Universal Display Corporation

Wyeth

Pharmacopeia Inc.

Msd Oss B.v.

Merck Sharp + Dohme B.v.

N.v. Organon

Nasrin Ansari

Chuanjun Xia

Bert Alleyne

Alan Deangelis

James J Fiordeliso

Gregg Kottas

Vadim Adamovich

Zeinab M Elshenawy

Dinesh Rayabarapu

Raymond Kwong

Michael Stewart Weaver

Jason Brooks

Irina Neagu

Alexey Borisovich Dyatkin

Scott A Beers

Suman Layek

Edward Barron

Yonggang Wu

Koc-Kan Ho

Michael H Ohlmeyer

Yajing Rong

Jui-Yi Tsai

Vidyadhar Madhav Paradkar

David J Diller

Michelle Lee Morris

David Jonathan Bennett

Adolph C Bohnstedt

Celia Kingsbury

Michael J Ohlmeyer

Jui-Hsiang Chan

Andrew Stanley Edwards

Andrew Laird Roughton

Walter H Yeager

Michael Stuart Weaver

Andrew John Cooke

Paul David Ratcliffe

Alan DeAngelis

Steven G Kultgen

Andrew Roughton

Andrew Cooke

Ed Barron

Ronald Palin

Zeinab Elshenaway

Raymond C Kwong

Zeinab Eishenawy

Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission.

Heteroleptic iridium complexes as dopants

A compound of: is disclosed. In Formula III, ring B and ring C are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; A-B represents a bonded pair of carbocyclic or heterocyclic rings coordinated to a metal M via a nitrogen atom in ring A and an sphybridized atom in ring B; A-C represents a bonded pair of carbocyclic or heterocyclic rings; M is a metal having an atomic number greater than 40; L' is a monoanionic bidentate ligand; m is the oxidation state of the metal M; and n is at least 1.

Organic electroluminescent materials and devices

Organometallic compounds comprising an imidazole carbene ligand having a N-containing ring fused to the imidazole ring are provided. In particular, the N-containing ring fused to the imidazole ring may contain one nitrogen atom or more than one nitrogen atom. These compounds may demonstrate high photoluminescent (PL) efficiency, Gaussian emission spectra, and/or short excited state lifetimes. These materials may be especially useful as blue phosphorescent emitters.

A compound of: is disclosed. In Formula IV, ring B and ring C are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; A-B represents a bonded pair of carbocyclic or heterocyclic rings coordinated to a metal M via a nitrogen atom in ring A and an sphybridized atom in ring B; A-C represents a bonded pair of carbocyclic or heterocyclic rings; M is a metal having an atomic number greater than 40; L' is a monoanionic bidentate ligand; m is the oxidation state of the metal M; and n is at least 1.

An OLED containing an emissive dopant that is a heteroleptic complex having the formula Ir(L)(L) is disclosed. In the formula, Lis and Lcan be selected from 

Methods of making novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing.

Novel heteroleptic iridium complexes are described. These iridium compounds contain alkyl substituted phenylpyridine ligands, which provide these compounds with beneficial properties when the iridium complexes are incorporated into OLED devices.

Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl.

Organic electroluminescent material and devices

Novel phosphorescent platinum complexes containing tetradentate ligands are provided. The disclosed compounds have three 6-membered metallocycle units in each tertadentate ligand. The disclosed compounds have desirable electronic properties that make them useful when incorporated into a variety of OLED devices.

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Monmouth Junction, NJ, United States of America

Nasrin Ansari