group, a phosphoric acid group, a phosphonic acid group, one sio 3 , a thiol group, and a disulfide group.
- M is not particularly limited as long as it is a metal atom, and may be a typical metal or a transition metal.
- Specific examples of M include typical metals such as Li, K, Na, Mg, A1, Ti, Zr, V, Cr, Mo, W, Mn, Re, Fe, Ru, Os , Rh, Ir, Ni, Pd, Pt, Cu, Zn, and other transition metals.
- M is a transition metal because an electronic property based on oxidation-reduction behavior peculiar to the metal is imparted to the fullerene skeleton.
- transition metals of group 8 to 10 such as Fe, Ru, Os, Rh, Ir, Ni, Pd, and Pt are preferable, and group 8 of Fe, Ru, Os, etc. are preferable. Transition metals are preferred, with Fe or Ru being particularly preferred.
- n is the number of L (the ligand of M) and is not particularly limited as long as it is a number less than or equal to a possible integer as the number of ligands of M and 0 or more. It is preferably an integer of 5.
- L is 2 or more, the ligands L may be the same as or different from each other.
- L represents a hydrogen atom, a halogen atom such as Cl, Br, or I, an alkoxy group such as a methoxy group or an ethoxy group, an alkyl group such as a methyl group or an ethyl group, a carbonyl group, or an alkyne group. Or it is preferable that it is a squeezed pentagenyl group.
- each R 1 is independently a carboxylic acid group, a phosphoric acid group, Having a phosphonic acid group or one S i 0 3 ,. Hydrocarbon group, Ci Cw alkoxy group, C 6 -C 3 .
- Aryloxy group, amino group, silyl group, alkylthio group (in the formula _SY, Y 1 may have a substituent) Indicates a group.
- Ariruchio group an SY 2, in the formula, Y 2 is a good C 6 -C 18 7 aryl group which may have a substituent group), an alkylsulfonyl group (-. S_ ⁇ 2 Y 3, wherein, Y 3 may have a substituent ⁇ ⁇ represents an alkyl group.
- aryl reel group one SO 2 Y 4 , where Y 4 may have a substituent c 6 to c 18 shows the Ariru group.
- R 1 is independently a carboxylic acid group, phosphoric acid group, a phosphonic acid group or _ S i O 3, C 1 ⁇ C. . Alkyl group, C 2 ⁇ C 3.
- each R 1 is independently
- X 1 represents a carboxylic acid group, a phosphoric acid group, a phosphonic acid group, or one Si 3
- ⁇ represents a metal atom
- R 2 ° each independently represents an organic group
- ⁇ represents 0.
- An integer of ⁇ 4 or a group represented by
- X 1 is a carboxylic acid group, a phosphoric acid group, M indicates a phosphonic acid group or a S io 3 represents a metal atom, R 2 ° represents an organic group independently, n represents 0-4 M is an integer from 0 to 4.
- Equation (A) is
- each X 1 independently represents a carboxylic acid group, a phosphoric acid group, a phosphonic acid group, a single Si 0 3 thiol group or a disulfide group.
- each X 1 independently represents a carboxylic acid group, a phosphoric acid group, a phosphonic acid group, a 1-si 0 3 thiol group or a disulfide group.
- the group represented by the formula is particularly preferred.
- rCi Cs The hydrocarbon group of “hydrocarbon group” may be a saturated or unsaturated acyclic group, or a saturated or unsaturated cyclic group.
- Ci C hydrocarbon group When the Ci C hydrocarbon group is acyclic, it may be linear or branched.
- Alkyl groups and the like are included.
- ji-ji alkyl group is. It is preferably an alkyl group, more preferably a ⁇ 6 alkyl group.
- alkyl groups include, but are not limited to, methyl, ethyl, propyl, isopropyl Nole, n-Pintinole, sec-Butinole, tert-Butinole, Pentinole, Hexinole, Dodecanyl and the like.
- C 2 -C 3. Alkenyl group means Cs Ci. It is preferably an alkenyl group, and more preferably a C 2 to C 6 alkenyl group.
- alkenyl groups include, but are not limited to, bur, allyl, propenyl, isopropenyl, 2-methyl-11-propenyl, 2-methinorealyl, 2-buteninole and the like. .
- C 2 -C 3. Alkynyl group Cz C. It is preferably an alkynyl group, more preferably a c 2 to c 6 alkyl group.
- alkyl groups include, but are not limited to, ethynyl, probule, and petityl.
- C 4 -C 3. Alkylgenyl group is C Ci. Is preferably an alkyl Jeniru group, C 4 -C 6 is a further preferably an alkyl Genis Le group. Examples of alkylgenyl groups include, but are not limited to, 1,3-butagenyl and the like.
- C 6 -C 18 7 aryl group means, Ce Ci.
- An aryl group is preferred. Examples of aryl groups include, but are not limited to, phenyl, 1-naphthyl, 2-1-naphthyl, indeninole, bihuyurenore, anthryl, phenanthryl and the like.
- Alkylaryl group is preferably C 7 -C 12 alkylaryl group.
- alkylaryl groups include, but are not limited to, o-tolyl, m-tolyl, p-trinole, 2,3-xylyl, 2,4-monoxylinole, 2,5-xylyl, o-cumenyl, m_Tameel, ⁇ -Tameninole, mesityl and the like.
- Aryl alkyl group is preferably C 7 -C 12 aryl alkyl group.
- arylalkyl groups include, but are not limited to, benzyl, phenethyl, diphenylmethyl, triphenylmethylol, 1-naphthylmethyl, 21-naphthylmethyl, 2,2-diphenylethyl, 3 Examples thereof include 1-phenylpropynole, 4-1-phenylpentinole, 5-phenylpentyl and the like.
- Cycloalkyl group is c 4 to c.
- a cycloalkyl group is preferred. Examples of cycloalkyl groups include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and the like.
- Cycloalkenyl group refers to CC i.
- a cycloalkenyl group is preferred.
- Examples of cycloalkenyl groups include, but are not limited to, cyclopropenyl, cyclobutyr, cyclopentenyl, cyclohexenyl and the like.
- ⁇ alkoxy group means ⁇ ⁇ .
- An alkoxy group is preferred, and a CiCe alkoxy group is more preferred.
- alkoxy groups include, but are not limited to, methoxy, ethoxy, propoxy, butoxy, pentyloxy and the like.
- C 6 -C 3. Ariruokishi group ⁇ .
- An aryloxy group is preferred. Examples of aryloxy groups include, but are not limited to, phenyloxy, naphthyloxy, biphenyloxy, etc. 9
- an alkylthio group (—SY 1 wherein Y 1 is an alkyl group which may have a substituent)
- alkylsulfonyl group (—S 0 2 Y 3 , formula among, Upsilon 3 is Te.)
- odor showing a has be ⁇ .
- alkyl group substituents, Upsilon 1 and Upsilon 3 is ⁇ ⁇ . It is preferably an alkyl group, and more preferably a CC s alkyl group.
- alkyl groups include, but are not limited to, methinole, ethinole, propyl, isopropinole, n-butinole, sec-butinole tert-pentyl, pentyl, hexyl, dodecanyl, and the like.
- arylthio group (one SY 2 , wherein Y 2 represents a C 6 to C 18 aryl group which may have a substituent.)
- aryl sulfonyl group (one S0 2 Y In the formula, ⁇ 4 represents a C 6 to C 18 aryl group which may have a substituent.)
- Y 2 and Y 4 are:
- An aryl group is preferred.
- Example of aryl group Examples include, but are not limited to, phenyl, 1-naphthyl, 2-naphthyl, indenyl, biphenyl, anthryl, phenanthryl and the like. 2.
- the method for producing the fullerene derivative contained in the photoelectric conversion material of the present invention is not particularly limited.
- fullerenes represented by the following formula (2) are not particularly limited.
- R 4 represents an organic group
- X 2 represents a halogen atom
- R 5 represents an organic group
- X 3 represents a halogen atom
- the fullerene derivative can be synthesized by reacting the Grignard reagent (B) represented by the formula (B) and the organic copper reagent (C) prepared from a monovalent or divalent copper compound.
- the fullerene used in the method for producing a fullerene derivative of the present invention is, for example, fullerene C 6 . (So-called “Buckminster Fullerene”).
- the halogenated organic compound (A) used in the production method of the present invention is represented by the above formula (2).
- R 4 is not particularly limited as long as it is an organic group, but may have, for example, a substituent.
- Hydrocarbon group which may have a substituent -C 2.
- C 6 -C 2 which may have an alkoxy group or a substituent.
- Ariruokishi group an amino group which may have a location substituent, an optionally substituted silyl group, in even alkylthio group (an SY type have a substituent, Y 1 is a substituted group Have Also good ⁇ .
- An alkyl group is shown.
- An aryl group which may have a substituent (one SY 2 , wherein Y 2 represents a c 6 to c 18 aryl group which may have a substituent).
- An alkylsulfonyl group which may have (one SO 2 Y 3 ,
- Y 3 may have a substituent An alkyl group is shown. ), An arylenesulfonyl group which may have a substituent (one S0 2 Y 4 , wherein Y 4 represents a C 6 to C18 aryl group which may have a substituent). .
- R 4 is an ester group, a carboxyl group, an amide group, an alkyne group, a trimethylsilyl group, a trimethylsilylethynyl group, an aryl group, an amino group, a phosphor group, a thio group, or a force group. It can have a substituent containing a functional group such as a nitro group, a snorejo group, an imino group, a halogeno group or an alkoxy group.
- the halogenated organic compound preferably contains one or more functional groups selected from the group consisting of an ester group, an amide group, an alkyne group, a trimethylsilyl group, and an opalyl group.
- each functional group may be the same or different.
- X 2 represents a halogen atom.
- X 2 is C 1
- the Grignard reagent (B) used in the production method of the present invention is represented by the above formula (3).
- R 5 is not particularly limited as long as R 5 is an organic group having an inert substituent capable of adjusting the Grignard reagent.
- substituents include an alkyl group, an alkenyl group, an alkynyl group, an aralkyl group, and an aryl group.
- X 3 represents a halogen atom.
- X 3 is preferably Cl, Br or I among halogen atoms.
- Organic copper reagent (C) used in the production method of the present invention is not particularly limited as long as it is prepared from a monovalent or divalent copper compound.
- Cu Br ⁇ S (CH 3 ) 2 is preferably used as the organic copper reagent from the viewpoint that purification is easy and purity can be increased.
- additives such as N, N-dimethylimidazolidinone (DM I) and N-butylpyrrolidone (NBT) may be added for the purpose of stabilizing and improving the solubility of organocopper reagents. It can be used in a timely manner.
- DM I N, N-dimethylimidazolidinone
- NBT N-butylpyrrolidone
- the halogenated organic compound (A), the Grignard reagent (B) and the organocopper reagent (C) are used in an amount of 5 to 5 equivalents, preferably 10 to 20 equivalents, relative to fullerene.
- the mixing ratio (molar ratio) of the halogenated organic compound (A) and the Grignard reagent (B) used in the production method of the present invention is preferably in the range of 1: 0.8 to 1: 1, and the Grignard reagent (
- the mixing ratio (molar ratio) between B) and the organic copper reagent (C) is preferably in the range of 1: 0.8 to 0.8: 1.
- the reaction of fullerene, halogenated organic compound (A), Grignard reagent (B) and organocopper reagent (C) is generally It is carried out in an inert solvent such as toluene, tetrahydrofuran, dichlorobenzene, or a mixed solvent thereof.
- the reaction is preferably performed in a temperature range of 70 ° C. to 70 ° C., more preferably in a temperature range of 50 ° C. to 50 ° C.
- the reaction time depends on the solvent used, the temperature, and the like, but is generally several minutes to 5 hours, preferably about 10 minutes to 4 hours.
- the synthesis reaction of the fullerene derivative contained in the photoelectric conversion material of the present invention can be stopped by adding an aqueous ammonium chloride solution or the like to the reaction system.
- a fullerene derivative having a metal complex can be synthesized by substituting a metal atom or a metal-containing group for a hydrogen atom directly bonded to the fullerene skeleton.
- the substitution can be performed by a known method.
- a fullerene derivative is dissolved in an organic solvent and an organic metal (for example,
- the method for isolating the fullerene derivative from the reaction system for the synthesis reaction of the fullerene derivative contained in the photoelectric conversion material of the present invention is not particularly limited. For example, by passing the reaction solution as it is through a silica gel column, This is done by removing the product. If necessary, the purity of the fullerene derivative may be improved by further purifying the isolated material by means of HP LC or ordinary column chromatography.
- the substituent added to the fullerene skeleton by the synthesis reaction of the fullerene derivative of the present invention can be converted.
- a fullerene derivative to which a carboxyl group has been added is treated by adding a base such as NaH or NaOH to the fullerene derivative to which an ester group has been added as a substituent, obtained by the above synthesis reaction of a fullerene derivative It can be obtained by converting an ester group into a carboxyl group.
- a base such as NaH or NaOH
- the photoelectric conversion element of the present invention has a configuration in which a monomolecular film in which the photoelectric conversion material is self-organized is formed on a support.
- a conductive material such as a metal plate or a non-conductive material such as a glass plate or a plastic film provided with a conductive substance should be used. Can do.
- materials used for the support include metals (for example, platinum, gold, silver, copper, aluminum, rhodium, indium) or conductive metal oxides (for example, indium oxide composite oxide, tin oxide doped with fluorine) ) And carbon.
- the thickness of the support is not particularly limited, but is preferably 0.3 mm to 5 mm.
- the support is preferably substantially transparent.
- substantially transparent means that the light transmittance is 10% or more, more preferably 50% or more. Most preferably, it is 80% or more.
- a transparent support it is preferable to provide a conductive layer made of a conductive metal oxide on the surface of a glass plate or a plastic film.
- a transparent support When a transparent support is used, light is preferably incident from the support side.
- the surface resistance of the support is preferably 5 is 0 ⁇ / cm 2 or less, and more preferably ⁇ ⁇ ⁇ / cm 2 or less.
- a self-assembled film is a film in which a part of an organic compound constituting the film is bonded to a functional group on the surface of the substrate, which has very few defects and has high ordering or crystallinity. It is. Since this self-assembled film has a relatively simple manufacturing method, it can be easily formed on a substrate.
- the self-assembled monomolecular film of the present invention is obtained by bonding a part of the fullerene derivative constituting the film to the surface of a support such as an electrode.
- the bonding method to the surface of the support is not particularly limited. For example, by preparing a solution of fullerene derivative and immersing the surface-treated substrate, the monolayer of the self-assembled fullerene derivative is supported. A monomolecular film can be formed on the surface or without surface treatment.
- the support used for obtaining the photoelectric conversion element material of the present invention includes, for example, a surface-treated and conductive support having a charge opposite to the functional group of the fullerene derivative used. It is done.
- a preferred support on a glass substrate Examples thereof include an ITO electrode on which ITO is deposited and a gold electrode on which gold is deposited on a glass substrate.
- mercaptoethanesulfonic acid has a thiol moiety bonded to gold at one end and the other end at the other end.
- an aqueous solution of a compound having a thiol moiety and a cationic moiety at both ends is used in the same manner as in the case of a surface ion. Perform the operation.
- the surface can be treated to be ayuonic or cationic by exactly the same method as the gold electrode.
- R 1 in the fullerene derivative represented by the above formula (1) contained in the monomolecular film is each independently a force rubonic acid group, phosphorus It preferably has an acid group, a phosphonic acid group, or one S i 0 3, and more preferably, these substituents are bonded to the fullerene skeleton portion through a ⁇ -conjugated bond.
- R 1 in the fullerene derivative represented by the above formula (1) contained in the monomolecular film is independently a thiol group or disulfide. It is preferable to have a group, and it is more preferable that these substituents are bonded to the fullerene skeleton site through a ⁇ -conjugated bond.
- the photoelectric conversion element of the present invention has a monomolecular film formed on a support, but may have a multilayer structure in which other substances are laminated as necessary. Such a multilayer structure is generally obtained by sequentially immersing in a solution of a material having a charge opposite to the material of the outermost layer, according to a technique known as alternating lamination. 4.
- the solar cell of the present invention is not particularly limited as long as it is a solar cell including the photoelectric conversion element.
- a charge transfer layer is laminated on the monomolecular film of the photoelectric conversion element of the present invention, and this charge A battery in which a counter electrode is further formed on the moving layer can be given.
- a known charge transfer layer is used as the charge transfer layer of the solar cell of the present invention.
- the charge transfer layer of the solar cell of the present invention is composed of, for example, a redox electrolyte dispersion.
- This dispersion is called a liquid electrolyte when it is a solution, a solid polymer electrolyte when it is dispersed in a polymer that is solid at room temperature, and a gel electrolyte when it is dispersed in a gel-like substance.
- an electrochemically inert solvent is used, for example, acetonitrile, propylene carbonate, ethylene carbonate, or the like.
- examples of the redox electrolyte include an I—Z l 3 — system, a B r _ / Br 3 system, and a quinone hydride quinone system.
- Such a redox electrolyte can be obtained by a known method.
- an I 1 3 -based electrolyte can be obtained by mixing an ammonium salt of iodine and iodine.
- a specific example of the charge transfer layer used in the present invention is a liquid electrolyte that is an aqueous solution of sodium sulfate in which methyl biogen is dissolved.
- the counter electrode of the solar cell of the present invention may be any material as long as it has conductivity, and any conductive material can be used. However, it is sufficient to oxidize 1 3 —ion or the like and reduce other redox ions. Those having catalytic ability to be performed at high speed are preferable. Examples of such materials include a platinum electrode, a surface of a conductive material that has been subjected to platinum plating or platinum deposition, a dome metal, a ruthenium metal, a ruthenium oxide, and a vigorous bonbon. 5.
- the reaction product was diluted by adding 1 OmL of degassed toluene, and silica gel short with toluene as the developing solvent. By-product zinc salts and the like were removed through the pass.
- the solvent was distilled off, 100 mL of methanol was added to reprecipitate the solid, and the resulting solid was filtered and washed with methanol to give 2.94 g of the 5-adduct C 6 . (C 6 H 2 COOE t—4) 5 H was obtained (isolation yield 92 ° / 0 ).
- APCI-MS (-): m / z 1586 (M—).
- APCI-HRMS (-): calcd for C100H50Ru010 (M-H +) 1632.2447, found 1632.2420. Resulting R u C 60 (C 6 H 4 COOE t— 4) 5 C p (22.8 mg, 0.0 1 4 0 mm o 1) dissolved in toluene (7 mL) and methanol in sodium hydroxide The solution (0.5M, 0.28 mL, 0.14 mm o 1) was added, and the mixture was stirred at 60 ° C for 30 minutes. After cooling, the deposited precipitate was filtered and washed with hexane.
- NMR and APCI-MS analysis data of the obtained product are shown below.
- APCI-HRMS (1) calcd for C140H70Ru010 (M-) 2012.40124, found2012.40985. Obtained Ru C 60 (B i P h COOE t— 4) 5 C p (4 7. 2 mg, O. 02 4 Dissolve mm o 1) in toluene (1 OmL), and dissolve the methanolic methanol solution of sodium hydroxide (0.5 M, 0.4 7 mL, 0.24 mm o 1) 60. Stir at C for 1 hour. After cooling, the deposited precipitate was filtered and washed with hexane. This solid is treated with IN hydrochloric acid (3 mL), washed with water and dried to give Ru C 6 represented by the following formula (2 3). (B i P h COOH-4) 5 Cp of solid 35.3 mg was obtained (yield 81%).
- Example 2 The photoelectric conversion element fullerene using fullerene derivative obtained in Synthesis Example 3 Derivative Ru C 6 obtained in Synthesis Example 3 as a derivative As in Example 1, except that (C 6 H 4 COOH -4) 5 C p was used, a self-assembled monolayer was formed on ITO. Then, the number of molecules immobilized on the electrode ( ⁇ ) was measured to be 0.1 nmo 1 cm ⁇ 2 , as in Example 1.
- Example 3 Photoelectric conversion device using the fullerene derivative obtained in Synthesis Example 4
- the derivative F e C 60 (B i P h COO H-4) 5 C p used in Synthesis Example 4 was used.
- a self-assembled monomolecular film was produced on ITO to produce a photoelectric conversion element.
- the number of molecules immobilized on the electrode ( ⁇ ) was measured in the same manner as in Example 1, it was 0.08 nm o 1 c ⁇ 2 .
- Example 4 Photoelectric Conversion Element Using Fullerene Derivative Obtained in Synthesis Example 5
- Example 1 Fe C 6 obtained in Example 1 as a working electrode.
- C 6 H 4 C OOH- 4 A photoelectric conversion element in which a monomolecular film self-assembled with 5 C p is laminated, using platinum wire as the counter electrode, and 0.1 mol sodium sulfate as the two electrodes.
- the electrolyte solution exists between the two electrodes and functions as a charge transfer layer.
- the absorbance (A) is 2. 3 4 X 1 0- 4, the photocurrent (i) is 1 1. 3 X 1 0- 9 A der ivy 0
- the quantum yield ( ⁇ ) representing the ratio of the number of electrons flown to the number of photons absorbed by the compound on ITo was determined to be 16%.
- i is the photocurrent (A)
- A is the absorbance at nm.
- ⁇ experiment Wavelength (m) 4 0 0 nm
- J s Planck's constant
- Photocurrent when applying a bias voltage to set the potential of the working electrode at a 0. 1 2 V (i) was 24. 0 X 1 0- 9 A.
- the quantum yield ( ⁇ ) at this time is 24% 7.
- Example 2 R u C 6 obtained in Example 2 as a working electrode.
- C 6 H 4 COOH- 4 A photoelectric conversion element in which monolayers of 5 C p are self-assembled are stacked, using a platinum wire as the counter electrode, and 0.1 mol sodium sulfate as the two electrodes.
- the solar cell of the present invention was manufactured by placing the solution in an electrolyte solution in which ascorbic acid (A s A) was dissolved as an electron donor. At this time, the electrolyte solution exists between the two electrodes and functions as a charge transfer layer.
- a s A ascorbic acid
- the working electrode potential was set to 0 V and the solar cell was irradiated with monochromatic light from a Xe lamp with a wavelength of 400 nm and an intensity of 407 W, an anode current was observed.
- the absorbance (A) is 2. 90 X 1 0- 4, the photocurrent (i) is 44. 0 X 1
- the quantum yield ( ⁇ ) which represents the ratio of the number of electrons that flowed to the number of photons absorbed by the compound on ITO, was calculated according to the above equation, and the value was 50%.
- the photocurrent (i) when the working electrode potential was set to 0.1 V and a bias voltage was applied was 88.0 ⁇ 1 0 -9 ⁇ .
- the quantum yield ( ⁇ ) at this time was 100%.
- a solar cell of the present invention was produced in the same manner as in Example 5 except that the photoelectric conversion element of Example 3 was used.
- the potential of the working electrode was set to 0 V, and the monochromatic light from the Xe lamp having a wavelength of 400 nm and an intensity of 40 07 W was irradiated to the solar cell, a force sword Current was observed.
- the absorbance (A) is a 1. 9 X 1 0- 4, the photocurrent (i) was 1 2. 0 X 1 ( ⁇ 9 ⁇ .
- the quantum yield ( ⁇ ) which represents the ratio of the number of electrons that flowed to the number of photons, was calculated according to the above formula and was found to be 21%.
- the potential of the working electrode - photocurrent when applying a bias voltage is set to 0. 1 2 V (i) was 2 1. 2 X 1 0- 9 A .
- the quantum yield ( ⁇ ) at this time is 37%.
- a solar cell of the present invention was produced in the same manner as in Example 6 except that the photoelectric conversion element of Example 4 was used.
- Example 6 when the potential of the working electrode was set to 0 V and the monochromatic light from the Xe lamp having a wavelength of 400 nm and an intensity of 40 07 W was irradiated to the solar cell, the anode Current was observed.
- the absorbance (A) is 1. 8 7 X 1 0- 4, the photocurrent (i) was 2 8. 0 ⁇ 1 ( ⁇ 9 ⁇ .
- the quantum yield ( ⁇ ) which represents the ratio of the number of electrons that flowed to the number of photons, was determined according to the above equation, and the value was 50%.
- the photocurrent (i) was 47.0 X 1 CT 9 A.
- the quantum yield ( ⁇ ) at this time was 83%.
- a solar cell of the present invention was produced in the same manner as in Example 5 except that the photoelectric conversion element of Example 4 was used. .
- Example 5 when the potential of the working electrode was set to 0 V and the monochromatic light from the Xe lamp having a wavelength of 40 0 ⁇ and an intensity of 4 0 7 was irradiated to the solar cell, the force sword current was Observed.
- the absorbance (A) is 1. 8 7 X 1 0- 4
- the photocurrent (1) was 1 9. 0 X 1 0- 9 A .
- the quantum yield ( ⁇ ) which represents the ratio of the number of electrons that flowed to the number of photons, was calculated according to the above equation and was found to be 34%.
- the photocurrent (i) was 3 2.3 X 1 CT 9 A when the bias voltage was applied with the working electrode potential set to 0.15 V.
- the quantum yield ( ⁇ ) at this time was 57%.
- a solar cell was produced in the same manner as in Example 6 except that the photoelectric conversion element of Comparative Example 1 was used.
- the working electrode potential was set to 0 V, and the monochromatic light from the Xe lamp having a wavelength of 400 nm and an intensity of 407 / xW was irradiated to the solar cell, an anode current was observed. It was.
- the absorbance (A) is a 5. 18 X 1 0- 4, the photocurrent (i) is 4. A 4 X 1 0- 9 A.
- the quantum yield ( ⁇ ) which represents the ratio of the number of electrons that flowed to the number of photons absorbed by the compound on ITO, was calculated using the above equation, and the value was 2.8%. .
- the photoelectric conversion element material and photoelectric conversion element obtained in the present invention can be used for, for example, an organic solar cell.
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JP2008222583A (ja) * | 2007-03-09 | 2008-09-25 | Japan Science & Technology Agency | フラーレン誘導体およびその製造方法 |
WO2009087948A1 (ja) * | 2008-01-09 | 2009-07-16 | Sumitomo Chemical Company, Limited | フラーレン誘導体を含む組成物およびそれを用いた有機光電変換素子 |
GB2463046A (en) * | 2008-08-29 | 2010-03-03 | Univ Surrey | Metal complexes comprising a fullerite |
JP2010270018A (ja) * | 2009-05-19 | 2010-12-02 | Japan Science & Technology Agency | フラーレン誘導体および当該誘導体を含む光電変換材料 |
WO2011016430A1 (ja) * | 2009-08-04 | 2011-02-10 | 三菱化学株式会社 | 光電変換素子及びこれを用いた太陽電池 |
JP2011054948A (ja) * | 2009-08-05 | 2011-03-17 | Mitsubishi Chemicals Corp | 光電変換素子材料、光電変換素子用電極バッファー材料ならびにこれを用いた光電変換素子 |
JP2011054947A (ja) * | 2009-08-04 | 2011-03-17 | Mitsubishi Chemicals Corp | 光電変換素子用電極バッファー材料ならびにこれを用いた光電変換素子 |
US10249823B2 (en) | 2017-07-12 | 2019-04-02 | Samsung Electronics Co., Ltd. | Fullerene derivatives and photoelectric devices and image sensors |
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EP2175502A4 (en) * | 2007-07-09 | 2011-08-10 | Mitsubishi Chem Corp | PHOTOELECTRIC TRANSFORMER AND SOLAR CELL WITH IT |
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WO2014190070A1 (en) * | 2013-05-22 | 2014-11-27 | Robinson Alex Philip Graaham | Fullerenes |
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Cited By (8)
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JP2008222583A (ja) * | 2007-03-09 | 2008-09-25 | Japan Science & Technology Agency | フラーレン誘導体およびその製造方法 |
WO2009087948A1 (ja) * | 2008-01-09 | 2009-07-16 | Sumitomo Chemical Company, Limited | フラーレン誘導体を含む組成物およびそれを用いた有機光電変換素子 |
GB2463046A (en) * | 2008-08-29 | 2010-03-03 | Univ Surrey | Metal complexes comprising a fullerite |
JP2010270018A (ja) * | 2009-05-19 | 2010-12-02 | Japan Science & Technology Agency | フラーレン誘導体および当該誘導体を含む光電変換材料 |
WO2011016430A1 (ja) * | 2009-08-04 | 2011-02-10 | 三菱化学株式会社 | 光電変換素子及びこれを用いた太陽電池 |
JP2011054947A (ja) * | 2009-08-04 | 2011-03-17 | Mitsubishi Chemicals Corp | 光電変換素子用電極バッファー材料ならびにこれを用いた光電変換素子 |
JP2011054948A (ja) * | 2009-08-05 | 2011-03-17 | Mitsubishi Chemicals Corp | 光電変換素子材料、光電変換素子用電極バッファー材料ならびにこれを用いた光電変換素子 |
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