Abstract: A Pb-free Sn-halide Perovskite solar cell with improved photoelectric conversion efficiency is provided. A solar cell uses a perovskite compound represented by ABX3 where A is a cation, B is a metal, and X is a halogen, wherein each of A, B and X may be composed of a plurality of elements, and B includes Sn and Ge.

Abstract: A perovskite photoelectric conversion element includes a light transmitting substrate 11, on a front surface of which light is made incident, an oxide porous layer 13, formed on a rear surface of the light transmitting substrate 11 and with metal oxide particles 12 connected in a network, a metal porous layer 15, formed on a rear surface of the oxide porous layer 13 and with metal particles 14 connected in a network, a porous insulating layer 17, formed on a rear surface of the metal porous layer 15, a first electrode layer 18, formed on and across an entirety of a rear surface of the porous insulating layer 17, a second electrode layer 19, connected to the metal porous layer 15 and formed at a portion different from the first electrode layer 18 in a state of being insulated from the first electrode layer 18, and perovskite 20.

Abstract: A perovskite photoelectric conversion element includes a light transmitting substrate 11, on a front surface of which light is made incident, an oxide porous layer 13, formed on a rear surface of the light transmitting substrate 11 and with metal oxide particles 12 connected in a network, a metal porous layer 15, formed on a rear surface of the oxide porous layer 13 and with metal particles 14 connected in a network, a porous insulating layer 17, formed on a rear surface of the metal porous layer 15, a first electrode layer 18, formed on and across an entirety of a rear surface of the porous insulating layer 17, a second electrode layer 19, connected to the metal porous layer 15 and formed at a portion different from the first electrode layer 18 in a state of being insulated from the first electrode layer 18, and perovskite 20.

Abstract: According to one embodiment, an electrode material for a battery includes a tungsten oxide powder or a tungsten oxide composite powder provided with a coating unit containing at least one selected from a metal oxide, silicon oxide, a metal nitride, and silicon nitride.

Abstract: In an apparatus for manufacturing a dye-sensitized solar cell, a photosensitization dye solution makes contact with an electrode material layer that functions as a working electrode of a dye-sensitized solar cell so that the photosensitizing dye is adsorbed on the layer. Such an apparatus for manufacturing a dye-sensitized solar cell has a substrate housing section to house a substrate with the electrode material layer formed on its surface, and a circulation mechanism to circulate the photosensitization dye solution in such a way that the solution passes a surface of the substrate housed in the substrate housing section. In such an apparatus, a cross-sectional area of a flow path for the photosensitization dye solution in a portion facing the substrate in the substrate housing section is set smaller than a cross-sectional area of a flow path for the photosensitization dye solution in other portions.

Abstract: Provided is a dye-sensitized solar cell, and a method for manufacturing the same, that in a technology in which a current collector electrode is used instead of a transparent conductive film, can be manufactured by a simple cell producing operation and is capable of achieving a desirably thin thickness for the current collector electrode. A dye-sensitized solar cell 10 includes a transparent substrate 12 provided on the side where solar light is incident, a conductive substrate 14 that serves as a cathode and is provided opposite the transparent substrate 12, a porous semiconductor layer 16, a porous conductive metal layer 18 that serves as a current collector electrode, and a porous insulating layer 20. The porous conductive metal layer 18 is a layer that has a thickness of 0.3 ?m to 100 ?m and is deposited on the porous insulating layer 20.

Abstract: To provide a dye-sensitized solar cell with suppressed photoelectric conversion efficiency deterioration due to a gap to be possibly be generated between a transparent member on which a light is incident and the dye-sensitized solar cell components. A dye-sensitized solar cell 10 is provided with a dye-sensitized solar cell components unit 14 arranged within a cylindrical transparent member 12, the unit having an electrolyte layer, current collecting electrode 18, and porous semiconductor layer 20 carrying dye cylindrically laminated in this order centering around a cathode electrode layer 16. The cathode electrode layer 16 is a spring body, and the dye-sensitized solar cell components unit 14 is pressed to the transparent member 12 with an elastic restoring force of the spring.

Abstract: A dye-sensitized solar cell is provided, wherein it can be produced by a relatively easy and simple process and ensures high conversion efficiency even in cases where the thickness of the porous semiconductor layer is increased. The dye-sensitized solar cell 10 includes, in the interior of or on the conductive-substrate-side surface of the porous semiconductor layer 16, conductive metal film 20, such as a film of tungsten, having a large number of randomly located penetrations 24. Penetrations 24 of the conductive metal film 20 are formed by forming a fine-particle layer on the surface of the porous semiconductor layer, forming a conductive metal film on the surface of the fine-particle layer, and making the fine-particle layer disappear by heating or solvent-cleaning.

Abstract: A dye-sensitized solar cell is provided, wherein it can be produced by a relatively easy and simple process and ensures high conversion efficiency even in cases where the thickness of the porous semiconductor layer is increased. The dye-sensitized solar cell 10 includes, in the interior of or on the conductive-substrate-side surface of the porous semiconductor layer 16, conductive metal film 20, such as a film of tungsten, having a large number of randomly located penetrations 24. Penetrations 24 of the conductive metal film 20 are formed by forming a fine-particle layer on the surface of the porous semiconductor layer, forming a conductive metal film on the surface of the fine-particle layer, and making the fine-particle layer disappear by heating or solvent-cleaning.

Abstract: A dye-sensitized solar cell is provided, wherein it can be produced by a relatively easy and simple process and ensures high conversion efficiency even in cases where the thickness of the porous semiconductor layer is increased. The dye-sensitized solar cell 10 includes, in the interior of or on the conductive-substrate-side surface of the porous semiconductor layer 16, conductive metal film 20, such as a film of tungsten, having a large number of randomly located penetrations 24. Penetrations 24 of the conductive metal film 20 are formed by forming a fine-particle layer on the surface of the porous semiconductor layer, forming a conductive metal film on the surface of the fine-particle layer, and making the fine-particle layer disappear by heating or solvent-cleaning.

Abstract: An organic thin-film transistor comprising a gate electrode, a gate insulator layer, an organic semiconductor layer, a source electrode and a drain electrode wherein the organic semiconductor layer consists of the organic semiconductor material having the structure represented by the general formula (1) shown below, and the organic semiconductor layer has crystallinity: wherein L represents a bivalent linker group having the structure consisting of one group or any combination of two or more groups selected from unsubstituted or fluorinated benzene residue, unsubstituted or fluorinated thiophene residue, unsubstituted or fluorinated thienothophene residue; R1 represents carbonyl group, cyano group or C1-C6 fluorinated alkyl group; R2 represents halogen atom, cyano group, carbonyl group or acetyl group.

Abstract: Provided are a squarylium dye having a carboxyindolenine structure and an N-alkyl substituent, and a photoelectric conversion element having high photoelectric conversion efficiency in a near-infrared region and a dye-sensitized solar cell, both of which are produced using the squarylium dye. The photoelectric conversion element or dye-sensitized solar cell uses a compound represented by the formula (1) as the squarylium dye. In the formula (1), R1 and R2 represent a substituted or unsubstituted C5 to C30 alkyl group; X represents C(CH3)2; and A and B represent a carboxy group.

Abstract: According to one embodiment, an electrode material for a battery includes a tungsten oxide powder or a tungsten oxide composite powder provided with a coating unit containing at least one selected from a metal oxide, silicon oxide, a metal nitride, and silicon nitride.

Abstract: There is provided a tandem-type dye-sensitized solar cell having a novel structure whereby optical absorption efficiency is improved and which can be manufactured at low cost. A dye-sensitized solar cell 10 comprises an anode substrate 12, a first dye-carrying porous oxide semiconductor layer 14, an electrolytic solution layer 16a, a porous support layer 18, a second dye-carrying porous oxide semiconductor layer 20, an electrolytic solution layer 16b, and a cathode substrate 22, arranged in order from an optical incidence side. The porous support layer 18 supports an iodine redox catalyst layer 19. Electrons derived by a conductor from a conductor layer 12b are introduced to the cathode substrate 22, thereby configuring, for example, a battery circuit for lighting purposes.

Abstract: In an apparatus for manufacturing a dye-sensitized solar cell, a photosensitization dye solution makes contact with an electrode material layer that functions as a working electrode of a dye-sensitized solar cell so that the photosensitizing dye is adsorbed on the layer. Such an apparatus for manufacturing a dye-sensitized solar cell has a substrate housing section to house a substrate with the electrode material layer formed on its surface, and a circulation mechanism to circulate the photosensitization dye solution in such a way that the solution passes a surface of the substrate housed in the substrate housing section. In such an apparatus, a cross-sectional area of a flow path for the photosensitization dye solution in a portion facing the substrate in the substrate housing section is set smaller than a cross-sectional area of a flow path for the photosensitization dye solution in other portions.

Abstract: Provided is a dye-sensitized solar cell, and a method for manufacturing the same, that in a technology in which a current collector electrode is used instead of a transparent conductive film, can be manufactured by a simple cell producing operation and is capable of achieving a desirably thin thickness for the current collector electrode. A dye-sensitized solar cell 10 includes a transparent substrate 12 provided on the side where solar light is incident, a conductive substrate 14 that serves as a cathode and is provided opposite the transparent substrate 12, a porous semiconductor layer 16, a porous conductive metal layer 18 that serves as a current collector electrode, and a porous insulating layer 20. The porous conductive metal layer 18 is a layer that has a thickness of 0.3 ?m to 100 ?m and is deposited on the porous insulating layer 20.

Abstract: A dye-sensitized solar cell is provided, wherein it can be produced by a relatively easy and simple process and ensures high conversion efficiency even in cases where the thickness of the porous semiconductor layer is increased. The dye-sensitized solar cell 10 includes, in the interior of or on the conductive-substrate-side surface of the porous semiconductor layer 16, conductive metal film 20, such as a film of tungsten, having a large number of randomly located penetrations 24. Penetrations 24 of the conductive metal film 20 are formed by forming a fine-particle layer on the surface of the porous semiconductor layer, forming a conductive metal film on the surface of the fine-particle layer, and making the fine-particle layer disappear by heating or solvent-cleaning.

Abstract: To provide a tandem dye-sensitized solar cell having a novel structure capable of improving the light absorption efficiency and being manufactured less expensively. A dye-sensitized solar cell 10 is configured by including, in order from the light incident side, an anode substrate 12, a first dye-carrying porous oxide semiconductor layer 14, a first electrolyte layer 16a, an electrolyte redox catalyst layer 18, a second dye-carrying porous oxide semiconductor layer 20, a porous support layer 19, a second electrolyte layer 16b, and a cathode substrate 22. The electrons extracted from a conductor layer 12b by a conductor are introduced into the cathode substrate 22, so that a battery circuit, for example, for a lighting power source is configured.

Abstract: Provided are a squarylium dye having a carboxyindolenine structure and an N-alkyl substituent, and a photoelectric conversion element having high photoelectric conversion efficiency in a near-infrared region and a dye-sensitized solar cell, both of which are produced using the squarylium dye. The photoelectric conversion element or dye-sensitized solar cell uses a compound represented by the formula (1) as the squarylium dye. In the formula (1), R1 and R2 represent a substituted or unsubstituted C5 to C30 alkyl group; X represents C(CH3)2; and A and B represent a carboxy group.

Abstract: A method for adsorption of a photosensitizing dye includes adsorbing the photosensitizing dye to the layer of an electrode material that functions as the working electrode of a dye-sensitized solar cell, within a reaction vessel containing a solution of the photosensitizing dye, wherein a flow of the photosensitizing dye solution is generated by means of a flow generation part in a direction perpendicular to the electrode material layer, a direction parallel thereto or both, and the flow rate of the photosensitizing dye solution to the electrode material layer is higher than the diffusion velocity of the photosensitizing dye.