Patent · US Active

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

US10875957B2 · kind B2 · utility

0Cited by

3References

27Claims

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	May 17, 2019
Grant date	Dec 29, 2020
Priority date	—
Expiry date	May 17, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH10K10/466
WIPO fieldMacromolecular chemistry, polymers
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.