WO2011083527A1 - 光電変換用色素、半導体電極、光電変換素子、太陽電池、および、新規ピロリン系化合物 - Google Patents
光電変換用色素、半導体電極、光電変換素子、太陽電池、および、新規ピロリン系化合物 Download PDFInfo
- Publication number
- WO2011083527A1 WO2011083527A1 PCT/JP2010/006773 JP2010006773W WO2011083527A1 WO 2011083527 A1 WO2011083527 A1 WO 2011083527A1 JP 2010006773 W JP2010006773 W JP 2010006773W WO 2011083527 A1 WO2011083527 A1 WO 2011083527A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- photoelectric conversion
- dye
- semiconductor layer
- semiconductor
- Prior art date
Links
- 0 **N(C(C(*)=C1*)=C(*)C#N)C1=O Chemical compound **N(C(C(*)=C1*)=C(*)C#N)C1=O 0.000 description 2
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/44—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having three double bonds between ring members or between ring members and non-ring members
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B21/00—Thiazine dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
- C09B23/0008—Methine or polymethine dyes, e.g. cyanine dyes substituted on the polymethine chain
- C09B23/005—Methine or polymethine dyes, e.g. cyanine dyes substituted on the polymethine chain the substituent being a COOH and/or a functional derivative thereof
- C09B23/0058—Methine or polymethine dyes, e.g. cyanine dyes substituted on the polymethine chain the substituent being a COOH and/or a functional derivative thereof the substituent being CN
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
- C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
- C09B23/04—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups one >CH- group, e.g. cyanines, isocyanines, pseudocyanines
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
- C09B23/10—The polymethine chain containing an even number of >CH- groups
- C09B23/105—The polymethine chain containing an even number of >CH- groups two >CH- groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B57/00—Other synthetic dyes of known constitution
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2059—Light-sensitive devices comprising an organic dye as the active light absorbing material, e.g. adsorbed on an electrode or dissolved in solution
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
- H10K30/81—Electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6572—Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
- H01G9/2031—Light-sensitive devices comprising an oxide semiconductor electrode comprising titanium oxide, e.g. TiO2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
Definitions
- the present invention relates to a photoelectric conversion dye, a semiconductor electrode, a photoelectric conversion element, a solar cell, and a novel pyrroline compound.
- a dye-sensitized solar cell (Gretzel solar cell) (Non-patent Document 1 and Patent Document 1) proposed by Dr. Gretzer et al. In 1991 of Switzerland is produced by a simple manufacturing process. It is expected as a next-generation solar cell because it can achieve the same conversion efficiency.
- a Gretzel type dye-sensitized solar cell is a semiconductor electrode in which a semiconductor layer having a dye adsorbed on a conductive substrate is formed, a counter electrode made of a conductive substrate opposite to this electrode, and held between both electrodes. An electrolyte layer.
- the adsorbed dye absorbs light and enters an excited state, and electrons are injected from the excited dye into the semiconductor layer.
- the dye that is in an oxidized state due to the emission of electrons returns to the original dye by transferring electrons to the dye by the oxidation reaction of the redox agent in the electrolyte layer. Then, the redox agent that has donated electrons to the dye is reduced again on the counter electrode side. This series of reactions functions as a battery.
- Gretzel type dye-sensitized solar cells the effective reaction surface area is increased about 1000 times by using porous titanium oxide in which fine particles are sintered in the semiconductor layer, and a larger photocurrent can be extracted than before. This is a major feature.
- a ruthenium complex is used as a sensitizing dye, and specifically, cis-bis (isothiocyanato) -bis- (2,2′-bipyridyl-4,4′-dicarboxylic acid).
- Ruthenium (II) ditetrabutylammonium complex cis-bis (isothiocyanato) -bis- (2,2′-bipyridyl-4,4′-dicarboxylic acid) ruthenium (II) and other ruthenium bipyridine complexes, and terpyridine complexes
- One type of tris (isothiocyanato) (2,2 ′: 6 ′, 2 ′′ -terpyridyl-4,4 ′, 4 ′′ -tricarboxylic acid) ruthenium (II) tritetrabutylammonium complex is used.
- Patent Document 6 describes a novel merocyanine dye and a method for producing the same.
- a problem with dye-sensitized solar cells using ruthenium complexes is that noble metal ruthenium is used as a raw material for the dye.
- noble metal ruthenium is used as a raw material for the dye.
- organic dyes of non-ruthenium complexes have recently been proposed as sensitizing dyes in dye-sensitized solar cells.
- examples thereof include coumarin dyes (Patent Document 2), cyanine dyes (Patent Document 3), merocyanine dyes (Patent Documents 4 and 5), and the like. Since these organic dyes have a larger molar extinction coefficient than a ruthenium complex and also have a high degree of freedom in molecular design, development of dyes with high photoelectric conversion efficiency is expected. However, these organic dyes have a problem that it is difficult to obtain high photoelectric conversion efficiency as compared with a ruthenium complex.
- the present invention has been made to solve the above-described problems, and provides a pyrroline compound, a photoelectric conversion dye, a semiconductor electrode, a photoelectric conversion element, and a solar cell that are excellent in photoelectric conversion characteristics. .
- a photoelectric conversion dye comprising at least one compound represented by the following general formula (1).
- R 1 and R 2 are —CN, —SO 2 R, —COOR, —CONR 2 (R is a hydrogen atom, a substituted or unsubstituted alkyl group, a cycloalkyl group, or an aryl group)
- R 3 represents a direct bond or a substituted or unsubstituted alkylene group
- X represents an acidic group
- D represents an electron-donating substituent. It represents an organic group or a substituted or unsubstituted heterocyclic group.
- a semiconductor electrode having a semiconductor layer in which at least one kind of the photoelectric conversion dye is adsorbed.
- a photoelectric conversion element using the semiconductor electrode there is provided a photoelectric conversion element using the semiconductor electrode.
- a solar cell including the photoelectric conversion element.
- R 1 and R 2 are —CN, —SO 2 R, —COOR, —CONR 2 (R is a hydrogen atom, a substituted or unsubstituted alkyl group, a cycloalkyl group, or an aryl group)
- R 3 represents a direct bond or a substituted or unsubstituted alkylene group
- X represents an acidic group
- D represents an electron-donating substituent. Represents an aryl group or a substituted or unsubstituted heterocyclic group.
- a pyrroline compound, a photoelectric conversion dye, a semiconductor electrode, a photoelectric conversion element, and a solar cell excellent in photoelectric conversion characteristics are realized.
- the compound of this embodiment is a pyrroline compound represented by the following general formula (1).
- R 1 and R 2 represent any one of —CN, —SO 2 R, —COOR, and —CONR 2 .
- R represents a hydrogen atom, a substituted or unsubstituted alkyl group (for example, methyl group, ethyl group, propyl group, butyl group) and a cycloalkyl group (for example, cyclopentyl group, cyclohexyl group). Or an aryl group (for example, a phenyl group, a tolyl group, a naphthyl group, etc.).
- R 3 represents a direct bond or a substituted or unsubstituted alkylene group (for example, a methylene group, an ethylene group, a propylene group, a butylene group, etc., among which an alkylene group having 2 or less carbon atoms is preferable).
- X represents an acidic group (for example, a carboxy group, a hydroxy group, a sulfonic acid group, or a phosphonic acid group, among which a carboxy group is particularly preferable).
- the pyrroline compound represented by the general formula (1) is used by being adsorbed on a semiconductor layer when a semiconductor electrode is produced. Therefore, it is necessary to have a functional group that can be adsorbed to the semiconductor layer in the molecule.
- the acidic group represented by X plays its role.
- D represents an organic group containing an electron-donating substituent or a substituted or unsubstituted heterocyclic group.
- organic group containing an electron donating substituent include an electron donating substituent or an electron donating substituent substituted with an organic group other than an electron donating group.
- an aryl group is mentioned as organic groups other than an electron-donating group.
- the aryl group in D is a monovalent aromatic hydrocarbon group.
- the aromatic ring include aromatic rings having 6 to 22 carbon atoms such as benzene, naphthalene, anthracene, indene, azulene, fluorene, phenanthrene and the like. Is mentioned.
- these aryl groups may further have a substituent other than the electron donating substituent.
- heterocyclic ring of the heterocyclic group in D examples include indole, carbazole, furan, thiophene, pyrrole, pyridine, quinoline, imidazole, oxazole, isoxazole, thiazole, isothiazole, pyrazole, acridine, phenoxazine, xanthene, benzoxazole , Benzothiazole, benzimidazole and the like. Further, these heterocyclic groups may further have a substituent.
- Examples of the electron-donating substituent in D include an amino group, a hydroxy group, and an alkoxy group that may have a substituent.
- an amino group which may have a substituent a di-substituted amino group is preferable. In the case of a disubstituted amino group, the substituents may form a ring.
- Table 2 shows examples of structures other than D of the pyrroline compound represented by the general formula (1).
- FIG. 1 is a cross-sectional view schematically showing an example of the configuration of the photoelectric conversion element of the present embodiment.
- the photoelectric conversion element shown in FIG. 1 includes a semiconductor electrode 4, a counter electrode 8, and an electrolyte layer 5 held between both electrodes.
- the semiconductor electrode 4 includes a light transmissive substrate 3, a transparent conductive layer 2, and a semiconductor layer 1.
- the counter electrode 8 includes a catalyst layer 6 and a substrate 7. Note that a dye is adsorbed on the semiconductor layer 1.
- the dye adsorbed on the semiconductor layer 1 When light is incident on the photoelectric conversion element of this embodiment, the dye adsorbed on the semiconductor layer 1 is excited and emits electrons. The electrons move to the conduction band of the semiconductor, and further move to the transparent conductive layer 2 by diffusion. The electrons in the transparent conductive layer 2 move to the counter electrode 8 via an external circuit (not shown). Then, the electrolyte layer 5 is returned to the oxidized pigment again, and the pigment is regenerated to function as a battery.
- each component will be described with reference to FIG.
- the semiconductor electrode 4 includes a light transmissive substrate 3, a transparent conductive layer 2, and a semiconductor layer 1.
- a light transmissive substrate 3, a transparent conductive layer 2, and a semiconductor layer 1 are stacked in this order from the outside to the inside of the element.
- the semiconductor layer 1 is adsorbed with a dye (not shown in FIG. 1).
- the conductive substrate may have a single layer structure in which the substrate itself has conductivity, or a two-layer structure in which a conductive layer is formed on the substrate.
- FIG. 1 shows an example of a conductive substrate having a two-layer structure in which a transparent conductive layer 2 is formed on a light-transmitting substrate 3.
- the substrate include a glass substrate, a plastic substrate, and a metal plate, and among them, a substrate having high light transmittance, for example, a transparent substrate is particularly preferable.
- the material for the transparent plastic substrate include polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), polycycloolefin, polyphenylene sulfide, and the like.
- the type of the conductive layer formed on the substrate is not particularly limited, but for example, indium tin oxide (ITO), fluorine doped tin oxide (ITO)
- the transparent conductive layer 2 made of a transparent material such as Fluorine doped Tin Oxide (FTO), indium zinc oxide (IZO), tin oxide (SnO 2) is preferable.
- the transparent conductive layer 2 may be formed in a film shape on the entire surface or a part of the surface of the substrate. Although the film thickness etc. of the transparent conductive layer 2 can be suitably selected, the film thickness is preferably about 0.02 ⁇ m or more and 10 ⁇ m or less. Such a manufacturing method of the transparent conductive layer 2 can be realized by using a well-known technique, and thus description thereof is omitted here.
- the conductive substrate of this embodiment can also use a metal lead wire for the purpose of reducing the resistance of the conductive substrate.
- the metal lead wire include metals such as aluminum, copper, gold, silver, platinum, and nickel.
- the metal lead wire is produced by vapor deposition, sputtering, etc., and a method of providing ITO or FTO thereon, or after providing the transparent conductive layer 2 on the substrate (for example, the light transmissive substrate 3), the metal lead on the transparent conductive layer A wire may be made.
- a single semiconductor such as silicon or germanium, a metal chalcogenide, a compound having a perovskite structure, or the like can be used.
- Metal chalcogenides include titanium, tin, zinc, iron, tungsten, indium, zirconium, vanadium, niobium, tantalum, strontium, hafnium, cerium, or lanthanum oxide, cadmium, zinc, lead, silver, antimony, or bismuth. Sulfide, cadmium or lead selenide, cadmium telluride and the like.
- Examples of other compound semiconductors include phosphides such as zinc, gallium, indium, cadmium, gallium arsenide, copper-indium-selenide, copper-indium-sulfide, and the like.
- Examples of the compound having a perovskite structure include known semiconductor materials such as barium titanate, strontium titanate, and potassium niobate. These semiconductor materials can be used alone or in combination of two or more.
- the semiconductor layer 1 is preferably made of a semiconductor material containing titanium oxide or zinc oxide, and most preferably made of a semiconductor material containing titanium oxide. It should be configured.
- titanium oxide examples include anatase-type titanium oxide, rutile-type titanium oxide, amorphous titanium oxide, various titanium oxides such as metatitanic acid and orthotitanic acid, and titanium-containing titanium oxide composites.
- anatase type titanium oxide is preferable from the viewpoint of further improving the stability of photoelectric conversion.
- Examples of the shape of the semiconductor layer 1 include a porous semiconductor layer obtained by sintering semiconductor fine particles and the like, and a thin film semiconductor layer obtained by a sol-gel method, a sputtering method, a spray pyrolysis method, and the like. Moreover, it is good also as the semiconductor layer 1 which consists of a fibrous semiconductor layer and an acicular crystal
- the shape of the semiconductor layer 1 can be appropriately selected according to the purpose of use of the photoelectric conversion element. Among these, the semiconductor layer 1 having a large specific surface area such as a porous semiconductor layer or a needle-like semiconductor layer is preferable from the viewpoint of the amount of dye adsorption.
- the semiconductor layer 1 may be a single layer or a multilayer. By forming the multilayer, the semiconductor layer 1 having a sufficient thickness can be formed more easily.
- the porous multilayer semiconductor layer 1 formed from semiconductor fine particles may be composed of a plurality of semiconductor layers having different average particle diameters of the semiconductor fine particles. For example, the average particle diameter of the semiconductor fine particles of the semiconductor layer closer to the light incident side (first semiconductor layer) may be smaller than that of the semiconductor layer farther from the light incident side (second semiconductor layer).
- the first semiconductor layer absorbs a lot of light, and the light that has passed through the first semiconductor layer is efficiently scattered by the second semiconductor layer and returned to the first semiconductor layer, and the returned light is returned to the first semiconductor layer.
- the film thickness of the semiconductor layer 1 is not particularly limited, but is set to, for example, 0.5 ⁇ m or more and 45 ⁇ m or less from the viewpoint of permeability, conversion efficiency, and the like.
- the specific surface area of the semiconductor layer 1 can be, for example, 10 m 2 / g or more and 200 m 2 / g or less from the viewpoint of adsorbing a large amount of dye.
- the porosity of the porous semiconductor layer 1 is set to 40%, for example. It is preferable to be 80% or less.
- the porosity is the percentage of the volume of the semiconductor layer 1 occupied by the pores in the semiconductor layer 1 in percent.
- the porous semiconductor layer 1 is prepared by adding semiconductor fine particles together with an organic compound such as a resin and a dispersing agent to a dispersion medium such as an organic solvent or water. And this suspension is apply
- an organic compound is added to the dispersion medium together with the semiconductor fine particles, the organic compound burns during firing, and a sufficient gap can be secured in the porous semiconductor layer 1.
- the porosity can be changed by controlling the molecular weight and the addition amount of the organic compound combusted during firing.
- Any organic compound can be used as long as it dissolves in the suspension and can be removed by burning when baked.
- examples thereof include polymers and copolymers of vinyl compounds such as esters and methacrylates.
- the type and amount of the resin can be appropriately selected and adjusted depending on the state of the fine particles used, the total weight of the entire suspension, and the like.
- the ratio of the semiconductor fine particles is 10 wt% or more with respect to the total weight of the entire suspension
- the strength of the produced film can be further sufficiently increased, and the ratio of the semiconductor fine particles is If it is 40 wt% or less with respect to the total weight, the porous semiconductor layer 1 having a large porosity can be obtained more stably, so the ratio of the semiconductor fine particles is 10 wt% with respect to the total weight of the entire suspension. % Or more and 40 wt% or less is preferable.
- semiconductor fine particles single or plural compound semiconductor particles having an appropriate average particle diameter, for example, an average particle diameter of about 1 nm to 500 nm can be used. Among these, from the viewpoint of increasing the specific surface area, those having an average particle diameter of about 1 nm to 50 nm are desirable. In order to increase the utilization factor of incident light, semiconductor particles having a relatively large average particle diameter of about 200 nm to 400 nm may be added.
- Examples of the method for producing semiconductor fine particles include a sol-gel method such as a hydrothermal synthesis method, a sulfuric acid method, and a chlorine method. Any method can be used as long as it can produce the desired fine particles. From this point of view, it is preferable to synthesize by a hydrothermal synthesis method.
- dispersion medium for the suspension examples include glyme solvents such as ethylene glycol monomethyl ether; alcohols such as isopropyl alcohol; and mixed solvents such as isopropyl alcohol / toluene; and water.
- glyme solvents such as ethylene glycol monomethyl ether
- alcohols such as isopropyl alcohol
- mixed solvents such as isopropyl alcohol / toluene
- Examples of the method for applying the suspension include known methods such as a doctor blade method, a squeegee method, a spin coating method, and a screen printing method.
- coating suspension drying and baking of a coating film are performed.
- the conditions for drying and firing are, for example, about 10 seconds to 12 hours in the range of about 50 ° C. to 800 ° C. in the air or in an inert gas atmosphere. This drying and baking can be performed once at a single temperature or twice or more at different temperatures.
- porous semiconductor layer 1 In addition, although the formation method of the porous semiconductor layer 1 was explained in full detail here, the other kind of semiconductor layer 1 can also be formed using various well-known methods.
- adsorbing the dye to the semiconductor layer for example, a method in which the semiconductor substrate, that is, the conductive substrates 2 and 3 including the semiconductor layer 1, is immersed in a solution in which the dye is dissolved, or a dye solution is applied to the semiconductor layer 1.
- suck is mentioned.
- Solvents for this solution include nitrile solvents such as acetonitrile, propionitrile, methoxyacetonitrile, alcohol solvents such as methanol, ethanol, isopropyl alcohol, ketone solvents such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, and ethyl acetate.
- nitrile solvents such as acetonitrile, propionitrile, methoxyacetonitrile
- alcohol solvents such as methanol, ethanol, isopropyl alcohol
- ketone solvents such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, and ethyl acetate.
- Ester solvents such as butyl acetate, ether solvents such as tetrahydrofuran and dioxane, amide solvents such as N, N-dimethylformamide, N, N-dimethylacetamide and N-methyl-2-pyrrolidone, dichloromethane, chloroform and dichloroethane And halogen solvents such as trichloroethane and chlorobenzene, hydrocarbon solvents such as toluene, xylene and cyclohexane, water and the like. These may be used alone or in admixture of two or more.
- the solution when immersed in the dye solution for a certain period of time, the solution can be stirred, heated to reflux, or ultrasonic waves can be applied.
- a solvent such as alcohol
- the amount of the dye supported may be in the range of 1 ⁇ 10 ⁇ 10 mol / cm 2 to 1 ⁇ 10 ⁇ 4 mol / cm 2 , particularly 1 ⁇ 10 ⁇ 9 to 9.0 ⁇ 10 ⁇ 6 mol / A range of cm 2 or less is preferred. This is because within this range, the effect of improving the photoelectric conversion efficiency can be obtained economically and sufficiently.
- two or more types of dyes may be mixed and used. It is preferable to select the type and ratio as appropriate.
- an additive may be used in combination when adsorbing the dye in order to suppress a decrease in conversion efficiency due to the association between the dyes.
- the additive include steroidal compounds having a carboxy group (for example, deoxycholic acid, cholic acid, chenodeoxycholic acid, etc.).
- the counter electrode 8 in this embodiment has a catalyst layer 6 on a substrate 7.
- the catalyst layer 6 of the counter electrode 8 can be a metal vapor deposition film formed on the substrate 7 by vapor deposition or the like.
- a Pt layer formed on the substrate 7 may be used.
- the catalyst layer 6 of the counter electrode 8 may contain a nanocarbon material.
- the catalyst layer 6 of the counter electrode 8 may be formed by sintering a paste containing carbon nanotubes, carbon nanohorns, or carbon fibers on the porous insulating film. Nanocarbon materials have a large specific surface area and can improve the probability of annihilation of electrons and holes.
- the substrate 7 include a transparent substrate such as glass and a polymer film, and a metal plate (foil).
- a glass with a transparent conductive film is selected as the substrate 7, and platinum or carbon is formed thereon as the catalyst layer 6 by vapor deposition or sputtering. Can be produced.
- the electrolyte layer 5 used in the present embodiment needs to have a function of transporting holes generated from the dye adsorbed on the semiconductor layer 1 due to the incidence of light to the counter electrode 8, and the redox couple is dissolved in an organic solvent.
- a gel electrolyte obtained by impregnating a polymer matrix with a liquid obtained by dissolving a redox couple in an organic solvent, a molten salt containing a redox couple, a solid electrolyte, an organic hole transport material, and the like can be used.
- the electrolyte layer 5 can be comprised with an electrolyte, a solvent, and an additive.
- metal bromide such as LiBr, NaBr, KBr, CsBr and CaBr 2
- a bromide such as a bromide salt of a quaternary ammonium compound such as tetraalkylammonium bromide and pyridinium bromide
- metal complexes such as ferricyanate and ferrocene-ferricinium ions
- sulfur compounds such as sodium polysulfide and alkylthiol-alkyldisulfides
- LiI, pyridinium iodide, or a combination of imidazolium iodide and I 2 is preferable.
- said electrolyte may be individual, or may mix and use 2 or more types.
- a molten salt that is in a molten state at room temperature can be used as the electrolyte.
- a solvent is not particularly required.
- Examples of the solvent for the electrolyte layer 5 include carbonate solvents such as ethylene carbonate, diethyl carbonate, dimethyl carbonate, and propylene carbonate, amide solvents such as N-methyl-2-pyrrolidone and N, N-dimethylformamide, and methoxypropio.
- carbonate solvents such as ethylene carbonate, diethyl carbonate, dimethyl carbonate, and propylene carbonate
- amide solvents such as N-methyl-2-pyrrolidone and N, N-dimethylformamide, and methoxypropio.
- Nitrile solvents such as nitrile, propionitrile, methoxyacetonitrile, acetonitrile, lactone solvents such as ⁇ -butyrolactone and valerolactone, ether solvents such as tetrahydrofuran, dioxane, diethyl ether, ethylene glycol dialkyl ether, methanol, ethanol, isopropyl Alcohol solvents such as alcohol, aprotic polar solvents such as dimethyl sulfoxide and sulfolane, 2-methyl-3-oxazolidinone, 2-methyl-1,3- Heterocyclic compounds such as oxolane like. These solvents may be used as a mixture of two or more if necessary.
- a basic additive may be added to the electrolyte layer 5 in the present embodiment in order to suppress dark current.
- the type of basic additive is not particularly limited, and examples thereof include t-butylpyridine, 2-picoline, 2,6-lutidine, and the like.
- the addition concentration in the case of adding a basic compound is, for example, about 0.05 mol / L or more and 2 mol / L or less.
- a solid electrolyte can also be used as the electrolyte.
- a gel electrolyte or a completely solid electrolyte can be used as the solid electrolyte.
- a gelling agent to which an electrolyte or a room temperature molten salt is added can be used.
- gelation can be performed by a technique such as addition of a polymer or an oil gelling agent, polymerization of coexisting polyfunctional monomers, or a crosslinking reaction of the polymer.
- examples of the polymer for gelation by adding a polymer include polyacrylonitrile and polyvinylidene fluoride.
- Oil gelling agents include dibenzylden-D-sorbitol, cholesterol derivatives, amino acid derivatives, alkylamide derivatives of trans- (1R, 2R) -1,2-cyclohexanediamine, alkylurea derivatives, N-octyl-D-glucone. Amidobenzoates, double-headed amino acid derivatives, quaternary ammonium salt derivatives and the like can be mentioned.
- the monomer used is preferably a compound having two or more ethylenically unsaturated groups, such as divinylbenzene, ethylene glycol dimethacrylate, ethylene glycol diacrylate, diethylene glycol dimethacrylate, Examples include diethylene glycol diacrylate, triethylene glycol dimethacrylate, triethylene glycol diacrylate, pentaerythritol triacrylate, trimethylolpropane triacrylate, and the like.
- a monofunctional monomer may be included in addition to the polyfunctional monomer.
- Monofunctional monomers include esters and amides derived from acrylic acid such as acrylamide, N-isopropylacrylamide, methyl acrylate, hydroxyethyl acrylate, and ⁇ -alkyl acrylic acids, dimethyl maleate, diethyl fumarate, dibutyl maleate Esters derived from maleic acid and fumaric acid such as dienes such as butadiene, isoprene and cyclopentadiene, aromatic vinyl compounds such as styrene, p-chlorostyrene and sodium styrenesulfonate, vinyl esters such as vinyl acetate , Nitriles such as acrylonitrile and methacrylonitrile, vinyl compounds having a nitrogen-containing heterocycle such as vinyl carbazole, vinyl compounds having a quaternary ammonium salt, N-vinylformamide, vinyl sulfonic acid, vinyl Nfuruoraido, vinyl
- the above monomer can be polymerized by a radical polymerization method.
- the radical polymerization of the monomer for gel electrolyte can be performed by heating, light, ultraviolet light, electron beam or electrochemically.
- the polymerization initiator used when forming a crosslinked polymer by heating include azo initiators such as 2,2′-azobis (isobutyronitrile) and 2,2′-azobis (dimethylvaleronitrile), Examples thereof include peroxide initiators such as benzoyl peroxide.
- the addition amount of the polymerization initiator is preferably 0.01% by mass or more and 15% by mass or less, and more preferably 0.05% by mass or more and 10% by mass or less with respect to the total amount of monomers.
- crosslinkable reactive groups are nitrogen-containing heterocycles such as pyridine ring, imidazole ring, thiazole ring, oxazole ring, triazole ring, morpholine ring, piperidine ring, piperazine ring, and preferred crosslinkers are alkyl halides, halogenated alkyls.
- Bifunctional or higher functional reagents capable of electrophilic substitution with respect to nitrogen atoms such as aralkyl, sulfonic acid ester, acid anhydride, acid chloride, and isocyanate are exemplified.
- a mixture of an electrolyte and an ion conductive polymer compound can be used.
- examples of the ion conductive polymer compound include polar polymer compounds such as polyethers, polyesters, polyamines, and polysulfides.
- copper iodide, copper thiocyanide, or the like can be introduced into the electrode by a method such as a casting method, a coating method, a spin coating method, a dipping method, or electrolytic plating.
- an organic hole transport material can be used instead of the electrolyte.
- organic hole transport materials include 2,2 ′, 7,7′-tetrakis (N, N-di-p-methoxyphenylamine) -9,9′-spirobifluorene (Adv. Mater. 2005, 17, 813), aromatic diamines such as N, N′-diphenyl-N, N′-bis (3-methylphenyl)-(1,1′-biphenyl) -4,4′-diamine (US Pat. No. 4,764). 625), triphenylamine derivatives (JP-A-4-129271), stilbene derivatives (JP-A-2-511262), hydrazone derivatives (JP-A-2-226160), and the like.
- the organic hole transport material can be introduced into the electrode by a method such as a vacuum deposition method, a cast method, a spin coating method, a dipping method, or an electrolytic polymerization method.
- the electrolyte layer 5 of the present embodiment There are roughly two methods for producing the electrolyte layer 5 of the present embodiment.
- One is a method in which the counter electrode 8 is first bonded on the semiconductor layer 1 on which the dye is adsorbed, and a liquid is formed in the gap.
- Another method is to sandwich the electrolyte layer 5, and the other is to form the electrolyte layer 5 directly on the semiconductor layer 1. In the latter case, the counter electrode 8 is formed on the electrolyte layer 5 after it is formed.
- acetone for electronic industry, manufactured by Kanto Chemical Co., Ltd.
- hexane product code 085-00416 manufactured by Wako Pure Chemical Industries, Ltd.
- Ethyl acetate product code 051-00356 manufactured by Wako Pure Chemical Industries, Ltd.
- ⁇ max in acetonitrile of the obtained dye was 646 nm.
- ⁇ max in acetonitrile of the obtained dye was 638 nm.
- Example 1 As in Example 1, except that N-octylindole (synthesized according to the method described in J. Chem. Research (S), p88-89, 1984) was used instead of N, N-dibutylaniline. Synthesized.
- ⁇ max of the obtained dye in acetonitrile was 549 nm.
- ⁇ max of the obtained dye in acetonitrile was 579 nm.
- a glass with FTO (10 ⁇ cm 2 ) having a thickness of 15 mm ⁇ 15 mm and a thickness of 1.1 mm was prepared as a conductive substrate (light transmissive substrate with a transparent conductive layer).
- titanium oxide paste used as a material for the semiconductor layer 5 g of commercially available titanium oxide powder (product name: P25, manufactured by Nippon Aerosil Co., Ltd.), 15 vol% acetic acid aqueous solution 20 ml, surfactant 0.1 ml (product name: Triton (registered) (Trademark) X-100, manufactured by Sigma-Aldrich Co., Ltd.) and 0.3 g of polyethylene glycol (molecular weight 20000) (product code 168-11285 manufactured by Wako Pure Chemical Industries, Ltd.) were stirred for about 1 hour to prepare.
- commercially available titanium oxide powder product name: P25, manufactured by Nippon Aerosil Co., Ltd.
- 15 vol% acetic acid aqueous solution 20 ml 15 vol% acetic acid aqueous solution 20 ml
- surfactant 0.1 ml product name: Triton (registered) (Trademark) X-100, manufactured by Sigma-Aldrich Co.
- this titanium oxide paste was applied onto a glass with FTO by a doctor blade method so that the film thickness was about 50 ⁇ m (application area: 10 mm ⁇ 10 mm).
- a glass with FTO coated with titanium oxide paste is inserted into an electric furnace, and is baked at 450 ° C. for about 30 minutes in an air atmosphere to be naturally cooled, thereby forming a porous titanium oxide semiconductor layer as a semiconductor layer. It was.
- a paste is prepared by mixing titanium oxide having an average particle diameter of 300 nm with the above-described titanium oxide paste at a weight ratio of 20% of the titanium oxide paste, and by screen printing, After being coated on the porous titanium oxide semiconductor layer with a thickness of 20 ⁇ m, it was naturally cooled by baking at 450 ° C. for about 30 minutes in an air atmosphere.
- a platinum layer having an average film thickness of 1 ⁇ m was deposited as a catalyst layer on a soda lime glass plate (thickness: 1.1 mm) as a counter electrode by vacuum deposition.
- dye was made to adsorb
- a pyrroline compound P3 synthesized in Example 3 was dissolved in acetonitrile at a concentration of about 2 ⁇ 10 ⁇ 4 M.
- the semiconductor electrode having the porous titanium oxide semiconductor layer described above was immersed in this dye solution and stored overnight. Thereafter, the semiconductor electrode was taken out of the dye solution, rinsed with acetonitrile to remove excess dye, and then dried in air.
- the cell portion is formed by a thermosetting resin film in which the semiconductor electrode after the dye adsorption treatment and the counter electrode are disposed so that the semiconductor layer and the catalyst layer face each other and the electrolyte layer is allowed to penetrate into the gap.
- the periphery of was thermocompression bonded.
- ⁇ Injection of electrolyte layer An iodine-based electrolyte was injected into the above cell as an electrolyte layer from the counter electrode side using interfacial tension.
- the iodine-based electrolyte uses methoxypropionitrile (product code 134-12225, manufactured by Wako Pure Chemical Industries, Ltd.) as a solvent, and iodine (product code 092-05422, manufactured by Wako Pure Chemical Industries, Ltd.), 0.5 mol / L, iodinated.
- Lithium (product code 122-03452 manufactured by Wako Pure Chemical Industries, Ltd.) 0.1 mol / L, 4-tert-butylpyridine (product code B0388 manufactured by Tokyo Chemical Industry Co., Ltd.) 0.5 mol / L, 1,2-dimethyl- It was prepared by adjusting 3-propylimidazolium iodide (product code D3903 manufactured by Tokyo Chemical Industry Co., Ltd.) to a concentration of 0.6 mol / L.
- Photocurrent measurement The photoelectric conversion element manufactured as described above is irradiated with light having an intensity of 100 mW / cm 2 under AM 1.5 conditions with a solar simulator, and the generated electricity is measured with a current-voltage measuring device. As a result of the evaluation, a photoelectric conversion efficiency of 4.3% could be obtained.
- Example 6 As in Example 5, except that a pyrroline dye P4 was used instead of the pyrroline dye P3, a photoelectric conversion element was produced. As a result of evaluating the photoelectric conversion characteristics of the obtained device, a photoelectric conversion efficiency of 3.8% could be obtained.
- Such a photoelectric conversion element of the present invention can be used for a semiconductor electrode, a photoelectric conversion element, a solar cell, and the like.
Abstract
Description
本実施形態の化合物は、以下の一般式(1)で表されるピロリン系化合物である。
本実施形態の光電変換素子の構成の一例を模式的に示す断面図を図1に示す。図1に示した光電変換素子は、半導体電極4と、対電極8と、両極間に保持された電解質層5と、を備える。半導体電極4は、光透過性基板3と、透明導電層2と、半導体層1と、を備える。対電極8は、触媒層6と、基板7と、を備える。なお、半導体層1には色素が吸着してある。
半導体電極4は、光透過性基板3と、透明導電層2と、半導体層1と、を備える。図1では、光透過性基板3と、透明導電層2と、半導体層1と、が素子の外側から内側に向かってこの順に積層した構成となっている。なお、半導体層1には色素(図1では記載していない)が吸着してある。
導電性基板は、基板自体が導電性を有している単層構造、または、基板上に導電層を形成した2層構造であってもよい。図1には、光透過性基板3上に、透明導電層2を形成した2層構造の導電性基板の例を示してある。基板としては、例えば、ガラス基板、プラスチック基板、金属板などが挙げられ、中でも光透過性の高い基板、例えば透明な基板が特に好ましい。透明なプラスチック基板の材料としては、ポリエチレンテレフタレート(PET)、ポリエチレンナフタレート(PEN)、ポリカーボネート(PC)、ポリシクロオレフェイン、ポリフェニレンスルフィド等が挙げられる。また、基板(例えば光透過性基板3)上に形成される導電層の種類は、特に限定されるものではないが、例えば酸化インジウムスズ(Indium-Tin-Oxide:ITO)、フッ素ドープ酸化スズ(Fluorine doped Tin Oxide:FTO)、インジウム-亜鉛酸化物(Indium Zinc Oxide:IZO)、酸化スズ(SnO2)などの透明材料から構成された透明導電層2が好ましい。透明導電層2は基板の全面または一部の面に膜状に形成されていてもよい。透明導電層2の膜厚などは適宜選択することができるが、膜厚は0.02μm以上10μm以下程度が好ましい。このような透明導電層2の作製方法は、周知の技術を利用して実現できるので、ここでの説明は省略する。
半導体層1を構成する材料としては、シリコン、ゲルマニウムのような単体半導体、金属のカルコゲニド、またはペロブスカイト構造を有する化合物等を使用することができる。金属カルコゲニドとしては、チタン、スズ、亜鉛、鉄、タングステン、インジウム、ジルコニウム、バナジウム、ニオブ、タンタル、ストロンチウム、ハフニウム、セリウム、あるいはランタンの酸化物、カドニウム、亜鉛、鉛、銀、アンチモン、またはビスマスの硫化物、カドニウムまたは鉛のセレン化物、カドニウムのテルル化物等が挙げられる。他の化合物半導体としては、亜鉛、ガリウム、インジウム、カドミウム等のリン化物、ガリウム砒素、銅-インジウム-セレン化物、銅-インジウム-硫化物等が挙げられる。また、ペロブスカイト構造を有する化合物としては、チタン酸バリウム、チタン酸ストロンチウム、ニオブ酸カリウム等の公知の半導体材料が挙げられる。これらの半導体材料は単独で用いることも2種類以上を混合して用いることもできる。これらの中でも、変換効率、安定性、安全性の観点からは、半導体層1が、酸化チタンまたは酸化亜鉛を含む半導体材料により構成されていることが好ましく、最も好ましくは酸化チタンを含む半導体材料により構成されているのがよい。酸化チタンとして、さらに具体的には、アナターゼ型酸化チタン、ルチル型酸化チタン、無定形酸化チタン、メタチタン酸、オルソチタン酸などの種々の酸化チタン、含酸化チタン複合体などが挙げられる。その中でも、光電変換の安定性をさらに向上させる観点からは、アナターゼ型酸化チタンであることが好ましい。
次に、半導体層1の形成方法について、多孔性の半導体層1を例にとって説明する。多孔性の半導体層1は、例えば、半導体微粒子を樹脂などの有機化合物および分散剤とともに、有機溶媒や水など分散媒に加えて懸濁液を調製する。そして、この懸濁液を導電性基板(図1では透明導電層2)上に塗布し、これを乾燥、焼成することによって形成する。半導体微粒子とともに分散媒に有機化合物を添加しておくと、焼成時に有機化合物が燃焼して、多孔性の半導体層1内にさらに充分な隙間を確保することが可能となる。また焼成時に燃焼する有機化合物の分子量や添加量を制御することで空隙率を変化させることができる。
本実施形態の光電変換素子における色素は、上述した、一般式(1)で表される本実施形態のピロリン系化合物を用いる。
本実施形態における対電極8は、基板7上に触媒層6を有している。本実施形態の光電変換素子では、光の入射に起因して半導体層1に吸着した色素から発生したホールが、電解質層5を通して対電極8まで運ばれるが、対電極8は電子とホールが効率よく対消滅するという機能を果たせれば材料に制限はない。対電極8の触媒層6は、蒸着法などによって、基板7上に形成した金属蒸着膜とすることができる。例えば、基板7に形成されたPt層であってもよい。また、対電極8の触媒層6には、ナノカーボン材料を含んでいてもよい。例えば、カーボンナノチューブ、カーボンナノホーン、または、カーボンファイバーを含んだペーストを多孔性絶縁膜上に焼結して対電極8の触媒層6を形成してよい。ナノカーボン材料は比表面積が大きく、電子とホールの対消滅確率を向上できる。基板7としては、ガラスや高分子フィルム等の透明基板、金属板(箔)などが挙げられる。なお、光透過性の対電極3を作製するためには、基板7として透明電導膜付きガラスを選択し、その上に蒸着法やスパッタ法を用いて白金やカーボンなどを触媒層6として形成して作製することができる。
本実施形態に用いる電解質層5としては、光の入射に起因して半導体層1に吸着した色素から発生したホールを対電極8にまで輸送する機能が必要で、酸化還元対を有機溶媒に溶解した電解液、酸化還元対を有機溶媒に溶解した液体をポリマーマトリックスに含浸したゲル電解質、酸化還元対を含有する溶融塩、固体電解質、有機正孔輸送材料等を用いることができる。また、電解質層5は、電解質、溶媒及び添加物により構成することができる。
<ピロリン系化合物P1の合成>
<ピロリン系化合物P2の合成>
<ピロリン系化合物P3の合成>
<ピロリン系化合物P4の合成>
<光電変換素子の作製>
<<半導体電極および対電極の作製>>
まず、半導体電極を次のような順序で作製した。
次に、上述の酸化チタン薄膜からなる半導体層の表面に色素を吸着させた。色素には、実施例3で合成したピロリン系化合物P3を、2×10-4M程度の濃度でアセトニトリル中に溶かしたものを用いた。この色素溶液中に上述の多孔性の酸化チタン半導体層を有する半導体電極を浸して一晩保管した。その後、色素溶液から半導体電極を取り出し、アセトニトリルでリンスして余分な色素を除去し、その後、空気中で乾燥させた。
上述の色素吸着処理後の半導体電極と上述の対電極とを、半導体層と触媒層が対向するように配置し、電解質層が隙間に浸透できるだけの切り目を入れた熱硬化性樹脂フィルムによりセル部分の周囲を熱圧着した。
上述のセルに電解質層としてヨウ素系電解質を対電極側から界面張力を利用して注入した。ヨウ素系電解質は、溶剤にメトキシプロピオニトリル(和光純薬工業社製商品コード134-12225)を用い、ヨウ素(和光純薬工業社製商品コード092-05422)を0.5mol/L、ヨウ化リチウム(和光純薬工業社製商品コード122-03452)を0.1mol/L、4-tert-ブチルピリジン(東京化成工業社製商品コードB0388)を0.5mol/L、1,2-ジメチル-3-プロピルイミダゾリウムアイオダイド(東京化成工業社製商品コードD3903)を0.6mol/Lの濃度となるように調整して作製した。
上述のようにして作製した光電変換素子に、ソーラーシミュレータでAM1.5条件下の100mW/cm2の強度の光を照射して、発生した電気を電流電圧測定装置で測定し、光電変換特性を評価した結果、4.3%の光電変換効率が得ることができた。
実施例5と同様に、但し、ピロリン系色素P3に代えてピロリン系色素P4を用いて光電変換素子を作製した。得られた素子の光電変換特性を評価した結果、3.8%の光電変換効率を得ることができた。
Claims (8)
- 前記酸性基が、カルボキシ基、ヒドロキシ基、スルホン酸基、または、ホスホン酸基であることを特徴とする請求項1に記載の光電変換用色素。
- 前記電子供与性置換基を含む有機基が、電子供与性置換基を含むアリール基であることを特徴とする請求項1に記載の光電変換用色素。
- 請求項1から3のいずれかに記載の光電変換用色素を少なくとも1種以上吸着させた半導体層を有する半導体電極。
- 前記半導体層が、酸化チタンまたは酸化亜鉛を含む半導体材料により構成されることを特徴とする請求項4に記載の半導体電極。
- 請求項4または5に記載の半導体電極を用いることを特徴とする光電変換素子。
- 請求項6に記載の光電変換素子を含むことを特徴とする太陽電池。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011548867A JPWO2011083527A1 (ja) | 2010-01-07 | 2010-11-18 | 光電変換用色素、半導体電極、光電変換素子、太陽電池、および、新規ピロリン系化合物 |
US13/520,928 US20130118570A1 (en) | 2010-01-07 | 2010-11-18 | Dye for photoelectric conversion, semiconductor electrode, photoelectric conversion element, solar cell, and novel pyrroline-based compound |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010002241 | 2010-01-07 | ||
JP2010-002241 | 2010-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011083527A1 true WO2011083527A1 (ja) | 2011-07-14 |
Family
ID=44305274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/006773 WO2011083527A1 (ja) | 2010-01-07 | 2010-11-18 | 光電変換用色素、半導体電極、光電変換素子、太陽電池、および、新規ピロリン系化合物 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20130118570A1 (ja) |
JP (1) | JPWO2011083527A1 (ja) |
WO (1) | WO2011083527A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140345678A1 (en) * | 2011-12-22 | 2014-11-27 | Sharp Kabushiki Kaisha | Photoelectric conversion element |
JP2014236045A (ja) * | 2013-05-31 | 2014-12-15 | 積水化学工業株式会社 | 有機薄膜太陽電池 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0572670A (ja) * | 1991-02-18 | 1993-03-26 | Fuji Photo Film Co Ltd | ハロゲン化銀写真感光材料 |
JPH09255883A (ja) * | 1996-03-26 | 1997-09-30 | Fuji Photo Film Co Ltd | 新規メロシアニン染料およびそれの製造方法 |
JP2007246885A (ja) * | 2006-02-20 | 2007-09-27 | Toyo Ink Mfg Co Ltd | 光機能材料 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2803640A (en) * | 1954-11-12 | 1957-08-20 | Du Pont | Alpha-cyanovinyl-substituted aryl amines and their preparation |
CH674596A5 (ja) * | 1988-02-12 | 1990-06-15 | Sulzer Ag | |
US5670091A (en) * | 1993-08-05 | 1997-09-23 | California Institute Of Technology | Nonlinear optical materials with reduced aromaticity and bond length alternation |
DE69819712T2 (de) * | 1997-05-07 | 2004-09-23 | Ecole polytechnique fédérale de Lausanne (EPFL) | Fotoempfindlicher metallkomplex und fotovoltaische zelle |
JPH11144773A (ja) * | 1997-09-05 | 1999-05-28 | Fuji Photo Film Co Ltd | 光電変換素子および光再生型光電気化学電池 |
DE19822199C2 (de) * | 1998-05-16 | 2003-02-13 | Wella Ag | Mono- oder Polymethinfarbstoffe enthaltende nicht-oxidative Haarfärbemittel und Verfahren zur temporären Haarfärbung |
US6335481B1 (en) * | 1998-09-30 | 2002-01-01 | Fuji Photo Film Co., Ltd. | Semiconductor particle sensitized with methine dye |
US6291763B1 (en) * | 1999-04-06 | 2001-09-18 | Fuji Photo Film Co., Ltd. | Photoelectric conversion device and photo cell |
ATE324662T1 (de) * | 1999-08-04 | 2006-05-15 | Fuji Photo Film Co Ltd | Elektrolytzusammensetzung und photolektrochemische zelle |
WO2002011213A1 (fr) * | 2000-07-27 | 2002-02-07 | Nippon Kayaku Kabushiki Kaisha | Transducteur photoélectrique sensibilisé par un colorant |
JP5142307B2 (ja) * | 2000-11-28 | 2013-02-13 | 独立行政法人産業技術総合研究所 | 有機色素を光増感剤とする半導体薄膜電極、光電変換素子 |
US6677516B2 (en) * | 2001-01-29 | 2004-01-13 | Sharp Kabushiki Kaisha | Photovoltaic cell and process for producing the same |
TW541330B (en) * | 2001-03-07 | 2003-07-11 | Nippon Kayaku Kk | Photo-electric conversion device and oxide semiconductor fine particle |
CN1524315B (zh) * | 2001-07-06 | 2013-02-13 | 日本化药株式会社 | 染料敏化的光电转换器件 |
EP2009064B1 (en) * | 2002-07-29 | 2012-10-24 | Mitsubishi Paper Mills Limited | Organic dye, photoelectric transducing material, semiconductor electrode, and photoelectric transducing device |
EP1628356B1 (en) * | 2003-03-14 | 2012-08-15 | Nippon Kayaku Kabushiki Kaisha | Dye-sensitized photoelectric conversion device |
WO2005077956A1 (ja) * | 2004-02-16 | 2005-08-25 | Ihara Chemical Industry Co., Ltd. | 置換Sym−トリインドール |
JP4963343B2 (ja) * | 2004-09-08 | 2012-06-27 | 日本化薬株式会社 | 色素増感光電変換素子 |
KR101249727B1 (ko) * | 2005-05-24 | 2013-04-03 | 니폰 가야꾸 가부시끼가이샤 | 색소증감 광전변환소자 |
CA2610759A1 (en) * | 2005-06-14 | 2006-12-21 | Nippon Kayaku Kabushiki Kaisha | Dye-sensitized photoelectric conversion device |
AU2007221706B2 (en) * | 2006-03-02 | 2011-12-22 | Nippon Kayaku Kabushiki Kaisha | Dye-sensitized photoelectric conversion device |
JP5135774B2 (ja) * | 2006-11-20 | 2013-02-06 | コニカミノルタビジネステクノロジーズ株式会社 | 光電変換素子、及び太陽電池 |
US8039741B2 (en) * | 2006-12-08 | 2011-10-18 | Konica Minolta Business Technologies, Inc. | Photoelectric conversion element and solar cell |
JP2008186752A (ja) * | 2007-01-31 | 2008-08-14 | Konica Minolta Business Technologies Inc | 光電変換素子及び太陽電池 |
-
2010
- 2010-11-18 WO PCT/JP2010/006773 patent/WO2011083527A1/ja active Application Filing
- 2010-11-18 JP JP2011548867A patent/JPWO2011083527A1/ja active Pending
- 2010-11-18 US US13/520,928 patent/US20130118570A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0572670A (ja) * | 1991-02-18 | 1993-03-26 | Fuji Photo Film Co Ltd | ハロゲン化銀写真感光材料 |
JPH09255883A (ja) * | 1996-03-26 | 1997-09-30 | Fuji Photo Film Co Ltd | 新規メロシアニン染料およびそれの製造方法 |
JP2007246885A (ja) * | 2006-02-20 | 2007-09-27 | Toyo Ink Mfg Co Ltd | 光機能材料 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140345678A1 (en) * | 2011-12-22 | 2014-11-27 | Sharp Kabushiki Kaisha | Photoelectric conversion element |
US9330853B2 (en) * | 2011-12-22 | 2016-05-03 | Sharp Kabushiki Kaisha | Photoelectric conversion element |
JP2014236045A (ja) * | 2013-05-31 | 2014-12-15 | 積水化学工業株式会社 | 有機薄膜太陽電池 |
Also Published As
Publication number | Publication date |
---|---|
US20130118570A1 (en) | 2013-05-16 |
JPWO2011083527A1 (ja) | 2013-05-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5620316B2 (ja) | 光電変換素子、光電気化学電池及び色素 | |
JP2012144688A (ja) | 光電変換素子、光電気化学電池、光電変換素子用色素及び光電変換素子用色素溶液 | |
WO2013121835A1 (ja) | スピロビフルオレン誘導体、光電変換素子用色素、これを用いた半導体電極、光電変換素子および光電気化学電池 | |
JP5681716B2 (ja) | 金属錯体色素、光電変換素子及び光電気化学電池 | |
JP5869481B2 (ja) | 金属錯体色素、光電変換素子及び光電気化学電池 | |
JP5689351B2 (ja) | 光電変換素子及び光電気化学電池 | |
JP2003059547A (ja) | 色素増感光電変換素子 | |
WO2013042699A1 (ja) | スピロビフルオレン系化合物、光電変換素子用色素、これを用いた光電変換素子 | |
JP5620496B2 (ja) | 金属錯体色素、光電変換素子及び光電気化学電池 | |
WO2012063753A1 (ja) | インドール系化合物、並びにこれを用いた光電変換用色素、半導体電極、光電変換素子および光電気化学電池 | |
WO2013042414A1 (ja) | ジチエノピロール系化合物、光電変換素子用色素、これを用いた光電変換素子用半導体電極、および光電変換素子 | |
WO2012111610A1 (ja) | チアゾール系化合物及びその用途 | |
WO2011083527A1 (ja) | 光電変換用色素、半導体電極、光電変換素子、太陽電池、および、新規ピロリン系化合物 | |
JP2002367426A (ja) | 電解質組成物、光電変換素子及び光電気化学電池 | |
JP2012051952A (ja) | 色素、光電変換素子及び光電気化学電池 | |
JP5235952B2 (ja) | ツイッターイオン型有機塩 | |
WO2012017873A1 (ja) | 金属錯体色素、光電変換素子及び光電気化学電池 | |
JP4520727B2 (ja) | ピロリジニウム塩、電解質組成物、光電変換素子及び光化学電池 | |
JP2007048672A (ja) | 光電変換材料、半導体電極並びにそれを用いた光電変換素子 | |
WO2011145321A1 (ja) | マレイミド系化合物及びその互変異性体若しくは立体異性体、光電変換用色素、これを用いた半導体電極、光電変換素子および光電気化学電池 | |
WO2012096134A1 (ja) | アルキン誘導体およびその用途 | |
JP2008019224A (ja) | 置換アクリル酸系化合物、及び光電変換素子の半導体電極形成用増感色素 | |
TW201605845A (zh) | 光電轉換元件、色素增感太陽電池、釕錯合物色素、色素溶液以及聯吡啶化合物 | |
JP5587070B2 (ja) | 第四級アンモニウム塩、並びにこれを用いた電解質組成物、光電変換素子及び光化学電池 | |
WO2011108613A1 (ja) | 光電変換素子及び光電気化学電池 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10842047 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011548867 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13520928 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 10842047 Country of ref document: EP Kind code of ref document: A1 |