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:
Nov. 24, 2015
Filed:
Apr. 15, 2015
Applicants:
Yi Liu, Fremont, CA (US);
BO He, Albany, CA (US);
Andrew Pun, Folsom, CA (US);
Inventors:
Assignee:
The Regents of the University of California, Oakland, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D 471/22 (2006.01); C09K 3/00 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0072 (2013.01); C07D 471/22 (2013.01); H01L 51/0068 (2013.01);
Abstract
A novel electron acceptor based on bay-annulated indigo (BAI) was synthesized and used for the preparation of a series of high performance donor-acceptor small molecules and polymers. The resulting materials possess low-lying LUMO energy level and small HOMO-LUMO gaps, while their films exhibited high crystallinity upon thermal treatment, commensurate with high field effect mobilities and ambipolar transfer characteristics.