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OLED devices

United States Patent

7,893,430
February 22, 2011
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
An OLED device having an emission layer formed of an ambipolar phosphine oxide host material and a dopant, a hole transport layer in electrical communication with an anode, an electron transport layer in communication with a cathode, wherein the HOMO energy of the hole transport layer is substantially the same as the HOMO energy of the ambipolar host in the emission layer, and the LUMO energy of the electron transport layer is substantially the same as the LUMO energy of the ambipolar host in the emission layer.
Sapochak; Linda Susan (Arlington, VA), Burrows; Paul Edward (Kennewick, WA), Bimalchandra; Asanga (Richland, WA)
Battelle Memorial Institute (Richland, WA)
12/ 380,315
20100213443
February 26, 2009
The invention was made with Government support under Contract DE-AC0676RLO 1830, awarded by the U.S. Department of Energy. The Government has certain rights in the invention.