Cambridge Display Technology Limited

Sumitomo Chemical Company, Limited

Cdt Oxford Limited

Natasha M Conway

Mary Joyce McKiernan

Ilaria Grizzi

Nalinkumar Lallubhai Patel

Brian Tierney

Richard J Wilson

Mark Leadbeater

Daisuke Fukushima

Carl R Towns

Jonathan Nigel Pillow

Annette Steudel

Kiran Timothy Kamtekar

Clare Foden

Kazuei Ohuchi

Thomas Pounds

Sophie Barbara Heidenhain

William Tarran

Antonio Guerrero Castillejo

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. 

Light-emitting compound

A method of forming an organic light emitting diode comprising the steps of: providing a substrate comprising a first electrode for injection of charge carriers of a first type; forming a charge transporting layer by depositing over the substrate a charge transporting material for transporting charge carriers of the first type, the charge transporting material being soluble in a solvent; treating the charge transporting layer to render it insoluble in the solvent; forming an electroluminescent layer by depositing onto the charge transporting layer a composition comprising the solvent, a phosphorescent material, and a host material; and depositing over the electroluminescent layer a second electrode for injection of charge carriers of a second type.

Optical device comprising a charge transport layer of insoluble organic material and method for the production thereof

It is an object of the invention to provide a polymer compound that, when used in a light-emitting device, results in excellent luminance life for the obtained light-emitting device. The invention provides a polymer compound comprising a constitutional unit represented by formula (1). [In formula (1), R, R, R, Rrepresent an unsubstituted alkyl group, Rand Rrepresented an unsubstituted or substituted alkyl group, an unsubstituted or substituted alkoxy group, an unsubstituted or substituted aryl group, an unsubstituted or substituted aryloxy group, an unsubstituted or substituted heterocyclic group, an unsubstituted or substituted silyl group, a halogen atom, an alkoxycarbonyl group, a carboxyl or a cyano group, and Rand Rrepresent an unsubstituted or substituted alkyl group, an unsubstituted or substituted alkoxy group or an unsubstituted or substituted aryl group. The letters a, b, c and d each represent an integer of 0 to 3. When multiple R, R, Rand Rgroups are present, they may be the same or different.]

Polymer compound and light-emitting device using same

An organic light emissive device, which comprises: an anode; a cathode; and an organic light emissive region between the anode and the cathode, which region comprises: a layer of blue light electroluminescent organic material which emits light having first CIE co-ordinates by exciton radiative decay; and a layer of longer wavelength electroluminescent organic material which intrinsically emits light having second CIE co-ordinates by exciton radiative decay; wherein the layers of blue light and longer wavelength materials are selected so that the organic light emissive region emits white light falling within a region having a CIE &#x3c7; coordinate equivalent to that emitted by a black body at 3000-9000K and CIE &#x3b3; co-ordinate of said light emitted by a black body.

Light emissive device

A white light emitting material comprising a polymer having an emitting polymer chain and at least one emitting end capping group.

White light emitting material

An organic light-emitting device comprising an anode; a hole transport layer; a light-emitting layer; and a cathode, characterized in that the hole transport layer comprises a polymer having a repeat unit comprising a 9,9 biphenyl fluorene unit wherein the 9-phenyl rings are independently and optionally substituted and the fluorene unit is optionally fused.

Light-emitting device and 9.9 biphenyl fluorene materials therefor

A polymer compound that, when used for fabrication of a light emitting device, results in an excellent luminance lifetime for the obtained light emitting device. A polymer compound comprising a constitutional unit represented by formula (1). (In the formula, Rand Reach independently represent an unsubstituted alkyl group. Rand Reach independently represent a group other than an unsubstituted alkyl group. Rand Reach independently represent an unsubstituted or substituted alkyl, unsubstituted or substituted alkoxy or unsubstituted or substituted aryl group. The letters a and b each independently represent an integer of 0-4. The letters c and d each independently represent an integer of 0-3. When multiple R, R, Rand Rgroups are present, they may be the same or different.)

Polymer compound and light emitting device using the same

A semiconductive conjugated polymer comprising a first repeat unit comprising general formula I: 

Blue-shifted triarylamine polymer

An electronic device containing a hole transporting semiconductive polymer comprising a first repeat unit comprising a first nitrogen of a triarylamine in the polymer backbone and a second nitrogen of an arylamine pendant from the polymer backbone, characterised in that said semiconductive polymer performs the function of transporting holes to or from a semiconductive material in said device.

Electronic device

A semiconductive polymer comprising a first repeat unit in the polymer backbone comprising general formula 1: 

Arylamine polymer

A polymer for use in an opto-electrical device comprising aromatically conjugated repeat units of optionally substituted 9,9-dimethylfluorene.

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Histon, United Kingdom

Natasha M Conway