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:
Jul. 15, 2014
Filed:
Sep. 17, 2010
Karsten Otte, Leipzig, DE;
Alexander Braun, Markkleeberg, DE;
Steffen Ragnow, Leipzig, DE;
Andreas Rahm, Leipzig, DE;
Christian Scheit, Leipzig, DE;
Karsten Otte, Leipzig, DE;
Alexander Braun, Markkleeberg, DE;
Steffen Ragnow, Leipzig, DE;
Andreas Rahm, Leipzig, DE;
Christian Scheit, Leipzig, DE;
Solarion AG Photovoltaik, Leipzig, DE;
Abstract
The invention relates to a serial connection of thin layer solar cells. The invention provides a structuring method for creating a reliable and effective connections, preventing short-circuits and enlarging usable solar cell surfaces. The solar cells comprise a substrate, a back contact layer, an absorber layer, a buffer layer, and a transparent front contact layer. Each solar cell is subdivided by three trenches A, B, C to create a plurality of adjacent cell segments. Trenches A and B extend down to the back contact layer, trench C extends down to the substrate. Trench C is filled with electrically insulating paste and trench B is filled with electrically conducting paste. The electrically conducting paste also covers trench C. The adjacent cell segments are electrically connected. Trench A is then created and filled with electrically insulating paste.