WO2005061762A1 - ナノアレイ電極の製造方法およびそれを用いた光電変換素子 - Google Patents
ナノアレイ電極の製造方法およびそれを用いた光電変換素子 Download PDFInfo
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- WO2005061762A1 WO2005061762A1 PCT/JP2004/016471 JP2004016471W WO2005061762A1 WO 2005061762 A1 WO2005061762 A1 WO 2005061762A1 JP 2004016471 W JP2004016471 W JP 2004016471W WO 2005061762 A1 WO2005061762 A1 WO 2005061762A1
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- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical class C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000005546 reactive sputtering Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
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- 230000004043 responsiveness Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 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
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 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
- 238000000926 separation method Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229940045105 silver iodide Drugs 0.000 description 1
- 230000005476 size effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 150000003385 sodium Polymers 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000004963 sulfonylalkyl group Chemical group 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 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
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 125000005628 tolylene group Chemical group 0.000 description 1
- JFLKFZNIIQFQBS-FNCQTZNRSA-N trans,trans-1,4-Diphenyl-1,3-butadiene Chemical group C=1C=CC=CC=1\C=C\C=C\C1=CC=CC=C1 JFLKFZNIIQFQBS-FNCQTZNRSA-N 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- HSMVPDGQOIQYSR-KGENOOAVSA-N triflumizole Chemical compound C1=CN=CN1C(/COCCC)=N/C1=CC=C(Cl)C=C1C(F)(F)F HSMVPDGQOIQYSR-KGENOOAVSA-N 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 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
- 229920001959 vinylidene polymer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- 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
- H01L31/0248—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 characterised by their semiconductor bodies
- H01L31/0352—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 characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/045—Anodisation of aluminium or alloys based thereon for forming AAO templates
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
-
- 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
- H01L31/0248—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 characterised by their semiconductor bodies
- H01L31/0352—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 characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
- H01L31/035272—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 characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions characterised by at least one potential jump barrier or surface barrier
- H01L31/03529—Shape of the potential jump barrier or surface barrier
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/701—Organic molecular electronic devices
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a novel method for producing a nanoarray electrode with a controlled nanostructure and a photoelectric conversion element using the same.
- a functional electrode in which a semiconductor is formed on a substrate provided with a conductive film is used.
- Semiconductors respond to external stimuli such as heat, light, and temperature, and depending on the environment, electronic devices such as phonons or their complexes are formed. If the semiconductor layer is composed of semiconductor fine particles when these propagate through the semiconductor, these elementary excited states are deactivated due to scattering of the fine particles among the agglomerates. This is a problem in improving the particle size, and reducing the scattering of fine particles by agglomerates is an important issue.
- titanium oxide is most often used as a semiconductor material in dye-sensitized solar cells (for example, see Non-Patent Document 1).
- This solar cell uses a functional electrode in which titanium oxide particles of several tens of nanometers are formed on a transparent conductive substrate and a dye is adsorbed on the film. It has been reported that in this functional electrode, the light conversion efficiency greatly depends on the structure of the titanium oxide layer, such as the particle shape of the titanium oxide and the bonding state of the particles. The portion where the titanium oxide particles are bonded to each other is an obstacle for the photo-generated electrons to move through the titanium oxide layer toward the transparent conductive substrate.
- Patent Document 1 U.S. Pat.No. 5,454,880
- Patent Document 2 U.S. Pat.No. 5,331,183
- Non Patent Literature 1 B. O'Regan, M. Gratzel, “Nature”, (UK), 1999, Vol. 353, p. 737
- Non-patent document 2 Won (MS Won), Yen (Esther S. Jeng), Jin (Jackie Y. Ying), "Nano Letters J, (USA), 2001, Vol. 1 , P. 637
- Non-Patent Document 3 M. Ohtaki, et al., “Journal of American Chemical Sciety”, (USA), 1.998, No. 120 Vol., P. 6832
- Non-Patent Document 4 Yata, M. Mihara, S. Mouri, S. Kuroki, M. Kuroki, T. Kijima, Advanced Materials (Advanced Materials) ) ", (USA), 2002, Vol. 14, p. 309
- Non-Patent Document 6 Zhao (W. Zhao), Sun (Y. Sun), Ma (Q. Ma), Fan (Y.
- Non Patent Literature 7 Antonelli (DM, Antonelli), "Microporous and Mesoporous Materials", (USA), 1999, Vol. 30, p. 31 Five
- Non-Patent Document 8 H. Imai, Yuko Takei, Shimizu, Manabu Matsuda, Hiroshi Hirashima,
- the present invention has been made in view of such circumstances, and has as its object to provide a novel method for manufacturing a nanoarray electrode with a controlled nanostructure and a high-performance and high-efficiency photoelectric conversion element using the same. .
- the present invention relates to a method for producing a nanoarray electrode characterized by embedding an electrode material in pores of an anodized porous alumina film obtained by anodizing aluminum in an electrolytic solution.
- the present invention provides a nanoarray obtained by embedding a material in pores of an anodized porous alumina film obtained by anodizing aluminum in an electrolytic solution and removing the anodized porous alumina film.
- the present invention relates to a method for producing a nanoarray electrode, characterized by embedding an electrode material in pores.
- the present invention relates to a method for producing a nanoarray electrode, wherein a plurality of electrode materials are embedded by repeating an operation of embedding an electrode material in pores of an anodized porous alumina film.
- the present invention also provides a compound having an electron-accepting structure in the pores of an anodized porous alumina film or an electron-donating compound obtained by anodizing aluminum laminated on a transparent conductive layer of a transparent conductive substrate in an electrolytic solution. After embedding the compound having the structure, the anodic oxide porous alumina film is removed, and the nanoarray is electron-accepted in the pores of the obtained compound having the electron-accepting structure or the compound having the electron-donating structure.
- the present invention relates to a method for producing a nanoarray electrode, which comprises embedding a compound having an electron donating structure in the case of an electron-donating structure and a compound having an electron-accepting structure in the case of a nanoarray having an electron donating structure.
- the present invention relates to a photoelectric conversion device using a nanoarray electrode manufactured by any of the above-described methods.
- the present invention will be described in detail.
- the nanoarray electrode of the present invention is characterized in that an anodized porous alumina film obtained by anodizing aluminum in an electrolytic solution is formed as a ⁇ type.
- the aluminum used for the anodization is not particularly limited as long as it contains aluminum.Aluminum metal or aluminum with chromium, nickel, iron, silicon, copper, manganese, magnesium, zinc, titanium, magnesium, etc. An alloy is used.
- the shape is not particularly limited, and examples thereof include a plate shape and a foil shape. Further, the above-described metal material including aluminum can be used by being laminated on a substrate material such as glass.
- the substrate material is not particularly limited, and the transparency, material, thickness, dimensions, shape, and the like can be appropriately selected according to the purpose.
- colorless or colored glass, meshed glass, glass block, or wood , Stone and the like are used.
- colorless or colored resins may be used.
- polyesters such as polyethylene terephthalate, polyamide, polysulfone, polyether sulfone, polyether ketone, polyphenylene sulfide, polycarbonate, polyimide, polymethyl methacrylate, Examples include polystyrene, senorellose triacetate, and polymethinolepentene.
- the transparency in the present invention means having a transmittance of 10 to 100%, preferably having a transmittance of 50% or more.
- an electrode layer can be formed on the substrate in order to impart conductivity to the substrate material.
- the electrode layer is not particularly limited, and examples thereof include a metal thin film such as gold, silver, chromium, copper, tungsten, and platinum, and a conductive film made of a metal oxide.
- a metal oxide such as tin, zinc, another metal element was microinjected de-loop Indium Tin Oxide (I TO (I n 2 O 3: S n)), Fluorine doped Tin Oxide used as is preferred, such as (FTO (S n O 2: F)), Aluminum doped Zinc Oxide (AZO (Z n O:: A l)), Indium doped Zinc Oxide (I n) IZO (Z nO) .
- I TO Indium Tin Oxide
- F Fluorine doped Tin Oxide used as is preferred, such as (FTO (S n O 2: F)), Aluminum doped Zinc Oxide (AZO (Z n O:: A l)), Indium doped Zinc Oxide (I n) IZO (Z nO) .
- the thickness of the electrode layer is not particularly limited, but is usually 50 to 5000 nm, preferably 100 to 3000 nm.
- the surface resistance (resistivity) is not particularly limited, but is usually 0.5 to 500 ⁇ / sq, preferably 2 to 50 ⁇ / sq.
- the method for forming the electrode layer is not particularly limited, and a known method can be appropriately selected and used depending on the type of the metal-metal oxide used as the electrode layer. Usually, a vacuum film forming method such as a vacuum deposition method, an ion plating method, a CVD or sputtering method, and a wet film forming method such as an electrodeposition method, an electrophoresis method, an electroplating method, and an electroless plating method are used.
- the film is formed within a substrate temperature range of 20 to 700 ° C.
- the substrate temperature is within a range of 20 to 300 ° C. Is desirable.
- the electrolytic solution used for the anodic oxidation is not particularly limited as long as it has a dissolving power for aluminum formed by anodic oxidation of aluminum, and an acidic aqueous solution, an alkaline aqueous solution, and a non-aqueous electrolytic solution can be used.
- the acidic aqueous solution is not particularly limited as long as it is acidic enough to dissolve alumina generated by anodic oxidation of aluminum, but various aqueous solutions such as sulfuric acid, oxalic acid, phosphoric acid, boric acid, nitric acid, acetic acid, or a mixture thereof. Is used.
- the pH of the acidic aqueous solution is preferably from 0.01 to 5, preferably from 0.1 to 3.
- the alkaline aqueous solution is not particularly limited as long as it has an ability to dissolve alumina generated by anodic oxidation of aluminum, but is not limited to sodium hydroxide, potassium hydroxide, calcium hydroxide, lithium hydroxide, magnesium hydroxide, Aqueous solutions such as lithium carbonate, sodium carbonate, potassium carbonate, calcium carbonate, magnesium carbonate, lithium hydrogen carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, calcium hydrogen carbonate, magnesium hydrogen carbonate, and mixtures thereof are used.
- the pH of the aqueous solution is preferably from 8 to 14, preferably from 9 to 13.
- any solvent generally used for electrochemical cells and batteries can be used. Specifically, acetic anhydride, methanol, ethanol, tetrahydrofuran, propylene carbonate, nitromethane, acetonitril, dimethylformamide, dimethylsulfoxide, hexamethylphosphamide, ethylene carbonate, dimethoxetane, ⁇ -butyrolatatone, Gamma-ray mouth ratatone, sulfolane, dimethoxetane, propionnitrile, glutaronitrile, adiponitrile, methoxyacetonitrile, dimethylacetamide, methylpyrrolidinone, dimethylsulfoxide, dioxolane, sulfolane, trimethyl phosphate Triethyl ester, tripropyl phosphate, ethyl dimethyl phosphate, Tryptyl phosphate, tripentyl
- propylene carbonate ethylene carbonate, dimethyl sulfoxide, dimethoxetane, acetonitrile, petit mouth ratatone, sulfolane, dioxolan, dimethylformamide, dimethoxetane, tetrahydrofuran, adiponitrile, methoxyacetonitrile, methoxypropionitrile.
- Preferred are dimethylacetamide, methylpyrrolidinone, dimethylsulfoxide, dioxolan, sulfolane, trimethyl phosphate and triethyl phosphate.
- Room temperature molten salts can also be used.
- the room temperature molten salt is a salt composed of an ion pair that is molten at room temperature (that is, in a liquid state), and usually has a melting point of 20 ° C or less and a temperature exceeding 20 ° C. It indicates a salt composed of a liquid ion pair.
- the room temperature molten salt include, for example, the following.
- R represents an alkyl group having 2 to 20 carbon atoms, preferably 2 to 10 carbon atoms, and X 1 represents a halogen ion or SCN—
- R 1 and R 2 each represent an alkyl group having 1 to 10 carbon atoms (preferably a methyl group or an ethyl group), or an aralkyl group having 7 to 20 carbon atoms, preferably 7 to 13 carbon atoms (preferably Represents a benzyl group), and may be the same or different from each other.
- X— represents a halogen ion or SCN—.
- R1, R2, R3, and R4 each represent an alkyl group having 1 or more carbon atoms, preferably an alkyl group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms (such as a fuel group), or a methyl group.
- solvent one kind may be used alone, or two or more kinds may be used in combination.
- a supporting electrolyte may be added as required.
- the supporting electrolyte salts, acids, alkalis, and room-temperature molten salts commonly used in the field of batteries can be used in the field of electrochemistry.
- the salts are not particularly limited, and examples thereof include inorganic ion salts such as alkali metal salts and alkaline earth metal salts; quaternary ammonium salts; cyclic quaternary ammonium salts; and quaternary phosphonium salts. Salt is preferred.
- salts C 10 4 -, B'F 4 one, CF 3 SO 3 one, (CF 3 S0 2) 2 N -, (C 2 F 5 S_ ⁇ 2) 2 N -, PF 6 - , a s F 6 -, CH 3 COO-, CH 3 (C 6 H 4) S0 3 _, and (C 2 F 5 S_ ⁇ 2) L i salts with pairs Anion selected from 3 C-, Na salt Or K salt.
- the acids are also not particularly limited, and inorganic acids and organic acids can be used, and specific examples thereof include sulfuric acid, nitric acid, acetic acid, hydrochloric acid, boric acid, oxalic acid, phosphoric acids, sulfonic acids, and carboxylic acids.
- the alkalis are not particularly limited, and any of sodium hydroxide, potassium hydroxide, lithium hydroxide and the like can be used.
- the anodized porous alumina film used in the present invention is obtained by anodizing a material containing aluminum in the above-mentioned electrolytic solution.
- the cathode used in the anodic oxidation is not particularly limited, and examples thereof include a metal plate such as graphite, glassy carbon, platinum, chromium, and US.
- the temperature for performing anodic oxidation is not particularly limited, and is preferably about ⁇ 40 to 100 ° C. Further, the voltage for performing anodic oxidation is not particularly limited, but is preferably about 1 to 300 V.
- the time for performing the anodization varies depending on the electrolytic solution used, the voltage to be applied, and the thickness of the ⁇ type to be formed, but is preferably about 1 minute to 100 hours.
- the first anodized film is partially dissolved and then anodized again, or the surface of the material to be anodized is re-used. Concave with the desired regularity After forming the protrusions, it is preferable to perform anodic oxidation.
- the method for producing a nanoarray electrode according to the present invention includes the following steps: (A) anodic porous alumina film prepared by embedding an electrode material in the pores of the anodic porous alumina film. And (B) a method in which a material is embedded in pores of an anodized porous alumina film, and then an electrode material is embedded in pores of a nanoarray produced by removing the anodized porous alumina film.
- A there is a case where the ⁇ -shaped anodized porous alumina film is left (A-1) and a case where it is removed (A-2).
- A-1 there is a case where the ⁇ -shaped anodized porous alumina film is left (A-1) and a case where it is removed (A-2).
- Figure 1 shows a schematic diagram of the nanoarray electrodes produced in each case.
- an electrode material is embedded in the pores of the anodic-oxide porous alumina film, is not particularly limited, gold, silver, Eckel, platinum, chromium, and tungsten, such as copper metal, T i 0 2, W0 3 , Z nO, Nb 2 0 5, Z n S , S n0 2, S I_ ⁇ 2, S i, P b S , C d S, F e!
- inorganic semiconductor material such as or polyunsaturated
- We two vinylene Conjugated organic substances such as len (PPV) and polythiophene, or organic substances in which conjugated substances are bonded by non-conjugated chains, or compounds having an electron-donating molecular structure and an electron-accepting molecular structure.
- an organic semiconductor material such as at least constituted polymer compounds and a polymer Interview knit comprising Porimayuni Tsu bets and an electron-accepting molecular structure comprising an electron-donating molecular structure.
- the electron-donating molecular structure means that the ionization potential is small and other molecules
- An electron-accepting molecular structure refers to a structure that supplies electrons to itself and tends to become a positive ion.An electron-accepting molecular structure has a high electron affinity, accepts electrons from other molecules, and turns itself into a negative ion state. Refers to a structure that exhibits a tendency to become easily formed.
- the properties of the electron-accepting or electron-donating property are relative to those used.
- the combination of the compounds satisfying those properties is selected as appropriate.
- the molecular structure having an electron-donating property used in the present invention is not particularly limited as long as it has an electron-donating property in the molecular structure portion, and examples thereof include an amine structure, a meta-mouth structure, and a polyarylene. Examples include a vinylene structure, a polyaniline structure, a polythiophene structure, a polypyrrole structure, and a polyamine structure.
- the molecular structure having an electron accepting property is not particularly limited as long as it has an electron accepting property, and examples thereof include a porogen structure, a perylene structure, and a fullerene structure.
- Specific examples of the compound having an electron-accepting molecular structure include those represented by the following formulas (1) to (20), and examples of the compound having an electron-donating molecular structure include the following formulas (21) to (21). (63) The following can be mentioned.
- ⁇ (63), 1 ⁇ ⁇ 1 6 ° (1 ⁇ excluding ° Oyopi 1 12) may be respectively same as or different from each other, each independently, 'hydrogen atom, a linear or It represents a branched alkyl group having 1 to 10 carbon atoms, an alkyl group, an alkoxyl group, or an aryl group, an aralkyl group or an aryloxy group having 6 to 12 carbon atoms.
- R 44 is combined with Shikurobe Ntajeniru ring, it may form a ring, different Ru Shikuropentaji E together - may form a group crosslinking Le ring. +
- R 1 Q and R 12 may be the same or different and each independently represents a hydrogen atom, a halogen atom, a cyano group, a nitro group, a hydroxyl group, an amino group, a carboxyl group, an acetyl group, a formyl group, a linear or It represents a branched alkyl group having 1 to 10 carbon atoms, an alkenyl group, an alkoxyl group, an alkylthio group, an alkyloxycarbonyl group, or an aryl group, an aralkyl group, or an aryloxy group having 6 to 12 carbon atoms.
- a one contact Yopi B- may each be the same or different, in each individual, Harogenani on, C 1 one, BF 4 one, PF 6 -, CH 3 COO one contact Yopi CH. (C 6 H 4 ) SO. Shows an anion selected from one.
- M and n each represent an integer of 1 to: 1000, preferably 2 to 500; k and 1 each represent the number of substitutable cyclic hydrocarbon groups; Range.
- M 1 represents a metal atom such as Cu, Zn, Co, Fe, Ti, Mg, Ni, Mo, Os, and Ru.
- M 2 represents L i, Na, Mg, alkali metal or alkaline earth metal such as C a.
- M 3 represents C r, C o, F e , Mg, N i, O s, Ru, V, X- H f - Y, X- Mo- Y, X_Nb- Y, X- T i- Y, chromatography over ⁇ or X—Z r—Y.
- X and Y represent hydrogen, halogen, or an alkyl group, alkenyl group, alkoxy group, aryl group or aralkyl group having 1 to 12 carbon atoms, which may be the same or different.
- alkyl group examples include a methyl group, an ethyl group, a propyl group, an i-propyl group, a butyl group, an s-butyl group, a t-butyl group, a pentyl group, an isopentyl group, a neopentyl group and a t-pentyl group. Hexyl group, isohexyl group, heptyl group, octyl group, norl group, decyl group, and the like.
- alkenyl group examples include a butyl group, an aryl group, an isopropyl group, a butenyl group, and a pentenyl group.
- Group, hexenyl group, etc., and the alkoxy group includes methoxy, ethoxy, popoxy, i-propoxy, butoxy, s-butoxy, t-butoxy, pentoxy, and isopentoxy.
- aryl group include phenyl group, xylyl group, tolyl group, tamyl group, naphthyl group, etc., and aralkyl group is benzyl group. And an aryloxy group, such as a phenoxy group and a tolyloxy group.
- the compound having an electron-accepting molecular structure and the compound having an electron-donating molecular structure include polyacetylene, polypyrrole, polypyridine, poly-p-phenylene, poly-p-phenylene sulfide, and polyphenylene bi-. Ren, polyacetylene, polypyrrole, polypyridine, poly-p-phenylene, poly-p-phenylene sulfide, and polyphenylene bi-. Ren, poly
- Suitable combinations of the electron-accepting molecular structure and the electron-donating molecular structure include a fullerene derivative (formula (3)), a poly (phenylene bielene) derivative (formula (42)), and a cyano group-containing poly.
- the structure having the electron accepting property or the electron donating property has a carrier moving ability. Whether or not these structures have the ability to carry a carrier can be easily determined by an ordinary method. For example, it can be discriminated by producing a homopolymer consisting mostly of these structures and measuring the carrier mobility by the time-of-flight method (for example, Jpn. J. Appl. Phys., Vol. 38, pp. L1188 (1999), etc.). Usually, Kiyaria mobility 10 one 7 ⁇ 10 3 cm 2 / V ⁇ s, preferably of the order of 10- 6 ⁇ 10 cm 2 / V ⁇ s is preferable.
- anodization of aluminum laminated on a transparent conductive layer of a transparent conductive substrate in an electrolytic solution is performed.
- the anodized porous alumina film is removed, and the resulting nanoarray comprising a compound having an electron accepting structure or a compound having an electron donating structure is obtained.
- the nanoarray has an electron accepting structure
- the compound having an electron donating structure is embedded in the pores
- the nanoarray has the electron donating structure
- the compound having the electron accepting structure is embedded in the pores, as shown in Fig. 2.
- a nanoarray electrode having a simple structure can be manufactured.
- the pore diameter (R) of the ⁇ -shaped anodized porous alumina film must be within 10 times (R ⁇ 10 L) the exciton diffusion length (L) of the organic semiconductor material to be embedded first. preferable. Furthermore, the exciton diffusion of the organic semiconductor material to be embedded next is calculated by subtracting the pore diameter of the anodized porous alumina film from the pitch of the anodized porous alumina film (P: interval between pores) (P: R). Long (L ') one It is preferably within 0 times (P-R ⁇ 10L '). In addition, as shown in Fig.
- each film thickness of the multilayer film (di : i is the number of multilayer films) i ⁇ 2 is an integer, and ⁇ di ⁇ R / 2) is within 10 times the exciton diffusion length (1 ⁇ ) of the organic semiconductor material constituting the film (di ⁇ 10L
- the exciton diffusion length is the distance that the exciton diffuses while the amount of exciton generated by light absorption becomes 1 / e.
- the value is the photoluminescent quenching of the electrode material. Is measured as a function of the film thickness.
- the electrode material to be embedded in the pores of the anodized porous alumina film is a block copolymer comprising at least a polymer unit having a molecular structure having an electron donating property and a polymer unit having a molecular structure having an electron accepting property. Coalescing may be used.
- the copolymer having these structures may be either a copolymer having these structures in the main chain or a copolymer having these structures in the side chain, but preferably, these structures are in the main chain. It is desirable that the copolymer has
- these structures are structures having a carrier transferability. Whether or not these structures have a carrier-moving ability can be easily determined by an ordinary method. For example, it can be discriminated by preparing a homopolymer composed mostly of these structures and measuring the carrier mobility by the time-of-flight method.
- the carrier mobility of 1 0- 7 ⁇ 1 0 3 cm 2 / V ⁇ s, preferably desirably of about 1 0- 6 ⁇ 1 0 cm 2 ZV . S.
- these structures are desirably those having conductivity, and can be discriminated by manufacturing a homopolymer having these structures, performing doping, and measuring the electric conductivity by an ordinary method. .
- electric conductivity 1 0 _ 6 ⁇ 1 0 6 SZ cm preferably desirably of about 1 0- 6 ⁇ 1 0 4 S / cm.
- micro phase separation structure refers to a phase separation structure in which the domain size of each phase composed of an electron donating phase or an electron accepting phase is several nm to several hundred nm (usually about 1 to 500 nm). Say something that has The domain size can be measured with an electron microscope or a scanning probe microscope.
- a thin film formed from the block copolymer It is preferable that the domain size of the microphase-separated structure be within 1 o times, preferably within 5 times, more preferably within 1 time of the exciton diffusion length.
- the value of the exciton diffusion length can be obtained by measuring the photoluminescent quenching of a polymer or oligomer RDI composed of each cut constituting the block copolymer as a function of its film thickness. Can be.
- the measured exciton diffusion length differs between the electron donating phase and the electron accepting phase, but generally takes a value of about 10 nm.
- the domain structure of the micro phase separation structure formed by the thin film is a continuous layer or a quantum well structure.
- the fact that the domain structure is a continuous layer means that, as shown in FIG. 4, either one of the domain structures consisting of the electron-donating phase or the electron-accepting phase in the block copolymer is continuous. Refers to a structure that is physically connected.
- the fact that the domain structure is a quantum well structure means that, as shown in FIG. 5 or FIG. 6, each domain structure comprising an electron donating phase or an electron accepting phase in a block copolymer is alternated. It refers to the state of a laminated structure.
- FIGS. 4, 5, and 6 are each typical, and a structure similar to these figures is also included as a meaning. More specifically, the block copolymers used in the present invention include those represented by the following general formulas (127) to (13.5).
- a and A ' are molecular groups having a molecular structure having an electron accepting property
- D and D' are molecular groups having a molecular structure having an electron donating property.
- R represents a polymer residue.
- R 9 and R 12 are each independently an alkylene group having 1 to 10 carbon atoms, an arylene group having 6 to 12 carbon atoms, or an alkylene group having 1 to 10 carbon atoms containing an oxygen atom or a nitrogen atom. Alternatively, it represents an arylene group having 6 to 12 carbon atoms.
- the alkylene group include a methylene group, an ethylene group, a trimethylene group, a tetramethylene group, and an isopropylene group.
- the arylene group include a phenylene group and a tolylene.
- 1, m and n in the formulas (136) to (156) are each independently usually 2 to: 10000, preferably 3 to 5000, and more preferably an integer in the range of 4 to 20000. It is.
- the molecular terminal groups of these copolymers vary depending on the production method, and are usually hydrogen, an alkyl group having 1 to 10 carbon atoms, an alkenyl group, an alkoxyl group or an aryl group having 6 to 12 carbon atoms, It is a hydrocarbon group such as an aralkyl group, an aryloxy group, and an aralkyl group.
- These copolymers can be easily obtained by a known method.
- the method for producing them is not particularly limited. For example, a condensation polymerization reaction of a dihalogen compound having a structure having an electron accepting property or a structure having an electron donating property with a strong base, a structure having an electron accepting property or a structure having an electron accepting property.
- Examples of the method include radical polymerization, aion polymerization, and cationic polymerization of a monomer compound having a structure having an electron donating property and having various polymerizable groups.
- the method for embedding the electrode material is not particularly limited, and may be a wet method such as solution immersion, electrodeposition, electrodeposition, electrolytic plating, electroless plating, liquid phase particle growth method, vacuum deposition, sputtering, CVD, etc. Dry method.
- the electrode material may be formed by embedding the electrode material precursor and then performing post-treatment such as polymerization and firing.
- the electrode material may be embedded either partially or entirely within the pore.
- a rod-shaped nanoarray can be produced, and by partially embedding it, a tube-shaped nanoarray can be produced.
- a nanoarray in which different electrode materials are stacked can be manufactured by repeating the embedding operation of different electrode materials. The filling operation can be repeated any number of times until all the pores are filled.
- the ⁇ -shaped anodized porous alumina film may be removed.
- the method of removal is not particularly limited, and examples thereof include a method of dipping in an acidic aqueous solution, an alkaline aqueous solution, a chromic acid aqueous solution, and the like.
- post-processing such as firing the obtained nanoarray electrode may be performed.
- post-treatment include, in addition to baking, formation of a metal film and adhesion to a support such as a polymer.
- the material to be embedded in the pores of the anodized porous alumina film is not particularly limited, but may be a polymerizable material such as methyl methacrylate or methyl acrylate. Examples include monomers, polymers such as polymethyl methacrylate, and metals such as gold, silver, copper, nickel, chromium, and platinum.
- the method of embedding the material is not particularly limited, but may be a wet method such as solution immersion, electrodeposition, electrodeposition, electrolytic plating, electroless plating, or liquid phase particle growth method, or a dry method such as vacuum deposition, sputtering, and CVD. Law.
- the material may be formed by performing post-treatments such as polymerization and firing. After the material is embedded, a post-treatment such as a polymerization reaction may be performed. As the post-treatment, in addition to the polymerization reaction, formation of a metal film or the like, baking, and the like can be given.
- the method described above can be applied as a method for removing the anodized porous alumina film after embedding the material and performing post-processing if necessary.
- an electrode material is buried in the pores of the nanoarray obtained by removing the anodized porous alumina film to produce a nanoarray electrode.
- the electrode material to be embedded the same material as described above can be used.
- the same method as that described above can be applied to the embedding.
- the electrode material may be embedded either partially or entirely in the pore. By embedding the entirety of the pores, a honeycomb-shaped nanoarray can be produced, and by partially embedding it, a tube-shaped nanoarray can be produced.
- the ⁇ -shaped material may be removed.
- the method of removal varies depending on the material. For example, in the case of a polymer material, a method of immersing the polymer in a solvent that dissolves the polymer may be used.
- a post-treatment such as firing the obtained nanoarray electrode may be performed.
- post-processing in addition to baking, polymerization, film formation of metal materials, and the like can be mentioned.
- the nanoarray electrode manufactured by the method of the present invention can be suitably used for a photoelectric conversion element.
- a charge transport layer 13 is sandwiched between a nanoarray semiconductor electrode 12 formed on a transparent conductive substrate 10 and a counter electrode substrate 11.
- Configuration. a configuration in which a semiconductor layer 18 and a transparent electrode layer 16 are stacked on a nanoarray electrode 17 made of a charge transport material formed on a conductive substrate 15 as shown in FIG. Can be
- an electron-accepting structure is formed on a nanoarray electrode 22 made of a compound having an electron-donating structure or an electron-accepting structure formed on a conductive substrate 20.
- a configuration in which a compound layer 23 having an electron-donating structure and an electrode layer 21 are laminated is exemplified. In this case, at least one of the conductive substrate 20 and the electrode layer 21 needs to be transparent.
- the transparent conductive substrate usually has a transparent electrode layer on a transparent substrate.
- the transparent substrate is not particularly limited, and the material, thickness, dimensions, shape, and the like can be appropriately selected according to the purpose.
- colorless or colored glass, netted glass, glass block, and the like are used.
- a resin having colorless or colored transparency may be used.
- polyester such as polyethylene terephthalate, polyamide, polysulfone, polyethersulfone, polyetherketone, polyphenylenesulfide, polycarbonate, polyimide, and the like. Examples include polymethyl methacrylate, polystyrene, cellulose triacetate, and polymethylpentene.
- transparent in the present invention means having a transmittance of 10 to 100%, preferably having a transmittance of 50% or more.
- the substrate in the present invention has a smooth surface at normal temperature, and the surface may be flat or curved, or may be deformed by stress.
- the transparent electrode layer is not particularly limited as long as it achieves the object of the present invention.
- the transparent electrode layer include a metal thin film such as gold, silver, chromium, copper, and tungsten, and a conductive film made of a metal oxide.
- metal oxides include, for example, Indium Tin Oxide (ITO) in which a metal oxide such as tin or zinc is slightly doped with another metal element.
- I n 2 03: S n Fluorine doped Tin Oxide (F TO (S n0 2: F)), Aluminum doped Zinc Oxide (AZO (Z n O: A 1)) such as, Indium doped Zmc Oxide (I ZO (ZnO: In)) and the like are preferably used.
- the thickness of the transparent electrode layer is usually 50 to 5000 nm, preferably 100 to 300 nm. Further, the surface resistance (resistivity) is appropriately selected depending on the use of the substrate of the present invention, but it is usually 0. SSOOQZsqu, preferably 2 to 50 ⁇ / sq.
- the method for forming the transparent electrode layer is not particularly limited, and a known method can be appropriately selected and used depending on the type of the above-described metal or metal oxide used as the electrode layer.
- a vacuum film forming method such as a vacuum deposition method, an ion plating method, a CVD or a sputtering method, and a wet film forming method such as an electrodeposition method, an electrophoresis method, an electrolytic plating, and an electroless plating are used.
- the substrate temperature is in the range of 20 to 700 ° C
- the substrate temperature is in the range of 20 to 300 ° C. .
- the substrate itself is conductive or at least one surface is conductive. Any transparent conductive substrate as described above or an opaque conductive substrate may be used. Examples of the opaque conductive substrate include various metal electrodes, as well as Au, Pt, Cr, and carbon formed on a glass substrate. In some cases, a catalyst layer may be provided on the conductive layer of the counter electrode substrate for the purpose of promoting an electron transfer reaction with the charge transport layer. Examples of the catalyst layer include various metals such as gold and platinum, and carbon.
- the semiconductor layer used in the photoelectric conversion element of the present invention is not particularly limited.
- the inorganic semiconductor material and the organic semiconductor material described above are used, but preferably C d S, C d Se, Cu In S 2 , Cu I n S e 2, F e 2 0 3, G aA s, I nP, a Nb 2 0 5, P b S , S n0 2, T i O 2, W0 3, Z nO, multiple combination It's a good idea.
- the semiconductor used in the present invention may be single crystal or polycrystal.
- the crystal system for example, in the case of titanium oxide, anatase type, rutile type, although such Purukkaito type are mainly used, preferably anatase type b
- the thickness of the semiconductor layer is arbitrary, but is 0.05 ⁇ or more and 100 zm or less, preferably 0.5 / z m or more and 50 / m or less, and more preferably 1 m or more and 30 ⁇ m or less. ⁇
- Various dyes can be adsorbed or contained in the semiconductor layer for the purpose of improving the light absorption efficiency of the semiconductor layer and the like.
- the dye used in the present invention is not particularly limited as long as it improves the light absorption efficiency of the semiconductor layer.
- one or more kinds of various metal complex dyes and organic dyes are used. it can.
- a dye such as a hydroxyl group, a hydroxyl group, a sulfonyl group, a phosphonyl group, a carboxylalkyl group, a hydroxyalkyl group, a sulfonylalkyl group, a phosphonylalkyl group, etc.
- the metal complex dye include ruthenium, osmium, iron, cobalt, and zinc complexes, metal phthalocyanine, and chlorophyll.
- Examples of the metal complex dye used in the present invention include the following. (Dye 1)
- x 2 indicates a monovalent on, and for example, the following is exemplified.
- the Y over number ⁇ two, be on, halogen ions, S CN @ -, C 10 4 one, BF 4 -, CF 3 S0 3 -, (CF 3 S0 2) 2 N -, (C 2 F 5 S0 2 ) 2 N-, PF 6 _, As F 6- , CH 3 COO-, CH 3 (C 6 H 4 ) S0 3- , and (C 2 F 5 S0 2 ) 3 C- be able to.
- Z is an atomic group having an unshared electron pair, and two Zs may be independent or may be bridged.
- two Zs may be independent or may be bridged.
- the following are exemplified.
- the Y a monovalent Anion, halogen ions, S CN @ -, C 10 4 one, BF 4 -, CF 3 S0 3 -, (CF a S 0 2) 2 N -, (C 2 F 5 S0 2 ) 2 ", PF 6- , As F 6- , CH 3 COO-, CH 3 (C 6 H 4 ) S0 3- , and (C 2 F 5 S0 2 ) 3 C" .
- organic dye a cyanine dye, a hemicyanine dye, a merocyanine dye, a xanthene dye, a triphenylmethane dye, and a metal-free phthalocyanine dye can be used.
- organic dye used in the present invention include the following.
- the substrate may be heated to an appropriate temperature.
- a method in which a semiconductor layer is immersed in a solution and adsorbed can be used.
- the immersion time is not particularly limited as long as the dye is sufficiently adsorbed, but is preferably 10 minutes to 100 hours, particularly preferably 5 to 50 hours, and more preferably 10 to 25 hours. is there.
- the solvent or the substrate may be heated when immersing, or may be irradiated with ultrasonic waves.
- the concentration of the dye in a solution is about 0.1 to 100 Ommo 1 / L, preferably about 0.1 to 500 mmo 1 L, and more preferably about 0.5 to 5 Ommo 1. is there. '
- the solvent used is not particularly limited as long as it does not dissolve the dye and does not dissolve the semiconductor layer.
- Alcohols such as ethanol, 1-butanol, 2-butanol, t-butanol, etc., nitrile solvents such as acetonitrile, propionitrile, methoxypropionitrile, glutaronitrile, benzene, toluene, o-xylene, m —Xylene, p-xylene, pentane, heptane, hexane, cyclohexane, heptane, acetone, methylethyl ketone, getyl ketone, ketones such as 2-butanone, dimethyl ether, tetrahydrofuran, ethylene carbonate, propylene carbonate, Nitromethane, Dimethinolefo / Remamide, Dimethinolesnorreoxide, Hexamethylphosphonamide, Dimethoxetane
- a low-molecular or high-molecular hole transport material or an electrolyte is used for the charge transport layer.
- hole transport materials include inorganic compounds such as copper iodide and silver iodide, carbazole derivatives, triazole derivatives, oxazole derivatives, oxadiazole derivatives, imidazole derivatives, polyarylalkane derivatives, pyrazoline derivatives, pyrazolone derivatives, and phenylene derivatives.
- Diphenylamine derivatives Diphenylamine derivatives, arylamine derivatives, amino-substituted chalcone derivatives, styrylanthracene derivatives, fluorenone derivatives, hydrazone derivatives, stilbene derivatives, silazane derivatives, aromatic tertiary amine compounds, styrylamine compounds, aromatic dimethylidin compounds , Porphyrin-based compounds, polysilane-based compounds, poly ( ⁇ -vinylcarbazol) derivatives, aniline-based copolymers, thiophene oligomers, and conductive high-molecular compounds such as polythiophene. It is below.
- the electrolyte is not particularly limited, and may be a liquid type or a solid type, and it is desirable that the electrolyte exhibit irreversible electrochemical redox characteristics.
- the electrolyte, ionic conductivity usually at room temperature 1 X 1 0- 7 S _ / cm or higher, preferred More preferably, it is 1 ⁇ 10 6 S / cm or more, more preferably 1 ⁇ 10 5 S / cm or more.
- the ionic conductivity can be determined by a general method such as a complex impedance method.
- the electrolyte the diffusion coefficient of the oxidant 1 X 1 0 - 9 cm 2 / s or more, preferably 1 X 1 0 one 8 cm 2 / ⁇ or more, more preferably more than 1 X 1 0 _ 7 cm 2 / s What is shown is desirable.
- the diffusion coefficient is an index indicating ionic conductivity, and can be determined by a general method such as constant potential current characteristic measurement and cyclic voltammogram measurement.
- the thickness of the electrolyte layer is not particularly limited, but is preferably 1 / m or more, more preferably 10 Attn or more, and preferably 3 mm or less, more preferably 1 mm or more! ".
- the liquid electrolyte is not particularly limited, and usually includes a solvent, a substance exhibiting reversible electrochemical redox properties (soluble in a solvent), and, if necessary, a supporting electrolyte. It is constituted as.
- any solvent can be used as long as it is generally used for electrochemical cells and batteries.
- the room temperature molten salt is a salt composed of an ion pair that is molten at room temperature (that is, is a liquid), and usually has a melting point of 20 ° C or less and is liquid at a temperature exceeding 20 ° C. It shows a salt consisting of a certain ion pair.
- room temperature molten salt examples include, for example, the following.
- R represents an alkyl group having 2 to 20 carbon atoms, preferably 2 to 10 carbon atoms, and represents a halogen ion or SCN.
- R 1 and R 2 are each an alkyl group having 1 to 10 carbon atoms (preferably a methyl group or an ethyl group), or an aralkyl group having 7 to 20 carbon atoms, preferably 7 to 13 carbon atoms (preferably Represents a benzyl group), which may be the same or different, and X represents a halogen ion or SCN.
- R 1, R 2, R 3, and R 4 each have 1 or more carbon atoms, preferably an alkyl group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms (such as a phenyl group), or A methoxymethyl group, etc., which may be the same as or different from each other, and X represents a halogen ion or SCN.
- solvent one kind may be used alone, or two or more kinds may be used in combination.
- a substance exhibiting reversible electrochemical oxidation-reduction properties is usually a so-called redox material, but the type thereof is not particularly limited.
- the qualities include, for example, phenicene, p-benzoquinone, 7,7,8,8-tetracyanoquinodimethane, N, N, N ,, N, -tetramethyl-p-phenylenediamine, tetrathiafulvalene, Tianthracene, p-toluylamine and the like can be mentioned.
- complex salts such as ferrocyanic acid-furicyanate, sodium polysulfide, alkylthiol-alkyl disulfide, hydroquinone-quinone, and
- redox material only one of the oxidized form and the reduced form may be used, or the oxidized form and the reduced form may be mixed at an appropriate molar ratio and added. Further, these redox couples may be added so as to exhibit electrochemical responsiveness.
- metallo-pam salts such as ferrosenium having anion selected from H 3 COO—, CH 3 (C 6 H 4 ) SO 3 , and (C 2 F 5 S0 2 ) 3 C—
- Halogen such as hydrogen, bromine and chlorine
- examples of the substance exhibiting reversible electrochemical oxidation-reduction properties include salts having an anion ( ⁇ ⁇ ) selected from halogen ions and SCN—.
- examples of these salts include quaternary ammonium salts and phosphonium salts.
- quaternary ammonium salts specifically, (CH 3 ) 4 N + X—, (C 2 H R ) 4 N + X_,
- phosphoium salt examples include (CH 3 ) 4 P + X—, (C 2 H 5 ) 4 P + X, (C 3 H 7 ) 4 P + X—, (C 4 H 9 ) 4 P + X— and the like.
- redox room-temperature molten salts can be used as a substance exhibiting reversible electrochemical oxidation-reduction properties.
- a redox-type room temperature molten salt is a salt composed of an ion pair that is molten at room temperature (that is, in a liquid state), and usually has a melting point of 20 ° C or less and a temperature exceeding 20 ° C. It refers to a salt composed of a liquid ion pair and is capable of performing a reversible electrochemical oxidation-reduction reaction.
- the solvent may or may not be used.
- One of the redox room-temperature molten salts can be used alone, or two or more can be used in combination.
- Examples of the redox room-temperature molten salt include the following.
- R represents an alkyl group having 2 to 20 carbon atoms, preferably 2 to 10 carbon atoms, and X— represents a halogen ion or SCN.
- R 1 and R 2 each represent an alkyl group having 1 to 10 carbon atoms (preferably a methyl group or an ethyl group), or an aralkyl group having 7 to 20 carbon atoms, preferably 7 to 13 carbon atoms ( (Preferably a benzyl group), which may be the same or different.
- X represents a halogen ion or SCN.
- R1, R2, R3, and R4 each represent an alkyl group having 1 or more carbon atoms, preferably an alkyl group having 16 carbon atoms, an aryl group having 6 to 12 carbon atoms (such as a phenyl group), or a methacrylate. It represents a xylmethyl group and may be the same or different.
- X represents a halogen ion or SCN.
- the amount of the substance exhibiting reversible electrochemical oxidation-reduction properties is not particularly limited as long as it does not cause a problem such as precipitation in the electrolyte, but is usually 0.000 as the concentration in the electrolyte. 1 to: L Omo 1 / L, preferably 0.1 to 1 mol / L. However, this does not apply when redox normal-temperature molten salts are used alone.
- salts, acids, alkalis, and room-temperature molten salts that are commonly used in the field of electrochemistry or the field of batteries can be used.
- the salt is not particularly limited, and examples thereof include inorganic ion salts such as alkaline metal salts and alkaline earth metal salts; quaternary ammonium salts; cyclic quaternary ammonium salts; and quaternary phosphonium salts.
- inorganic ion salts such as alkaline metal salts and alkaline earth metal salts
- quaternary ammonium salts such as alkaline metal salts and alkaline earth metal salts
- quaternary ammonium salts such as quaternary ammonium salts
- cyclic quaternary ammonium salts such as quaternary ammonium salts
- quaternary phosphonium salts such as Li salts are preferred.
- salts C 10 4 one, BF 4 one, CF 3 SO s one, (CF 3 S0 2) 2 N -, (C 2 F 5 S0 2) 2 N -, PF 6 _, A s F 6 -, CH 3 COO_, CH 3 (C 6 H 4) SO 3, and (C 2 F 5 S 0 2 ) '3 L i salt having a pair Anion selected from C-, Na salt or K salt, Is mentioned.
- the acids are not particularly limited, and inorganic acids, organic acids, and the like can be used. Specifically, sulfuric acid, hydrochloric acid, phosphoric acids, sulfonic acids, carboxylic acids, and the like can be used. 'The alkalis are not particularly limited, and any of sodium hydroxide, potassium hydroxide, lithium hydroxide and the like can be used.
- the use amount of the above supporting electrolyte is not particularly limited and is arbitrary. Usually, the concentration in the electrolyte is 0.01 to: L Omo 1ZL, preferably 0.05 to lm.
- a liquid system as described above may be used, but a polymer solid electrolyte is particularly preferable from the viewpoint that solidification is possible.
- Particularly preferred as solid polymer electrolytes are (a) a polymer matrix (component (a)) and at least (c) a substance exhibiting reversible electrochemical redox properties (component (c)). And (b) optionally containing a plasticizer (component (b)). Also, this In addition to these, other optional components such as (d) the above-mentioned supporting electrolyte and (e) room-temperature molten salt may be further contained, if desired.
- the component (b), or the component (b) and the component (c), or an optional component is held in a polymer matrix to form a solid state or a gel state. .
- the material that can be used as the polymer matrix is not particularly limited as long as the polymer matrix is used alone or a solid state or a gel state is formed by adding a plasticizer, a supporting electrolyte, or a plasticizer and a supporting electrolyte. There is no need to use commonly used polymer compounds.
- Examples of the polymer compound exhibiting the properties as the polymer matrix include hexafluoropropylene, tetrafluoroethylene, trifluoroethylene, ethylene, propylene, acrylonitrile, bi-lidene chloride, atarilic acid, methacrylic acid, maleic acid, Examples thereof include a polymer compound obtained by polymerizing or copolymerizing a monomer such as maleic anhydride, methyl acrylate, methyl acrylate, methyl methacrylate, styrene, and bi-lidene fluoride. These polymer compounds may be used alone or in combination. Among these, polyvinylidene fluoride polymer compounds are particularly preferred.
- polyvinylidene fluoride-based polymer compound examples include a homopolymer of vinylidene fluoride, and a copolymer of vinylidene fluoride and another polymerizable monomer, preferably a radical polymerizable monomer.
- copolymerizable monomers specifically, hexafluoropropylene, te, trafluoroethylene, trifluoroethylene, ethylene, propylene
- copolymerizable monomers specifically, hexafluoropropylene, te, trafluoroethylene, trifluoroethylene, ethylene, propylene
- examples include acrylonitrile, vinylidene chloride, acrylic acid, methacrylic acid, maleic acid, maleic anhydride, methyl acrylate, ethyl acrylate, methyl methacrylate, and styrene.
- copolymerizable monomers can be used in the range of 0.1 to 50 mol%, preferably 1 to 25 mol 1% based on the total amount of the monomers.
- Hexafluoropropylene is preferably used as the copolymerizable monomer.
- a vinylidene fluoride-hexafluoropropylene copolymer obtained by copolymerizing 1 to 25 mo 1% of hexafluoropropylene with vinylidene fluoride is preferably used as a polymer solid electrolyte having a high molecular matrix. be able to.
- two or more kinds of vinylidene fluoride-hexafluoropropylene copolymers having different copolymerization ratios may be mixed and used.
- two or more of these copolymerizable monomers can be used for copolymerization with bilidene fluoride.
- bilidene fluoride for example, combinations of vinylidene fluoride 10-hexafluoropropylene + tetrafluoroethylene, vinylidene fluoride 10-hexafluoropropylene + acrylic acid, vinylidene fluoride + tetrafluoroethylene + ethylene, vinylidene fluoride + tetrafluoroethylene + propylene, etc.
- a copolymer obtained by copolymerizing the above can also be used.
- a polyvinylidene fluoride polymer compound a polyacrylic acid polymer compound, a polyacrylate polymer compound, a polymethacrylic acid polymer compound, a polymethacrylate polymer compound, a polyatarilonitrile polymer
- One or more polymer compounds selected from a polymer compound and a polyether-based polymer compound may be used as a mixture.
- one or more copolymers obtained by copolymerizing two or more monomers of the above-mentioned polymer compound with a polyvinylidene fluoride-based polymer compound may be used. At this time, the blending ratio of the homopolymer or the copolymer was determined according to
- the weight average molecular weight of the polyfutsudani vinylidene polymer used is usually 1
- the plasticizer acts as a solvent for substances exhibiting reversible electrochemical redox properties.
- any plasticizer that can be generally used as an electrolyte solvent in an electrochemical cell or battery can be used, and specific examples thereof include various solvents exemplified for the liquid electrolyte.
- Room temperature molten salts can also be used.
- the amount of the plasticizer (component (b)) used is not particularly limited, but is usually 20% by mass or more, preferably 50% by mass or more, more preferably 70% by mass or more in the electrolyte (ion conductive material). And 98% by mass or less, preferably 95% by mass or less, more preferably 90% by mass or less.
- the component (c) is a compound capable of performing a reversible electrochemical redox reaction as described above, and is generally referred to as a redox material.
- examples thereof include, for example, Feguchisen, p-benzoquinone, 7,7,8,8-tetracyanoquinodimethane, N, N, N ', N' —Tetramethyl-1-p-phenylenediamine, tetrathiafulvalene, anthracene, p-tolylamine and the like can be used.
- B r 2 and tetraalkyl ammonium Niu beam Puromaido Chatter Gini ⁇ beam Bro amide, bromine salt, Fueroshian monobasic ferri.
- Complex salts such as cyanates, polysulfated sodium, alkylthio one Lou alkyl Soo sulfide, arsenate Droquinone-quinone, viologen and the like can be used.
- As the redox material only one of the oxidized form and the reduced form may be used, or the oxidized form and the reduced form may be mixed at an appropriate molar ratio and added.
- a salt having an anion (X-) selected from a halogen ion and SCN- can be mentioned.
- these salts include quaternary ammonium salts and phosphonium salts.
- the quaternary ammonium salts specifically, (CH 3 ) 4 N + X—, (C 2 H 5 ) 4 N + X—, (nC 4 H 9 ) 4 N + X—,
- a redox room-temperature molten salt can also be used.
- the component (b) may be used in combination with or without the component. .
- One of the redox room-temperature molten salts can be used alone, or two or more can be used in combination.
- the amount of the substance (component (c)) exhibiting reversible electrochemical oxidation-reduction properties is not particularly limited, and is usually 0.1% by mass or more, preferably 1% by mass in the solid polymer electrolyte. As described above, it is more preferably 10% by mass or more and 70% by mass or less, preferably 60% by mass or less, more preferably 50% by mass or less.
- the component (c) When the component (c) is used in combination with the component (b), it is desirable that the component (c) has a mixing ratio that dissolves in the component (b) and does not cause precipitation when the polymer solid electrolyte is used.
- the ratio of component (c) / component (b) is in the range of 0.01 to 0.5, more preferably 0.03 to 0.3, by mass.
- the weight ratio of component (a) to component (a) / (component (b) + component (c)) is preferably in the range of 1Z20 to 11 and more preferably 110 to 1Z2. desirable.
- the amount of the supporting electrolyte (component (d)) used in the polymer solid electrolyte is not particularly limited and is arbitrary, but is usually 0.1% by mass or more, preferably 1% by mass in the polymer solid electrolyte.
- the content is more preferably 10% by mass or more and 70% by mass or less, preferably 60% by mass or less, and more preferably 50% by mass or less.
- the solid polymer electrolyte may further contain other components.
- other components include an ultraviolet absorber, an amine compound, and the like.
- the ultraviolet absorber that can be used is not particularly limited, but organic ultraviolet absorbers such as benzotriazole skeleton and compounds having a benzophenone skeleton are typical. It is mentioned as a typical thing.
- a compound represented by the following general formula (157) is preferably exemplified.
- R 81 represents a hydrogen atom, a halogen atom or an alkyl group having 1 to 10, preferably 1 to 6, carbon atoms.
- the halogen atom include fluorine, chlorine, bromine, and iodine.
- the alkyl group include a methyl group, an ethyl group, a propyl group, an i-propyl group, a butyl group, a t-butyl group, and a cyclohexyl group.
- the substitution position of R 81 is a 4- or 5-position of the benzotriazole ring, a halogen atom Contact Yopi the alkyl group position to the normal position 4.
- R 82 represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, preferably 1 to 6 carbon atoms.
- the alkyl group include a methyl group, an ethyl group, a propyl group, an i-propyl group, a butyl group, a t-butyl group, a cyclohexyl group and the like.
- R 83 represents an alkylene group or an alkylidene group having 1 to 10, preferably 1 to 3 carbon atoms.
- Examples of the alkylene group include a methylene group, an ethylene group, a trimethylene group, and a propylene group.
- the alkylidene group include an ethylidene group and a propylidene group.
- Specific examples of the compound represented by the general formula (157) include 3- (5-chloro-2-H-benzotriazole-2-yl) -15- (1,1-dimethylethyl) 14-hid Roxy-benzenepropanoic acid, 3- (2H-benzotriazole-2-yl) -1-5- (1,1-dimethynoleethynole) 1-4-Hydroxy-benzeneethaneanoic acid, 3- (2H-benzo Triazole-1-2-yl) 1-4-hydroxybenzeneethaneeanoic acid, 3- (5-methyl-12H-benzotriazole-12-yl) -1 5— (1-methylethyl) 14- Hydroxybenzenepropanoic acid, 2- (2'-hydroxy-5, -methylphenyl) benzotriazole, 2- (2, -hydroxy-3,, 5'-bis (hi, ⁇ -dimethylbenzyl) phenyl ) Benzotriazole, 2—
- R 92, R 93, R 95, R 96, R 9 8, ⁇ Pi R 99 may be the same or different groups from each other, each independently, human de port It represents a xyl group, an alkyl group or an alkoxy group having 1 to 10, preferably 1 to 6 carbon atoms.
- the alkyl group include a methyl group, an ethyl group, a propyl group, an i-propyl group, a butyl group, a t-butyl group, and a cyclohexyl group.
- the alkoxy group include a methoxy group, an ethoxy group, a propoxy group, an i-propoxy group, and a butoxy group.
- R 91 , R 94 and R 97 each independently represent an alkylene group or an alkylidene group having 1 to 10 carbon atoms, preferably 1 to 3 carbon atoms.
- the alkylene group include a methylene group, an ethylene group, a trimethylene group, and a propylene group.
- the alkylidene group include an ethylidene group and a propylidene group.
- p1, p2, p3, ql, q2, and q3 each independently represent an integer of 0 to 3.
- Preferred examples of the compounds having a benzophenone skeleton represented by the above general formulas (158) to (160) include 2-hydroxy-14-methoxybenzophenone-1.5 mono-norrevonic acid, , 2'-dihydroxy-4-methoxybenzophenone-1-5-force norlevonic acid, 4- (2-hydroxybenzoy7) -13-hydroxybenzenepronoic acid, 2,4-dihydroxybenzophene Non, 2-hydroxy-1-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-15-sulfonic acid, 2-hydroxy-1-4-n-otatobenzobenzophenone, 2,2 'jihi Doxy—4,4, dimethoxybenzophenone, 2,24,4′-tetrahydroxybenzophenone, 2-hydroxy-14-methoxy-12′-carboxybenzophenone, and the like.
- an ultraviolet absorber is optional, and the amount of use is not particularly limited. However, when used, 0.1% by mass or more, preferably 1% by mass, in the solid polymer electrolyte is used. % By mass or more, preferably 20% by mass or less, more preferably 10% by mass or less.
- the amine compound that can be contained in the polymer solid electrolyte is not particularly limited, and various aliphatic amines and aromatic amines are used. Examples thereof include a pyridine derivative, a biviridine derivative, and a quinoline derivative. As The addition of these amine compounds is expected to improve the open circuit voltage. Specific examples of these compounds include 4-t-butyl-pyridine, quinoline, isoquinoline, and the like.
- the polymer solid electrolyte may be manufactured as a redox electrolyte film. The method is described below.
- these polymer solid electrolytes can be obtained by forming a mixture of the components (a) to (c) and optional components to be blended as desired into a film by a known method.
- the molding method in this case is not particularly limited. Examples thereof include a method of obtaining a film state by extrusion molding and a casting method, a spin coating method, a dip coating method, an injection method, and an impregnation method.
- Extrusion can be carried out by a conventional method, and the mixture is heated and melted, and then a film is formed.
- the mixture can be further adjusted in viscosity with an appropriate diluent, applied by a usual coater used in the casting method, and dried to form a film.
- a doctor coater a plaid coater, a rod coater, a knife coater, a reno-slowno recorder, a gravure coater, a spray coater, and a curtain coater can be used, and can be selectively used depending on viscosity and film thickness.
- a film can be formed by adjusting the viscosity of the mixture with a suitable diluent, applying the mixture using a commercially available spin coater, and drying.
- a film can be formed by further adjusting the viscosity of the mixture with a suitable diluent to prepare a mixture solution, pulling up an appropriate substrate from the mixture solution, and then drying.
- an electron barrier layer and / or a hole transport layer ⁇ a hole barrier layer and Z or an electron transport layer or a protective layer can be provided.
- the electron barrier layer and / or the hole transport layer are usually provided between the anode and the photoelectric conversion layer, and the hole barrier layer and Z or the electron transport layer are usually provided between the cathode and the photoelectric conversion layer.
- An example of these layer structures is shown in FIG. Note that the photoelectric conversion layer described here is a layer that absorbs light to generate an electron-hole pair.
- the material used for the electron barrier layer and the hole transport layer may be any material that has either a function of transporting photogenerated holes or a function of blocking photogenerated electrons.
- Specific examples thereof include carbazole derivatives, triazole derivatives, oxazole derivatives, oxadiazole derivatives, imidazole derivatives, polyarylalkane derivatives, pyrazoline derivatives, pyrazolone derivatives, phenylenediamine derivatives, arylamine derivatives, amino-substituted chalcone derivatives, styryl anthracene derivatives, Fluorenone derivative, hydrazone derivative, stilbene derivative, silazane derivative, aromatic tertiary amine compound, styrylamine compound, aromatic dimethylidene compound, porphyrin compound, polysilane compound, poly (N-bulcarbazole) derivative, Aniline copolymer, Thiophene oligomer, Polythio Conductive polymer compounds such as phen are exe
- the electron barrier layer and / or the hole transport layer may have a single-layer structure composed of one or more of the above materials, or may have a multilayer structure composed of a plurality of layers having the same composition or different compositions. .
- Examples of the method for forming the electron barrier layer and the Z or hole transport layer include a vacuum deposition method, an LB method, an ink jet method, and a method in which the above materials are dissolved or dispersed in a solvent and applied (spin coating method, casting method, Dip coating method) is used.
- the above-mentioned materials may be dissolved or dispersed together with a resin component to prepare a coating solution
- the resin component may be polychlorinated vinyl, polycarbonate, polystyrene, polymethyl methacrylate, polybutyl methacrylate. Rate, polyester, polysulfone, polyphenylene oxide, polybutadiene, poly (N-vinylcarbazole), hydrocarbon resin, ketone resin, phenolic resin, polyamide, ethylcellulose, polyacetate, ABS resin, polyurethane , Melamine resin, unsaturated polyester resin, alkyd resin, epoxy resin, silicone resin and the like can be used.
- the thicknesses of the electron barrier layer and the hole transport layer are not particularly limited, but are usually preferably l nm to 5 ⁇ m, and 5 ⁇ ! 1 1 / z ni is more preferable, and l ′ On nm to 500 nm is particularly preferable.
- the material used for the hole blocking layer and the Z or electron transporting layer may be any material having a function of transporting photogenerated electrons or a function of blocking photogenerated holes.
- Specific examples thereof include triazole derivatives, oxazole derivatives, oxadiazole derivatives, fluorenone derivatives, anthraquinodimethane derivatives, anthrone derivatives, diphenylquinone derivatives, thiopyrandioxide derivatives, thiopyranimide derivatives, fluorenylidene methane derivatives, Distyryl virazine derivative, heterocyclic tetracarboxylic anhydride such as naphthalene perylene, phthalocyanine derivative, metal complex (metal complex of 8-quinolinol derivative, metal phthalocyanine, benzoxazole or benzothiazole as ligand Metal complex, etc.) Q o
- the hole barrier layer and / or the electron transport layer may have a single-layer structure composed of one or more of the above materials, or may have a multilayer structure composed of a plurality of layers having the same composition or different compositions.
- the hole barrier layer and the Z or electron transport layer can be formed by vacuum deposition, LB, inkjet, or by dissolving or dispersing the above materials in a solvent and applying them (spin coating, casting, dip coating). Coating method).
- the above materials may be dissolved or dispersed together with a resin component to prepare a coating liquid.
- a resin component the same one as in the case of the above-described electron barrier layer and / or hole transport layer can be used.
- the thickness of the hole barrier layer and / or the electron transport layer is not particularly limited, and is usually preferably 1 nm to 5 ⁇ m, more preferably 5 nm to l / im, and 1 ⁇ ! It is particularly preferred that the thickness be from 500 nm to 500 nm.
- the protective layer has a function of preventing moisture, oxygen, and other substances that promote device deterioration from entering the device.
- a metal I n, S n, P b, Au, Cu, Ag, A l, T i, N i , etc.
- metal oxides MgO, S i O, S i 0 2, A l 2 0 3, G e O, N i O, C a O, B a O, F e 2 0 3, Y 2 0 3, T i 0 2 , etc.
- a metal fluoride Mg F 2, L i F, A 1 FC a F 2, etc.
- polyethylene polypropylene, polymethyl methacrylate, polyimide, polyurea, polytetrafluoroethylene full O Roe Ji Ren, polyclonal port Torifunoreo port ethylene, Porijikuro port Jifunoreo port ethylene, click Rollo triflumizole Ruo b ethylene
- the method for forming the protective layer is not particularly limited, and includes a vacuum deposition method, a sputtering method, a reactive sputtering method, an MBE (molecular beam epitaxy) method, a cluster ion beam method, an ion plating method, and a plasma polymerization method (high-frequency excitation ion plating). Coating method), plasma CVD method, laser CVD method, thermal CVD method, gas source CVD method, coating method, and ink jet method.
- a conductive substrate 24 forming an ohmic junction with a nanoarray semiconductor electrode 25 is provided on one surface of the nanoarray semiconductor electrode, and the nanoarray semiconductor electrode is provided on the other surface.
- a conductive film 26 that forms a Schottky junction with the semiconductor electrode 25 is provided, and a sensitizing dye layer 27 is supported on the conductive film.
- the semiconductor constituting the nanoarray semiconductor electrode may be an n-type semiconductor or a p-type semiconductor.
- the shape of the semiconductor can be any of single crystal, polycrystal, film, etc. Shapes are also possible.
- an ohmic junction is formed when the intrinsic Fermi level is substantially the same as or smaller than the work function of a conductive material, and a Schottky junction is formed when the work function is large.
- an ohmic junction is formed when the intrinsic Fermi level is substantially the same as or larger than the work function of the conductive material, and a Schottky junction is formed when the work function is low.
- n-type oxide semiconductor examples include, but are not limited to, titanium oxide, tantalum oxide, niobium oxide, and zirconia oxide.
- a material having a low work function and forming an ohmic junction with the oxide semiconductor is used as the conductive substrate.
- titanium oxide when titanium oxide is used as an oxide semiconductor, lithium, sodium, magnesium, anomium, potassium, calcium, scandium, titanium, vanadium, manganese, zinc, gallium, arsenic, rubidium, strontium, yttrium, zirconium, niobium, Indium which is a metal oxide such as silver, cadmium, indium, cesium, barium, lanthanum, hafnium, tantalum, thallium, lead, bismuth, an alloy, a compound, tin or zinc, and a small amount of other metal elements doped with Indium Tin Oxide (ITO (I n 2 ⁇ 3: S n)), Fluorine doped Tin Oxide (ETO (S n 0 2: F)), Aluminum doped Zinc Oxide (AZO (Z n O: a 1)) metal such as Examples include materials such as a conductive film made of an oxide, but are not limited thereto.
- ITO Indium Tin Oxide
- ETO S
- the conductive film has a large work function and is made of a conductive material that forms a Schottky junction with the oxide semiconductor.
- a conductive material that forms a Schottky junction with the oxide semiconductor.
- titanium oxide is used as an oxide semiconductor, beryllium, boron, carbon, silicon, chromium, iron, cobalt, nickel, copper, germanium, selenium, molybdenum, ruthenium, rhodium, palladium, antimony, ter ⁇ /, and tinda stainless , Rhenium, osmium, iridium, platinum, gold, mercury, copper and other metals and alloys and compounds, but are not limited thereto.
- the surface resistance of the conductive film is preferably as low as possible, and the preferable range of the surface resistance is 100 or less, more preferably 100 ⁇ / or less.
- the conductive film may be formed by a known method such as electroplating, electroless plating, metal deposition (including sputtering, ion plating and CVD), and metal colloid.
- the thickness of the conductive film to be formed is not particularly limited as long as it does not hinder electron transfer from the dye layer to the oxide semiconductor layer, but is preferably 1 nm to 200 nm, more preferably 1 On ⁇ ! It is in the range of ⁇ 50 nm.
- the metal colloid has a diameter of 100 nm or less, preferably 100 nm or less. Positively charged metal colloids tend to adhere well to oxide semiconductors. By using colloids, metals can be easily adhered to inorganic compounds.
- sensitizing dye layer Various semiconductors and dyes can be used as the sensitizing dye layer. It is important for the sensitizing dye layer that the oxidation-reduction product is stable, and that the potential of the excited electrons in the light absorption layer and the hole potential generated by photoexcitation in the light absorption layer are important. .
- the light-absorbing edge energy of the sensitizing dye must be equal to or greater than the Schottky barrier formed by the semiconductor and the conductive film.
- the LUMO potential of the semiconductor and the conduction potential of the semiconductor are higher than the conduction potential of the n-type semiconductor, and the hole potential generated by photoexcitation in the light absorbing layer is the Fermi level after the n-type semiconductor and the conductive film are joined. It is necessary to be lower than the order.
- the hole potential generated by photoexcitation in the light absorbing layer is lower than the valence level of the p-type semiconductor, and the LUMO potential of the photoexcited dye
- the conductive charge potential of the semiconductor must be higher than the Fermi level after the p-type semiconductor and the conductive film have joined. Reducing the recombination probability of excited electron-holes near the light absorption layer is also important for increasing the photoelectric conversion efficiency.
- the semiconductor used for the sensitizing dye layer is preferably an i-type amorphous semiconductor having a large light absorption coefficient, a direct transition type semiconductor, or a fine particle semiconductor exhibiting a quantum size effect and efficiently absorbing visible light.
- a metal complex dye, an organic dye, and a natural dye are preferable in addition to the above-described dyes.
- Functional groups such as carboxyl group, hydroxy group, sulfonyl group, phosphoni / le group, carboxylalkyl group, hydroxyalkyl group, sulfuralkyl group, and phosphoralkyl group in the dye molecule Those having the following are preferably used.
- the metal complex dye a complex of ruthenium, osmium, iron, cobalt, and zinc—metal phthalocyanine, chlorophyll, and the like can be used.
- the organic dye include cyanine dyes, hemicyanine dyes, merocyanine dyes, xanthene dyes, triphenylmethane dyes, and metal-free phthalocyanine dyes, but are not limited thereto. No.
- one or more of various semiconductors, metal complex dyes, and organic dyes, or two or more dyes can be mixed in order to widen the wavelength range of photoelectric conversion as much as possible and increase conversion efficiency.
- the dyes to be mixed and their proportions can be selected so as to match the wavelength range and intensity distribution of the desired light source.
- the nanoarray electrode of the present invention has a very controlled nanostructure, and when applied to a photoelectric conversion device, it is possible to produce a device with high conversion efficiency.
- An aluminum substrate (Toyo Aluminum, purity 99.99%) was converted to aluminum at 70 ° C in a mixed solution of monophosphate and sulfuric acid (33 OmL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 mL of ethylene dalicol, and 80 mL of water).
- monophosphate and sulfuric acid 33 OmL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 mL of ethylene dalicol, and 80 mL of water.
- the cells were subjected to constant current electrolytic treatment at 25 OmAZcm 2 for 5 minutes, then washed with water and dried.
- This aluminum substrate is used as an anode and graphite is used as a cathode.
- Anodizing is performed for 5 hours in a 0.5 mo 1 aqueous solution of ZL oxalic acid by applying a temperature of 16 and 40 V.
- the resulting nano-array electrode after 30 hours immersion in ruthenium dye (SOLAR ON IX Co. Ru teni um535 -bis TBA) Z ethanol solution (5. 0 X 10- 4 mo 1 / L), washed with ethanol, dried, The dye was adsorbed.
- ruthenium dye SOLAR ON IX Co. Ru teni um535 -bis TBA
- the 3-methoxypropionitrile solution was infiltrated by capillary action, and the periphery was sealed with epoxy adhesive.
- a lead wire was connected to the ITO electrode and the opposite electrode.
- the cell obtained in this way was irradiated with simulated sunlight, and the current-voltage characteristics were measured.
- the photoelectric conversion efficiency was 6.5%, indicating good photoelectric conversion characteristics.
- An aluminum substrate (manufactured by Toyo Aluminum Co., purity: 99.99%) was placed at 70 ° C in a mixed solution of monophosphate and sulfuric acid (330 mL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 mL of ethylene glycol, and 80 mL of water).
- monophosphate and sulfuric acid 330 mL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 mL of ethylene glycol, and 80 mL of water.
- constant current electrolytic treatment was performed at 25 OmA / cm 2 for 5 minutes, followed by washing with water and drying.
- This al Anodizing is performed for 5 hours at a temperature of 16 ° C and 40 V in a 0.5 mo1 / L aqueous solution of oxalic acid using a miniature substrate as the anode and graphite as the cathode. It was immersed in a phosphoric acid mixed solution (chromium oxide 6 g, phosphoric acid 20 g, water 300 g) at 50 for 12 hours, washed with water and dried. This substrate was subjected to anodization under the same conditions as above for another 3 hours. The obtained anodized porous alumina film substrate was further treated in a 5% aqueous solution of phosphoric acid for 40 minutes to finally obtain a film thickness of about 24 / m and a pitch of 10
- An anodized porous alumina film having a pore size of 0 nm and a pore size of 75 nm was prepared.
- the obtained anodized porous alumina film is immersed in an aqueous solution containing 0.2 mol / L of (NH 4 ) 2 TiF 6 and 0.2 mol / L of H 3 BO 3 at 30 ° C. for 5 minutes. Then, after forming a titanium oxide film in the pores of the anodized porous alumina film, it was baked at 550 ° C. for 30 minutes. Further, gold was deposited by electroless plating in the pores of the obtained porous alumina titanium monoxide nanoarray. On the gold side of the obtained nanoarray,
- the resulting nano-array electrode ruthenium dye (SO Laron IX Co. R uteni um 5 3 5- bis T BA) / ethanol solution (5. 0 X 1 0- 4 mo 1 / L) 3 after 0 hour immersion ethanol Washed and dried to adsorb the dye.
- the resulting S n 0 of the titanium oxide surface and the surface resistance value 15 ⁇ 3 q of board 2 F Glass: transparent conductive layer (a glass board on the S n 0 2 F film transparent conductive glass in which the formation)
- a counter electrode formed by depositing platinum with a thickness of 30 nm is combined, and 0.5 lmol / L of lithium iodide and 0.5 mo1 / L of lyodium-l-propyl-1,2,3-dimethylimidazolym , 0.5 to o 1 ZL of 4-t-butylpyridine, and 0.05 mol / L of iodine containing 3-methoxypropionitrile solution are impregnated by capillary action and the surrounding area is epoxy adhesive. And sealed.
- a lead wire was connected to the ITO electrode and the opposite electrode.
- the cell obtained in this way was irradiated with simulated sunlight, and the current-voltage characteristics were measured.
- the photoelectric conversion efficiency was 12%, showing good photoelectric conversion characteristics. (Example 3)
- An aluminum substrate manufactured by Toyo Aluminum Co., Ltd., purity 99.99%) in a mixed solution of monosulfate and phosphoric acid (33 OmL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 mL of ethylene dalicol, 80 mL of water) at 70 °
- a constant current electrolytic treatment was performed at 25 OmA / cm 2 for 5 minutes, followed by washing with water and drying.
- the obtained anodized porous alumina film substrate was treated in a 5% phosphoric acid aqueous solution for 40 minutes to finally obtain a highly ordered anodized porous alumina having a film thickness of about 8 ⁇ , a pitch of 65 nm, and a pore size of 25 nm.
- a membrane was obtained.
- the resulting nano-array electrode 30 hours after immersion in ruthenium dye (SOLARON IX Co. Ru teni um535_b is TBA) Bruno ethanol solution (5. 0 X 10- 4 mo 1 / L), washed with ethanol, dried, the dye Adsorbed.
- An aluminum substrate (manufactured by Toyo Aluminum Co., purity: 99.99%) was placed at 70 ° C in a mixed solution of monophosphate and sulfuric acid (33 OmL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 niL of ethylene dalicol, and 80 mL of water).
- monophosphate and sulfuric acid 33 OmL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 niL of ethylene dalicol, and 80 mL of water.
- constant current electrolytic treatment was performed at 25 OmA / cm 2 for 5 minutes, followed by washing with water and drying. This aluminum substrate was used as an anode and graphite was used as a cathode.
- Anodizing was performed for 5 hours in a 0.5 mo 1 ZL oxalic acid aqueous solution at a temperature of 16 ° C and 4 OV. It was immersed in a mixed solution (6 g of chromium oxide, 20 g of phosphoric acid, 300 g of water) at 50 ° C for 12 hours, washed with water and dried. This substrate was further subjected to anodizing treatment under the same conditions as above for another hour.
- the obtained anodized substrate is subjected to a diameter expansion process in a 5% phosphoric acid aqueous solution for 40 minutes to finally obtain a highly ordered anodized porous alumina film having a film thickness of about 6 ⁇ , a pitch of 100 nm, and a pore diameter of 75 nm.
- This substrate was immersed in a mixed solution of methyl methacrylate and benzoyl peroxide and polymerized at 40 ° C. for 12 hours.
- the obtained alumina polymethyl methacrylate composite was immersed in an aqueous solution of cupric acid for 8 hours to dissolve the alumina, thereby preparing a nanoarray composed of polymethyl methacrylate.
- the obtained nanoarray electrode was replaced with a ruthenium dye (SOLARON IX Rutete).
- ni um 535 - bis TBA) / ethanol solution (5. 0 X 10- 4 mo 1 / L) in 30 hours after immersion, washed with ethanol, and dried to adsorb the dye.
- the cell obtained in this way was irradiated with simulated sunlight, and the current-voltage characteristics were measured.
- the photoelectric conversion efficiency was 6.5%, indicating good photoelectric conversion characteristics.
- An aluminum substrate (manufactured by Toyo Aluminum Co., purity: 99.99%) was placed at 70 ° C in a mixed solution of monophosphate and sulfuric acid (330 mL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 mL of ethylene glycol, and 80 mL of water).
- monophosphate and sulfuric acid 330 mL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 mL of ethylene glycol, and 80 mL of water.
- constant current electrolytic treatment was performed with 25 OmAZcm 2 for 5 minutes, followed by washing with water and drying.
- the obtained anodized substrate is subjected to a diameter enlargement treatment in a 5% phosphoric acid aqueous solution for 40 minutes to finally obtain a highly ordered anodized porous alumina film having a thickness of about 6 ⁇ , a pitch of l'00 nm, and a pore diameter of 75 nm.
- This substrate was immersed in a mixed solution of methyl methacrylate and benzoyl peroxide and polymerized at 40 ° C. for 12 hours.
- the obtained alumina-polymethyl methacrylate composite was immersed in a 10% NaOH aqueous solution for 8 hours to dissolve aluminum and alumina, thereby preparing a nanoarray composed of polymethyl methacrylate.
- the resulting methyl polymethacrylate nano-arrays 0. lmo 1 of (NH 4) immersed for 5 minutes at 30 ° C in an aqueous solution containing H 3 B0 3 of 2 T i F 6 and 0. 2mo 1 / L A titanium oxide film was formed in the pores of the poly (methyl methacrylate) nanoarray.
- indium was vapor-deposited on the titanium oxide film side at 10 O nm
- nickel film was formed on the indium by 3 ⁇ by electrolytic plating.
- the obtained nanoarray electrode was immersed in acetone to dissolve the polymethyl methacrylate, and baked at 550 ° C for 3,0 minutes to produce a titanium oxide nanoarray electrode.
- ruthenium dye SOLARON IX Co. Ru teni urn 535- bis TB A
- ethanol solution 5. 0 X 10- 4 mo l / L
- the resulting group S N_ ⁇ titanium oxide surface and the surface resistance of 1 5 ⁇ 3 q of plate 2 F glass (glass board on the S n0 2: F film transparent conductive glass obtained by forming a) a transparent conductive layer
- a counter electrode on which platinum was deposited to a thickness of 10 nm was combined, and 0.1 mo 1 / L of lithium iodide, 0.5 mo 1 ZL of iodide 1-propyl-2,3-dimethylimidazolym, 0
- a 3-methoxypropionitrile solution containing 5 mo1 / L of 4-t, butylpyridine and 0.05 mol / L of iodine was impregnated by capillary action, and the periphery was sealed with an epoxy adhesive.
- the N i electrode contact Yopi S n O 2 electrode was connected a lead wire.
- the cell obtained in this way was irradiated with simulated sunlight, and the current-voltage characteristics were measured.
- the photoelectric conversion efficiency was 6%, indicating good photoelectric conversion characteristics.
- An aluminum substrate (Toyo Aluminum Co., purity: 99.99%) is anodized at 70 ° C in a mixed solution of monophosphate and sulfuric acid (33 OmL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 mL of ethylene glycol, and 80 mL of water) at 70 ° C.
- monophosphate and sulfuric acid 33 OmL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 mL of ethylene glycol, and 80 mL of water
- graphite as a cathode, a constant current electrolytic treatment was performed with 25 OmAZcm 2 for 5 minutes, followed by washing with water and drying.
- the obtained anodized substrate is subjected to a diameter expansion treatment in a 5% phosphoric acid aqueous solution for 40 minutes to finally obtain a highly regular anodized porous alumina film having a thickness of about 6 ⁇ , a pitch of 100 nm, and a pore diameter of 75 nm.
- a highly regular anodized porous alumina film having a thickness of about 6 ⁇ , a pitch of 100 nm, and a pore diameter of 75 nm.
- ITO was formed on the titanium oxide film by DC magnetron sputtering to a thickness of 150 nm, and then immersed in a 10% NaOH aqueous solution for 12 hours to dissolve the aluminum and alumina. While heating the obtained titanium oxide nanoarray substrate to 120 ° C, 0.5 mo1 / L of copper iodide. The Zacetonitrile solution was gradually dropped from the side opposite to the ITO film surface to oxidize. A copper iodide film was formed in the pores of the titanium nanoarray. Furthermore, 3 O nm of gold was deposited on the copper iodide film to form a solar cell. The cell obtained in this way was irradiated with simulated sunlight, and the current-voltage characteristics were measured. The photoelectric conversion efficiency was 4%, indicating good photoelectric conversion characteristics.
- An aluminum substrate (manufactured by Toyo Aluminum Co., Ltd., purity: 99.99%) was mixed with a solution of aluminum phosphate at 70 ° C in a mixed solution of monophosphate and sulfuric acid (33 OmL of 85% phosphoric acid; 75 mL of concentrated sulfuric acid; Using Vum as anode and graphite as cathode, constant current electrolytic treatment was carried out with 25 OmAZcm 2 for 5 minutes, followed by washing with water and drying.
- the obtained anodized substrate is subjected to a diameter enlargement treatment in a 5% phosphoric acid aqueous solution for 40 minutes to finally obtain a highly regular anodized porous alumina film having a film thickness of about 1 ⁇ , a pitch of 100 nm, and a pore diameter of 75 nm.
- a highly regular anodized porous alumina film having a film thickness of about 1 ⁇ , a pitch of 100 nm, and a pore diameter of 75 nm.
- the substrate After forming a gold film in the pores of the obtained anodized porous alumina film by electroless plating, the substrate is immersed in a polyphenylenevinylene (PPV) precursor solution and treated at 220 ° C for 120 minutes. As a result, a 20-nm PPV film was formed. Furthermore, a 30 nm [6,6] -PCBM film is formed by immersing the fullerene derivative ([6,6] -PCBM) in a black-mouthed form solution as shown below, and ITO is formed on the film. 150 nm was formed by sputtering.
- PPV polyphenylenevinylene
- the cell thus obtained was irradiated with simulated sunlight, and the current-voltage characteristics were measured.
- the photoelectric conversion efficiency was 2.5%, indicating good photoelectric conversion characteristics.
- An aluminum substrate manufactured by Toyo Aluminum Co., purity: 99.99%) was placed in a mixed solution of monophosphate and sulfuric acid (330 mL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 mL of ethylene glycol, and 80 mL of water).
- a mixed solution of monophosphate and sulfuric acid 330 mL of 85% phosphoric acid, 75 mL of concentrated sulfuric acid, 15 mL of ethylene glycol, and 80 mL of water.
- graphite as a cathode, a constant current electrolytic treatment was performed with 25 OmAZ c ⁇ 2 for 5 minutes, followed by washing with water and drying.
- the obtained anodized substrate is subjected to a diameter enlargement treatment in a 5% phosphoric acid aqueous solution for 40 minutes, and finally, a highly regular anodized porous alumina film having a film thickness of about 6 ⁇ ⁇ , a pitch of 100 nm, and a pore diameter of 75 nm is obtained. Obtained.
- a titanium oxide film was formed in the pores of the anodized porous alumina film, and baked at 550 ° C. for 30 minutes to produce a titanium oxide nanoarray electrode. Furthermore, a gold film was formed by electroless plating in the pores of the obtained nanoarray, and then immersed in an aqueous solution of mercrichromium and left at room temperature for 15 hours. As a result, mercury chromium, which is a sensitizing dye, was adsorbed and coated on the gold formed on the titanium oxide film.
- the cell obtained in this way was irradiated with simulated sunlight, and the current-voltage characteristics were measured.
- the photoelectric conversion efficiency was 1.5%, indicating good photoelectric conversion characteristics.
- Figure 1 is a schematic diagram of the fabrication of a nanoarray electrode.
- FIG. 2 is an example of a schematic diagram when an organic semiconductor material is used.
- FIG. 3 is a schematic diagram of an example in which an organic semiconductor material is used.
- FIG. 4 shows an example in which the domain structure of the photoelectric conversion layer is a continuous layer.
- FIG. 5 shows an example in which the domain structure of the photoelectric conversion layer is a quantum well structure.
- FIG. 6 shows another example in which the domain structure of the photoelectric conversion layer is a quantum well structure.
- FIG. 7 is an example of a cross section of a photoelectric conversion element.
- FIG. 8 shows another example of the cross section of the photoelectric conversion element.
- FIG. 9 is another example of the cross section of the photoelectric conversion element.
- FIG. 10 is an example of a layer structure of a photoelectric conversion element.
- FIG. 11 shows another example of the cross section of the photoelectric conversion element. (Explanation of code)
- Nanoarray electrode composed of a compound having an electron-accepting or electron-donating structure
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Abstract
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EP04793391A EP1696053B1 (en) | 2003-12-18 | 2004-10-29 | Nano-array electrode manufacturing method and photoelectric converter using same |
CN2004800407597A CN1906332B (zh) | 2003-12-18 | 2004-10-29 | 纳米阵列电极的制造方法以及使用其的光电转换元件 |
AU2004303637A AU2004303637B2 (en) | 2003-12-18 | 2004-10-29 | Nano-array electrode manufacturing method and photoelectric converter using same |
US11/424,242 US20060234505A1 (en) | 2003-12-18 | 2006-06-15 | Method for manufacturing nano-array electrode and photoelectric conversion device using same |
US12/643,298 US7977131B2 (en) | 2003-12-18 | 2009-12-21 | Method for manufacturing nano-array electrode and photoelectric conversion device using same |
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JP2003-421625 | 2003-12-18 | ||
JP2003421625A JP4583025B2 (ja) | 2003-12-18 | 2003-12-18 | ナノアレイ電極の製造方法およびそれを用いた光電変換素子 |
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US11/424,242 Continuation US20060234505A1 (en) | 2003-12-18 | 2006-06-15 | Method for manufacturing nano-array electrode and photoelectric conversion device using same |
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EP (1) | EP1696053B1 (ja) |
JP (1) | JP4583025B2 (ja) |
CN (1) | CN1906332B (ja) |
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US7977131B2 (en) | 2011-07-12 |
US20100132772A1 (en) | 2010-06-03 |
AU2004303637B2 (en) | 2010-02-11 |
JP4583025B2 (ja) | 2010-11-17 |
CN1906332B (zh) | 2010-12-22 |
EP1696053A1 (en) | 2006-08-30 |
US20060234505A1 (en) | 2006-10-19 |
JP2005183150A (ja) | 2005-07-07 |
EP1696053A4 (en) | 2008-03-05 |
AU2004303637A1 (en) | 2005-07-07 |
CN1906332A (zh) | 2007-01-31 |
EP1696053B1 (en) | 2012-12-05 |
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