Abstract: The present application discloses a back contact solar cell, a method for manufacturing the same, and a photovoltaic module. An example back contact solar cell includes a semiconductor substrate, a first doped region, a second doped region, and at least one conductive semiconductor structure. Each conductive semiconductor structure includes a first conductive semiconductor portion and a second conductive semiconductor portion. The first conductive semiconductor portion is located in a spacer region between the first doped region and the second doped region. A part of the first doped region and a part of the second doped region are electrically connected to the first conductive semiconductor portion. The second conductive semiconductor portion is disposed above a part of the first doped region and/or the second doped region that faces away from the semiconductor substrate.

Abstract: The present application discloses a back contact solar cell and a photovoltaic module. An example back contact solar cell includes a semiconductor substrate, a first doped semiconductor layer, a second doped semiconductor layer, and a dielectric layer. The first doped semiconductor layer is disposed on a first region and a third region. The second doped semiconductor layer is disposed on a second region and the third region. A doping type of the first doped semiconductor layer is opposite to that of the second doped semiconductor layer. On the third region, the first doped semiconductor layer and the second doped semiconductor layer overlap in a thickness direction of the semiconductor substrate to form a stacked structure. The dielectric layer is disposed at least between the first doped semiconductor layer and the second doped semiconductor layer. A leakage path is disposed in the dielectric layer.

Abstract: A communication resource determining method and apparatus are provided, so that a resource for communicating a physical downlink control channel between an access network device and a terminal device is adapted to a cell load when the cell load changes. The method in this application may include the access network device determining first indication information based on load information of a cell, and sending the first indication information to the terminal device. The terminal device determines, based on the first indication information and first information, a first resource used by the terminal device to detect the physical downlink control channel. The first information includes a plurality of pieces of resource information. The first indication information corresponds to first resource information in the plurality of pieces of resource information, and the first resource information indicates the first resource.

Abstract: The present application relates to a silicon solar cell, including: a silicon substrate, where the silicon substrate includes an antimony element; and a carrier separation layer, formed on the silicon substrate. At least some regions of the carrier separation layer on a side close to the silicon substrate have an antimony-containing layer. The antimony-containing layer includes the antimony element. A peak concentration of the antimony element in the antimony-containing layer is a1, and a1 is equal to or greater than 8E15 atoms/cm3.

Abstract: The present disclosure provides a solar cell and a method for manufacturing a solar cell. An example solar cell includes: a semiconductor substrate, first conductive contact layers bus electrodes, and collector electrodes. The first conductive contact layers are formed on at least one surface of the semiconductor substrate, extend in a first direction, and are spaced apart in a second direction. The bus electrodes are formed over the first conductive contact layers, and located on at least one surface of the semiconductor substrate. The bus electrodes extend in the first direction and are spaced apart in the second direction. A projection of at least one of the first conductive contact layers on the semiconductor substrate overlaps with a projection of the bus electrodes on the semiconductor substrate.

Abstract: The present application discloses a solar cell and a photovoltaic module. The solar cell includes a cell body, where a width of the cell body is L1 along a first direction; and a patterned region on a surface of the cell body. The patterned region has a plurality of fingers extending along a second direction, the plurality of fingers comprise first fingers and second fingers spaced from the plurality of first fingers along the first direction. The cell body has a first side and a second side opposite to the first side, each of the first side and the second side extending along the second direction. A distance between the first side and a position of the patterned region closest to the first side is D1. When the first fingers and the second fingers have opposite polarities, 80?L1/D1?400. When the first fingers and the second fingers have a same polarity, 50?L1/D1?350.

Abstract: A communication method and system are provided. The system includes at least one first terminal, at least one second terminal, and an access network device. The first terminal is configured to send first information to the access network device, where the first information indicates a channel matrix sequence corresponding to the first terminal, and this sequence includes M+N channel matrices arranged in chronological order. The second terminal is configured to send channel state information CSI to the access network device. The access network device is configured to determine, based on the channel matrix sequence corresponding to the first terminal and the CSI, a channel matrix sequence corresponding to the second terminal, and to send data to the second terminal based on the channel matrix sequence corresponding to the second terminal.

Abstract: The present application discloses a solar cell, a solar cell stack structure, and a photovoltaic module. In an implementation, a solar cell includes: a solar cell body, where the solar cell body has a light receiving surface and a back surface, the back surface is provided with an electrode, and at least one of the light receiving surface or the back surface is provided with an isolation member.

Abstract: The present application discloses implementations relating to a solar cell and a solar module. In an implementation, a solar cell includes busbars and collector electrodes formed on a solar cell body. A plurality of pads are arranged on the busbars at intervals in a first direction. In a direction from a preset point on the busbar to any one of the pads adjacent to the preset point on the busbar, a width of the busbar increases. The preset point is any point between any two adjacent pads on the busbar on which the preset point is located, and a width direction of the busbar is consistent with a second direction.

Abstract: The present disclosure discloses a back-contacted solar cell and a manufacturing method therefor, and a photovoltaic module. In an implementation, a back-contacted solar cell includes: a semiconductor substrate, where the semiconductor substrate has a first surface and a second surface that are opposite to each other, and the first surface has a textured structure; and a tunneling passivation layer and an N-type doped polycrystalline silicon layer that are sequentially stacked on a local region of the second surface in a thickness direction of the semiconductor substrate, where a ratio of a thickness of the N-type doped polycrystalline silicon layer located on an edge region of the second surface to a thickness of the N-type doped polycrystalline silicon layer that is located on a central region of the second surface is greater than or equal to 1 and less than or equal to 1.2.

Abstract: This application provides a seat and a vehicle. The seat includes an upholstery layer, a foamed layer, and a framework support layer. The foamed layer is located between the upholstery layer and the framework support layer. The upholstery layer includes a first layer and a second layer, where the first layer is a leather material, a polyurethane material, a polyvinyl chloride material, or a braided material, and the second layer is a composite layer of ventilation sponges. The foamed layer includes a third layer and a fourth layer, where the third layer is a high-elasticity sponge and the fourth layer is supportive foam. According to embodiments of this application, driving and ride experience of a user can be improved.

Abstract: A back contact solar cell and a photovoltaic module are provided. In one example, a back contact solar cell includes a solar cell body, a conductive contact layer, and positive electrodes and negative electrodes on the conductive contact layer. The positive electrodes include first collector electrodes and first bus electrodes. The negative electrodes include second collector electrodes and second bus electrodes. The conductive contact layer includes first conductive contact layers extend in a first direction and are spaced apart in a second direction, and second conductive contact layers extend in the second direction and are spaced apart in the first direction. A projection of the first and second collector electrodes at least partially overlaps with a projection of the first conductive contact layers. A projection of the first and second bus electrodes at least partially overlaps with a projection of the second conductive contact layers.

Abstract: The present application relates to a silicon solar cell. In one example, a silicon solar cell includes a silicon substrate including an antimony element; and a carrier separation layer, formed on the silicon substrate. At least some regions of the carrier separation layer on a side close to the silicon substrate have an antimony-containing layer. The antimony-containing layer includes the antimony element. A peak concentration of the antimony element in the antimony-containing layer is a1, and a1 is equal to or greater than 1E13 atoms/cm3.

Abstract: This disclosure provides a back contact solar cell and a method for manufacturing a back contact solar cell. In one example, a back contact solar cell includes a silicon substrate having a back surface comprising first regions and second regions that are alternately distributed, a first doped semiconductor layer formed on a first region of the back surface, a groove structure formed on a second region of the back surface, wherein an end portion of the first doped semiconductor layer adjacent to the second region extends to be suspended over the groove structure, and a second doped semiconductor layer formed on a portion of the groove structure, wherein a surface portion of the second doped semiconductor layer does not extend to be suspended over a remaining portion of the groove structure the second doped semiconductor layer is not formed on.

Abstract: The present application relates to the field of photovoltaic technologies and provides a solar cell and a photovoltaic module. The solar cell includes: a silicon substrate, where the silicon substrate includes a first surface and a second surface that are opposite to each other; an N-type doped layer, formed on at least some regions of the first surface of the silicon substrate, where a sheet resistance of the N-type doped layer is 14 ohms/square to 40 ohms/square; and a plurality of N-type fingers distributed at intervals and in parallel, formed on a side of the N-type doped layer facing away from the silicon substrate, where a distance between adjacent N-type fingers is less than 1.391 mm.

Abstract: A method and a communication apparatus for sending system information are disclosed. According to the method: A network device determines, based on a transmission repetition period of RMSI, a first sending period and a time domain resource corresponding to the first sending period, and sends the RMSI to a terminal device based on the first sending period and the time domain resource corresponding to the first sending period. The transmission repetition period is a transmission repetition period for transmission of the RMSI by using each of a plurality of beams. The time domain resource corresponding to the first sending period includes: a time domain resource that is in a time domain resource corresponding to the transmission repetition period and that is used for transmitting a first beam group of the plurality of beams and not for transmitting any beam other than the first beam group of the plurality of beams.

Abstract: The present application discloses a back contact solar cell and a photovoltaic module. An example back contact solar cell includes a semiconductor substrate, a first doped semiconductor layer, a second doped semiconductor layer, and a dielectric layer. The first doped semiconductor layer is disposed on a first region and a third region. The second doped semiconductor layer is disposed on a second region and the third region. A doping type of the first doped semiconductor layer is opposite to that of the second doped semiconductor layer. On the third region, the first doped semiconductor layer and the second doped semiconductor layer overlap in a thickness direction of the semiconductor substrate to form a stacked structure. The dielectric layer is disposed at least between the first doped semiconductor layer and the second doped semiconductor layer. A leakage path is disposed in the dielectric layer.

Abstract: The present application relates to a silicon solar cell. In one example, a silicon solar cell includes a silicon substrate including an antimony element; and a carrier separation layer, formed on the silicon substrate. At least some regions of the carrier separation layer on a side close to the silicon substrate have an antimony-containing layer. The antimony-containing layer includes the antimony element. A peak concentration of the antimony element in the antimony-containing layer is a1, and a1 is equal to or greater than 1E13 atoms/cm3.

Abstract: The present application discloses a back contact solar cell, a method for manufacturing the same, and a photovoltaic module. An example back contact solar cell includes a semiconductor substrate, a first doped region, a second doped region, and at least one conductive semiconductor structure. Each conductive semiconductor structure includes a first conductive semiconductor portion and a second conductive semiconductor portion. The first conductive semiconductor portion is located in a spacer region between the first doped region and the second doped region. A part of the first doped region and a part of the second doped region are electrically connected to the first conductive semiconductor portion. The second conductive semiconductor portion is disposed above a part of the first doped region and/or the second doped region that faces away from the semiconductor substrate.

Abstract: This disclosure provides a back contact solar cell and a method for manufacturing a back contact solar cell. In one example, a back contact solar cell includes a silicon substrate having first regions and second regions alternately distributed on a back surface of the silicon substrate, and a first doped semiconductor layer formed on a first region on the back surface of the silicon substrate. A groove structure concaving inward the silicon substrate relative to a surface of the first region is formed on a second region. An end portion of the first doped semiconductor layer adjacent to the second region is arranged in a suspended manner.