The present invention discloses a back contact solar cell. The back contact solar cell includes a semiconductor substrate having a front surface and a rear surface; a first conductive type semiconductor region having a first conductive type and a second conductive type semiconductor region having a second conductive type at an interval on the rear surface of the semiconductor substrate. Furthermore, the rear surface of the semiconductor substrate has a texturing structure at the interval between the first conductive type semiconductor region and the second conductive type semiconductor region.

The present invention discloses a back contact solar cell. The back contact solar cell includes a semiconductor substrate having a front surface and a rear surface; a first conductive type semiconductor region having a first conductive type and a second conductive type semiconductor region having a second conductive type at an interval on the rear surface of the semiconductor substrate. Furthermore, the rear surface of the semiconductor substrate has a texturing structure at the interval between the first conductive type semiconductor region and the second conductive type semiconductor region.

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.

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

The present disclosure provides a back-contact cell, a method for preparing the same, and a back-contact cell module. The back-contact cell includes: a silicon substrate, wherein the silicon substrate includes a substrate front side close to sunlight and a substrate back side away from sunlight; a first doping region, an isolation region, and a second doping region, located on the substrate back side, wherein the first doping region and the second doping region have different doping elements, and the isolation region is located between the first doping region and the second doping region on the substrate back side; a front passivation anti-reflection layer located on the substrate front side; and a protective layer located on at least part of the front passivation anti-reflection layer, wherein the protective layer includes resin material. The back-contact cell, the method for preparing the same, and the back-contact cell module of the present disclosure can eliminate the isolation paper between cells, reduce the production cost, and improve the production yield of photovoltaic cells.

The embodiments of the present disclosure relate to the photovoltaic field and provide a photovoltaic cell and a preparation method thereof, and a photovoltaic module. The photovoltaic cell includes: a substrate having a first surface; a passivation layer located on the first surface, the passivation layer has a groove exposing the first surface, and the passivation layer has a side wall forming the groove; and a grid line extending along a first direction, the grid line is at least partially located in the groove and is in ohmic contact with a part of the first surface exposed by the groove, and a gap is formed between the grid line at least partially located in the groove and the side wall along the first direction. A material of the grid line includes a low-fire-through conductive material.

A solar cell, a method for manufacturing the same, and a photovoltaic module are provided. The solar cell includes a substrate, first and second doped parts, and first electrodes. The substrate has a first surface including first regions and second regions arranged alternatingly in a first direction. Each of the first and second doped parts is located on a corresponding first and second region, respectively and is separated from each other. Each first electrode and a third doped part are located on the corresponding first doped part. On the first doped part, the third doped part is located on at least one side of the first electrode in the first direction and is separated from the adjacent first electrode. The first doped parts are doped with dope elements different from the second doped parts and the third doped parts.

Three dimensional concave hemisphere solar structures are provided. A photovoltaic solar cell substrate has a light receiving surface and a back surface opposite the light receiving surface. The photovoltaic solar cell substrate light receiving surface has a plurality of gas filled concave hemisphere cavities having a depth and a radius of one millimeter or greater. A substantially planar transparent cover seals the plurality of gas filled concave hemisphere cavities.

The solar cell includes a substrate, multiple conductive layers and a electrode structure. Two adjacent conductive layers having opposite electric polarities are electrically insulated from each other. The electrode structure includes multiple gate electrodes and multiple gate lines. Gate electrodes with opposite electric polarities are arranged at intervals in a second direction, respective gate lines with opposite electric polarities are arranged at intervals in the first direction, and the multiple gate lines are arranged on respective conductive layers with a same electric polarity. A gate line of the multiple gate lines intersects with a gate electrode of the multiple gate electrodes that has opposite electric polarities at an intersection where the gate line is disconnected. A disconnected gate line is electrically connected by a conductive layer having the same electric polarity, and multiple insulation layers are disposed between the multiple gate electrodes and the respective conductive layers at the intersections.

Provided is a solar cell. The solar cell includes a silicon substrate, a P-type doping structure located on the back surface of the silicon substrate, an N-type doping structure located on the back surface of the silicon substrate, a spacing region located between the P-type doping structure and the N-type doping structure, a first electrode located on a back surface of the P-type doping structure, and a second electrode located on a back surface of the N-type doping structure. In a first direction, the back surface of the P-type doping structure is higher than the back surface of the N-type doping structure, and the first direction is from a front surface of the silicon substrate to the back surface of the silicon substrate. With the solar cell of the present disclosure, more carriers can be generated and successfully collected, improving a cell efficiency.