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. 02, 2020
Filed:
Aug. 21, 2019
Flisom Ag, Niederhasli, CH;
Patrick Reinhard, Zurich, CH;
Fabian Pianezzi, Altdorf, CH;
Benjamin Bissig, Altdorf, CH;
Stephan Buecheler, Dachsberg, DE;
Ayodhya Nath Tiwari, Meilen, CH;
Abstract
A method () for fabricating thin-film optoelectronic devices (), the method comprising: providing a substrate (), forming a back-contact layer (); forming at least one absorber layer () made of an ABC chalcogenide material, adding at least one alkali metal (), and forming at least one cavity () at the surface of the absorber layer wherein forming of said at least one cavity is by dissolving away from said surface of the absorber layer at least one crystal aggregate comprising at least one alkali crystal comprising at least one alkali metal. The method () is advantageous for more environmentally-friendly production of photovoltaic devices () on flexible substrates with high photovoltaic conversion efficiency and faster production rate.