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:
Aug. 11, 2015
Filed:
May. 14, 2012
Yanyan Cao, Wilmington, DE (US);
Jonathan V Caspar, Wilmington, DE (US);
Michael S Denny, Jr., Springfield, PA (US);
Lynda Kaye Johnson, Wilmington, DE (US);
Meijun LU, Hockessin, DE (US);
Daniela Rodica Radu, West Grove, PA (US);
Yanyan Cao, Wilmington, DE (US);
Jonathan V Caspar, Wilmington, DE (US);
Michael S Denny, Jr., Springfield, PA (US);
Lynda Kaye Johnson, Wilmington, DE (US);
Meijun Lu, Hockessin, DE (US);
Daniela Rodica Radu, West Grove, PA (US);
E I DU PONT DE NEMOURS AND COMPANY, Wilmington, DE (US);
Abstract
The present invention relates to coated binary and ternary chalcogenide nanoparticle compositions that can be used as copper zinc tin chalcogenide precursor inks. In addition, this invention relates to coated substrates comprising binary and ternary chalcogenide nanoparticle compositions and provides processes for manufacturing these coated substrates. This invention also relates to compositions of copper zinc tin chalcogenide thin films and photovoltaic cells comprising such films. In addition, this invention provides processes for manufacturing copper zinc tin chalcogenide thin films, as well as processes for manufacturing photovoltaic cells incorporating such films.