Embodiments of the present disclosure provide a solar cell and a photovoltaic module. The solar cell includes a substrate, a tunneling dielectric layer formed on the substrate, a doped conductive layer formed on the tunneling dielectric layer, at least one conductive connection structure, a passivation layer over the doped conductive layer and the at least one conductive connection structure, and a plurality of finger electrodes. The doped conductive layer has a plurality of protrusions arranged along a first direction, each protrusion extends along a second direction perpendicular to the first direction. The at least one conductive connection structure is formed between two adjacent protrusions and connected with sidewalls of the two adjacent protrusions. Each finger electrode of the plurality of finger electrodes extends along the second direction to penetrate the passivation layer and connect to a respective protrusion.

A solar cell is provided, including: a substrate including a center region and edge regions respectively arranged on two opposing sides of the center region, fingers arranged at intervals along the first direction and extending along a second direction, pad groups arranged at intervals along the second direction, and busbars arranged at intervals along the second direction. The fingers including a number of fingers in the center region, each pad group includes pads arranged at intervals along the first direction, and the pads include a number of pads in the center region that are respectively connected to the number of fingers in the center region. Each busbar is connected to a respective pad group of some of the pad groups, and at least one pad group is disposed between two adjacent busbars.

An electrode structure, a solar cell, and a photovoltaic module are provided. The electrode structure includes: busbars extending along a first direction and each including two sub-busbars arranged opposite to each other along a second direction intersecting with the first direction, each of the sub-busbars includes first sub-portions and second sub-portions that are spaced at intervals; fingers extending along the second direction and arranged at two sides of the busbars, the fingers are connected to the sub-busbars; and electrode pads sandwiched between the first sub-portions of the two sub-busbars and connected to the first sub-portions, the first sub-portion of at least one of the sub-busbars protrude towards a side away from the electrode pads.

The present application relates to a back-contact solar cell, a preparation method thereof, and a photovoltaic module. The back-contact solar cell includes a substrate, a first emitter structure disposed on a first surface of the substrate, and a second emitter structure disposed on the first surface of the substrate. The doping type of the first emitter structure is opposite to the doping type of the second emitter structure. The first emitter structure and the second emitter structure are alternately disposed and spaced apart from each other in a first preset direction. An insulative isolating groove is defined between the first emitter structure and the second emitter structure that are adjacent to each other. The back-contact solar cell further includes a marking structure disposed in the insulative isolating groove and spaced apart from both the first emitter structure and the second emitter structure.

A string of solar cells is disclosed. The sides of the solar cells have a corrugated shape which forms an opening when the solar cells are arranged in a shingled manner. The solar cells are electrically connected in series by a ribbon that passes through the opening. A wire mesh used to decrease solar cell resistance is also disclosed.

A solar cell includes: a first surface, a second surface, a first side surface and a second side surface; wherein first electrode strips are provided on the first surface, and second electrode strips are provided on the second surface; the first electrode strips include first discontinuous electrodes, each including at least two first electrode segments, and the second electrode strips include second discontinuous electrodes, each including at least two second electrode segments; and the first electrode segments include a first end electrode segment adjacent to the first side surface, the second electrode segments include a second end electrode segment adjacent to the first side surface, and a length of the first end electrode segment is different from a length of the second end electrode segment.

A display device may include: a base layer including a display area and a non-display area; and a plurality of pixels provided on the display area, and each including a plurality of sub-pixels. Each of the sub-pixels may include a pixel circuit layer, and a display element layer including an emission area formed to emit light, and a non-emission area provided around a perimeter of the emission area. The display element layer may include: a partition wall provided on the emission area of each of the sub-pixels; a bank provided on the non-emission area of each sub-pixel, and disposed on a surface equal to a surface on which the partition wall is disposed; a first electrode and a second electrode provided on the partition wall and spaced apart from each other; and at least one light emitting element provided between the first and second electrodes in the emission area of each sub-pixel, and configured to emit the light.

In the technical field of solar panel (1) manufacturing, a method is proposed for cross-connecting a solar cell array (2) of crystalline solar cells (3), in which at least one cross-connector (4, 9) of electrically conductive adhesive tape (5, 7) is used for cross-connection.

Disclosed are a solar cell and a photovoltaic module. In the solar cell, first and second conductive doped portions are arranged in an edge region of a first surface of a substrate. Each first conductive doped portion includes a first doped portion and second doped portions disposed on two opposite sides of the first doped portion, and a dopant concentration of the first doped portion is greater than that of the second doped portions. A passivation layer is disposed on the first surface. The second edge fingers are disposed on the second conductive doped portions respectively. Each first edge finger includes a first sub-finger and a second sub-finger, disposed on the second doped portions respectively. The second sub-finger is connected to the first sub-finger via the first doped portion. An edge busbar disposed on the passivation layer and on the first doped portion is connected to the second edge fingers.

Disclosed is a sliced cell photovoltaic module, comprising one or more cell units connected in series, wherein each cell unit comprises one cell string sequence or a plurality of cell string sequences connected in series or in parallel; each cell string sequence comprises one cell string or a plurality of cell strings connected in parallel by means of a bus bar; and each cell string comprises a plurality of small cell slices connected in series by means of connection materials; the spacing between the plurality of small cell slices is 2 to 5 mm, wherein each small cell slice is one of 2-8 independent small cell slices obtained by means of laser cutting a solar cell with a size of 156*156 to 300*300, etc.; each small cell slice has a positive electrode and a back electrode; and the positions of each positive electrode and each back electrode are superposed with each other or are respectively at the edges of two ends of the small cell slice. According to the photovoltaic module of the present application, the module power is greatly improved, and a sharp increase in a short-circuit current of the module cannot be caused, such that the power loss cannot be increased, and a potential failure risk, caused by an increase in a rated current of a junction box, of the module can also be avoided.