The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2026
Filed:
Feb. 19, 2024
Hanwha Q Cells Gmbh, Bitterfeld-Wolfen, DE;
Ce Cell Engineering Gmbh, Kabelsketal, DE;
Florian Stenzel, Bitterfeld-Wolfen, DE;
Ansgar Mette, Bitterfeld-Wolfen, DE;
Stefan Hoernlein, Bitterfeld-Wolfen, DE;
Martin Schaper, Bitterfeld-Wolfen, DE;
Axel Schwabedissen, Bitterfeld-Wolfen, DE;
Janko Cieslak, Bitterfeld-Wolfen, DE;
Eckehard Hofmueller, Kabelsketal, DE;
Stefan Stoeckel, Kabelsketal, DE;
Eve Krassowski, Kabelsketal, DE;
Hanwha Q Cells GmbH, Bitterfeld-Wolfen, DE;
CE Cell Engineering GmbH, Kabelsketal, DE;
Abstract
A method for improving contact resistance of a multi-junction solar cell having a front and a back and multiple subcells, including: a) delivering the solar cell with front and back contacts in grid, strip or transparent form; b) contact-connecting one region of the back contact to a contact device connected to one pole of a voltage source, and the front contact or another region of the back contact, which is electrically insulated from the region, to another contact device, which is connected to the other pole of the voltage source; c) applying a voltage against the forward direction of the solar cell to the contacts, the voltage smaller than a solar cell breakdown voltage; d) guiding a point light source over the solar cell, a subregion of the front or back being illuminated, inducing current in the subregion, and illuminating the subregion with light beams of different wavelengths.