WO2006109769A1 - 光電変換素子用電解液組成物及びそれを用いた光電変換素子 - Google Patents
光電変換素子用電解液組成物及びそれを用いた光電変換素子 Download PDFInfo
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- WO2006109769A1 WO2006109769A1 PCT/JP2006/307561 JP2006307561W WO2006109769A1 WO 2006109769 A1 WO2006109769 A1 WO 2006109769A1 JP 2006307561 W JP2006307561 W JP 2006307561W WO 2006109769 A1 WO2006109769 A1 WO 2006109769A1
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- Prior art keywords
- photoelectric conversion
- cation
- conversion element
- carbon atoms
- formula
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- 150000008053 sultones Chemical class 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- GJSGYPDDPQRWPK-UHFFFAOYSA-N tetrapentylammonium Chemical compound CCCCC[N+](CCCCC)(CCCCC)CCCCC GJSGYPDDPQRWPK-UHFFFAOYSA-N 0.000 description 1
- VOVUARRWDCVURC-UHFFFAOYSA-N thiirane Chemical compound C1CS1 VOVUARRWDCVURC-UHFFFAOYSA-N 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 150000003608 titanium Chemical class 0.000 description 1
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 description 1
- 229910000348 titanium sulfate Inorganic materials 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- BMTHNVMASXVELE-UHFFFAOYSA-N trimethyl(propan-2-yl)azanium Chemical compound CC(C)[N+](C)(C)C BMTHNVMASXVELE-UHFFFAOYSA-N 0.000 description 1
- CURCMGVZNYCRNY-UHFFFAOYSA-N trimethylazanium;iodide Chemical compound I.CN(C)C CURCMGVZNYCRNY-UHFFFAOYSA-N 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000001018 xanthene dye Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M14/00—Electrochemical current or voltage generators not provided for in groups H01M6/00 - H01M12/00; Manufacture thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M14/00—Electrochemical current or voltage generators not provided for in groups H01M6/00 - H01M12/00; Manufacture thereof
- H01M14/005—Photoelectrochemical storage cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2004—Light-sensitive devices characterised by the electrolyte, e.g. comprising an organic electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
- H01G9/2031—Light-sensitive devices comprising an oxide semiconductor electrode comprising titanium oxide, e.g. TiO2
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/002—Inorganic electrolyte
- H01M2300/0022—Room temperature molten salts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
-
- 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
- Y02E10/542—Dye sensitized solar cells
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Definitions
- the present invention relates to a photoelectric conversion element. More specifically, the present invention relates to an electrolytic solution composition for a photoelectric conversion element having excellent electrical properties and a photoelectric conversion element using the same.
- Non-Patent Document 1 For example, by adsorbing a ruthenium complex dye on a porous titanium oxide titanium electrode, it has now reached the same level of performance as a silicon solar cell (Non-Patent Document 1). However, with regard to dye-sensitized solar cells, after that, a significant improvement effect was obtained in improving energy conversion efficiency. In order to enable the practical use of a dye-sensitized solar cell as an alternative to the silicon solar cell, the cost of the dye-sensitized solar cell is expected to be further improved. And
- an electrolyte pair solution in which an electrolyte pair is dissolved in an organic solvent has been proposed as an electrolyte medium used in a charge transfer layer of a dye-sensitized solar cell.
- an electrochemical conversion element using an electrolyte-to-solution as a charge transfer layer has a drawback that liquid leakage may occur during long-term use or storage, resulting in lack of reliability.
- Non-Patent Document 1, Patent Document 2, and the like disclose a photoelectric conversion element using semiconductor fine particles sensitized with a dye and a photoelectrochemical cell using the photoelectric conversion element.
- an electrolyte pair solution containing an organic solvent is used in the charge transfer layer! / Speak. Therefore, the electrolyte may leak or dry out during long-term use or storage. As a result, there is a concern that the photoelectric conversion efficiency is remarkably lowered or the photoelectric conversion element does not function.
- Patent Document 3 and Non-Patent Document 2 each disclose a photoelectric conversion element including a solid electrolyte pair using a crosslinked polyethylene oxide-based polymer compound.
- photoelectric conversion elements using these solid electrolyte pairs have insufficient photoelectric conversion characteristics, particularly short-circuit current density, and in addition, durability is not sufficient.
- Patent Document 4 a method is disclosed in which pyridinium salt, imidazolium salt, triazonium salt or the like is used as an electrolyte to salt in order to prevent leakage and dehydration of the electrolyte and improve durability.
- Patent Document 5 a method is disclosed in which pyridinium salt, imidazolium salt, triazonium salt or the like is used as an electrolyte to salt in order to prevent leakage and dehydration of the electrolyte and improve durability.
- Patent Document 5 These salts are in a liquid state at room temperature, Called. This method uses room temperature molten salt with a low vapor pressure as a solvent, which improves battery durability.
- the photoelectric conversion elements using these room temperature molten salts have a drawback that the open-circuit voltage is low and the photoelectric conversion efficiency is insufficient.
- Patent Document 1 Japanese Patent No. 2664194
- Patent Document 2 U.S. Pat.
- Patent Document 3 Japanese Patent Application Laid-Open No. 07-288142
- Patent Document 4 W095Z18456
- Patent Document 5 Japanese Patent Application Laid-Open No. 08-259543
- Non-Patent Document 1 Nature, 353, 737-740, 1991
- Non-Patent Document 2 J. Am. Chem. Soc. 115 (1993) 6382
- Non-Patent Document 3 Solid State Ionics, 89, 263 (1996)
- the present inventors have intensively studied to solve the above-described problems. As a result, it has been found that the above problem can be solved by using an electrolyte composition containing a specific room temperature molten salt and an organic solvent having no ionicity as a charge transfer layer.
- the present invention has been completed.
- the present invention relates to the following configuration.
- a cation having a five-membered or six-membered cyclic quaternary ammonium group in which a cation forming a room temperature molten salt has one or two nitrogen atoms and an atomic force other than the nitrogen atom The electrolytic solution composition for photoelectric conversion elements according to item [1].
- R 1 and R 2 are each independently an alkyl group having 1 to 8 carbon atoms;
- 21 22 2 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms.
- R 1 and R 2 are each independently an alkyl group having 1 to 8 carbon atoms;
- -R each independently represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms.
- R represents an alkyl group having 1 to 8 carbon atoms, and R to R each independently represents
- R is an alkyl group having 1 to 8 carbon atoms, and R 1 to R 5 are each independently
- R 1 and R 2 are each independently an alkyl group having 1 to 8 carbon atoms;
- -R each independently represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms.
- R represents an alkyl group having 1 to 8 carbon atoms, and R to R each independently represents
- Photoelectric conversion in which a conductive support having a semiconductor-containing layer and a conductive support having a counter electrode are arranged to face each other at a predetermined interval, and a charge transfer layer is sandwiched between the two supports.
- a photoelectric conversion device wherein the charge transfer layer contains the electrolytic solution composition for photoelectric conversion devices according to any one of items [1] to [9].
- the electrolytic solution composition for a photoelectric conversion element of the present invention is also very useful for a secondary battery such as a photoelectric conversion element, a primary battery such as a fuel cell, a lithium battery, or an electric double layer capacitor.
- a photoelectric conversion element using this can obtain a large short-circuit current, so that high conversion efficiency can be obtained.
- the solar cell that can also obtain this photoelectric conversion element power has the effect that the conversion efficiency is high and the durability is excellent, so that the cost can be reduced.
- the electrolytic solution composition for a photoelectric conversion element of the present invention contains a redox electrolyte pair, a room temperature molten salt and no ionicity! / ⁇ contains an organic solvent, and does not have an ionicity with a room temperature molten salt! /
- the ratio of non-ionic organic solvent to the total weight of the organic solvent is 2 to 40% by weight, preferably 5 to 40% by weight.
- a conductive support having a semiconductor-containing layer and a conductive support having a counter electrode are arranged to face each other at a predetermined interval, and the charge transfer layer is sandwiched between the two supports. It is made.
- At least one is a conductive support having a semiconductor-containing layer in which a sensitizing dye is adsorbed on a conductive support such as transparent conductive glass, and a conductive support as a counter electrode.
- the body is disposed opposite to each other at a predetermined interval, and a charge transfer layer is sandwiched between the supports.
- the electrolytic solution composition for photoelectric conversion elements of the present invention is used as the charge transfer layer.
- the electrolytic solution composition of the present invention is a mixture of a redox electrolyte pair, a room temperature molten salt, and an organic solvent having no ionicity.
- the room temperature molten salt refers to an ionic compound that is at least partially liquid at room temperature.
- the room temperature molten salt is preferably a molten salt formed from a quaternary amorphous cation and a non-metallic element.
- “normal temperature” is the temperature range in which the device is expected to operate normally. The upper limit is about 100 ° C, usually about 60 ° C, and the lower limit is about –50 ° C, usually –20 °. About C.
- Inorganic molten salts such as Li CO -Na CO -K CO used for various electrodepositions
- the bone represented by the formula (1) As the cation forming the room temperature molten salt used in the present invention, the bone represented by the formula (1) is used.
- a cation having a quaternary ammonium group having a rating, a thione having a 5-membered or 6-membered cyclic quaternary ammonium group composed of 1 to 2 nitrogen atoms and a nuclear power other than the nitrogen atom is preferred.
- R 1, R 2, R 3 and R 4 in formula (1) are each independently a hydrogen atom or a carbon number of 1 to
- alkyl group having 8 or an alkoxyalkyl group having 2 to 8 carbon atoms is shown.
- a preferred alkyl group is a linear, branched or cyclic alkyl group having 1 to 7 carbon atoms, more preferably a linear alkyl group having 1 to 6 carbon atoms.
- alkyl group examples include methyl, ethyl, vinyl, n-propyl, isopropyl, cyclopropyl, n-butyl, isobutyl, t-butyl, cyclobutyl, n pentyl, 2-methylbutyl, 3-methylbutyl, 3-ethylpropyl, 2,2 dimethylpropyl, 2,3 dimethylpropyl, n-hexyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 5-methylpentyl, 2,2 dimethylbutyl, 2,3 dimethylbutyl, 2,4 dimethyl Butyl, 3,3-dimethylbutyl, 3,4-dimethylbutyl, 4,4-dimethylbutyl, cyclohexyl, n-heptyl, 2-methylhexyl, 3-methylhexyl, 4-methylhexyl, 5- Methylhexyl, 6-methylhexyl, 4-methyl
- Preferred alkyl groups include methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, t-butyl, n-pentyl, 2-methylbutyl, 3-methylbutyl, 3-ethylpropyl, 2,2 dimethylpropyl, 2 , 3 Dimethylpropyl, n-xyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 5-methylpentyl, 2,2 dimethylbutyl, 2,3 dimethylbutyl, 2,4 dimethylbutyl, 3,3 dimethylbutyl, 3, 4-dimethylbutyl, 4,4-dimethylbutyl, cyclohexyl, n-butyl, 2-methylhexyl, 3-methylhexyl, 4-methylhexyl, 5-methylhexyl, 6-methylhexyl, 2, 2 Dimethylpentyl, 2,3 Dimethylpentyl, 2,4 Dimethyl
- the alkoxyalkyl group is an alkoxyalkyl group having 2 to 7 carbon atoms. More preferably, it is an alkoxyalkyl group composed of 3 to 4 carbon atoms. Specific examples of the alkoxyalkyl group include methoxymethyl, methoxyethyl, methoxypropyl, methoxybutyl, methoxypentyl, methoxyhexyl, methoxyheptyl, ethoxymethyl, ethoxyethyl, ethoxypropyl, ethoxybutyl, ethoxypentyl, ethoxyhexyl, n propoxymethyl, n —propoxychetil, n propoxypropyl, n propoxybutyl, n propoxypentyl, n butoxymethyl, n butoxyshtil, n butoxypropyl, n butoxybutyl, n pentoxymethyl, n pentoxyshet
- Preferred alkoxyalkyl groups include methoxyethyl, methoxypropyl, methoxybutyl, methoxypentyl, methoxyhexyl, ethoxymethyl, ethoxyethyl, ethoxypropyl, ethoxybutyl, ethoxypentyl, n propoxymethyl, n propoxychetil, and n propoxypropyl.
- Specific examples of the cation having a quaternary ammonium group represented by the formula (1) include trimethyl ammonium ammonium cation, trimethylpropyl ammonium cation, trimethyl hexyl ammonium cation, tetrapentyl ammonium cation, methyl jeti Examples include rumethoxyethyl ammonium cation and trimethylisopropyl ammonium cation.
- R 1 to R 4 in Formula (2) are alkyl groups (each independently selected),
- preferred alkyl groups for R 1 to R 5 are also preferred alkyl groups for R 1 to R 5 in formula (1).
- alkyl group are the same as those of the kill group.
- imidazolium cations such as a dialkyl imidazolium cation and a trialkyl imidazolium cation are preferable.
- dialkylimidazolium cations are 1,3-dimethylimidazolium cation, 1-ethyl-3-methylimidazolium cation, 1-methyl-3-ethyl imidazolium cation, 1-methyl-3-butylimidazolium cation, 1-butyl-3 -Methylimidazolium cation, 1-methyl-3-propylimidazolium cation, 1-methyl-3-burium imidazolium cation and the like.
- trialkylimidazolium cation examples include 1,2,3-trimethylimidazolium cation, 1,2-dimethyl-3-ethylimidazolium cation, 1,2-dimethyl-3-propylimidazolium cation, And 1-butyl-2,3-dimethylimidazolium cation. However, it is not limited to these.
- R 1 to R 4 in Formula (3) are alkyl groups (each independently selected)
- Specific examples of the group include the same specific examples as those in the case where R 1 to R 5 in the formula (1) are alkyl groups.
- preferred alkyl groups for R 1 to R 5 are also preferred alkyl groups for R 1 to R 5 in formula (1).
- alkyl group is the same as those of the kill group.
- pyrrolium cation represented by the formula (3) examples include 1,1-dimethylpyrrolium cation, 1-ethyl-1 methylpyrrolium cation, 1-methyl-1 propylpyrrolium cation, 1-butyl-1 methylpyrrolium cation, and the like.
- the powers listed are not limited to these.
- R 1 to R 4 in Formula (4) are alkyl groups (each independently selected),
- preferred alkyl groups for R 1 to R 5 are also preferred alkyl groups for R 1 to R 5 in formula (1).
- alkyl group is the same as those of the kill group.
- pyrrolium cation represented by the formula (4) examples include 1,2 dimethylpyrrole cation, 1-ethyl-2-methylpyrrolium cation, 1 propyl 2-methylpyrrolium cation, 1-butyl-2-methylpyrrolium cation. It is not limited to these.
- R 1 to R 5 in Formula (5) are alkyl groups (each independently selected),
- preferred alkyl groups for R 1 to R 5 are also preferred alkyl groups for R 1 to R 5 in formula (1).
- alkyl group is the same as those of the kill group.
- pyrazolium cation represented by the formula (5) examples include 1,2 dimethyl bisazolium cation, 1-ethyl-2-methylpyrazolium cation, 1 propyl 2-methylpyrazolium cation, 1-butyl-2- Examples include forces such as methylpyrazolium cation, but are not limited thereto.
- R 1 to R 4 in Formula (6) are alkyl groups (each independently selected),
- R 1 to R 5 in the formula (1) are alkyl groups. It is done. Specific examples of preferred alkyl groups for R 1 to R 5 are also preferred alkyl groups for R 1 to R 5 in formula (1).
- alkyl group is the same as those of the kill group.
- pyrrolidinium cation represented by the formula (6) include 1,1-dimethylpyrrolidinium cation, 1-ethyl-1-methylpyrrolidinium cation, 1-methyl-1-propylpyrrolidilium cation, 1-butyl-1 methyl. Forces including pyrrolidinium cation and the like are not limited to these.
- R 1 to R 4 in Formula (7) are alkyl groups (each independently selected),
- preferred alkyl groups for R 1 to R 5 are also preferred alkyl groups for R 1 to R 5 in formula (1).
- pyridinium cation represented by the formula (7) examples include N methyl pyridinium cation, N ethyl pyridinium cation, N propyl pyridinium cation, N butyl pyridinium cation, 1 ethyl 2-dimethyl dimethyl cation, 1 butyl 4 methyl pyridinium. Forces such as -um cations, 1-butyl-2,4 dimethylpyridumumcation, etc. are not limited to these.
- the cation having a quaternary ammonium group represented by the formula (1) and the cation having a quaternary ammonium group represented by the formulas (2) to (7) shown in the above examples have high flame retardancy.
- these cations are cations that exhibit a liquid at room temperature with a relatively low melting point, and are also called ionic liquids.
- an ordinary temperature molten salt obtained with these cation powers is used to form an electrolyte composition, high flame retardancy can be imparted only by obtaining high ionic conductivity.
- the room temperature molten salt used in the present invention is preferably a salt composed of each cation and a key force.
- the counter ion (a-on) of the cation is ⁇ , BF-, PF-, SO-
- the room temperature molten salt used in the present invention is prepared by mixing and stirring the above-mentioned cations and ions using, for example, a solvent such as water, if necessary. Can be prepared.
- the redox electrolyte pair used in the present invention includes a halogen compound having a halogen ion as a counter ion and a halogen acid salt-reducing electrolyte pair having a halogen molecular force;
- Metallic acid-reducing electrolytes such as ferricyanate, ferrocene ferricium ion, cobalt complexes, etc .
- organic redox electrolytes such as alkylthiols, alkyldisulfides, piorogen dyes, hydroquinone-quinones You can list pairs. Among these, a halogen redox electrolyte pair is preferable.
- halogen molecule in the halogenate-reduced electrolyte pair examples include an iodine molecule and a bromine molecule, and an iodine molecule is preferable.
- halogen compounds having halogen ions as counter ions include metal halide salts such as Lil, Nal, KI, Csl, Cal, and Cul;
- the organic solvent that does not have ionicity used in the present invention is preferably a liquid that is liquid at room temperature and has no ionicity.
- organic solvents that are liquid at room temperature and have no ionic properties include cyclic carbonates such as propylene carbonate, ethylene carbonate, butylene carbonate, black ethylene carbonate, and beylene carbonate; ⁇ -butylolatone, ⁇ —Cyclic esters such as valerolataton, propiolataton, and valerolataton; chain carbonates such as dimethylolate, jetinolecarbonate, ethylmethyl carbonate, and diphenyl carbonate; chain forms such as methyl formate, methyl acetate, and methyl butyrate Esters; Tetrahydrofuran or its derivatives; 1,3-dioxane, 1,4-dioxane, dimethoxyethane, diethoxyethane, methoxyethoxetane
- Ete -Tolyls such as acetonitrile, 3-methoxypropio-tolyl, methoxyacetonitrile, benzo-tolyl; Alcohols such as ethylene glycol, propylene glycol, diethylene glycol, triethyleneglycolole; Dioxolane such as 1,3-dioxolane Or derivatives thereof: ethylene sulfide, sulfolane, sultone, dimethylformamide, dimethyl sulfoxide, methyl formate, 2-methyltetrahydrofuran, 3-methyl-2-oxazolidinone, sulfolan, tetrahydrofuran, water and the like.
- Dioxolane such as 1,3-dioxolane Or derivatives thereof: ethylene sulfide, sulfolane, sultone, dimethylformamide, dimethyl sulfoxide, methyl formate, 2-methyltetrahydrofuran, 3-methyl-2-oxazolidinone
- acetonitrile, propylene carbonate, ethylene carbonate, 3-methoxypropio-tolyl, methoxyacetonitrile, ethylene glycol, 3-methyl-2-oxazolidinone, ⁇ -butyrolataton and the like are preferable. These may be used alone or in combination of two or more.
- the ratio of the organic solvent having no ionicity to the total weight of the organic solvent having no ionicity with the room temperature molten salt is preferably 2 to 40% by weight. Is 5-40% by weight. More preferably, it is 5 to 30% by weight.
- the ratio of the room temperature molten salt is 98 to 60% by weight, preferably 95 to 60% by weight with respect to the total weight of the organic solvent having no ionicity with the room temperature molten salt. what is 0/0, more preferably those wherein 95 to 70 weight 0/0.
- the molar concentration of the acid-reduced electrolyte pair is usually 0.01 to 40 molar, preferably 0.05 to 20 molar, and more preferably 0.5 to 5 molar. is there.
- the electrolytic solution composition for a photoelectric conversion element of the present invention having the redox electrolyte pair, a room temperature molten salt, and an ionic / non-organic solvent as essential components is, for example, as follows: Prepared in various ways.
- the redox electrolyte pair may be dissolved in an organic solvent having no ionicity, and then room temperature molten salt may be added and mixed uniformly to a predetermined concentration, or the electrolyte pair may be mixed with the room temperature molten salt.
- the preparation method may be such that an organic solvent having no ionicity may be added after the solution is dissolved.
- the redox electrolyte pair, the room temperature molten salt, and the organic solvent having no ionicity may be used alone or in combination of two or more.
- the low molecular weight gelling agent is dissolved in the electrolytic solution composition of the present invention to increase the viscosity, or the polymer is compounded by combining the polymer. It may be solidified.
- the polymer for example, polyethylene oxide, polypropylene oxide, polyacrylonitrile, polymethyl methacrylate, polyvinylidene fluoride, various acrylic monomers, methacrylic monomers, acrylamide monomers, aryl monomers, Forces to use polymers of monomers such as styrene monomers are not limited to these. These may be used alone or in combination of two or more. These reactive components can be added to the electrolyte composition and reacted after the electrolyte composition injection operation described later to form a gel electrolyte pair.
- a conductive support having a semiconductor-containing layer and a conductive support having a counter electrode are arranged to face each other at a predetermined interval, and a gap between the two supports is provided. It is preferably used as a material for forming the charge transfer layer in a photoelectric conversion element having a charge transfer layer sandwiched between them.
- V the electrolytic solution composition of the present invention will be described using V as a charge transfer layer in the photoelectric conversion element.
- FIG. 1 is a schematic cross-sectional view of an essential part showing an example of the photoelectric conversion element of the present invention.
- 1 is a conductive support having conductivity
- 2 is a semiconductor-containing layer sensitized by a dye (1 and 2 are collectively referred to as a semiconductor electrode)
- 3 is a conductive surface of the conductive support.
- 4 is a counter electrode in which platinum or the like is disposed
- 4 is a charge transfer layer disposed so as to be sandwiched between opposing conductive supports
- 5 is a sealant.
- the charge transfer layer is formed by enclosing the electrolytic solution composition for photoelectric conversion elements of the present invention in the gap.
- the semiconductor-containing layer has a metal oxide semiconductor fine particle force
- examples of usable metal oxide semiconductors include periodic table Ila group oxides such as magnesium, calcium and strontium oxides, transition metal oxides, etc.
- Acids such as titanium, zirconium, hafnium, strontium, tantalum, chromium, molybdenum, niobium, scandium, vanadium, iron, nickel, silver or tandasten, and acids such as zinc which is a lib group acid Examples include acids such as aluminum and indium which are Illb group acids, and silicon and tin which are Group IVb acids.
- fine particles of metal oxide semiconductors such as titanium oxide, zinc oxide, and tin oxide are preferred.
- metal oxide semiconductor fine particles can be used as they are, but for example, a mixture of acid zinc and oxide oxide, metal oxide semiconductor fine particles, or modification with the following metal oxides, etc. Modified titanium oxide fine particles can also be used.
- Metal oxides that can be used to modify titanium oxide include magnesium, calcium, and strontium oxides that are Group Ila oxides of the periodic table, and zinc that is a transition metal oxide.
- -Oxides such as zinc, lib group oxides, oxides such as hum, hafnium, strontium, tantalum, chromium, molybdenum, niobium, scandium, vanadium, iron, nickel, silver or tungsten, Illb group oxides such as aluminum or indium, IVb
- acids such as silicon or tin which are group acids.
- oxides of magnesium, calcium, strontium, zirconium, niobium and silicon are preferably used. There is one kind of these metal oxides, or two or more kinds may be used in combination.
- modified titanium oxide fine particles the content ratio of titanium oxide and metal oxides other than titanium oxide is 1ZO. 005-20 in terms of atomic ratio of titanium Z non-titanium atoms. Most preferred.
- the crystal system of titanium oxide used as a raw material in the preparation of modified titanium oxide fine particles is not particularly limited, but anatase-type crystals are preferred V. Acidic titanium with anatase-type crystals can also be obtained, but it is a publicly known method from titanium alkoxide, titanium salt, titanium sulfate, nitrate, etc. It is also possible to manufacture by. In particular, it is preferable to use titanium alkoxide.
- water As the solvent at that time, water, a solvent soluble in water or a mixed solvent thereof, a mixed solvent of water and a solvent soluble in water, or the like can be used. If the raw material is titanium alkoxide, it is preferable to use alcohols.
- the method for producing the modified titanium oxide fine particles includes a material that is a raw material for the modified oxide titanium fine particles, such as a compound of each metal constituting each metal oxide, such as metal alkoxide, chloride, sulfide. And a mixture of the product, nitrate, etc. is reacted in a reaction vessel in a solvent.
- the metal compound is preferably a metal alkoxide.
- As the solvent water, a solvent soluble in water or a mixed solvent thereof, a mixed solvent of water and a solvent soluble in water, or the like can be used.
- the raw material is a metal alkoxide, it is preferable to use an alcohol.
- the solvent used is preferably a monohydric alcohol or a polyhydric alcohol, more preferably a polyhydric alcohol, particularly 1,4 butanediol.
- the reaction temperature is preferably from 110 ° C to 400 ° C.
- desired fine particles may be obtained by an operation such as centrifugation.
- the modified titanium oxide fine particles have excellent photocatalytic activity !, they can be used as a catalyst for photooxidation reaction, a carrier for catalyst utilizing the heat resistance, etc. It is preferably used as a semiconductor-containing layer in the conversion element.
- the modified titanium oxide fine particles are obtained by devising the type and ratio of titanium oxide and the metal oxide compounded therewith, as well as the composite method. For example, by sensitizing with a photocatalyst having high catalytic activity or a specific sensitizing dye, a photoelectric conversion element that expresses a remarkably large open circuit voltage can be obtained.
- Modified titanium oxide fine particles such as titanium oxide fine particles can also be prepared, for example, according to the method using metal alkoxide described above.
- the semiconductor-containing layer having the metal oxide semiconductor fine particle force preferably has a high surface area for the purpose of adsorbing a sensitizing dye or the like as described later.
- the metal oxide semiconductor fine particles preferably have a small primary particle size that should achieve a high surface area.
- the primary particle diameter is preferably 1 to 3000 nm, more preferably 5 to 500 nm.
- Surface area of the metal Sani ⁇ semiconductor fine particles can be primary particles ⁇ calculation is usually 0. 5 ⁇ 1500 m 2 / g, preferably 3 ⁇ 300m 2 / g.
- the pore volume of the metal oxide semiconductor fine particles is preferably 0.05-0.8 mlZg, and the average pore diameter is preferably in the range of 1 to 250 nm.
- the surface area of metal oxide semiconductor fine particles is measured by the nitrogen adsorption method (BET method), and the primary particle diameter is calculated from the measured surface area.
- the average pore diameter can also be measured by the BET method.
- the conductive support examples include conductive materials represented by FTO (fluorine-doped tin oxide), ATO (antimony-doped tin oxide), ITO (indium-doped tin oxide), glass, plastic, polymer film, titanium, and the like.
- FTO fluorine-doped tin oxide
- ATO antimony-doped tin oxide
- ITO indium-doped tin oxide
- glass plastic
- polymer film titanium
- a stable metal such as tantalum or tantalum, or a thin film formed on the surface of a substrate such as carbon is used. Its conductivity is usually 1000 Q Zcm 2 or less, preferably lOO Q Zcm 2 or less.
- the shape of the conductive support a foam, a film, a sheet, a net, a punch or an expand, a lath, a porous body, a foam, or a fiber group is formed.
- a body or the like can be employed.
- the thickness of the conductive support is not particularly limited, but a thickness of about 0.1 to 10 mm is usually used.
- a method of providing a semiconductor-containing layer containing metal oxide fine particles on a conductive support (hereinafter also referred to as a substrate)
- a method of directly forming a thin film of oxide semiconductor fine particles on a substrate by vapor deposition A method of electrically depositing a layer of oxide semiconductor fine particles on a substrate using the substrate as an electrode; After preparing a slurry or paste containing metal oxide fine particles and applying or coating these on the substrate There are methods such as drying, curing or baking. Among these, a method using a slurry is preferable.
- the slurry is obtained by dispersing the metal oxide semiconductor fine particles that may be secondary agglomerated in a dispersion medium using a dispersant so that the average primary particle diameter is 1 to 300 Onm.
- the slurry is obtained by hydrolyzing alkoxide, which is a precursor of an oxide semiconductor, by hydrolysis reaction of alkoxide in alcohol (glycothermal method).
- the dispersant used in preparing the slurry can be used without particular limitation as long as it can disperse the metal oxide fine particles.
- an organic solvent having no ionic properties such as water, alcohol such as ethanol, ketone such as acetone and acetylacetone, and hydrocarbon such as hexane is used. It is preferable to use water that can be mixed and used to reduce the viscosity change of the slurry.
- a dispersion stabilizer may be added to the slurry for the purpose of obtaining primary particles of stable metal oxide.
- Specific examples of the dispersion stabilizer that can be used include polyhydric alcohols such as polyethylene glycol; condensates of polyhydric alcohols such as polyethylene glycol and phenol, octyl alcohol, and the like; hydroxypropyl methylcellulose, hydroxymethyl cellulose, hydroxyethino.
- Cenorelose derivatives such as resenorelose and canoleboxymethylenoresenorelose; polyacrylamide; poly (meth) acrylic acid or salts thereof; acrylamide and (meth) acrylic acid of poly (meth) acrylic acid or salts thereof Or a copolymer thereof with an alkali metal salt; (a) an alkali metal salt of Z or (meth) acrylic acid and (b) methyl (meth) acrylate, ethyl (meth) acrylate, etc. ( (Meth) acrylic acid ester, styrene, ethylene, propylene, etc.
- Polyacrylic acid derivatives that are water-soluble copolymers with other hydrophobic monomers; salts of melamine sulfonic acid formaldehyde condensates; Examples thereof include, but are not limited to, dispersion stabilizers; salts of rumaldehyde condensates; high molecular weight lignosulfonates; acids such as hydrochloric acid, nitric acid, and acetic acid; These dispersion stabilizers can be used alone or in combination of two or more.
- polyhydric alcohols such as polyethylene glycol; condensates of these polyhydric alcohols with phenol, octyl alcohol, etc .; having carboxyl groups and Z or sulfone groups and Z or amide groups in the molecule
- Poly (meth) acrylic acid, poly (meth) acrylic acid sodium salt, poly (meth) acrylic acid potassium salt, poly (meth) acrylic acid such as lithium poly (meth) acrylate or salt thereof; carboxymethylcellulose, hydrochloric acid Acids such as nitric acid and acetic acid are preferred.
- the concentration of the metal oxide fine particles in the slurry is 1 to 90% by weight, preferably 5 to 80% by weight.
- a glass rod can be applied to a desired thickness, a screen printing method, a spin coating method, or a spraying method can be employed.
- the substrate coated with the slurry is preferably subjected to a baking treatment.
- the firing temperature is generally not higher than the melting point (or softening point) of the substrate, usually 100 to 900 ° C., and preferably 100 to 600 ° C. (less than the melting point or soft melting point of the substrate).
- the firing time is preferably within 4 hours.
- the thickness of applying the slurry onto the substrate is usually 1 to 200 m, preferably 3 to LOO m.
- the thickness of the metal oxide fine particle layer (semiconductor-containing layer) after treatment such as drying or firing is usually adjusted to 0.01 to 180 m, preferably 0.05 to 80 m.
- a secondary treatment may be performed with a metal compound (see Non-Patent Document 2).
- a metal compound such as alkoxides, chlorides, nitrides, sulfides, metal acetates, etc. of the same metal used to prepare the metal oxide fine particles, and dry.
- metal alkoxides include titanium ethoxide, titanium isopropoxide, titanium tert-butoxide, etc. Salts such as tetrasalt-titanium, tin tetrachloride, zinc chloride, etc. Ludiacetyltin and the like. These metal compounds are used after being dissolved or suspended in a solvent such as water or alcohol.
- the semiconductor-containing layer has the function of absorbing light energy and converting it to electrical energy. can do.
- Any dye for sensitization can be used without particular limitation as long as it can enhance light absorption in combination with metal oxide fine particles.
- Sensitizing dyes already known in this field such as metal complex dyes and non-metallic organic dyes, can be used.
- One type of dye may be used, or several types may be mixed and used.
- dyes may be sufficient and an organic pigment
- dyes having different absorption wavelengths by mixing dyes having different absorption wavelengths, a wide range of absorption wavelengths can be used, and a dye-sensitized photoelectric conversion element with high conversion efficiency can be obtained.
- metal complex dyes examples include ruthenium complexes, phthalocyanine dyes, porphyrin dyes, and the like.
- non-metallic organic dyes include non-metallic phthalocyanine dyes, non-metal porphyrin dyes, cyanine dyes, merocyanine dyes, oxonol dyes, triphenylmethane dyes, acrylic dyes.
- Examples include acid dyes, xanthene dyes, azo dyes, anthraquinone dyes, and perylene dyes.
- Preferable examples include ruthenium complexes or methine dyes such as merocyanine dyes and acrylic acid dyes.
- the ratio of each dye in the case of using a mixture of dyes is not particularly limited, and an optimum condition is appropriately selected depending on each dye. In general, it is preferable to use about 10% mol or more per dye, from equimolar mixing.
- the total concentration of the dye in the solution may be the same as when only one kind is supported.
- Solvents as described below can be used as a solvent in the case of using a mixture of dyes, and the solvent for each color used may be the same or different.
- a solution obtained by dissolving each of the dyes in a solvent as described below or a dye having low solubility was obtained by dispersing the dye.
- An example is a method in which a substrate provided with a semiconductor-containing layer made of the metal oxide fine particles is immersed in the dispersion.
- the immersion temperature is generally from 20 ° C to the boiling point of the solvent used.
- the immersion time is usually about 1 to 48 hours.
- Specific examples of the solvent that can be used for dissolving the dye include methanol, ethanol, acetonitrile, dimethyl sulfoxide, dimethylformamide, t-butanol and the like.
- the dye concentration of the solution, the good is usually 1 X 10- 6 M ⁇ 1M instrument on a molar (M) is preferably 1 X 10- 5 M ⁇ 1 X 10 _1 M.
- the treatment is performed in the presence of the inclusion compound in order to prevent the association between the dyes.
- the inclusion complex that can be used here include cholic acid such as deoxycholic acid, chenodeoxycholic acid, cholic acid methyl ester, sodium cholate, crown ether, cyclodextrin, calixarene, polyethylene oxide and the like. It is possible. Preferable examples include deoxycholic acid, chenodeoxycholic acid, cholic acid methyl ester, cholic acids such as sodium cholate, polyethylene oxide and the like.
- the surface of the semiconductor-containing layer may be treated with an amine compound such as tert-butylpyridine.
- an amine compound such as tert-butylpyridine.
- a treatment method for example, a method of immersing a substrate provided with a semiconductor-containing layer carrying a pigment in an ethanol solution of amine is employed. After the dipping treatment and post-treatment are completed, the solvent is removed by air drying or heating to obtain a substrate provided with a semiconductor-containing layer on which a dye is supported.
- the dye-supported metal oxide fine particle thin film thus prepared functions as a semiconductor electrode in the photoelectric conversion element of the present invention.
- the counter electrode FTO conductive glass, aluminum, titanium, stainless steel, nickel, baked carbon, conductive polymer, conductive glass, or the like is used.
- the surface of a conductive support that has been treated with carbon, nickel, titanium, silver, or the like on the surface of aluminum or copper is reduced to a redox electrolyte pair.
- Deposited with platinum, carbon, rhodium, ruthenium, etc., which act to catalytically assist the reaction, is also used.
- a conductive fine particle precursor coated and fired may be used.
- a semiconductor-containing layer sensitized with a dye is disposed around one conductive support in consideration of a seal portion, and a semiconductor electrode and To do.
- a spacer such as glass fiber
- a sealing agent for an ultraviolet curable photoelectric conversion element a part of an inlet for injecting a charge transfer layer is left around the semiconductor electrode.
- the sealant by screen printing or dispenser.
- the solvent is evaporated by, for example, heat treatment at 100 ° C. for 10 minutes.
- the gap provided between the two conductive supports serves as a charge transfer layer.
- This gap is usually 1 to 200 ⁇ m, preferably 3 to LOO ⁇ m.
- the electrolytic composition for a photoelectric conversion element of the present invention is injected into the gap between the two conductive supports from the injection port to form a charge transfer layer, and then the injection port is sealed to provide the photoelectric conversion element of the present invention.
- the solar cell of the present invention can be obtained by arranging lead wires between the positive electrode and the negative electrode of the photoelectric conversion element of the present invention thus obtained and inserting a resistance component therebetween.
- the mixing ratio (SZT) of the ambient temperature molten salt (S) and the organic solvent (T) is a weight ratio.
- the viscosity was measured with a viscometer (TVE-20 manufactured by Toki Sangyo Co., Ltd.).
- Titanium oxide P25: Nippon Aerosil Co., Ltd., average primary particle size 2 lnm
- this paste was uniformly applied as a semiconductor-containing layer 2 on a conductive surface of fluorine-doped tin oxide glass (FTO glass: manufactured by Asahi Glass Co., Ltd.), which is a conductive support 1, using a glass rod.
- FTO glass fluorine-doped tin oxide glass
- a semiconductor thin film electrode (A). Then, after naturally cooling to about 100 ° C, the dye represented by the following formula (1) (dye After 1 ⁇ immersed at room temperature in EtOH solution (3 X 10- 4 M) of (1)), and washed with EtOH, and air-dried. Next, a platinum layer is formed by sputtering on the conductive surface of fluorine-doped tin oxide glass (FTO glass: manufactured by Asahi Glass Co., Ltd.) that is a conductive support so as to sandwich the semiconductor-containing layer 2 on which the dye is adsorbed. The counter electrode 3 was placed opposite to each other with a 10 m gap.
- FTO glass fluorine-doped tin oxide glass
- the semiconductor-containing layer 2 on which the dye is adsorbed, and a counter electrode in which a platinum layer is provided by sputtering on the conductive surface of fluorine-doped tin oxide glass (FTO glass: manufactured by Asahi Glass Co., Ltd.), which is a conductive support. 3 were bonded together with a sealing agent and arranged opposite to each other.
- the electrolytic solution composition obtained in Example 1 as the charge transfer layer 4 was injected into the space, and the photoelectric conversion device of the present invention was obtained.
- Example 58 Preparation of titanium oxide fine particles by sol-gel method
- Titanium isopropoxide (30 g) was used as a titanium alkoxide, which was suspended in 150 ml of water as a solvent, and sealed in an autoclave having a capacity of 300 ml. After the autoclave was replaced with nitrogen, the temperature was raised to 230 ° C. and a heat treatment was performed for 12 hours. After completion of the reaction, the mixture was naturally cooled to obtain a suspension containing 8.4 g of titanium oxide fine particles.
- Example 59 (Preparation of modified titanium oxide fine particles)
- a suspension of the resulting modified acid-titanium fine particles (TiZZr) made into a paste with turbineol is uniformly applied with a glass rod on the conductive surface of the same conductive support as described in Example 57. And air-dried for 1 hour and then calcined at 450 ° C for 30 minutes. Thereafter, 0.05M titanium tetrachloride aqueous solution was dropped onto the modified titanium oxide fine particles, treated at 80 ° C. for 10 minutes, and then fired at 450 ° C. for 30 minutes to obtain a semiconductor thin film electrode (C). As the semiconductor thin-film electrode (C) and the charge transfer layer, the electrolytic solution composition obtained in Example 3 was used, and the other conditions were the same as in Example 57 to obtain the photoelectric conversion device of the present invention.
- Lead wires were arranged on the positive electrode and the negative electrode of the photoelectric conversion elements obtained in Examples 57 to 59 to obtain solar cells of the present invention.
- This solar cell was connected to the following solar simulator (manufactured by WXS-155S-10W ACOM), and short-circuit current, open-circuit voltage, and conversion efficiency were measured. Note that the size of the photoelectric conversion element used for the measurement was 0.5 ⁇ 0.5 cm.
- a 1000 W xenon lamp manufactured by WACOM
- a simulated sunlight was passed through a commercially available Air mass 1.5 filter (light intensity was lOOmWZcm 2 ).
- Table 2 shows the measurement results of the short-circuit current, open-circuit voltage, and conversion efficiency of each solar cell.
- a photoelectric conversion element was prepared using each of the electrolyte compositions obtained in the dyes (2) and (3) shown above and the examples (4, 7, 10, 11, 14, 21, 31, 52). Then, a solar cell was created. About these solar cells In the same manner as in Examples 57 to 59, the short circuit current, the open circuit voltage, and the conversion efficiency were measured.
- the numbers in the column of the electrolytic solution composition mean the electrolytic solution compositions obtained in those examples.
- the dye means the dye of the above formula (1), the dye (2) and the dye (3) represented by the following formulas (2) and (3), respectively.
- (A), (B), and (C) in the column of the semiconductor thin film electrode mean the semiconductor thin film electrodes obtained in Example 57, Example 58, and Example 59, respectively.
- the photoelectric conversion element (solar cell) of the present invention has excellent durability.
- Photoelectric conversion element Lead wires were placed on the positive and negative electrodes of this photoelectric conversion element to obtain a solar cell, which was connected to a solar simulator (WXS-155S-10 manufactured by WACOM) to measure the conversion efficiency.
- the size of the photoelectric conversion element used for the measurement was 0.5 X 0.5 cm, and a 1000 W xenon lamp (manufactured by WACOM) was used as the light source, and a commercially available Air mass 1.5 filter was used. and a pseudo solar light through (light intensity lOOmWZcm 2) were used.
- Comparative Example 1 (Same as the electrolytic solution composition of Example 2 of Patent Document 4 except for the molar concentration of lithium iodide Z iodine)
- Lithium iodide Z iodine as an electrolyte was 0.2M / 0.07M respectively in a mixed solvent in which 1 hexyl 3 methyl imidazolium iodide and 3 methyl 2oxazolidinone were mixed (weight ratio 1Z2).
- An electrolyte composition was obtained by dissolving and mixing. Using this electrolytic solution composition as a charge transfer layer, a photoelectric conversion element was produced under the same conditions as in Example 68, and the photoelectric conversion efficiency of this photoelectric conversion element was measured.
- the results of Example 68 and Comparative Example 1 are shown in Table 3.
- the electrolytic solution composition for a photoelectric conversion element of the present invention is also very useful for a secondary battery such as a photoelectric conversion element, a primary battery such as a fuel cell, a lithium battery, or an electric double layer capacitor.
- a photoelectric conversion element using the same and a solar cell obtained therefrom have high practical value.
- FIG. 1 is a schematic cross-sectional view of the relevant part of one example of the photoelectric conversion element of the present invention. Explanation of symbols
Abstract
Description
Claims
Priority Applications (7)
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AU2006234481A AU2006234481A1 (en) | 2005-04-11 | 2006-04-10 | Electrolyte composition for photoelectric converter and photoelectric converter using same |
EP06731508A EP1873862A4 (en) | 2005-04-11 | 2006-04-10 | ELECTROLYTE COMPOSITION FOR PHOTOELECTRIC CONVERTER AND PHOTOELECTRIC CONVERTER USING THE SAME |
CA002602592A CA2602592A1 (en) | 2005-04-11 | 2006-04-10 | Electrolyte composition for photoelectric converter and photoelectric converter using same |
KR1020077025939A KR101231935B1 (ko) | 2005-04-11 | 2006-04-10 | 광전 변환 소자용 전해액 조성물 및 그것을 이용한 광전변환 소자 |
US11/886,666 US20090032105A1 (en) | 2005-04-11 | 2006-04-10 | Electrolyte Composition for Photoelectric Converter and Photoelectric Converter Using Same |
CN2006800118435A CN101156275B (zh) | 2005-04-11 | 2006-04-10 | 用于光电转换器的电解质组合物以及使用该电解质组合物的光电转换器 |
JP2007512996A JP5089381B2 (ja) | 2005-04-11 | 2006-04-10 | 光電変換素子用電解液組成物及びそれを用いた光電変換素子 |
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EP (1) | EP1873862A4 (ja) |
JP (1) | JP5089381B2 (ja) |
KR (1) | KR101231935B1 (ja) |
CN (1) | CN101156275B (ja) |
AU (1) | AU2006234481A1 (ja) |
CA (1) | CA2602592A1 (ja) |
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JP2012014908A (ja) * | 2010-06-30 | 2012-01-19 | Japan Carlit Co Ltd | 色素増感太陽電池用電解液及びそれを備えた色素増感太陽電池 |
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2006
- 2006-04-10 JP JP2007512996A patent/JP5089381B2/ja not_active Expired - Fee Related
- 2006-04-10 CA CA002602592A patent/CA2602592A1/en not_active Abandoned
- 2006-04-10 AU AU2006234481A patent/AU2006234481A1/en not_active Abandoned
- 2006-04-10 WO PCT/JP2006/307561 patent/WO2006109769A1/ja active Application Filing
- 2006-04-10 EP EP06731508A patent/EP1873862A4/en not_active Withdrawn
- 2006-04-10 US US11/886,666 patent/US20090032105A1/en not_active Abandoned
- 2006-04-10 CN CN2006800118435A patent/CN101156275B/zh not_active Expired - Fee Related
- 2006-04-10 KR KR1020077025939A patent/KR101231935B1/ko not_active IP Right Cessation
- 2006-04-11 TW TW095112847A patent/TWI389371B/zh not_active IP Right Cessation
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2219260A1 (en) * | 2007-11-30 | 2010-08-18 | Fujikura, Ltd. | Electrolytic composition and photoelectric conversion element using the same |
EP2219260A4 (en) * | 2007-11-30 | 2011-03-09 | Fujikura Ltd | ELECTROLYTIC COMPOSITION AND PHOTOELECTRIC CONVERSION ELEMENT USING THE SAME |
US8257615B2 (en) | 2007-11-30 | 2012-09-04 | Fujikura Ltd. | Electrolyte composition and photoelectric conversion element incorporating the same |
EP2352202A1 (en) * | 2008-11-26 | 2011-08-03 | Sony Corporation | Functional device and method for producing the same |
EP2352202A4 (en) * | 2008-11-26 | 2012-05-23 | Sony Corp | FUNCTIONAL DEVICE AND METHOD FOR MANUFACTURING THE SAME |
EP2458605A1 (en) | 2008-11-26 | 2012-05-30 | Sony Corporation | Functional device and method for producing the same |
JP2012014908A (ja) * | 2010-06-30 | 2012-01-19 | Japan Carlit Co Ltd | 色素増感太陽電池用電解液及びそれを備えた色素増感太陽電池 |
JP2012094447A (ja) * | 2010-10-28 | 2012-05-17 | Osaka Gas Co Ltd | 電解液及び光電変換素子 |
WO2012117867A1 (ja) * | 2011-03-02 | 2012-09-07 | ソニー株式会社 | 光電変換素子、光電変換素子の製造方法および電子機器 |
JP2013125692A (ja) * | 2011-12-15 | 2013-06-24 | Japan Carlit Co Ltd:The | 色素増感太陽電池用電解液およびそれを用いた色素増感太陽電池 |
WO2013172175A1 (ja) * | 2012-05-17 | 2013-11-21 | 東レ株式会社 | 光起電力素子 |
JP2014044813A (ja) * | 2012-08-24 | 2014-03-13 | Osaka Gas Co Ltd | 電解液及び光電変換素子 |
Also Published As
Publication number | Publication date |
---|---|
CA2602592A1 (en) | 2006-10-19 |
TW200705731A (en) | 2007-02-01 |
US20090032105A1 (en) | 2009-02-05 |
EP1873862A4 (en) | 2009-07-29 |
CN101156275A (zh) | 2008-04-02 |
KR101231935B1 (ko) | 2013-02-08 |
TWI389371B (zh) | 2013-03-11 |
CN101156275B (zh) | 2011-03-23 |
AU2006234481A1 (en) | 2006-10-19 |
JP5089381B2 (ja) | 2012-12-05 |
KR20080003873A (ko) | 2008-01-08 |
EP1873862A1 (en) | 2008-01-02 |
JPWO2006109769A1 (ja) | 2008-11-20 |
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