Solar World Innovations GmbH | Date: 2016-04-14
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.
Solar World Innovations GmbH | Date: 2016-11-24
According to various embodiments, a particle containing structured solder material is provided as solder material for joining a solar cell connector with a solar cell. That is why for example, the light incident on the solder material is reflected diffusely and thus partially delivered back to the solar cell, whereby the light captured by the solar cell is increased. Less of the solar cell surface is shadowed based on the solder material or the solar cell connector.
Solar World Innovations GmbH | Date: 2016-11-30
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.
Solar World Innovations GmbH | Date: 2016-02-09
Solar cell including a semiconductor substrate with a first and second side, a first contact structure disposed in the region of the first side of the semiconductor substrate and contacting the semiconductor substrate, a passivation layer with openings disposed on the second side of the semiconductor substrate, and a second contact structure disposed on the passivation layer, which locally contacts the semiconductor substrate through the openings of the passivation layer, wherein the first contact structure has a strip-shaped connection element and contact fingers connected to the connection element, and wherein the passivation layer has an openings-free region extending along the connection element in a region under the strip-shaped connection element of the first contact structure.
Solar World Innovations GmbH | Date: 2016-05-03
In various embodiments, a photovoltaic cell is provided. The photovoltaic cell may include a substrate with a front-side and a rear-side, an emitter area on the front-side of the substrate, and a metallization on the rear-side of the substrate. The area percentage of the metallization in middle area of the substrate is greater than in a border area, which at least partially surrounds the middle area.
Solar World Innovations GmbH | Date: 2016-05-13
A solar cell includes a silicon substrate with a front-side and a rear-side; a dielectric layer structure on the rear-side of the silicon substrate, wherein the dielectric layer structure includes a plurality of through openings by means of which the rear-side of the silicon substrate is exposed; a printed Aluminum-containing metallization layer on the dielectric layer structure on the rear-side of the silicon substrate and at least partially in the through openings for electrically contacting the rear-side of the silicon substrate; wherein the Aluminum-containing metallization includes a lower layer thickness in a first area than in a second area, or the first area is free from the Aluminum-containing metallization; wherein at least one through opening of the plurality of through openings is at least partially disposed in the first area or borders on the first area or has a distance from the first area of less than 500 m.
Solar World Innovations GmbH | Date: 2016-06-03
A solar cell array is made of a plurality of bifacial PERC solar cells, respectively formed in a semiconductor body, which are electrically interconnected by way of cell connectors. A structured passivation layer is applied on the rear-side surface of the semiconductor body, on which the current collecting rails and contact finger contacting the semiconductor body are provided. A respective cell connector extends at least partially along a longitudinal direction of at least one current collecting rail and electrically contacts this on at least one solder contact via a solder joint. A lateral width of a current collecting rail is at least partially greater than a lateral width of the cell connector covering this current collecting rail.
Solar World Innovations GmbH | Date: 2016-04-27
The present invention relates to a process for encapsulating one or more solar cell(s) in a polymer matrix, said process comprising: (a) applying a matrix composition comprising at least one polymerizable compound to the surface of a first solid carrier material, the matrix composition being a structurally viscous liquid having a yield point; (b) placing the one or more solar cell(s) onto the matrix composition applied to the surface of the first carrier material; (c) applying the matrix composition to the surface of the solar cell; (d) placing a second solid carrier material onto the matrix composition applied to the surface of the solar cell; (e) pressing the structure composed of solar cell, matrix composition, and first and second carrier materials, such that the one or more solar cell(s) is/are surrounded by a continuous layer of matrix composition; and (f) polymerizing the matrix composition in order to form the polymer matrix, and to the use of this process for producing solar modules and to the solar modules obtainable by means of this process.
Solar World Innovations GmbH | Date: 2015-04-15
In various embodiments, a solar cell is provided, comprising: a substrate with a front-side and a rear-side, wherein at least the front-side receives light; a passivation layer on the rear-side of the substrate; local contact openings, which pass through the passivation layer and partially expose the rear-side of the substrate; and a first rear-side metallization on the passivation layer and in the local contact openings; wherein the plurality of the local contact openings are disposed such that they are completely covered by the first rear-side metallization.
Solar World Innovations GmbH | Date: 2015-11-20
A solar cell with a semiconductor body and with a contact layout for electrically connecting a surface of the semiconductor body, including: a plurality of current collecting contact fingers, which are disposed substantially parallel to each other, wherein the contact finger respectively has a line resistance of at least 100 /m, a plurality of busbars, which are electrically connected to the contact fingers, and at least one cell connector continuously connecting the busbar, wherein the contact fingers and the busbar are dimensioned, particularly in terms of the material properties thereof, layout on the semiconductor body thereof, width and layer thickness thereof, that the contact layout has a series resistance of maximum 1 cm^(2).