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Polymer and small molecule based hybrid light source

United States Patent

March 16, 2010
View the Complete Patent at the US Patent & Trademark Office
An organic electroluminescent device, includes: a substrate; a hole-injecting electrode (anode) coated over the substrate; a hole injection layer coated over the anode; a hole transporting layer coated over the hole injection layer; a polymer based light emitting layer, coated over the hole transporting layer; a small molecule based light emitting layer, thermally evaporated over the polymer based light emitting layer; and an electron-injecting electrode (cathode) deposited over the electroluminescent polymer layer.
Choong; Vi-En (Carlsbad, CA), Choulis; Stelios (Nuremberg, DE), Krummacher; Benjamin Claus (Regensburg, DE), Mathai; Mathew (Monroeville, PA), So; Franky (Gainesville, FL)
Osram Opto Semiconductors GmbH (Regensburg, DE)
11/ 294,904
December 5, 2005
GOVERNMENT RIGHTS This invention was made with Government support under Contract No. DE-FC26-04NT41947 awarded by the Department of Energy. The Government may have certain rights in the invention.