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Method of making organic light emitting devices

United States Patent

7,910,386
March 22, 2011
View the Complete Patent at the US Patent & Trademark Office
The present invention provides a method for the preparation of organic light-emitting devices comprising a bilayer structure made by forming a first film layer comprising an electroactive material and an INP precursor material, and exposing the first film layer to a radiation source under an inert atmosphere to generate an interpenetrating network polymer composition comprising the electroactive material. At least one additional layer is disposed on the reacted first film layer to complete the bilayer structure. The bilayer structure is comprised within an organic light-emitting device comprising standard features such as electrodes and optionally one or more additional layers serving as a bipolar emission layer, a hole injection layer, an electron injection layer, an electron transport layer, a hole transport layer, exciton-hole transporting layer, exciton-electron transporting layer, a hole transporting emission layer, or an electron transporting emission layer.
Shiang; Joseph John (Niskayuna, NY), Janora; Kevin Henry (Schenectady, NY), Parthasarathy; Gautam (Saratoga Springs, NY), Cella; James Anthony (Clifton Park, NY), Chichak; Kelly Scott (Clifton Park, NY)
General Electric Company (Niskayuna, NY)
11/ 637,582
20080026496
December 12, 2006
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH & DEVELOPMENT This invention was made with Government support under contract number DEFC2605NT42343 awarded by Department of Energy. The Government has certain rights in the invention.