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. 01, 2021
Filed:
Apr. 07, 2017
Meyer Burger (Germany) Gmbh, Hohenstein-Ernstthal, DE;
Giuseppe Citarella, Chemnitz, DE;
Hans-Peter Sperlich, Dresden, DE;
Gunnar Koehler, Ehrenfriedersdorf, DE;
Frank Wuensch, Berlin, DE;
Detlef Sontag, Waldenburg, DE;
Heiko Mehlich, Chemnitz, DE;
Marcel Koenig, Chemnitz, DE;
Pierre Papet, Hauterive, CH;
Meyer Burger (Germany) GmbH, Hohenstein-Ernstthal, DE;
Abstract
A solar cell with a heterojunction is produced. A first amorphous nano- and/or microcrystalline semiconductor layer is formed on the front face of a crystalline semiconductor substrate to form front face emitter or a front face surface field layer. A second such layer is formed on the rear face of the substrate to form a rear face surface field layer or a rear face emitter. Electrically conductive, transparent front face and rear face electrode layers and a frontal metallic contact layer grid structure are formed. Surface selective frontal PECVD deposition forms an electrically non-conductive, transparent dielectric front face cover layer and with such a thickness to form a closed layer directly on deposition, without additional heat and/or chemical treatment, only on the areas surrounding the frontal contact layer grid structure but not on the frontal contact layer grid structure. Finally, a rear face metallization is formed.