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Title: Fused thiophene-based conjugated polymers and their use in optoelectronic devices

The present teachings relate to polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, and field effect transistors. The disclosed compounds generally include as repeating units at least one annulated thienyl-vinylene-thienyl (TVT) unit and at least one other pi-conjugated unit. The annulated TVT unit can be represented by the formula: ##STR00001## where Cy.sup.1 and Cy.sup.2 can be a five- or six-membered carbocyclic ring. The annulated TVT unit can be optionally substituted at any available ring atom(s), and can be covalently linked to the other pi-conjugated unit via either the thiophene rings or the carbocyclic rings Cy.sup.1 and Cy.sup.2. The other pi-conjugated unit can be a conjugated linear linker including one or more unsaturated bonds, or a conjugated cyclic linker including one or more carbocyclic and/or heterocyclic rings.
Inventors:
; ; ; ;
Issue Date:
OSTI Identifier:
1371756
Assignee:
Northwestern University DOESC
Patent Number(s):
9,711,728
Application Number:
14/884,986
Contract Number:
SC0001059
Resource Relation:
Patent File Date: 2015 Oct 16
Research Org:
Northwestern Univ., Evanston, IL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Other works cited in this record:

Organic dye used in dye-sensitized solar cell
patent-application, March 2007

Organic and inorganic photosensitizer dyes
patent-application, November 2011

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