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US 9,679,672 B2Granted
Low band gap conjugated polymeric compositions and applications thereof
AssigneeWake Forest University
InventorsNicole Levi, David L. Carroll, Christopher MacNeill, Elizabeth Graham
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Abstract
In one aspect, electrically conductive conjugated polymeric compositions are described herein demonstrating compatibility with aqueous solvents and/or phases. The ability to provide aqueous compatible compositions from previously water insoluble conjugated polymeric systems, in some embodiments, can facilitate use of such systems in a variety of aqueous applications, including biological applications.
Claims19
A composition comprising:
- an aqueous medium;
- and
- particles of at least one water insoluble conjugated copolymer dispersed in the aqueous medium, the particles having a band gap ranging from about 1.1 eV to about 1.8 eV,
- wherein the water insoluble conjugated copolymer has a donor-acceptor architecture comprising a donor monomeric species (D) and an acceptor monomeric species (A),
- wherein the donor monomeric species is a fused dithiophene of the formula
- wherein the acceptor monomeric species is a benzodiazole of the formula
- wherein R1 and R2 are selected from the group consisting of hydrogen, alkyl, alkenyl, aryl, heteroaryl, O-alkyl, O-alkenyl, and O-aryl, and
- wherein X is selected from the group consisting of oxygen, nitrogen, sulfur and selenium.
5 more elements
Dependencies are inferred from the claim text.