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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Solution processes for fabricating an optoelectronic devices include contacting an electroluminescent layer comprising an alcohol-insoluble electroluminescent polymer with an alcoholic solution of a compound of formula Ia to form an electron transporting layer directly disposed on the electroluminescent layer; and depositing a metal cathode layer on the electron transporting layer; ##STR00001## wherein R.sup.1 is, independently at each occurrence, C.sub.1-20 hydrocarbyl; at least one of R.sup.1 is R.sup.3; R.sup.2 is independently at each occurrence hydrogen, C.sub.1-20 hydrocarbyl, C.sub.1-20 hydrocarbyloxy, C.sub.1-20 thioether, C.sub.1-20 hydrocarbylcarbonyloxy or cyano; R.sup.3 is C.sub.1-20 hydrocarbyl containing at least one S, N, O or P atom between carbon atoms; a is independently at each occurrence 0, 1 or 2; and n is 0 or 1.
Cella, James Anthony (Clifton Park, NY), Shiang, Joseph John (Niskayuna, NY)
General Electric Company (Schenectady NY)
13/ 897,653
May 20, 2013
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT [0002] This invention was made with Government support under contract number DE-FC26-05NT42343 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.