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 discloses a back contact solar cell, a preparation method therefor, and a photovoltaic module. In one example, a back contact solar cell includes a substrate, a first doped layer and a second doped layer alternately arranged on a first surface of the substrate. A doping type of the first doped layer is opposite to a doping type of the second doped layer. A first isolation region is provided between an edge of the substrate and a boundary of the first doped layer adjacent to the edge, a second isolation region is provided between the edge of the substrate and a boundary of the second doped layer adjacent to the edge. A width of at least a portion of the first isolation region is greater than a width of at least a portion of the second isolation region.

Abstract: The present disclosure provides a solar cell and a photovoltaic module. The solar cell includes: a silicon substrate and a passivation anti-reflection layer located on the silicon substrate. A surface of the silicon substrate has a textured structure, including: a plurality of quasi-pyramidal structures, which includes a pyramidal face and a pyramidal apex. The pyramidal face includes: a first sub-pyramidal face away from the pyramidal apex, and a second sub-pyramidal face. In the pyramidal face of the quasi-pyramidal structure, a surface morphology of the first sub-pyramidal face is different from a surface morphology of the second sub-pyramidal face. The passivation anti-reflection layer includes: a first portion located on the first sub-pyramidal face, and a second portion located on the second sub-pyramidal face. In the passivation anti-reflection layer, a thickness of the first portion is greater than thickness of the second portion along the same direction towards the pyramidal apex.

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: 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.

Abstract: Implementations of the present specification provide a text output method and apparatus in data analysis. The method includes: determining a metric and an analytic method for a target analysis task, and executing the target analysis task based on the metric and the analytic method, to obtain a data analysis result; extracting a first parameter value of a predetermined feature parameter and a second parameter value of a common parameter from the data analysis result based on parameter configuration information; obtaining an initial text expression template configured for the analytic method; adjusting a content of the initial text expression template based on the first parameter value, to obtain a dedicated text expression template; and filling the dedicated text expression template based on the second parameter value, to obtain a text output result of the data analysis result.

Abstract: The present application discloses a solar cell and a photovoltaic module, and relates to the field of photovoltaic technologies. As an example, a solar cell includes a semiconductor substrate, a first doped semiconductor portion, a first anti-reflection layer, and a second anti-reflection layer. The semiconductor substrate has a first surface having a first region and a second region that do not overlap. The first doped semiconductor portion is arranged on the first region. The first anti-reflection layer is arranged on a surface of the first doped semiconductor portion. The second anti-reflection layer is arranged on the second region. A difference between a surface reflectivity of a side of the first anti-reflection layer facing away from the semiconductor substrate and a surface reflectivity of a side of the second anti-reflection layer facing away from the semiconductor substrate is greater than or equal to 0.5% and less than or equal to 40%.

Abstract: The present application provides implementations relating to a solar cell, a preparation method therefor, and a photovoltaic module, and relates to the field of photovoltaic technologies. In an implementation, a solar cell includes a silicon substrate, a front-side passivation anti-reflection layer located on a light-facing side of the silicon substrate, and a back-side passivation anti-reflection layer located on a back side of the silicon substrate. The silicon substrate includes a light-facing surface and a back surface. The light-facing surface of the silicon substrate includes a first textured structure, and at least a part of regions of the back surface of the silicon substrate includes a second textured structure. Apex angles of the second textured structure are greater than apex angles of the first textured structure.

Abstract: The present disclosure discloses a solar cell and a photovoltaic module. In one example, a solar cell includes a silicon substrate; a first doped crystalline silicon region and a second doped crystalline silicon region that are arranged on a back surface of the silicon substrate; and an isolation groove, configured to isolate the first doped crystalline silicon region and the second doped crystalline silicon region. A textured structure with pyramidal structures is arranged at a bottom of the isolation groove, a distribution density of apexes of the pyramidal structures ranging from 25/100 ?m2 to 80/100 ?m2. The back surface of the silicon substrate includes an overlapping region where the first doped crystalline silicon region and the second doped crystalline silicon region overlaps, the overlapping region being a polished surface.

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.

Abstract: The present disclosure provides back-contact solar cells, and methods for manufacturing back-contact solar cells. In one aspect, a back-contact cell comprising a silicon substrate, a first doped semiconductor layer on a back surface of the silicon substrate in first regions, and a second doped semiconductor layer on the back surface of the silicon substrate in second regions. The first regions and the second regions are alternately distributed at intervals. The back surface of the silicon substrate comprises an isolation region between a first region and a second region adjacent to the first region. A surface of the isolation region is recessed into the silicon substrate. A depth by which the surface of the isolation region is recessed into the silicon substrate relative to the surface of the at least one of the first regions is less than 3000 nm.