Abstract: A solar cell and a photovoltaic module are disclosed, including: a substrate; a tunneling dielectric layer and a doped conductive layer disposed on the substrate, the tunneling dielectric layer being disposed between the doped conductive layer and a surface of the substrate, the doped conductive layer having a N-type or P-type doping element and having a plurality of first heavily doped regions spaced apart from each other and extending in a first direction, a doping concentration in the first heavily doped regions being greater than that in other regions of the doped conductive layer; a passivation layer disposed on a surface of the doped conductive layer facing away from the substrate; and a plurality of electrodes spaced apart from each other, extending in a second direction and penetrating the passivation layer to contact the doped conductive layer, at least two first heavily doped regions contacting a same electrode.

Abstract: Embodiments of the present disclosure provide a solar cell and a solar cell module. The solar cell includes a first region and a second region, and further includes a substrate having a first surface and a second surface; a tunneling layer covering the second surface; a first emitter disposed on part of the tunneling layer in the first region; and a second emitter disposed on part of the tunneling layer in the second region and on the first emitter, a conductivity type of the second emitter being different from a conductivity type of the first emitter. The solar cell further includes a first electrode disposed in the first region and configured to electrically connect with the first emitter by penetrating through the second emitter; and a second electrode disposed in the second region and configured to electrically connect with the second emitter.

Abstract: A method and apparatus for testing solar cell performance. The method for testing solar cell performance includes: provide a solar cell; illuminating the solar cell; acquire an illumination intensity of light onto the solar cell; acquire a luminous intensity of light emitted from the solar cell in response to the solar cell being illuminated; and determine the solar cell performance based on the illumination intensity and the luminous intensity.

Abstract: Provided are a photovoltaic module, comprising a solar cell string having a plurality of solar cells arranged in sequence, adjacent solar cells being connected by solder strips, the solder strip being connected to a front surface of one solar cell and to a back surface of the other solar cell, a long-side dimension of the solar cell being within a range of 150 mm to 220 mm; two protective adhesive layers respectively covering front and back surfaces of the solar cell string, a dimensional difference between thicknesses of one protective adhesive layer and the solder strip being defined as first thickness, a ratio of the first thickness to the thickness of one protective adhesive layer being not less than 0 and not greater than 20%; a transparent plate covering the protective adhesive layer on the front surface; and a back plate covering the protective adhesive layer on the back surface.

Abstract: A photovoltaic cell array and a photovoltaic module are provided. The photovoltaic cell array includes multiple solar cells and a flexible metal conductive strip. Each solar cell includes an upper surface, upper segment electrodes, a lower surface, and lower segment electrodes. A first solar cell including a first overlap region is adjacent to a second solar cell including a second overlap region. The second overlap region, a third overlap region of the flexible metal conductive strip, and the first overlap region are sequentially stacked. The flexible metal conductive strip is welded to only one lower segment electrode and only one upper segment electrode. The lower segment electrodes of the first solar cell are outside the first overlap region, and the upper segment electrodes are outside the second overlap region.

Abstract: Provided is a solar cell module and a manufacturing method thereof, and a photovoltaic module. The solar cell module includes a substrate; and conductive layers arranged on a surface of the substrate and separated from each other. Solar sub-cells are provided on a surface of the conductive layer. Grooves are provided between adjacent solar sub-cells to separate the solar sub-cells from each other. Each of the solar sub-cells includes a hole transport layer, a perovskite layer and an electron transport layer that are stacked on the surface of the conductive layer. The hole transport layer of each solar sub-cell includes branch electrodes separated from each other. Each of the branch electrodes contacts an interior of the conductive layer. The solar cell module further includes an electrode. The electrode successively passes through the electron transport layer and the perovskite layer and is connected to the branch electrodes.

Abstract: A solar cell and a photovoltaic module including the same are provided. The solar cell includes a substrate having a first surface and a second surface opposite to each other; a first passivation stack disposed on the first surface and including a first oxygen-rich dielectric layer, a first silicon-rich dielectric layer, a second oxygen-rich dielectric layer, and a second silicon-rich dielectric layer that are sequentially disposed in a direction away from the first surface, wherein an atomic fraction of oxygen in the first oxygen-rich dielectric layer is less than an atomic fraction of oxygen in the second oxygen-rich dielectric layer; a tunneling oxide layer disposed on the second surface; a doped conductive layer disposed on a surface of the tunneling oxide layer; and a second passivation layer disposed on a surface of the doped conductive layer.

Abstract: A solar cell and a photovoltaic module including the solar cell. The solar cell includes: a semiconductor substrate including a first surface and a second surface opposite to each other; a first dielectric layer located on the first surface; a first N+ doped layer located on a surface of the first dielectric layer; a first passivation layer located on a surface of the first N+ doped layer; a first electrode located on a surface of the first passivation layer; a second dielectric layer located on the second surface; a first P+ doped layer located on a surface of the second dielectric layer; a second passivation layer located on a surface of the first P+ doped layer; and a second electrode located on a surface of the second passivation layer.

Abstract: A paste and a damp-heat (DH) attenuation resistant photovoltaic cell. The paste comprises a paste body, into which an inert metal element and an oxide thereof are added, so that a barrier layer having a certain thickness can be formed on the surface of an electrode after sintering, and the barrier layer can resist oxidation and corrosion so as to enhance the oxidation resistance and the acid corrosion resistance of the metallized electrode. The electrode of the photovoltaic cell is made of the paste, and the DH attenuation resistant photovoltaic cell made of the paste can reduce DH attenuation and power loss, and has the enhanced environmental protection property and reliability.

Abstract: Disclosed is a barrier-type photovoltaic solder strip capable of reducing damp-heat (DH) attenuation, the photovoltaic solder strip comprising a photovoltaic solder strip body. A moisture barrier layer is arranged on a surface of the photovoltaic solder strip body that is not in contact with an electrode of a solar cell, and the moisture barrier layer can prevent external water and gas from entering the photovoltaic solder strip body, thus, on the basis of low cost, corrosion of the photovoltaic solder strip body by acidic substances, oxidizing agents and water in a module is reduced, thereby reducing attenuation of a photovoltaic module in a DH environment.

Abstract: The present disclosure provides a solar cell. The solar cell includes a substrate, where the substrate has a front surface and a rear surface, the rear surface includes a textured region and a flat region, a doped surface field is formed in the textured region of the substrate; a tunneling dielectric layer, where the tunneling dielectric layer is located on the flat region; a doped conductive layer, where the doped conductive layer is located on the tunnelling dielectric layer, the doped conductive layer has doping elements, and the doped conductive layer has the same type of the doping elements with the doped surface field; a rear electrode, where a part of a bottom surface of the rear electrode is located in the doped conductive layer and the part of the bottom surface of the rear electrode is in contact with the doped surface field.

Abstract: A solar cell, a method for producing a solar cell, and a solar module are provided. The solar cell includes: an N-type substrate and a P-type emitter formed on a front surface of the substrate; a first passivation layer, a second passivation layer and a third passivation layer sequentially formed over the front surface of the substrate and in a direction away from the P-type emitter, and a passivated contact structure disposed on a rear surface of the substrate. The first passivation layer includes a first Silicon oxynitride (SiOxNy) material, where x>y. The second passivation layer includes a first silicon nitride (SimNn) material, where m>n. The third passivation layer includes a second silicon oxynitride (SiOiNj) material, where a ratio of i/j?[0.97, 7.58].

Abstract: A photovoltaic cell is provided, which includes a substrate; a first passivation layer and a first anti-reflection layer disposed on a front surface of the substrate; and a second passivation layer, a PPW layer and at least one silicon nitride layer SiuNv (1<u/v<4) disposed on a rear surface of the substrate. The at least one silicon nitride layer has a refractive index and a thickness in respective ranges of 1.9 to 2.5 and 50 nm to 100 nm. The second passivation layer includes at least one aluminum oxide layer AlxOy (0.8<y/x<1.6), a refractive index and a thickness of which are respectively in ranges of 1.4 to 1.6 and 4 nm to 20 nm. The PPW layer includes at least one silicon oxynitride layer SirOsNt (r>s>t), a refractive index and a thickness of which are respectively in ranges of 1.5 to 1.8 and 1 nm to 30 nm.

Abstract: A solar cell and a photovoltaic module including the solar cell. The solar cell includes: a semiconductor substrate including a first surface and a second surface opposite to each other; a first dielectric layer located on the first surface; a first N+ doped layer located on a surface of the first dielectric layer; a first passivation layer located on a surface of the first N+ doped layer; a first electrode located on a surface of the first passivation layer; a second dielectric layer located on the second surface; a first P+ doped layer located on a surface of the second dielectric layer; a second passivation layer located on a surface of the first P+ doped layer; and a second electrode located on a surface of the second passivation layer.

Abstract: Provided are a solar cell, a manufacturing method thereof, and a photovoltaic module. The solar cell includes: a semiconductor substrate, in which a rear surface of the semiconductor substrate having a first texture structure, the first texture structure includes two or more first substructures at least partially stacked on one another, and in a direction away from the rear surface and perpendicular to the rear surface, a distance between a top surface of an outermost first substructure and a top surface of an adjacent first substructure being less than or equal to 2?m; a first passivation layer located on a front surface of the semiconductor substrate; a tunnel oxide layer located on the first texture structure; a doped conductive layer located on a surface of the tunnel oxide layer; and a second passivation layer located on a surface of the doped conductive layer.

Abstract: A structure of partial tunnel oxide passivated contact for a photovoltaic cell and a photovoltaic module. The structure comprises: a first tunnel oxide layer disposed on a surface of a cell body, and a first polysilicon film disposed on a surface of the tunnel oxide layer. The surface of the cell body has a region for passivated contact and a region for light absorption, the first tunnel oxide layer is disposed in the region for passivated contact, and a projection of the first polysilicon film on the surface of the cell body is located in the region for passivated contact.

Abstract: A solar cell, a method for producing a solar cell, and a solar module are provided. The solar cell includes: an N-type substrate and a P-type emitter formed on a front surface of the substrate; a first passivation layer, a second passivation layer and a third passivation layer sequentially formed over the front surface of the substrate and in a direction away from the P-type emitter, and a passivated contact structure disposed on a rear surface of the substrate. The first passivation layer includes a first Silicon oxynitride (SiOxNy) material, where x>y. The second passivation layer includes a first silicon nitride (SimNn) material, where m>n. The third passivation layer includes a second silicon oxynitride (SiOiNj) material, where a ratio of i/j?[0.97, 7.58].

Abstract: Disclosed are a photovoltaic frame and a photovoltaic module. The photovoltaic frame includes a top support portion, a bottom support portion, a transverse edge portion, a first side edge portion and a second side edge portion. The top support portion, the transverse edge portion and the second side edge portion enclose a holding slot. The photovoltaic frame further includes a first weather-resistant protective layer configured to cover a part of outer surfaces of the top support portion, the bottom support portion, the first side edge portion, the second side edge portion and the transverse edge portion, and a second weather-resistant protective layer configured to cover at least part of the outer surfaces that are not covered by the first weather-resistant protective layer. A thickness of the second weather-resistant protective layer is less than a thickness of the first weather-resistant protective layer.

Abstract: Embodiments of the present disclosure provide a photovoltaic cell, a method for manufacturing the photovoltaic cell, and a photovoltaic module. The photovoltaic cell includes a substrate, and an emitter and a first passivation structure that are located on a first surface of the substrate, where the emitter is located between the substrate and the first passivation structure; a first electrode, penetrating through the first passivation structure and being in contact with the emitter; and a first eutectic, located between the first electrode and the emitter, where the first eutectic includes a material of the first electrode and a material of the emitter, and a part of the first electrode penetrates through the first eutectic and is in contact with the emitter.

Abstract: A solar cell and a photovoltaic module including the solar cell. The solar cell includes: a semiconductor substrate including a first surface and a second surface opposite to each other; a first dielectric layer located on the first surface; a first N+ doped layer located on a surface of the first dielectric layer; a first passivation layer located on a surface of the first N+ doped layer; a first electrode located on a surface of the first passivation layer; a second dielectric layer located on the second surface; a first P+ doped layer located on a surface of the second dielectric layer; a second passivation layer located on a surface of the first P+ doped layer; and a second electrode located on a surface of the second passivation layer.