WO2005122320A1 - 光電変換材料、光電変換素子および光電気化学電池 - Google Patents
光電変換材料、光電変換素子および光電気化学電池 Download PDFInfo
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- WO2005122320A1 WO2005122320A1 PCT/JP2005/010572 JP2005010572W WO2005122320A1 WO 2005122320 A1 WO2005122320 A1 WO 2005122320A1 JP 2005010572 W JP2005010572 W JP 2005010572W WO 2005122320 A1 WO2005122320 A1 WO 2005122320A1
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 title claims abstract description 18
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 7
- 125000001424 substituent group Chemical group 0.000 claims description 37
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- 125000003710 aryl alkyl group Chemical group 0.000 claims description 7
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- 230000001678 irradiating effect Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- MHWZQNGIEIYAQJ-UHFFFAOYSA-N molybdenum diselenide Chemical compound [Se]=[Mo]=[Se] MHWZQNGIEIYAQJ-UHFFFAOYSA-N 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000004923 naphthylmethyl group Chemical group C1(=CC=CC2=CC=CC=C12)C* 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 229910000484 niobium oxide Inorganic materials 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 125000004344 phenylpropyl group Chemical group 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 125000004193 piperazinyl group Chemical group 0.000 description 1
- 125000003386 piperidinyl group Chemical group 0.000 description 1
- 239000003495 polar organic solvent Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- UKDIAJWKFXFVFG-UHFFFAOYSA-N potassium;oxido(dioxo)niobium Chemical compound [K+].[O-][Nb](=O)=O UKDIAJWKFXFVFG-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 125000001422 pyrrolinyl group Chemical group 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 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
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000004771 selenides Chemical class 0.000 description 1
- HQASLXJEKYYFNY-UHFFFAOYSA-N selenium(2-);titanium(4+) Chemical compound [Ti+4].[Se-2].[Se-2] HQASLXJEKYYFNY-UHFFFAOYSA-N 0.000 description 1
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 description 1
- 229940045105 silver iodide Drugs 0.000 description 1
- 229940056910 silver sulfide Drugs 0.000 description 1
- XUARKZBEFFVFRG-UHFFFAOYSA-N silver sulfide Chemical compound [S-2].[Ag+].[Ag+] XUARKZBEFFVFRG-UHFFFAOYSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000005118 spray pyrolysis Methods 0.000 description 1
- PWEBUXCTKOWPCW-UHFFFAOYSA-N squaric acid Chemical class OC1=C(O)C(=O)C1=O PWEBUXCTKOWPCW-UHFFFAOYSA-N 0.000 description 1
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 1
- GKCNVZWZCYIBPR-UHFFFAOYSA-N sulfanylideneindium Chemical compound [In]=S GKCNVZWZCYIBPR-UHFFFAOYSA-N 0.000 description 1
- RCYJPSGNXVLIBO-UHFFFAOYSA-N sulfanylidenetitanium Chemical compound [S].[Ti] RCYJPSGNXVLIBO-UHFFFAOYSA-N 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- FAWYJKSBSAKOFP-UHFFFAOYSA-N tantalum(iv) sulfide Chemical compound S=[Ta]=S FAWYJKSBSAKOFP-UHFFFAOYSA-N 0.000 description 1
- XSOKHXFFCGXDJZ-UHFFFAOYSA-N telluride(2-) Chemical compound [Te-2] XSOKHXFFCGXDJZ-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 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
- 125000005207 tetraalkylammonium group Chemical group 0.000 description 1
- 125000004853 tetrahydropyridinyl group Chemical group N1(CCCC=C1)* 0.000 description 1
- BRNULMACUQOKMR-UHFFFAOYSA-N thiomorpholine Chemical group C1CSCCN1 BRNULMACUQOKMR-UHFFFAOYSA-N 0.000 description 1
- AFNRRBXCCXDRPS-UHFFFAOYSA-N tin(ii) sulfide Chemical compound [Sn]=S AFNRRBXCCXDRPS-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- QLHCYPWYDGVVPA-UHFFFAOYSA-N triethylazanium;thiocyanate Chemical compound SC#N.CCN(CC)CC QLHCYPWYDGVVPA-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
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B57/00—Other synthetic dyes of known constitution
- C09B57/007—Squaraine dyes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
- H01G9/2059—Light-sensitive devices comprising an organic dye as the active light absorbing material, e.g. adsorbed on an electrode or dissolved in solution
-
- 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
- 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
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/652—Cyanine dyes
-
- 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
Definitions
- Photoelectric conversion material photoelectric conversion element, and photoelectrochemical cell
- the present invention relates to a photoelectric conversion material, a photoelectric conversion element, and a photoelectrochemical cell using the same.
- This battery is a wet solar cell using a ruthenium complex as a photosensitizer and a titanium dioxide porous thin film as a working electrode (for example, see Patent Document 1 and Non-Patent Document 1).
- a ruthenium complex of the sensitizing dye is expensive, the development of a photoelectric conversion element sensitized by an inexpensive organic dye is desired.
- Patent Document 1 U.S. Pat.No. 4,927,721
- Patent Document 2 Japanese Patent Application Laid-Open No. 11-86916
- Patent Document 3 European Patent No. 911841
- Patent Document 4 JP 2001-76773 A
- Non-Patent Document 1 “Nature”, 1991, Vol. 353, ⁇ ⁇ 737—740 Disclosure of the invention
- An object of the present invention is to provide a photoelectric conversion element which is inexpensive and has high energy conversion efficiency, a photoelectrochemical cell using the same, and the like.
- the present invention provides the following (1) to (6).
- R 1 and R 2 are the same or different and each represent a hydrogen atom, an alkyl group which may have a substituent, a substituted or unsubstituted group, an aryl group or a substituent.
- R 1 and R 2 together with an adjacent nitrogen atom form a heterocyclic ring which may have a substituent
- R 3 , R 3 , R 5 and R 6 are the same or different and each represent a hydrogen atom, an alkyl group which may have a substituent, an alkoxy group which may have a substituent, a hydroxyl group, or a halogen atom
- 1 and R 3 or R 2 and R 4 may be taken together with the adjacent N—C—C to form a heterocyclic ring which may have a substituent.
- R 7 represents an alkyl group which may have a substituent, an aryl group which may have a substituent, or a halogen atom
- m represents an integer of 0 to 4
- m represents In the case of 2 to 4, each R 7 may be the same or different, and R 8 and R 9 may be the same or different and are a hydrogen atom, an alkyl group which may have a substituent, Represents an aralkyl group which may have a substituent or an aralkyl group which may have a substituent), or a group represented by the general formula (IV)
- R 1, R 2, R lb and R 17 are the same or different and each represent a hydrogen atom, an alkyl group optionally having a substituent, an aralkyl group optionally having a substituent, or a substituent.
- R 12 , R 13 , R 14 , R 15 , R 18 , R 19 , R 20, and R 21 are the same or different and have a hydrogen atom or a substituent.
- R, R 2 , R 3 , R 5 and R 6 each have the same meaning as defined above, and a photoelectric conversion material comprising a squarylium compound represented by the formula) and a semiconductor.
- a photoelectric conversion material comprising: a squarylium compound represented by the formula:
- squarylium compound represented by the general formula (I) is sometimes referred to as a squarylium compound (I).
- a photoelectric conversion element having low cost and high energy conversion efficiency, a photoelectrochemical cell using the same, and the like are provided.
- examples of the alkyl moiety in the alkyl group and the alkoxyl group include a linear or branched alkyl group having 1 to 6 carbon atoms or a cyclic group having 3 to 8 carbon atoms.
- examples of the alkyl group include, but are not limited to, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, and 1-methylbutyl.
- aralkyl group examples include an aralkyl group having 7 to 15 carbon atoms, and specific examples thereof include a benzyl group, a phenethyl group, a phenylpropyl group, and a naphthylmethyl group.
- aryl group examples include an aryl group having 6 to 14 carbon atoms, and specific examples thereof include a phenyl group, a naphthyl group, an anthryl group, and an azulenyl group.
- halogen atom examples include a chlorine atom, a bromine atom, a fluorine atom and an iodine atom.
- heterocyclic ring formed by R 1 and R 2 together with an adjacent nitrogen atom examples include, for example, a 5- or 6-membered monocyclic heterocyclic ring containing at least one nitrogen atom (the monocyclic heterocyclic ring).
- a heterocyclic ring may contain another nitrogen, oxygen or sulfur atom), a bicyclic or tricyclic condensed heterocyclic ring containing at least one nitrogen atom fused with a 3- to 8-membered ring.
- Ring (the condensed heterocyclic ring may contain another nitrogen atom, oxygen atom or sulfur atom) and the like. Specific examples thereof include a pyrrolidine ring, a piperidine ring, and a piperazine ring.
- the heterocyclic ring formed by R 1 and R 3 or R 2 and R 4 together with N—C—C adjacent to each other is, for example, a 5-membered member containing at least one nitrogen atom.
- a 6-membered monocyclic heterocyclic ring (the monocyclic heterocyclic ring may contain another nitrogen atom, oxygen atom or sulfur atom), or a bicyclic or tricyclic ring condensed with a 3- to 8-membered ring
- a condensed heterocyclic ring containing at least one nitrogen atom (the condensed heterocyclic ring may contain another nitrogen atom, oxygen atom or sulfur atom) and the like.
- Examples include a pyrroline ring, a 1,2,3,4-tetrahydropyridine ring, a 1,2,3,4-tetrahydrovirazine ring, and a 2,3-dihydrono ⁇ .
- Examples include a laoxazine ring, a 2,3-dihydro-1,4-thiazine ring, a tetrahydroazepine ring, a tetrahydrodazepine ring, a tetrahydroquinoline ring, a tetrahydroisoquinoline ring, a pyrrole ring, an imidazole ring, a pyrazole ring, and an indole ring.
- Examples of the hydrocarbon ring formed by combining C_C_C_C_C at which R 15 and R 2 ° are adjacent to each other include those having 5 to 7 carbon atoms, and specific examples thereof include cyclopentane And a benzene ring, a cyclohexadiene ring, a cyclohexadiene ring and the like.
- substituents of the heterocyclic ring formed together with are the same or different:!
- substituents specifically, a hydroxyl group, a carboxyl group, a sulfo group, a phosphono acid group
- the halogen atom, the alkyl group and the alkoxy group each have the same meaning as described above, and the alkyl portion of the alkyl-substituted amino group has the same meaning as the above-mentioned alkyl group.
- Examples of the substituent of the alkyl group and the alkoxyl group include the same or different:! To 3 substituents, specifically, a hydroxyl group, a carboxyl group, a sulfo group, a phosphono group, a halogen atom, an alkoxyl group. And the like.
- the halogen atom and the alkoxyl group are as defined above.
- the squarylium compound (I) can be produced by a known method (WO01 / 44233 and the like) or according to them.
- squarylium compound (I) of the present invention Specific examples are shown in Table 1.
- the squarylium compound (I) of the present invention is not limited thereto.
- Me represents a methyl group
- Et represents an ethyl group
- Bu represents a butyl group.
- the photoelectric conversion material of the present invention contains a squarylium compound (I) and a semiconductor.
- the photoelectric conversion element of the present invention comprises a conductive support, a semiconductor thin-film electrode made of a semiconductor sensitized by the square compound (I) provided on the conductive support, a charge transfer layer, a counter electrode, and the like. You.
- the photoelectrochemical cell of the present invention is such that the photoelectric conversion element can be used in a battery application for performing work in an external circuit. That is, the photoelectrochemical battery of the present invention allows an external circuit connected to the conductive support and the counter electrode of the photoelectric conversion element of the present invention via a lead to perform work.
- the side surface of the photoelectrochemical cell is sealed with a polymer, an adhesive, or the like in order to prevent deterioration of components and volatilization of the electrolyte used for the charge transfer layer.
- the semiconductor used for the photoelectric conversion material is a so-called photoreceptor, which plays a role of absorbing light and being separated into charges and generating electrons and holes. In a semiconductor sensitized by the squarylium compound (I), light absorption and the resulting generation of electrons and holes are mainly caused by the squarylium compound (I).
- the semiconductor is responsible for receiving and transmitting this electron.
- the semiconductor is not particularly limited.
- a single semiconductor such as titanium oxide, indium oxide, tin oxide, bismuth oxide, zirconium oxide, tantalum oxide, niobium oxide, tandatin oxide, iron oxide, gallium oxide, and nickel oxide can be used.
- Complex oxides such as monometal oxides, strontium titanate, barium titanate, potassium niobate, and sodium tantalate; metal halides such as silver iodide, silver bromide, copper iodide, and copper bromide; zinc sulfide , Titanium sulfide, indium sulfide, bismuth sulfide, cadmium sulfide, zirconium sulfide, tantalum sulfide, silver sulfide, tin sulfide, tungsten sulfide, molybdenum sulfide, selenium cadmium, dinoleconium selenide, zinc selenide, titanium selenide, Indium selenide, tungsten selenide, molybdenum selenide, Ren bismuth, cadmium telluride, tellurium, tungsten, tellurium, molybdenum, zinc telluride, chalcogen
- the above semiconductors are used alone or in combination of two or more.
- Semiconductor thin films can be manufactured using the above-mentioned semiconductors, which are preferably compound semiconductors having a nanoporous structure composed of nanoparticles [Journal of American 'Ceramic' Society (Journal of American Ceramic Society) ”, 1997, Vol. 80, No. 12, p. 3157].
- the semiconductor thin film electrode used in the photoelectric conversion element of the present invention is, for example, a transparent electrode is prepared as a conductive support, a semiconductor thin film is laminated thereon, and the squarylium compound ( It can be produced by adsorbing I).
- any conductive material may be used.
- a transparent or translucent glass substrate or a plastic plate may be formed on a transparent or translucent glass substrate or a plastic plate, such as fluorine- or antimony-doped tin oxide, tin-doped indium oxide, or zinc oxide.
- a conductive transparent oxide semiconductor thin film preferably one coated with a fluorine-doped tin oxide thin film or the like is used.
- Examples of a method of placing the compound semiconductor on the conductive support include a method of applying a dispersion or colloid solution of the compound semiconductor on the conductive support, and the like. Method, dip method, air knife method, blade method, spin method, spray method and the like.
- the compound semiconductor is preferably subjected to a heat treatment in order to electronically contact the semiconductor fine particles after application to the conductive support, and to improve the strength of the coating film and the adhesion to the support. Les ,.
- the preferred range of the heat treatment temperature is 100 to 600 ° C.
- the heat treatment time is 10 minutes to 10 hours. If a conductive support with a low melting point or softening point such as a polymer film is used, high-temperature treatment will cause deterioration of the support, so use small semiconductor particles of 5 nm or less together.
- ⁇ Heat treatment in the presence of mineral acid A method in which a mixture of a dispersion or colloidal solution of a compound semiconductor and a titanium salt (for example, titanium tetrachloride) is applied to a conductive support and then subjected to hydrothermal treatment, and the compound semiconductor is treated with a polar organic solvent (for example, tert. —Butanol, etc.) and electrophoretic deposition by electrophoresis; applying a dispersion or colloidal solution of a compound semiconductor to a conductive support; and pressing under a pressure of about 98070 kPa; After applying the dispersion or colloidal solution to the conductive support, a method of irradiating a microwave of about 28 GHz or the like is used.
- the thickness of the semiconductor thin film is preferably 0.1 to 100 / im, more preferably 2 to 25 / im.
- the adsorption of the squarylium compound (I) onto the semiconductor thin film is carried out by immersing the semiconductor thin film applied to the support in a squarylium compound (I) solution, at room temperature for 1 minute to 2 days, or under heating conditions. It can be performed by leaving it for 1 minute to 24 hours.
- the solvent used when the squarylium compound (I) is adsorbed on the semiconductor thin film is not particularly limited as long as it dissolves the squarylium compound (I). Examples thereof include alcohol solvents such as methanol and ethanol, and benzene. Examples thereof include hydrocarbon solvents, organic solvents such as tetrahydrofuran, and acetonitrile, and the like.
- a mixed solvent thereof is also preferable, and acetonitrile and the like are preferable.
- the concentration of the squarylium compound (I) solution is preferably 0.1 Olmmol / 1 or more. More preferably, it is mmol / 1.
- a squarylium compound (I) and a known dye for example, a ruthenium complex dye, another organic dye (for example, a polymethine dye) or the like is used. You may use together.
- a steroid compound having a carboxy group for example, chenodeoxycholic acid
- an ultraviolet absorber may be used in combination.
- the charge transfer layer is a layer having a function of replenishing the oxidized form of the squarylium compound (I) with electrons.
- the squarylium compound (I) that has absorbed light emits electrons by a sensitizing effect. Converted to oxidized form].
- Examples of the charge transfer layer used in the photoelectric conversion device of the present invention include a liquid (electrolyte solution) in which a redox ion pair is dissolved in an organic solvent, a gel electrolyte in which a liquid in which a reddots ion pair is dissolved in an organic solvent, and a polymer, Examples include a molten salt containing a redox ion pair, a solid electrolyte, an inorganic compound semiconductor, and an organic hole transport material.
- Examples of the redox ion pair include iodine redox, bromine redox, iron redox, tin redox, chromium redox, vanadium redox, sulfide ion redox, and anthraquinone redox. .
- iodine redox a mixture of iodine with an imidazolym iodide derivative, lithium iodide, potassium iodide, a tetraalkylammonium iodide salt, and the like
- bromine redox an imidazolyl bromide derivative
- bromine redox an imidazolyl bromide derivative
- bromine redox an imidazolyl bromide derivative
- mixtures of bromine with lithium bromide, potassium bromide, tetraalkylammonium bromide salts and the like a mixture of lithium iodide, an imidazonium iodide derivative and the like and iodine is preferred.
- the organic solvent that dissolves the redox ion pair is not limited as long as it is a solvent that is stable and dissolves the redox ion pair.
- acetonitrile, methoxyacetonitrile, propionitrile, methoxypropionyl Organic solvents such as tolyl, ethylene carbonate, propylene carbonate, dimethylsulfoxide, dimethylformamide, tetrahydrofuran, nitromethane, etc., may be used.A mixture of these solvents may be used, and acetonitrile, methoxyacetonitrile, propionitrile, methyl Toxipropionitrile and the like.
- Redox ion pair concentration in the electrolyte The degree is preferably 0.01 to 5.0 mol / l, more preferably 0.05 to: 1. Omol / 1.
- the electrolytic solution may contain a basic compound such as tert-butylpyridine, 2-picoline, or 2,6-lutidine.
- concentration of the basic compound is preferably from 0.01 to 5. Omol / 1, more preferably from 0 :! to 1. OmolZl.
- Examples of the polymer used for the gel electrolyte include polyacrylonitrile and polyvinylidene fluoride.
- Examples of the molten salt include 1-butyl-3-methylpyridinium iodide, 1-butyl-3-methyl-imidazolidimoxide, lithium iodide, lithium acetate, lithium perchlorate and the like. Titanium salts and the like, and a polymer such as polyethylene oxide may be mixed with them to increase the fluidity at room temperature.
- solid electrolyte examples include polymers such as polyethylene oxide derivatives.
- Examples of the inorganic compound semiconductor include copper iodide, copper bromide, copper thiocyanate and the like.
- the inorganic compound semiconductor may contain a molten salt such as triethylammonium thiocyanate.
- organic hole transport material examples include a polythiophene derivative and a polypyrrole derivative.
- a titanium dioxide thin film may be applied as an undercoat layer (short-circuit prevention layer) using a technique such as spray pyrolysis to prevent a short circuit.
- a normal pressure process utilizing the capillary phenomenon and a vacuum process of replacing the gas phase with a liquid phase at a pressure lower than normal pressure can be used.
- the wet charge transfer layer is provided with a counter electrode in an undried state, and measures are taken to prevent liquid leakage at the edge.
- a gel electrolyte there is also a method of applying by wet method and immobilizing by a method such as polymerization. In such a case, the gel electrolyte is dried and then immobilized. A pole can also be provided.
- the method of applying the electrolytic solution, the wet organic hole transport material or the gel electrolyte includes the immersion method, the roller method, the dipping method, the air knife method, the blade method, and the spinning method as in the case of applying the semiconductor thin film electrode and the dye.
- Method and spray method In the case of solid electrolytes, inorganic compound semiconductors, or solid organic hole transporting materials, these are dissolved in a solvent or the like and dropped on a heated semiconductor thin film electrode, and the solvent is evaporated on the semiconductor thin film electrode to dryness.
- a counter electrode can be provided after the solidified charge transfer layer is formed or the charge transfer layer is formed by a dry film forming process such as a vacuum evaporation method or a CVD method (chemical vapor deposition method).
- Examples of the counter electrode used in the photoelectric conversion element of the present invention include platinum, rhodium, ruthenium, carbon, and oxide semiconductor electrodes coated in a thin film on a conductive substrate. Platinum, carbon electrode, etc. coated in a thin film on a conductive substrate are preferred.
- the photoelectric conversion element of the present invention there is no limitation as long as it prevents contact between the semiconductor thin film electrode and the counter electrode, which can be performed by using a spacer.
- a polymer film such as polyethylene is used. .
- the squarylium compound (I) used in the present invention is inexpensive.
- a transparent conductive glass manufactured by Nippon Sheet Glass, surface resistance is about 15 ⁇ / cm 2
- fluorine-doped tin oxide has a titanium dioxide paste (manufactured by Solaronix, SA
- Ti-Nanoxide T was applied using a glass rod, dried at room temperature for 30 minutes, and baked in an electric furnace at 450 ° C for 30 minutes. The thickness of the titanium dioxide was 10 ⁇ m. After the glass was taken out and cooled, it was immersed in an acetonitrile solution of compound (1) (0.1 mmol Zl) at 75 ° C for 30 minutes. The dye-adsorbed glass was washed with acetonitrile and air-dried.
- the titanium dioxide electrode substrate (1cm x 3cm) prepared as described above was overlaid with platinum-evaporated glass of the same size.
- the electrolyte solution acetonitrile solution containing 0.05 mol / l of iodine, 0.1 mol / l of lithium iodide, 0.62 mol / l of dimethylpropylimidazolyl iodine, and 0.5 mol / l of tert-butylpyridine
- This photoelectrochemical cell was irradiated with 100 mW / cm 2 simulated sunlight using a 500 W xenon short arc lamp (manufactured by Shio Electric), and its characteristics were evaluated using an IV curve tracer (manufactured by Eiko Seiki). .
- the characteristics of the photoelectrochemical cell obtained were as follows: short-circuit current density 4.70 mA / cm 2 , open-circuit voltage 0.59 V, form factor (fill fatter) 0.54, and energy conversion efficiency 1.5%. .
- a transparent conductive glass manufactured by Nippon Sheet Glass, surface resistance is about 15 Q / cm 2
- fluorine-doped tin oxide has a titanium dioxide paste (manufactured by Solaronix, SA
- Ti-Nanoxide T was applied using a glass rod, dried at room temperature for 30 minutes, and baked in an electric furnace at 450 ° C for 30 minutes. The thickness of the titanium dioxide was 10 ⁇ . After the glass was taken out and cooled, it was immersed in an acetonitrile solution of compound (2) (0.1 mmol / 1) at 75 ° C for 30 minutes. The dye-adsorbed glass was washed with acetonitrile and air-dried.
- the titanium dioxide electrode substrate (lcm x 3cm) prepared as described above was superimposed on platinum-evaporated glass of the same size.
- the electrolyte solution acetonitrile solution containing 0.05 mol / l of iodine, 0.1 mol / l of lithium iodide, 0.62 mol / l of dimethylpropylimidazolyl iodine, and 0.5 mol / l of tert-butylpyridine
- a photoelectrochemical cell was obtained by introducing the gap between the two glasses between the titanium dioxide electrode and the counter electrode by utilizing the capillary phenomenon.
- This photoelectrochemical cell was irradiated with 100 mW / cm 2 simulated sunlight using a 500 W xenon short arc lamp (manufactured by Shio Electric), and its characteristics were evaluated using an IV curve tracer (manufactured by Eiko Seiki). .
- the characteristics of the photoelectrochemical cell obtained were a short circuit current density of 6.15 mA / cm 2 , an open circuit voltage of 0.57 V, a form factor (fill film) of 0.55, and an energy conversion efficiency of 1.9%. .
- a transparent conductive glass manufactured by Nippon Sheet Glass, surface resistance is about 15 Q / cm 2
- fluorine-doped tin oxide has a titanium dioxide paste (manufactured by Solaronix, SA) on the conductive surface side.
- Ti-Nanoxide T was applied using a glass rod, dried at room temperature for 30 minutes, and baked in an electric furnace at 450 ° C for 30 minutes. The thickness of the titanium dioxide was 10 ⁇ . After the glass is taken out and cooled, it is added to a solution of compound (3) in acetonitrile (0.1 mmole) at 75 ° C for 30 minutes. Soak for minutes. The dye-adsorbed glass was washed with acetonitrile and air-dried.
- the titanium dioxide electrode substrate (1 cm ⁇ 3 cm) prepared as described above was superimposed on a platinum-deposited glass of the same size.
- an electrolytic solution acetonitrile solution containing 0.05 mol / l of iodine, 0.1 mol / l of lithium iodide, 0.62 mol of dimethylpropylimidazolyl iodine and 0.5 mol / l of tert-butylpyridine
- the photoelectrochemical cell was obtained by introducing into the titanium dioxide electrode and between the counter electrodes by utilizing the capillary phenomenon in the gap between the electrodes.
- the photoelectrochemical cell was irradiated with a 500 W xenon short arc lamp (manufactured by Shio Denki), simulated sunlight of 100 mWZcm 2 , and its characteristics were evaluated with an IV curve tracer (manufactured by Eiko Seiki).
- the characteristics of the photoelectrochemical cell obtained were as follows: short-circuit current density 6.54 mA / cm 2 , open-circuit voltage 0.58 V, form factor (one fill factor) 0.56, and energy conversion efficiency 2.2%.
- a photoelectric conversion element having low cost and high energy conversion efficiency, a photoelectrochemical cell using the same, and the like are provided.
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JP2006514558A JPWO2005122320A1 (ja) | 2004-06-09 | 2005-06-09 | 光電変換材料、光電変換素子および光電気化学電池 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2009133806A1 (ja) * | 2008-05-02 | 2009-11-05 | ペクセル・テクノロジーズ株式会社 | 色素増感型光電変換素子 |
WO2010049042A2 (en) * | 2008-10-27 | 2010-05-06 | Sony Corporation | A dye comprising a chromophore to which an acyloin group is attached |
WO2016120166A1 (en) * | 2015-01-27 | 2016-08-04 | Sony Corporation | Squaraine-based molecules as material for organic photoelectric conversion layers in organic photodiodes |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009133806A1 (ja) * | 2008-05-02 | 2009-11-05 | ペクセル・テクノロジーズ株式会社 | 色素増感型光電変換素子 |
JP5479327B2 (ja) * | 2008-05-02 | 2014-04-23 | ペクセル・テクノロジーズ株式会社 | 色素増感型光電変換素子 |
WO2010049042A2 (en) * | 2008-10-27 | 2010-05-06 | Sony Corporation | A dye comprising a chromophore to which an acyloin group is attached |
WO2010049042A3 (en) * | 2008-10-27 | 2010-10-07 | Sony Corporation | A dye comprising a chromophore to which an acyloin group is attached |
CN102197097A (zh) * | 2008-10-27 | 2011-09-21 | 索尼公司 | 包含连接有偶姻基团的发色团的染料 |
JP2012506917A (ja) * | 2008-10-27 | 2012-03-22 | ソニー株式会社 | アシロイン基が付着した発色団を含む色素 |
US9679702B2 (en) | 2008-10-27 | 2017-06-13 | Sony Corporation | Dye comprising a chromophore to which an acyloin group is attached |
WO2016120166A1 (en) * | 2015-01-27 | 2016-08-04 | Sony Corporation | Squaraine-based molecules as material for organic photoelectric conversion layers in organic photodiodes |
US11352500B2 (en) | 2015-01-27 | 2022-06-07 | Sony Corporation | Squaraine-based molecules as material for organic photoelectric conversion layers in organic photodiodes |
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