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Freiberg, Germany

In various embodiments, a single-pole switching unit for limiting the energy flow in a series circuit having photovoltaic modules by a pulsating control signal present on at least one DC line is provided. The switching unit may include: a switching element, which is designed to reduce the current flow in the at least one DC line of the photovoltaic modules; a transmission element, which is designed to couple out an electrical control signal present on the DC line and to control the switching element merely with the energy of the coupled-out control signal; and a coupling element, which is arranged in parallel with the switching element and which conducts the control signal through the switching unit when the switching element is nonconducting.


Patent
Solar World Innovations GmbH | Date: 2013-07-15

The invention relates to a method for examining a wire-sawn silicon substrate for a solar cell. The method includes irradiating the silicon substrate with an infrared radiation, detecting the infrared radiation transmitted through the silicon substrate, and analyzing the detected infrared radiation for characterizing the crystal orientation of the silicon substrate. The invention in addition relates to a device for carrying out such a method, and a method for manufacturing a solar cell.


Patent
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.


Patent
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.


Within the scope of a Silicon-wafer making, in which a silicon monocrystal seed is arranged in the bottom region of a crucible, wherein the silicon monocrystal seed has a seed surface with a {110}-crystal orientation perpendicular to the bottom region of the crucible, in which liquid high-purity silicon is solidified, starting from the seed surface of the silicon monocrystal seed, and in which the silicon block is split into Silicon-wafers in such a manner that a wafer surface has a {100}-crystal orientation, wherein the silicon monocrystal seed is manufactured from a silicon monocrystal block, the block axis of which has a [110]-spatial orientation, wherein the silicon monocrystal block is cut-off for forming the seed surface of the silicon monocrystal seed with the {110}-crystal orientation parallel to the block axis.

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