Abstract: A bifacial photovoltaic module with at least one bifacial solar cell is provided. The at least one bifacial solar cell includes a substrate with a front-side and a rear-side. The front-side is the light incident side and the rear-side has rear-side contact structure. The rear-side contact structure includes a plurality of electrically conductive contact fingers, which have a first metal, a plurality of solder pads electrically connected to the contact fingers. The solder pads have a top. The solder pads have a second metal, which is different from the first metal. The rear-side contact structure further includes several cell connectors electrically connected to the solder pads. The top of the solder pads is free from the contact fingers in an area along one direction. The cell connectors are disposed planar on or above this area.

Abstract: Various embodiments are related to an arrangement of a plurality of photovoltaic modules. Each photovoltaic module has a light receiving front side and a light receiving back side. The photovoltaic modules of the plurality of photovoltaic modules are arranged in one or more rows to form photovoltaic module rows. One or more photovoltaic module rows are extended substantially in a direction of around North-South and the front sides of the photovoltaic modules of the one or more photovoltaic module rows are sloped substantially in a direction of predominantly North or South. The arrangement further has a plurality of mounting members. Each mounting member defines a space between respective two photovoltaic modules in one photovoltaic module row that are mechanically connected with the respective mounting member. Each mounting member of the plurality of mounting members has a bottom part; a long leg; and a short leg. The long leg and the short leg respectively extend upwards from an end of the bottom part.

Abstract: In various embodiments, a photovoltaic module is provided. The photovoltaic module may include a plurality of electrically coupled photovoltaic cell, the photovoltaic cells being arranged next to each other such that a cell gap is formed between the photovoltaic cells in each case, a transparent front cover and a transparent rear cover between which the photovoltaic cells are arranged, a marginal gap being formed between the edge of the covers and the photovoltaic cells directly adjacent thereto, and at the back of the cell, a structure which at least partially covers at least one of a cell gap or a marginal gap, the structure having a decreasing coverage in the direction of a respective photovoltaic cell.

Abstract: Various embodiments are related to an arrangement of a plurality of photovoltaic modules. Each photovoltaic module has a light receiving front side and a light receiving back side. The photovoltaic modules of the plurality of photovoltaic modules are arranged in one or more rows to form photovoltaic module rows. One or more photovoltaic module rows are extended substantially in a direction of around North-South and the front sides of the photovoltaic modules of the one or more photovoltaic module rows are sloped substantially in a direction of predominantly North or South. The arrangement further has a plurality of mounting members. Each mounting member defines a space between respective two photovoltaic modules in one photovoltaic module row that are mechanically connected with the respective mounting member. Each mounting member of the plurality of mounting members has a bottom part; a long leg; and a short leg. The long leg and the short leg respectively extend upwards from an end of the bottom part.

Abstract: A bifacial photovoltaic module with at least one bifacial solar cell is provided. The at least one bifacial solar cell includes a substrate with a front-side and a rear-side. The front-side is the light incident side and the rear-side has rear-side contact structure. The rear-side contact structure includes a plurality of electrically conductive contact fingers, which have a first metal, a plurality of solder pads electrically connected to the contact fingers. The solder pads have a top. The solder pads have a second metal, which is different from the first metal. The rear-side contact structure further includes several cell connectors electrically connected to the solder pads. The top of the solder pads is free from the contact fingers in an area along one direction. The cell connectors are disposed planar on or above this area.

Abstract: A Solar module, particularly hybrid photovoltaic solar hot water module, having at least two adjoining solar cells, which are configured at least partially bifacial and are embedded into a transparent laminate, wherein the laminate has a laminate rear-side on which a structure for guiding a heat transfer medium is provided, wherein a first section of the structure facing the laminate rear-side has a reflecting surface and is disposed to reflect the incidental light on the solar module, which does not directly strike the solar cells.

Abstract: In various embodiments, a solar cell screen-printing composition is provided, comprising aluminum; and silicon; the percentage by mass of silicon lying in a range from 5% to 95% of the sum of the percentages by mass of silicon and aluminum.

Abstract: In various embodiments, a photovoltaic module may include: a plurality of photovoltaic cells, at least one photovoltaic cell of the number of photovoltaic cells comprising: a first plurality of contact wires on a front of the photovoltaic cell; and a second plurality of contact wires on a rear of the photovoltaic cell. The first plurality of contact wires and the second plurality of contact wires may be arranged offset with respect to one another.

Abstract: For contacting a silicon solar cell a pre-processed silicon substrate with a frontside and a backside is provided. Then, aluminum is deposited on the backside of the pre-processed silicon substrate, wherein aluminum-free regions remain on the backside. Then, a silver-free layer suitable for soldering on the backside of the silicon substrate is deposited so that the silver-free layer suitable for soldering covers at least the aluminum-free regions on the backside.

Abstract: A method for contacting and connecting solar cells, according to which at least one electrode is formed by at least one wire conductor, and including the following steps: positioning a continuous wire conductor so that the continuous wire conductor extends across a plurality of solar cells, interrupting the electrodes at the positions required for the connection, and contacting the solar cells and electrodes.

Abstract: An electrode for electrically connecting two photovoltaic cells is provided. Each photovoltaic cell may include a plurality of lamellar electrically conductive surface regions. The electrode may include a plurality of electrically conductive wires extending adjacent to one other; and a stabilizing structure coupled to the plurality of electrically conductive wires such that the space between the electrically conductive wires to one another is defined until the plurality of electrically conductive wires has been fixed on the plurality of lamellar electrically conductive surface regions of a photovoltaic cell.

Abstract: In different embodiments, a method is provided for processing at least one crystalline Silicon-wafer or a Solar-cell wafer. The method may include: a movement of the wafer with respect to a laser producing a laser beam; and therefore the formation of a laser channel in the wafer by means of a laser beam, wherein a thermal budget applied on the wafer by means of the laser beam is reduced in the peripheral region of the wafer, wherein the peripheral region includes a wafer edge, through which the laser beam exits the wafer after formation of the laser channel.

Abstract: In various embodiments, a method for fitting contact wires to a surface of a photovoltaic cell is provided. The method may include: feeding the contact wires to a contact wire positioning and placement device, wherein the contact wire positioning and placement device comprises a plurality of nozzles or eyes, wherein at least one contact wire is in each case passed through a respective nozzle or eye, for positioning and placement thereof onto the surface of the photovoltaic cell; positioning and placing the contact wires on the surface of the photovoltaic cell by means of the contact wire positioning and placement device; and attaching the contact wires to the surface of the photovoltaic cell.

Abstract: A photovoltaic module has a number of solar cells, which respectively include a contact structure on a pre-processed silicon wafer, which has a number of linear contact fingers disposed in parallel in a first direction and at least one bus bar disposed perpendicular to the first direction. The bus bar extends over the contact finger in a second direction and has a respective contact surface in the region of the contact finger, which protrudes above the contact finger in the second direction and is electrically connected to the contact fingers. At least one cell connector is provided for connecting the solar cells, which extends over the bus bar of at least one solar cell and is electrically connected to the contact surfaces of the bus bar, wherein the width of the cell connector is smaller than the length of the contact surface in the first direction.

Abstract: In different embodiments, a method is provided for processing at least one crystalline Silicon-wafer or a Solar-cell wafer. The method may include: a movement of the wafer with respect to a laser producing a laser beam; and therefore the formation of a laser channel in the wafer by means of a laser beam, wherein a thermal budget applied on the wafer by means of the laser beam is reduced in the peripheral region of the wafer, wherein the peripheral region includes a wafer edge, through which the laser beam exits the wafer after formation of the laser channel.

Abstract: A semiconductor component, especially a solar cell comprises a semiconductor substrate of a planar design having a first side and a second side lying opposite thereto, at least one contact structure arranged on at least one side of the semiconductor substrate, the at least one contact structure exhibiting a diffusion barrier to prevent the diffusion of ions from the contact structure into the semiconductor substrate.

Abstract: A semiconductor component, in particular in the form of a solar cell, comprises a two-dimensional semiconductor substrate with a first side, a second side which is arranged opposite thereto, a surface normal which is perpendicular to said first and second sides, and a plurality of recesses which are at least arranged on the second side and extend in the direction of the surface normal, at least one dielectric passivation layer which is arranged on the second side, an electrically conducting contact layer arranged on the passivation layer, a plurality of contact elements for electrically connecting the contact layer with the semiconductor substrate, which contact elements are electrically conductive, are in electrically conducting connection with both the semiconductor substrate and with the contact layer, fill at least 50%, in particular at least 90%, preferably 100% of in each case one of the recesses, project beyond the recesses with a projection in the direction perpendicular to the surface normal and are

Abstract: In various embodiments, a solar cell connector electrode may include a multiplicity of electrically conductive solar cell connector elements arranged alongside one another; and a plurality of electrically non-conductive and isolated from one another, planar elements on which the electrically conductive solar cell connector elements are arranged. Solar cell connector element isolating locations are provided in regions on the planar elements, such that, by means of a respective solar cell connector element isolating location, a respectively electrically conductive solar cell connector element is divided into a plurality of, preferably two, solar cell connector partial elements electrically isolated from one another.

Abstract: For contacting a silicon solar cell a pre-processed silicon substrate with a frontside and a backside is provided. Then, aluminum is deposited on the backside of the pre-processed silicon substrate, wherein aluminum-free regions remain on the backside. Then, a silver-free layer suitable for soldering on the backside of the silicon substrate is deposited so that the silver-free layer suitable for soldering covers at least the aluminum-free regions on the backside.

Abstract: In various embodiments, a solar cell is provided. The solar cell may include a base region doped with dopant of a first doping type; an emitter region doped with dopant of a second doping type, wherein the second doping type is opposite to the first doping type; a plurality of regions in the emitter region having an increased dopant concentration of the second doping type compared with the emitter region; and a plurality of metallic soldering pads, wherein each soldering pad is at least partially arranged on a region having an increased dopant concentration.