Merck Patent Gmbh

Zeneca Limited

Avecia Limited

Imperial Chemical Industries Limited

Stephen William Leeming

Janos Veres

Beverley Anne Brown

Simon Dominic Ogier

Richard Williams

Remi Manouk Anemian

John Dylan Morgan

Joanne Victoria Allen

Peter M Quan

David Mark Haddleton

Andrew Victor Muir

Mark Thomas

Julie Anne Fergus

Soad Mohialdin-Khaffaf

John D Schofield

Stephen G Yeates

Paul Craig Brookes

Domenico Carlo Cupertino

Stuart Nicholas Richards

John Patrick O'Donnell

Michael Ellwood

Richard Thomas Williams

Stephen George Yeates

An organic semiconducting layer formulation containing an organic binder which has a permittivity, &#x2208;, at 1,000 Hz of 3.3 or less and a polyacene compound of Formula A: and processes for the preparation thereof and uses thereof in various electronic devices.

Organic semiconducting layers

The invention relates to novel oligomeric polyacene compounds, organic semiconducting formulations and layers comprising them, a process for preparing the formulation and layer and electronic devices, including organic field effect transistors (OFETs), comprising the same.

Oligomeric is polyacene and semiconductor formulations

The invention relates to novel polyacene compounds, organic semiconducting formulations and layers comprising them, a process for preparing the formulation and layer and electronic devices, including organic field effect transistors (OFETs), comprising the same.

Polyacene and semiconductor formulation

A compound of formula 8 and uses thereof in various electronic devices and in a formulation for ink jet printing and in an organic semiconducting layer formulation.

Organic pentacene semiconducting layers

A composition for use as an organic semiconducting (OSC) material, the composition comprising: (i) at least one higher molecular weight organic semiconducting compound having a number average molecular weight (M) of at least 5000, and (ii) at least one lower molecular weight organic semiconducting compound having a number average molecular weight (M) of 1000 or less. Use of the composition in an electronic device, e.g. FET or OLED.

Organic semiconducting materials

A compound of formula 9 and uses thereof in various electronic devices and in a formulation for ink jet printing and in an organic semiconducting layer formulation.

Organic semiconductor layers

A field effect transistor in which a continuous semiconductor layer comprises:

Field effect transistors and materials and methods for their manufacture

A process of manufacturing an organic field effect device is provided comprising the steps of (a) depositing from a solution an organic semiconductor layer; and (b) depositing from a solution a layer of low permittivity insulating material forming at least a part of a gate insulator, such that the low permittivity insulating material is in contact with the organic semiconductor layer, wherein the low permittivity insulating material is of relative permittivity from 1.1 to below 3.0. In addition, an organic field effect device manufactured by the process is provided.

Organic field effect transistor with an organic dielectric

A polymeric material comprises at least one repeat unit consisting substantially of a moiety of Formula 1:in which Yrepresents N, P, S, As and/or Se. Arand Ar, which may the same or different, represent independently a multivalent, optionally substituted aromatic group, and Arrepresents independently a mono or multivalent, optionally substituted aromatic group. At least one terminal group is attached in the polymer to the Ar, Arand optionally Argroups located at the end of the polymer chains, so as to cap the polymer chains and prevent further polymer growth. At least one terminal group is derived from at least one end capping reagent used in the polymerization to form the polymeric material to control the molecular weight thereof. A charge transport material comprising such polymers is useful in electroreprographic and electroluminescent devices. These polymers may be made by controlling their molecular weight with an end capping reagent.

Compound, compositions and use

Process for the isolation of polymer fractions

Polymeric material comprising N, P, S, As, or Se and composition for charge transport material

Free radical polymerisation process

Composite articles

Free radical polymerization process

Growing community of inventors

Manchester, United Kingdom

Stephen William Leeming