Abstract: Provided is a photovoltaic module, including: a substrate, at least one solar cell string and a packaging portion, wherein a bottom of the packaging portion has a packaging slot, the substrate and the at least one solar cell string are arranged in the packaging slot, the at least one solar cell string is arranged on a top surface of the substrate, a packaging gap is formed between a side surface of the substrate and a side surface of the packaging slot, a first packaging layer is arranged in the packaging gap, and the first packaging layer is configured to seal the packaging gap.

Abstract: Provided is a solar cell and a photovoltaic module. The solar cell includes a silicon substrate, and the silicon substrate includes a front surface and a back surface arranged opposite to each other. P-type conductive regions and N-type conductive regions are alternately arranged on the back surface of the silicon substrate. Front surface field regions are located on the front surface of the silicon substrate and spaced from each other. The front surface field regions each corresponds to one of the P-type conductive regions or one of the N-type conductive regions. At least one front passivation layer is located on the front surface of the silicon substrate. At least one back passivation layer is located on surfaces of the P-type conductive regions and N-type conductive regions.

Abstract: Provided are a solar cell and a manufacturing method thereof, and a photovoltaic module. The solar cell includes: a bottom cell, a perovskite top cell, an inter layer between the bottom cell and the perovskite top cell, and a back electrode located on a back surface of the bottom cell. The perovskite top cell includes a hole transport layer, a perovskite layer, an electron transport layer, and a conductive structure stacked sequentially. The conductive structure includes at least one stack each including a first conductive layer and a second conductive layer located between the first conductive layer and the electron transport layer. The first conductive layer includes a first transparent conductive film. The second conductive layer includes a metal conductive film in a metallization region and a second transparent conductive film in a non-metallization region.

Abstract: Provided is a solar cell and a photovoltaic module. The solar cell includes a silicon substrate, and the silicon substrate includes a front surface and a back surface arranged opposite to each other. P-type conductive regions and N-type conductive regions are alternately arranged on the back surface of the silicon substrate. Front surface field regions are located on the front surface of the silicon substrate and spaced from each other. The front surface field regions each corresponds to one of the P-type conductive regions or one of the N-type conductive regions. At least one front passivation layer is located on the front surface of the silicon substrate. At least one back passivation layer is located on surfaces of the P-type conductive regions and N-type conductive regions.

Abstract: A solar cell including: a substrate having front and back surfaces, the back surface including first and second regions staggered and spaced from each other, and a gap region provided between one first region and one adjacent second region, a plurality of first pyramidal texture structure regions formed corresponding to a plurality of gap regions and a distance between a top and bottom thereof is 2-4 ?m; a first conductive layer formed over the first region; a second conductive layer formed over the second region, the second conductive layer has a conductivity type opposite to the first conductive layer; a first electrode forming electrical contact with the first conductive layer; a second electrode forming electrical contact with the second conductive layer; and a boundary region between the gap region and the conductive layer(s) adjacent thereto, the boundary region including strip or line-patterned texture structures arranged at intervals.

Abstract: A solar cell includes a substrate having a front surface and a back surface opposite to the front surface; a first passivation layer, a second passivation layer and a third passivation layer sequentially formed on the front surface of the substrate and in a direction away from the substrate; where the first passivation layer includes a dielectric material; the second passivation layer includes a first SiuNv material, and a value of v/u is 1.3?v/u?1.7; and the third passivation layer includes a SirOs material, and a value of s/r is 1.9?s/r?3.2; and a tunneling oxide layer and a doped conductive layer sequentially formed on the back surface of the substrate and in a direction away from the back surface; the doped conductive layer and the substrate are doped to have a same conductivity type.

Abstract: A semiconductor substrate, including a back surface having N-type conductive regions and P-type conductive regions. The N-type conductive regions are provided with first non-pyramidal texture structures, and the P-type conductive regions are provided with second non-pyramidal texture structures. A top surface of the first non-pyramidal texture structure is a polygonal plane, and a top surface of the second non-pyramidal texture structure is a polygonal plane. A one-dimensional size of the top surface of the first non-pyramidal texture structure is less than a one-dimensional size of the top surface of the second non-pyramidal texture structure. The one-dimensional size of the top surface of the first non-pyramidal texture structure is in a range of 5 ?m to 12 ?m. The one-dimensional size of the top surface of the second non-pyramidal texture structure is in a range of 10 ?m to 40 ?m.

Abstract: Provided are a solar cell and a photovoltaic module. The solar cell includes: a silicon substrate; a passivation layer provided on a surface of the silicon substrate; a first electrode conductor at least partially arranged on the passivation layer and including a body portion and protruding portions located on two ends of the body portion; and a second electrode conductor at least partially arranged on the passivation layer and at least partially overlapping with the protruding portions. A length of each of the protruding portions in a width direction of the body portion is greater than a width of the body portion.

Abstract: A solar cell includes: a substrate having front and back surfaces opposite to each other, the back surface includes first regions, second regions and gap regions, the first regions and the second regions are staggered and spaced from each other in a first direction, and each gap region is provided between one first region and one adjacent second region; a first conductive layer formed over the first region; a second conductive layer formed over the second region, the second conductive layer has a conductivity type opposite to the first conductive layer; a first electrode forming electrical contact with the first conductive layer; a second electrode forming electrical contact with the second conductive layer; and first pyramidal texture structures formed on the back surface corresponding to the gap regions. A curved interface region is formed between side wall of the first/second conductive layer and side wall of the adjacent gap region.

Abstract: A photovoltaic cell is provided, including: a substrate; a tunneling layer, a field passivation layer and a first passivation film that are sequentially disposed on a rear surface of the substrate; and a first electrode. The first electrode penetrates the first passivation film and is in contact with the field passivation layer. A doping concentration of the first doping element in the tunneling layer is less than a doping concentration of the first doping element in the field passivation layer, and the doping concentration of the first doping element in the tunneling layer is greater than a doping concentration of the first doping element in the substrate. The field passivation layer includes a first doped region and a second doped region, and a doping curve slope of the first doped region is greater than a doping curve slope of the second doped region.

Abstract: Provided is a busbar-free interdigitated back contact (IBC) solar cell and an IBC solar cell module. The IBC solar cell includes a semiconductor substrate, finger electrode lines and conductive lines. The finger electrode lines include first finger electrode lines and second finger electrode lines that are alternately arranged on the semiconductor substrate. The conductive lines include first conductive lines and second conductive lines that are alternately arranged. The first conductive lines are connected to the first finger electrode lines and spaced apart from the second finger electrode lines. The second conductive lines are connected to the second finger electrode lines and spaced apart from the first finger electrode lines.

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 formed on part of the tunneling layer in the first region; and a second emitter formed 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 configured to electrically connect with the first emitter by penetrating through the second emitter; and a second electrode formed in the second region and configured to electrically connect with the second emitter.

Abstract: A solar cell including: a substrate having front and back surfaces, the back surface includes first, second and gap regions, the first and second regions are staggered and spaced from each other in a first direction, and each gap region is provided between one first region and one second region adjacent thereto by recessing toward interior of the substrate; a first conductive layer formed over the first region; a second conductive layer formed over the second region, the second conductive layer has a conductivity type opposite to the first conductive layer; a first electrode forming electrical contact with the first conductive layer; a second electrode forming electrical contact with the second conductive layer; and a boundary region between the gap region and the first and/or second conductive layer adjacent thereto, and a line-pattern concave and convex texture structure is formed on the back surface corresponding to the boundary region.

Abstract: A solar cell includes a substrate having a front surface and a back surface opposite to the front surface; a first passivation layer, a second passivation layer and a third passivation layer sequentially formed on the front surface of the substrate and in a direction away from the substrate; where the first passivation layer includes a dielectric material; the second passivation layer includes a first SiuNv material, and a value of v/u is 1.3?v/u?1.7; and the third passivation layer includes a SirOs material, and a value of s/r is 1.9?s/r?3.2; and a tunneling oxide layer and a doped conductive layer sequentially formed on the back surface of the substrate and in a direction away from the back surface; the doped conductive layer and the substrate are doped to have a same conductivity type.

Abstract: Provided is a busbar-free interdigitated back contact (IBC) solar cell and an IBC solar cell module. The IBC solar cell includes a semiconductor substrate, finger electrode lines and conductive lines. The finger electrode lines include first finger electrode lines and second finger electrode lines that are alternately arranged on the semiconductor substrate. The conductive lines include first conductive lines and second conductive lines that are alternately arranged. The first conductive lines are connected to the first finger electrode lines and spaced apart from the second finger electrode lines. The second conductive lines are connected to the second finger electrode lines and spaced apart from the first finger electrode lines.

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 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 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 is a solar cell and a photovoltaic module. The solar cell includes a silicon substrate, and the silicon substrate includes a front surface and a back surface arranged opposite to each other. P-type conductive regions and N-type conductive regions are alternately arranged on the back surface of the silicon substrate. Front surface field regions are located on the front surface of the silicon substrate and spaced from each other. The front surface field regions each corresponds to one of the P-type conductive regions or one of the N-type conductive regions. At least one front passivation layer is located on the front surface of the silicon substrate. At least one back passivation layer is located on surfaces of the P-type conductive regions and N-type conductive regions.