Sumitomo Chemical Company, Limited

Cambridge Display Technology Limited

Sumitomo Chemical Companylimited

William Tarran

Martin Humphries

Kiran Timothy Kamtekar

Nazrul Islam

James Lee

Matthew Roberts

Ruth Pegington

Michael Cass

David Mohamad

Florence Bourcet

Natasha M Conway

Rui Ishikawa

Simon King

Jean-Benoit Giguere

Philip Stackhouse

Timothy Kiran Kamtekar

Compound A compound of formula (I): (I) wherein Rand Rare each independently a linear, branched or cyclic Calkyl group; and Arand Arare each independently an aromatic or heteroaromatic group which is unsubstituted or substituted with one or more substituents. The compound may be used in n-doping of an organic semiconductor. Such an n-doped organic semiconductor may be used in an organic electronic device, for example an electron injection layer of an organic light-emitting device.

Compound

A light-emitting polymer comprising a light-emitting repeat unit in a backbone of the polymer, wherein the polymer has an anisotropy of no more than 0.8 and wherein a transition dipole moment of the light-emitting repeat unit is aligned with the polymer backbone.

Organic light emitting polymer comprising light-emitting repeat unit in backbone of polymer and device therewith

A compound of formula (I): (Formula (I)) wherein Ar, Arand Arindependently in each occurrence is a Caryl group or a 5-20 membered heteroaryl group which is unsubstituted or substituted with one or more substituents; X, Xand Xin each occurrence is independently a direct bond or a group of formula &#x2014;C(R)&#x2014; wherein Rin each occurrence is independently H or a substituent. The compound of formula (I) may be used to form an n-dopant for doping an organic semiconductor. A film formed by such n-doping may be used in an organic electronic device, for example an electron injection layer of an organic light-emitting device. 

Compounds for use in organic electronic devices

A compound of formula (I) or (III) (Formulae (I), (III)) wherein: one Y is a substituent Rbound directly to the fluorene unit of formula (I) by an sp-hybridised carbon atom; the other Y is an aryl or heteroaryl group Arthat may be unsubstituted or substituted with one or more substituents; Aris an arylene or heteroarylene group; Ris a substituent; b is 0, 1, 2, 3 or 4; c is 0, 1, 2 or 3; and X is a group of formula (II): (Formula (II)) wherein Z is O or S; Rindependently in each occurrence is a substituent; each x is independently 0, 1, 2 or 3; and * is a bond to the fluorene unit of formula (I). The compounds may be used as host materials for phosphorescent dopants in organic light-emitting devices. 

Compound, composition and organic light-emitting device

A phosphorescent compound of formula (I): wherein: M is a transition metal; Cis a carbon atom forming a metal-carbene bond with M; A is a saturated bridged bicyclic or saturated bridged tricyclic group consisting of one nitrogen atom and 6-12 carbon atoms; either: (i) Xis a bridgehead carbon atom of the bridged bicyclic or bridged tricyclic group and Xis NRwherein Ris a substituent, or (ii) Xis N and Xis a bridgehead group of formula CRwherein Ris H or a substituent; Aris a Caromatic group or a 5-20 membered heteroaromatic group; L in each occurrence is independently a mono- or poly-dentate ligand other than a ligand of formula A-Ar; x is at least 1; and y is 0 or a positive integer. The compound of formula (I) may be used as a blue light-emitting material in a white organic light-emitting device.

Light-emitting compound

A compound of formula (I) wherein Z is a group of formula (II) and Core is selected from groups of formula (IIIa) or (IIIb) wherein X is S or O; Ris a substituent; n is 0 or a positive integer; Arindependently in each occurrence is an arylene group; Ris a substituent; Ris a substituent; Ris an arylene or heteroarylene group; Y is C or Si; a is 1, 2 or 3; b is 0 or a positive integer; and c is 0 or a positive integer. The compound of formula (I) may be used as a host for a light-emitting dopant in an organic light-emitting device. 

Dibenzofuran and dibenzothiophene derivatives and organic light-emitting devices containing them

A compound of formula (I): wherein M is a transition metal; x is at least 1; z is 0 or a positive integer; Lis a ligand selected from one of ligands (II-A), (II-B); Lis a ligand selected from another of ligands of formulae (II-A), (II-B) and (II-C); and Lis a ligand other than a ligand of formulae (II-A), (II-B) or (II-C): (II-A) (II-B) (II-C) in which each of R-Ris substituent and Ar-Arare each an unsubstituted or substituted aryl or heteroaryl group. The compound of formula (I) may be used as a phosphorescent light-emitting material of an organic light-emitting device. 

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Godmanchester, United Kingdom

William Tarran