ZHEJIANG JINKO SOLAR CO., LTD.

Provided are a solar cell, a tandem solar cell, and a photovoltaic module. The solar cell includes a substrate, a doped conductive layer, and a dielectric layer. The substrate has a first surface, and the first surface includes first regions and second regions that are alternatingly arranged along a first direction, the first regions including two adjacent first regions, and the second regions including a respective second region between the two adjacent first regions. The doped conductive layer is formed over the first surface of the substrate, and includes first conductive portions and at least one second conductive portion, where the first conductive portions include two adjacent first conductive portions formed over the two adjacent first regions respectively, the at least one second conductive portion includes a respective second conductive portion between the two adjacent first conductive portions and formed over a part of the respective second region.

Provided are a solar cell and a photovoltaic module. The solar cell includes a solar cell body and a light-transmitting layer. The solar cell body includes a substrate and a passivation layer. The passivation layer is located on a side of the solar cell body facing a light-receiving surface. The light-transmitting layer is arranged on a side of the passivation layer away from the substrate. The light-transmitting layer includes an adhesive film layer, light-converting particles, and anti-reflection particles. The light-converting particles and the anti-reflection particles are arranged over the solar cell body through the adhesive film layer. An average diameter of the anti-reflection particles is less than or equal to that of the light-converting particles.

A solar cell and a photovoltaic module are provided. The solar cell includes an N-type substrate having a front surface and a rear surface, a passivation stack disposed on the front surface, and a tunneling oxide layer and a doped conductive layer disposed on the rear surface. The passivation stack includes an oxygen-containing dielectric layer including a metal oxide material, a first passivation layer including an oxygen-containing silicon nitride material, and a second passivation layer including a silicon oxynitride material. A thickness of the oxygen-containing dielectric layer is in a range of 1 nm to 15 nm in a direction perpendicular to the front surface, a thickness of the first passivation layer is in a range of 30 nm to 60 nm in the direction perpendicular to the front surface, and a thickness of the second passivation layer is in a range of 20 nm to 40 nm in the direction perpendicular to the front surface.

A photovoltaic module and a method for manufacturing the photovoltaic module are provided. A respective solar cell has a front surface and a rear surface opposite to the front surface, and electrodes formed on one or both of the front and rear surfaces. The plurality of connection members include respective sets of connection members, each set of connection members is configured to in contact connection with electrodes of two adjacent solar cells of the plurality of solar cells. Each encapsulation layer includes at least a first encapsulation sub-layer and a second encapsulation sub-layer, where flowability of the first encapsulation sub-layer is less than flowability of the second encapsulation sub-layer so that the first encapsulation sub-layer does not flow between the plurality of connection members and the plurality of electrodes.

A solar cell, a tandem solar cell and a photovoltaic module. The solar cell includes a substrate, a tunneling layer, a doped conductive layer, a first passivation layer, a first anti-reflection layer and first finger electrodes. First surface of the substrate includes first and second regions. The first region includes first sub-regions. The tunneling layer is formed over the first region. The doped conductive layer is formed over the tunneling layer. The first passivation layer is formed over the doped conductive layer and the second region. The first anti-reflection layer is formed over the first passivation layer. The first finger electrode is disposed at the first sub-region. At least one of the first finger electrodes is electrically connected to the doped conductive layer. A distance L 1 between the first finger electrode and an edge of the first sub-region in the first direction is 50 μm≤L 1 ≤800 μm.

Embodiments of the present disclosure provide a method for producing a photovoltaic module and a photovoltaic module. The method includes: providing a plurality of solar cells, each respective solar cell has an overlapping area; applying adhesive to first areas in the overlapping area of each solar cell, the first areas allow the respective solar cell to be welded to a neighboring solar cell through a plurality of welding strips; in response to hardness of the adhesive falling in a preset hardness range by curing, welding the respective solar cell to the neighboring solar cell through the plurality of welding strips, to obtain at least one cell string; and laminating a front encapsulation layer, a front encapsulation material, the at least one cell string, a rear encapsulation material and a rear encapsulation layer, to obtain the photovoltaic module.

The solar cell includes a substrate having electrode regions and non-electrode regions defined alternatively, where a surface of the electrode regions has a first surface structure, a surface of the non-electrode regions has a second surface structure, the first surface structure has a smaller roughness than the second surface structure, and the second surface structure includes multiple first protrusion structures. The solar cell further includes a tunneling dielectric layer, and a first doped conductive layer arranged on the tunneling dielectric layer. The solar cell further includes a passivation layer arranged on the non-electrode regions and the first doped conductive layer and a first electrode arranged in the electrode regions. The first electrode penetrates the passivation layer to be in electrical contact with the first doped conductive layer.

A solar cell includes a substrate having a front surface and a back surface disposed opposite to each other; the back surface of the substrate includes a first doped region and a second doped region, and an insulating region; a doped polysilicon passivation contact structure disposed in the first doped region, a doped amorphous silicon structure disposed in the second doped region, and a passivation layer disposed in the insulating region; the doped polysilicon passivation contact structure including a tunneling oxide layer and a doped polysilicon layer; the doped amorphous silicon structure including a doped amorphous silicon layer, and the doped polysilicon layer and the doped amorphous silicon layer having different doping types; wherein the passivation layer is not overlapped with the doped polysilicon passivation contact structure or the doped amorphous silicon structure along a thickness direction of the substrate.

Embodiments of the present disclosure relate to the technical field of photovoltaic, and provide a solar cell and a method for manufacturing the same. The solar cell includes a substrate, and the substrate includes a first surface and a second surface opposite to each other. At least one of the first surface and the second surface is formed as a textured surface including a plurality of pyramidal structures, and side walls of at least some of the plurality of pyramidal structures are formed with pleated portions. One respective pleated portion of the pleated portions has a first length and includes at least one scale-like protrusion within the first length, a side wall including the respective pleated portion has a second length, and a ratio of the first length to the second length is greater than or equal to 0.5.

The solar cell includes: a substrate; a tunneling dielectric layer disposed over a first surface of the substrate; a plurality of doped conductive layers arranged at intervals over the tunneling dielectric layer; a plurality of first electrodes each extending in a first direction, where the plurality of first electrodes are arranged at intervals along a second direction, and each first electrode is disposed on and electrically connected to a corresponding one of the plurality of doped conductive layers; and at least one conductive transport layer, where the at least one conductive transport layer includes a respective conductive transport layer between every two adjacent doped conductive layers and in contact with a side surface of each of the two adjacent doped conductive layers. The at least one conductive transport layer and the plurality of doped conductive layers are doped with doping elements of a same type.