Disclosed are a solar cell and a photovoltaic module. The solar cell includes: a solar cell, a substrate, a passivation contact layer, a doped layer, and a first passivation dielectric layer. The substrate has a first surface and a second surface arranged to be opposite to each other, and the first surface of the substrate includes a first region and a second region alternately arranged along a preset direction. The passivation contact layer is disposed in the first region and includes a tunneling layer and a doped conductive layer stacked and arranged in the first region of the first surface. The doped layer is disposed in the second region. The first passivation dielectric layer is disposed on a surface of the doped layer facing away from the substrate.

Disclosed is a method for producing a photovoltaic cell. The method includes providing a silicon wafer, forming a tunneling oxide layer on a first side of the silicon wafer, forming an amorphous silicon layer having alternatingly arranged P-type amorphous silicon and N-type amorphous silicon on a side of the tunneling oxide layer away from the silicon wafer, forming a protective layer on a side of the amorphous silicon layer away from the silicon wafer, performing laser processing on the protective layer and the amorphous silicon layer to form grooves, subjecting the silicon wafer to further processing to increase depths of the grooves, removing the protective layer, and subjecting the silicon wafer to high temperature processing to convert the amorphous silicon layer into a polycrystalline silicon layer.

A solar cell includes: a silicon substrate; a first semiconductor layer and a second semiconductor layer provided on the silicon substrate, the first semiconductor layer being doped with an N-type conductive element, and the second semiconductor layer being doped with a P-type conductive element; a first electrode electrically connected to the first semiconductor layer through a plurality of first conductive structures; and a second electrode electrically connected to the second semiconductor layer through a plurality of second conductive structures; wherein a density of the plurality of first conductive structures is greater than a density of the plurality of second conductive structures.

A solar cell is provided, including a substrate having a first surface and a second surface, the first surface having a textured structure including protrusion structures, at least one doped semiconductor layer each formed over one of the first surface and the second surface, at least one passivation film each formed on a respective doped semiconductor layer, and electrodes penetrating a respective passivation film to be in electrical contact with the respective doped semiconductor layer. Each doped semiconductor layer has a surface facing away from the substrate and provided with recesses, and each recess has a size that is smaller than a size of any of the protrusion structures. Each passivation film has at least one portion formed in at least one of the recesses, and each electrode has at least one portion formed in at least one of the recesses.

A photovoltaic cell is provided, including a substrate having a front surface with metal pattern regions and a rear surface opposite to the front surface, a diffusion region disposed in a portion of the substrate corresponding to a respective metal pattern region of the plurality of metal pattern regions, a passivation structure disposed on the front surface at the respective metal pattern region, a tunneling layer formed on the rear surface and a doped conductive layer stacked over the tunneling layer. A doping element concentration of the diffusion region is greater than a doping element concentration of the substrate.

A solar cell and a manufacturing method are provided. In one example, a solar cell includes: a semiconductor substrate including a first surface having a plurality of first texture structures, where a first texture structure includes a side surface and a top surface; a tunneling layer, located on the first surface of the semiconductor substrate; a doped semiconductor layer, located on a surface of the tunneling layer away from the semiconductor substrate; an electrode, located on a surface of the doped semiconductor layer away from the semiconductor substrate and in contact with the doped semiconductor layer; and metal crystals distributed in the doped semiconductor layer at a position in contact with the electrode. A distribution density of the metal crystals in the doped semiconductor layer located on the top surface is greater than that in the doped semiconductor layer located on the side surface.

A solar cell, a preparation method thereof, a photovoltaic module, and a photovoltaic system, wherein the solar cell includes a substrate and a first tunnel oxide layer and a passivation medium layer sequentially stacked on a first surface of the substrate. The first tunnel oxide layer is at least partially in contact with the first surface. The passivation medium layer includes at least a transparent conductive oxide layer.

A solar cell and a photovoltaic module are provided. The solar cell includes a substrate provided with a first face and a second face, at least one of which is a side of the substrate. On shared prismatic edges and/or shared corners where the first surface and the second surface are adjacent, the substrate is also provided with a multiple-pyramid shared body having a shared face. When viewed in the direction towards the first surface, the multiple-pyramid shared body includes a first pyramid structure formed by enclosing several first triangular surfaces and several third triangular surfaces. When viewed in the direction towards the second surface, the multiple-pyramid shared body includes a second pyramid structure formed by enclosing several second triangular surfaces and several third triangular surfaces.

The present disclosure relates to a photovoltaic module and a method for preparing the same. The method includes: printing a grid line paste on a semi-finished solar cell and sintering the grid line paste into a grid line precursor; performing a laser-induced contact treatment to form a metal grid line, and ensuring the metal grid line to extend through a passivation layer to be in a direct contact with a semiconductor layer; forming an enhancing conductive microstructure at a contact interface between the metal grid line and the semiconductor layer; placing an electrical connector on the metal grid line, and pressing the electrical connector, such that the electrical connector and the metal grid line have a conductive contact area; applying an adhesive to the conductive contact area; and laminating.

Disclosed are a solar cell, a tandem solar cell, and a photovoltaic module. The solar cell includes a substrate, a doped semiconductor layer, a passivation layer and a plurality of electrodes. The substrate is provided with textured structures on a portion of a surface of the substrate. The doped semiconductor layer is disposed on the substrate. The solar cell further includes holes extending through the doped semiconductor layer, and corresponding to the textured structures, respectively, and a bottom of a respective hole exposes at least a portion of a corresponding textured structure. The passivation layer is formed over a surface of the doped semiconductor layer away from the substrate, fills the holes. The plurality of electrodes are arranged along a first direction, pass through the passivation layer and are in electrical contact with the doped semiconductor layer.