Solar cell arrangement
OwnerSteffen Keller, Peter Fath +1inventors
InventorsSteffen Keller, Peter Fath, Gerhard Willeke
Life of this patent
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Abstract
The invention relates to a solar cell arrangement consisting of series-connected solar subcells. Said solar subcells consist of a semiconductor wafer which forms a common base material for all of the solar subcells and wherein a number of recesses are provided for delimiting the individual, series-connected solar subcells. The invention is characterised in that at least some of the recesses extend from the top surface of the semiconductor wafer, through the wafer itself to the bottom surface and in that at most some bridge segments are left in continuation of the recesses as far as the wafer edge, to mechanically interconnect the solar subcells.
Claims27
Solar cell arrangement consisting of series-connected solar sub-cells each having an emitter and a base and produced from a semiconductor wafer forming a common base material for all solar sub-cells and where a number of recesses are provided for delimiting each solar sub-cell, characterized in that at least some of the recesses extend from the top surface of the semiconductor wafer to its bottom surface through the wafer itself and in continuation of the recesses as far as the wafer edge at most some bridge segments remain so as to mechanically interconnect the solar sub-cells.
Solar cell arrangement module consisting of series-connected solar sub-cells made out of one semiconductor wafer, where, within the module, solar sub-cells having at least two varying areas are provided, and wherein wafer bridge segments are provided and are configured for contact with an external component unit.
Method for producing a solar cell arrangement consisting of series-connected solar sub-cells where solar sub-cells having at least two varying areas are provided and where the bridge segments are formed as part of a contact element mounted laterally before a semiconductor wafer is cut, characterized in that the wafer at its lateral wafer edge is first provided with a contact bank and thereafter is cut while leaving the bridge segments which are at least partially encompassed by the contact bank, and/or defining the bridge segments as bridge segments provided on the contact bank while completely severing the wafer material.
Method for producing a solar cell arrangement consisting of series-connected solar sub-cells where a semiconductor wafer is disposed on a carrier substrate and is subsequently provided with continuous cuts for producing and insulating the sub-cells, the carrier substrate being configured so as to provide for an external electrical series connection of the sub-cells is achieved at the time of cutting.
Dependencies are inferred from the claim text.