IP Library › Granted Patent US 9,315,671
Granted Patent B2
US 9,315,671 · App. 14/942,775 · Granted Apr 19, 2016

Bay-annulated indigo (BAI) as an excellent electron accepting building block for high performance organic semiconductors

Inventors: Yi Liu (Fremont, CA); Bo He (Albany, CA); Andrew Pun (Folsom, CA)
Assignee: The Regents of the University of California
C09B7/02H01L51/0068H01L51/0072H01L51/0074H01L51/0094H01L51/0558
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Quick Facts
Patent No.
US 9,315,671
App. No.
14/942,775
Granted
Apr 19, 2016
Kind
B2
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.

Claims (3)

1. A composition compound comprising of the formula:

wherein x, y=F, Cl, Br, I,

and R=-Alkyl, -OAlkyl, -SAlkyl, Z=—CR 2 , NR, —SiR 2 , —CR═CR—.

Assignments (2)
CONFIRMATORY LICENSE Recorded Apr 6, 2016
From: REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE
To: ENERGY, UNITED STATES DEPARTMENT OF
Reel/Frame 038364/0377 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2016
From: LIU, YI; HE, BO; PUN, ANDREW
To: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Reel/Frame 037434/0548 →
Continuity (3)
Division 14687059 · Apr 15, 2015
Provisional Application 61981043 · Apr 17, 2014
Related Publication 20160075878A1 · Mar 17, 2016