University of Southern California

Universal Display Corporation

University of Michigan

Princeton University

Arnold Tamayo

Mark Edward Thompson

Peter I Djurovich

Tissa Sajoto

Jui-Yi Tsai

Stephen R Forrest

Jason Brooks

Vadim Adamovich

Bert Alleyne

Kenneth Hanson

Xiaofan Ren

Yiru Sun

Michael S Barone

Carsten Borek

Chun Lin

Robert W Walters

Xiao-Chang Charles Li

The invention provides emissive materials and organic light emitting devices using the emissive materials in an emissive layer disposed between and electrically connected to an anode and a cathode. The emissive materials include compounds with the following structure: wherein at least one of Rto Ris phenyl or substituted phenyl, and/or at least two of Rto Rthat are adjacent are part of a fluorenyl group. The emissive materials have enhanced electroluminescent efficiency and improved lifetime when incorporated into light emitting devices.

Phenyl and fluorenyl substituted phenyl-pyrazole complexes of Ir

An organic light emitting device is provided. The device has an anode, a cathode and an organic layer disposed between the anode and the cathode. The organic layer comprises a compound further comprising one or more carbene ligands coordinated to a metal center.

Luminescent compounds with carbene ligands

Certain iridium compounds which may comprise an iridium(III)-ligand complex having the general formula: (C^N)&#x2014;Ir&#x2014;(N^N). (C^N) and (N^N) may each represent a ligand coordinated to an iridium atom. The iridium compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-infrared (IR) range. Also, organic devices that use certain iridium compounds. The organic device may comprise an organic layer and the organic layer may comprise any of the iridium compounds disclosed herein. Also, organic devices that use certain metalloporphyrin compounds. The metalloporphyrin compounds may comprise a core porphyrin structure with four pyrrole rings. The metalloporphyrin compounds may have a primary phosphorescent photoluminescence peak wavelength in the near-IR range.

Near infrared emitting organic compounds and organic devices using the same

A process for preparing a compound having the formula LIrL' is provided. The process comprises: combining and L&#x2032; in the presence of an organic solvent to form a mixture, wherein L is a suitable carbene ligand precursor coordinated to Ir; and L&#x2032; is a bidentate ligand or two monodentate ligands, and L is different from L&#x2032;; Also provided is a process for preparing a compound having the formula  The process comprises: A process for preparing a compound with the formula LIr is also provided. This process comprises combining and L in the presence of alcohol and a base to form a mixture, wherein L is a bidentate ligand that may form a five-membered chelate ring.

Carbene containing metal complexes as OLEDs

A process for preparing a compound having the formula LIrL' is provided. The process comprises: combining and L&#x2032; in the presence of an organic solvent to form a mixture, wherein L is a suitable carbene ligand precursor coordinated to Ir; and L&#x2032; is a bidentate ligand or two monodentate ligands, and L is different from L&#x2032;;Also provided is a process for preparing a compound having the formula The process comprises: and L in the presence of alcohol and a base to form a mixture, wherein L is a bidentate ligand that may form a five-membered chelate ring.

Near-infrared emitting organic compounds and organic devices using the same

The present invention relates to organic light emitting devices (OLEDs), and more specifically to efficient OLEDs having electron blocking layers. The devices of the present invention comprise at least one electron blocking layer which functions to confine electrons to specific regions of the light emitting devices. The present invention also relates to materials for use as electron blockers that show increased stability when incorporated into an organic light emitting device.

Organic light emitting devices with electron blocking layers

An organic light emitting device having an anode, a cathode and an organic layer between the anode and the cathode is provided. The organic layer comprises a carbene-metal complex having the structure: 

Organometallic compounds for use in electroluminescent devices

An organic light emitting device is provided, having an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer may include the following compound: wherein The emissive layer may also include a compound having a metal bonded to at least two ligands, in which one ligand has a triplet energy corresponding to a wavelength that is at least 80 nm greater than the wavelength corresponding to the triplet energy of other ligands. Each ligand may be organometallic.

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Glendale, CA, United States of America

Arnold Tamayo