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Organic electronic devices with multiple solution-processed layers

United States Patent

9,385,348
July 5, 2016
View the Complete Patent at the US Patent & Trademark Office
A method for fabricating an organic light emitting device stack involves depositing a first conductive electrode layer over a substrate; depositing a first set of one or more organic layers, wherein at least one of the first set of organic layers is a first emissive layer and one of the first set of organic layers is deposited by a solution-based process that utilizes a first solvent; depositing a first conductive interlayer by a dry deposition process; and depositing a second set of one or more organic layers, wherein at least one of the second set of organic layers is a second emissive layer and one of the second set of organic layers is deposited by a solution-based process that utilizes a second solvent, wherein all layers that precede the layer deposited using the second solvent are insoluble in the second solvent.
Forrest; Stephen R. (Ann Arbor, MI), Lassiter; Brian E. (San Francisco, CA), Zimmerman; Jeramy D. (Golden, CO)
The Regents of the University of Michigan (Ann Arbor, MI)
14/ 817,979
20160006002
August 4, 2015
GOVERNMENT RIGHTS This invention was made with Government support from the Department of Energy under contract Nos. DE-SC0000957 and DE-SC0001013, and United States Air Force--Air Force Office of Scientific Research under contract No. FA9550-10-1-0339. The United States Government has certain rights to this invention.