Abstract: 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.

Abstract: The present disclosure provides a transparent conductive contact passivation heterojunction solar cell and a cell component, the heterojunction solar cell comprises a silicon substrate, a tunneling layer, a first transparent conductive film layer and an anti-reflection layer, wherein: the silicon substrate has a first surface and a second surface opposite to each other, and the first surface is closer to a light-facing side of the heterojunction solar cell than the second surface; the tunneling layer, the first transparent conductive film layer and the anti-reflection layer are located on the first surface in sequence. The heterojunction solar cell and cell component provided by this disclosure can increase the short-circuit current of the heterojunction solar cell, improve the efficiency of the solar cell, and achieve a better passivation effect overall.

Abstract: The present disclosure provides an interdigitated back contact cell and a manufacturing method thereof. The interdigitated back contact cell includes: a substrate including a front side and a back side, the front side being arranged opposite to the back side; where, along a first direction, first functional regions and second functional regions are alternately arranged on the back side of the substrate; an isolation region is arranged between every adjacent first functional region and second functional region; and the first emitter is spatially isolated from one adjacent second emitter by a corresponding isolation region; and the first diffusion layer is in contact with at least one adjacent second diffusion layer in a corresponding region of a corresponding isolation region. The interdigitated back contact cell provided by the present disclosure has a lower reverse breakdown voltage, a high component reliability, and a high cell efficiency.

Abstract: The present disclosure relates to a heterojunction solar cell, a manufacturing method thereof and a photovoltaic module. The heterojunction solar cell includes a substrate of a first conductivity type, a tunnel layer located on a light-receiving surface of the substrate, and a doped polysilicon layer located on a top surface of the tunnel layer. The doped polysilicon layer has the first conductivity type.

Abstract: The present disclosure relates to the field of solar cell technologies. The present disclosure provides a solar cell and a manufacturing method therefor, a photovoltaic module, and a photovoltaic system. The solar cell includes: a substrate; a tunnel oxide layer stacked on a surface of the substrate, the tunnel oxide layer being an oxide layer including at least a silicon element and an oxygen element; and a polysilicon doped conductive layer stacked on a side of the tunnel oxide layer facing away from the substrate. The tunnel oxide layer is doped with a carbon element and a hydrogen element.

Abstract: This disclosure provides back contact cell and solar cell module.

Abstract: A solar cell is provided. The solar cell includes a semiconductor substrate. The front surface of the semiconductor substrate has a metal contact area and a non-metal contact area. A first tunneling layer, a first doped polysilicon layer and a first metal electrode are sequentially stacked on the metal contact area. The first metal electrode is electrically connected to the first doped polysilicon layer. A second tunneling layer, a second doped polysilicon layer and a second metal electrode are sequentially stacked on the back surface of the semiconductor substrate.

Abstract: A solar cell comprises a substrate having a first surface and a second surface opposite to each other in a first direction, wherein the first direction is a thickness direction of the substrate; a tunnel oxide layer located on the first surface and/or the second surface; a doped polysilicon layer located on a surface of the tunnel oxide layer away from the substrate; a barrier layer located in an electrode region of the solar cell and in contact with the doped polysilicon layer, wherein a doping type of the barrier layer is the same as the doped polysilicon layer; an electrode located in the electrode region and in contact with the barrier layer; characterized in that wherein a method of forming the barrier layer includes etching the doped polysilicon layer in the electrode region in the first direction to form a groove with a predetermined depth, and forming the barrier layer in the groove, wherein the predetermined depth is equal to or less than a thickness of the doped polysilicon layer, a material of the

Abstract: Provided in the present invention are a selective passivated contact cell and a preparation method therefor. The selective passivated contact cell comprises a substrate, wherein a first silicon oxide layer and a first polysilicon layer are sequentially arranged on the surface of one side of the substrate in a stacked manner, the surface of the substrate comprises a non-metal contact region and at least two metal contact regions; in the metal contact regions, a second silicon oxide layer and a second polysilicon layer are further sequentially arranged the surface of the side of the first polysilicon layer that is away from the substrate, and a first electrode is arranged on the second polysilicon layer; and the first polysilicon layer has a greater thickness in the metal contact regions than in the non-metal contact region. The present invention has the characteristics of simple structure, simple preparation process, a high efficiency, etc.

Abstract: A solar cell includes a semiconducting substrate, a first emitter, an insulating layer, and a second emitter. The semiconducting substrate includes a first surface and a second surface, and includes a first region and a second region. The first region includes a first sub-region and a second sub-region. The first sub-region is in contact with the second region. The first direction is perpendicular to the thickness direction of the semiconducting substrate. The first emitter is disposed on the first surface and in the first region. The insulating layer is disposed on the first emitter and in the first sub-region. The second emitter is disposed on the first surface. The second emitter includes a first sub-emitter and a second sub-emitter. The first sub-emitter is located on the second region. The second sub-emitter is disposed on the insulating layer. Electrical conduction exists between the first emitter and the first sub-emitter.

Abstract: A method for preparing a solar cell includes providing a substrate with a first conducting layer, the substrate including a first surface and a second surface opposite to each other in a thickness direction of the substrate, the first conducting layer being formed on the first surface; forming a first electrode pattern on a side of the first conducting layer away from the substrate, the first electrode pattern being electrically connected to the first conducting layer, the first electrode pattern including a first soldering pattern, the first soldering pattern being configured for soldering to one or more first bus ribbons; forming a first dielectric layer on a side of the first electrode pattern away from the substrate, and covering the first electrode pattern with the first dielectric layer; and removing a portion of the first dielectric layer corresponding to the first soldering pattern, and exposing the first soldering pattern.

Abstract: The present application relates to a solar cell and a method for manufacturing same, a photovoltaic module, and a photovoltaic system. The solar cell includes a substrate, a doped conducting layer, a first passivation layer, a passivating contact layer, and a second passivation layer. At least a first surface and a portion of a first side surface of the substrate include a textured structure. The doped conducting layer is disposed at least on the first surface and the first side surface to cover the textured structure. The first passivation layer is stacked on the doped conducting layer and covers the first surface and the first side surface to cover the doped conducting layer. The passivating contact layer is disposed on a second surface of the substrate. The second passivation layer is stacked on the passivating contact layer and covers the second surface to cover the passivating contact layer.

Abstract: A solar cell comprises a substrate having an opposite first surface and a second surface, and the second surface has a first regions and a second regions adjacent in the first direction; a first passivation layer located on the first surface; a first doped layer and a tunnel oxide layer sequentially stacked in the first region; a first insulating layer located on a surface of the first doped layer away from the substrate; a second passivation layer located in the second region and extending to a surface of the first insulating layer away from the substrate; a second doped layer located on a surface of the second passivation layer away from the substrate, and a second insulating layer located between the second passivation layer and the first doped layer, the tunnel oxide layer in the first direction, a surface of the second insulating layer away from the substrate contacting with the first insulating layer.

Abstract: The present disclosure provides a gate line structure of a solar cell and a solar cell applying same. The structure comprises a plurality of main gate lines extending along a first direction and arranged at intervals along a second direction, and a plurality of thin gate lines extending along the second direction and arranged at intervals along the first direction, wherein the first direction and the second direction are not parallel, the plurality of main gate lines are electrically connected to the plurality of thin gate lines respectively, and between any two adjacent main gate lines, each thin gate line has a disconnected section. According to the gate line structure of a solar cell and a solar cell applying same of the present disclosure, silver paste consumption can be effectively reduced while ensuring cell efficiency, reducing the preparation costs of a solar cell.

Abstract: The present disclosure provides a hybrid solar battery, composing of: a first surface and a second surface opposing to each other, and the hybrid solar battery is further composed of a silicon substrate; a tunneling layer located between the silicon substrate and the first surface; and an intrinsic amorphous silicon layer is located between the silicon substrate and the second surface. The hybrid solar battery and photovoltaic module proposed in this disclosure can reduce the parasitic absorption of the film layer the production cost on the basis of improving the conversion efficiency of the battery.

Abstract: A stacked cell and preparation method thereof. The stacked cell includes: a crystalline silicon cell; a conductive connecting layer located on a surface of the crystalline silicon cell; a first isolation layer extending from a surface of the conductive connecting layer facing away from the crystalline silicon cell to penetrate through the conductive connecting layer, and a perovskite cell located on the surface of the conductive connecting layer facing away from the crystalline silicon cell.

Abstract: The present application provides a large-area perovskite layer and a preparation method thereof. The preparation method includes: dissolving raw materials of a perovskite in an ionic liquid or in a mixture of the ionic liquid and an organic solvent, thereby forming a perovskite precursor, and coating the perovskite precursor onto a surface of a crystalline silicon bottom cell, thereby forming the perovskite layer.

Abstract: A solar cell and a manufacturing method thereof, a photovoltaic module, and a photovoltaic system.

Abstract: A solar cell includes a semiconducting substrate, a first emitter, and a second emitter. The semiconducting substrate includes first and second surfaces. The semiconducting substrate includes first and second regions. The first direction is perpendicular to the thickness direction of the semiconducting substrate. The first emitter is in a first conductivity type. The first emitter is disposed on the first surface and including a groove. The groove divides the first emitter into a first sub-emitter and a second sub-emitter. The first sub-emitter is located on the first region. The second sub-emitter is located on the second region. The second emitter is in a second conductivity type, and the second emitter is disposed on the first surface and located on the second region. The minimum distance between the second emitter and the second surface is less than the minimum distance between the first emitter and the second surface.

Abstract: A solar cell and a manufacturing method thereof, a photovoltaic module, and a photovoltaic system. The solar cell includes a substrate and a passivated contact structure. The passivated contact structure includes a first tunnel oxide layer, a polysilicon doped conductive layer, and a second tunnel oxide layer sequentially disposed on a surface of the substrate. A plurality of holes arranged spaced apart from each other are formed in at least a part of regions of the polysilicon doped conductive layer and the first tunnel oxide layer. Each of the holes extends through the polysilicon doped conductive layer and extends into the first tunnel oxide layer. The second tunnel oxide layer at least fills a portion of each of the holes that is located within the first tunnel oxide layer.