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. 26, 2014
Filed:
Feb. 29, 2008
Darin W. Laird, Pittsburgh, PA (US);
Reza Stegamat, Blawnox, PA (US);
Henning Richter, Newton, MA (US);
Viktor Vejins, Concord, MA (US);
Larry Scott, Newton, MA (US);
Thomas A. Lada, Park Westwood, MA (US);
Malika Daadi, Blawnox, PA (US);
Darin W. Laird, Pittsburgh, PA (US);
Reza Stegamat, Blawnox, PA (US);
Henning Richter, Newton, MA (US);
Viktor Vejins, Concord, MA (US);
Larry Scott, Newton, MA (US);
Thomas A. Lada, Park Westwood, MA (US);
Solvay USA, Inc., Cranbury, NJ (US);
Nano-C, Inc., Westwood, MA (US);
Abstract
Photovoltaic cells comprising an active layer comprising, as p-type material, conjugated polymers such as polythiophene and regioregular polythiophene, and as n-type material at least one fullerene derivative. The fullerene derivative can be C60, C70, or C84. The fullerene also can be functionalized with indene groups. Improved efficiency can be achieved.