Patent · US Active

Fluorine substitution influence on benzo[2,1,3]thiodiazole based polymers for field-effect transistor applications

US10487173B2 · kind B2 · utility

0Cited by

4References

21Claims

0Family size

Assignee

The Regents of the University of California · US

Inventors

Ming Wang · Goleta, US
Guillermo C. Bazan · Lompoc, US

Key dates

Filing date	Jun 6, 2018
Grant date	Nov 26, 2019
Priority date	—
Expiry date	Jun 6, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2261/92
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Four conjugated copolymers with a donor/acceptor architecture including 4,4-dihexadecyl-4H-cyclopenta[1,2-b:5,4-b′]dithiophene as the donor structural unit and benzo[2,1,3]thiodiazole fragments with varying degrees of fluorination have been synthesized and characterized. It has been shown that the HOMO levels were decreased after the fluorine substitution. The field-effect charge carrier mobility was similar for all polymers with less than an order of magnitude difference between different acceptor units.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.