Solar World Innovations GmbH | Date: 2014-09-17
In various embodiments, a solar cell includes: a substrate with a light incidence side and a rear side and a dielectric layer on the back of the substrate. The dielectric layer includes openings, which extend through the dielectric layer towards the back of the substrate. The solar cell further includes a plurality of metal contacts which are configured in the openings; and a metal structure which is configured on the dielectric layer. The metal structure includes contact areas which are connected to the metal contacts in an electrically conducting manner. The metal structure is structured such that the dielectric layer is at least partially exposed around the metal contacts.
Solar World Innovations GmbH | Date: 2014-10-02
A solar cell includes a first dielectric layer on the shaded side of the solar cell; and a second dielectric layer on the first dielectric layer. The second dielectric layer includes Hydrogen and the Hydrogen content in the second dielectric layer is measured such that a refractive index of less than 2.0 results for the second dielectric layer.
Solar World Innovations GmbH | Date: 2015-11-16
The invention relates to bifacial solar cells and a photovoltaic module comprising several bifacial solar cells and an electrical connecting structure, through which the solar cells are electrically connected. The solar cells are configured rectangular with an aspect ratio different from one. The solar cells have a first contact grid with first contact elements on a first side and a second contact grid with second contact elements on a second side opposite the first side. The electrical connecting structure has wire guides connected to the first and second contact elements of the solar cells. The invention further relates to a process for manufacturing a photovoltaic module.
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).