Abstract: According to one embodiment, there is provided a multielement composite oxide powder that includes an oxide particle including a composite oxide, the composite oxide containing: constituent metal elements containing two or more hexavalent metal elements and two or more pentavalent metal elements at a content of 80 atm % or more in total; and oxygen. The oxide particle has a major axis and a minor axis intersecting the major axis, and has a polygonal tunnel structure including one or more polygonal tunnels of five or more vertices in a major axis direction along the major axis.

Abstract: A light-emitting element includes: a first electrode; a second electrode disposed opposite the first electrode; a light-emitting layer disposed between the first electrode and the second electrode and containing quantum dots; and a carrier transport layer disposed between the first electrode and a surface of the light-emitting layer on a second electrode side, including a plurality of protrusions extending toward the second electrode side, and containing a carrier transport material, wherein at least parts of the plurality of protrusions of the carrier transport layer and at least parts of a plurality of gaps between the plurality of protrusions are covered by the quantum dots.

Abstract: In a sensor used in an energy harvesting system, electric power generated by a solar cell module is more efficiently utilized. In a sensor (100), a resistor (3) is connected in parallel with one of a first solar cell module (1a) and a second solar cell module (1b) that have mutually different current-voltage characteristics in the same illuminance environment and in series with the other one of the first solar cell module (1a) and the second solar cell module (1b). A first voltmeter (4a) measures a voltage (V1) across the first solar cell module (1a), and a second voltmeter (4b) measures a voltage (V2) across the second solar cell module (1b). A load (6) is fed with the electric power generated by the first solar cell module (1a) and the second solar cell module (1b).

Abstract: A solar battery unit (100) is provided that includes: a substrate (120); a solar battery (110) attached to a back face of the substrate (120); and a communications module (130) attached to the substrate (120). The communications module (130) includes an antenna (132) disposed so as not to overlap solar cells (115) in the solar battery (110) in a front view.

Abstract: A dye-sensitized solar cell (100) includes: a first electrode containing first metal oxide particles and including a porous semiconductor layer (16A) carrying dye; a second electrode acting as a counter electrode of the first electrode; and a porous insulating layer (36A) provided between the first electrode and the second electrode, the porous insulating layer (36A)(i) holding an electrolytic solution (42) containing a redox couple and a pyrazole-based compound, and (ii) containing second metal oxide particles.

Abstract: The present disclosure provides technology of setting the reception period of a repeater or the transmission period of a transmitter. The present disclosure provides a method of setting the reception period of a repeater 100 including a battery 120 and configured to receive radio waves transmitted by at least one transmitter 200, the method including setting the reception period of the repeater 100 based on a power consumption Pk (Wh) of the at least one transmitter 200 and a power consumption Pc (Wh) of the repeater 100.

Abstract: A solar battery unit (100) is provided that includes: a substrate (120); a sola battery (110) attached to a back face of the substrate (120); and a communications module (130) attached to the substrate (120). The communications module (130) includes an antenna (132) disposed so as not to overlap solar cells (115) in the solar battery (110) in a front view.

Abstract: A chair includes: a backrest having an opening or recess in a portion thereof; and a solar panel disposed on a face inside the opening or recess.

Abstract: The dye-sensitized solar cell comprises a first electrode including a porous semiconductor layer supporting a dye; and a second electrode serving as a counter electrode of the first electrode. The second electrode includes a counter electrode conductive layer containing an absorbent supporting a dye that is the same as or different from the dye supported by the porous semiconductor layer.

Abstract: The dye-sensitized solar cell comprises a first electrode including a porous semiconductor layer supporting a dye; and a second electrode serving as a counter electrode of the first electrode. The second electrode includes a counter electrode conductive layer containing an absorbent supporting a dye that is the same as or different from the dye supported by the porous semiconductor layer.

Abstract: The dye-sensitized solar cell comprises a first electrode including a porous semiconductor layer supporting a dye, a second electrode serving as the counter electrode of the first electrode, and an electrolytic solution filled between the first electrode and the second electrode. The second electrode includes a counter electrode conductive layer containing carbon microparticles and supporting a dye that is the same as that supported by the porous semiconductor layer.

Abstract: A chair includes: a backrest having an opening or recess in a portion thereof; and a solar panel disposed on a face inside the opening or recess.

Abstract: An information processing system using a mobile terminal device includes: a plurality of transmission devices that are distributed over a predetermined region and that transmit mutually different identification information; a receiver, provided in the mobile terminal device, that receives the identification information; an information storage memory that stores device information including, for each of the plurality of transmission devices, the identification information and position information of the transmission device; an input device, provided in the mobile terminal device, that accepts an input of event information related to a subject; an acquisition circuitry that, based on the identification information received by the receive and the position information, acquires the position information of the mobile terminal device at the point in time when the input of the event information was accepted; and an output device that outputs event history information about the subject that includes the event informa

Abstract: A dye-sensitized solar cell includes: a first light-transmitting substrate and a second substrate; an electrolytic solution; a transparent conductive layer; a porous semiconductor layer; a photosensitizer supported on the porous semiconductor layer; a first sealing member that forms a space between the first light-transmitting substrate and the second substrate, the space being filled with the electrolytic solution, the space including an injection hole that has an opening for injecting the electrolytic solution; and a second sealing member that seals the injection hole to thereby hermetically seal the space. In a cross section parallel to a principal surface of the first light-transmitting substrate and including the injection hole, a distance H is larger than a width h of the opening of the injection hole, where the distance H is the distance between two contact points at which the first sealing member, the second sealing member, and the electrolytic solution are in contact with each other.

Abstract: The dye-sensitized solar cell comprises a first electrode including a porous semiconductor layer supporting a dye, a second electrode serving as the counter electrode of the first electrode, and an electrolytic solution filled between the first electrode and the second electrode. The second electrode includes a counter electrode conductive layer containing carbon microparticles and supporting a dye that is the same as that supported by the porous semiconductor layer.