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Conjugated polymers and their use in optoelectronic devices

United States Patent

9,472,764
October 18, 2016
View the Complete Patent at the US Patent & Trademark Office
The present invention relates to certain 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 present compounds can provide improved device performance, for example, as measured by power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The present compounds can have good solubility in common solvents enabling device fabrication via solution processes.
Marks; Tobin J. (Evanston, IL), Guo; Xugang (Evanston, IL), Zhou; Nanjia (Chicago, IL), Chang; Robert P. H. (Glenview, IL), Drees; Martin (Glenview, IL), Facchetti; Antonio (Chicago, IL)
Northwestern University (Evanston, IL), Polyera Corporation (Skokie, IL)
13/ 844,725
20150357590
March 15, 2013
STATEMENT OF GOVERNMENT INTEREST This invention was made with government support under SC0001059 awarded by the Department of Energy, FA9550-08-1-0331 awarded by the Air Force Office of Scientific Research, and DMR1121262 awarded by the National Science Foundation. The government has certain rights in the invention.