Cambridge Display Technology Limited

Sumitomo Chemical Company, Limited

Simon Goddard

Paul Wallace

Nicholas Dartnell

Christopher Newsome

Ilaria Grizzi

Daniel Tobjork

Mark Dowling

Nazrul Islam

Daniel Forsythe

Mark Ian Crankshaw

Gary Williams

Angela McConnell

Gonçalo Pedro Gonçalves

Mark Crankshaw

Angela Mcconnell

A gas sensor system for measuring a plurality of gases in an environment. The gas sensors system comprises multiple gas sensors where each of the gas sensors includes a pair of electrodes separated by a semiconducting material. The gas pairs of electrodes of the gas sensors are separated by different distances in each of the gas sensors. Resistivity of the semiconducting material of the gas sensors changes in the presence of a first gas and a contact resistivity between the electrodes and the semiconducting material of gas sensors changes in the presence of a second gas. From measurements of total resistivity of each of the gas sensors the presence and/or the concentration of both the first and the second gas sensors can be determined.

Semiconductor gas sensor and method for sensing two or more gases using contact resistance and sheet resistance

A gas sensor system () comprising at least one first field effect transistor () comprising first source and drain electrodes and at least one second field effect transistor () comprising second source and drain electrodes different from the first source and drain electrodes. Different responses of the first and second FETs to gases in an environment may be used to differentiate between the gases, for example to differentiate between 1-methylcyclopropene and ethylene in locations where fruit is stored.

Gas sensor system and method

A method of making an electrode for an organic electronic device comprises the steps of depositing an ink on a light emitting layer, and drying said ink to form said electrode. The ink comprises conductive metal or carbon particles, a binder and a hydrocarbon solvent selected from 1,1'-bicyclohexyl, cis-decalin trans-decaiin or n-undecane.

Method of making an electrode

A composition adapted for use in the manufacture of an organic light-emissive device by passing the composition through one or more openings under pressure to deposit the composition, the composition comprising: a semi-conductive organic host material; a luminescent metal complex; and a first solvent, wherein the first solvent has a structure: 

Compositions and methods for manufacturing light-emissive devices

A method of making an electronic device comprising a double bank well-defining structure, which method comprises: providing an electronic substrate; depositing a first insulating material on the substrate to form a first insulating layer; depositing a second insulating material on the first insulating layer to form a second insulating layer; removing a portion of the second insulating layer to expose a portion of the first insulating layer and form a second well-defining bank; depositing a resist on the second insulating layer and on a portion of the exposed first insulating layer; removing the portion of the first insulating layer not covered by the resist, to expose a portion of the electronic substrate and form a first well-defining bank within the second well-defining bank; and removing the resist. The method can provide devices with reduced leakage currents.

Electronic device

An improved composition for ink jet printing an opto-electrical device, which composition comprises a solution-processable host material and a metal complex, wherein the viscosity of the composition exceeds 12 mPa&#xb7;s at 20&#xb0; C.

Opto-electrical devices and methods of manufacturing the same

A composition suitable for fabricating an electronic device such as an OLED using an ink-jet printing technique comprises a conducting or semi-conducting organic material and a solvent, the solvent having a boiling point of greater than 250&#xb0; C. and a viscosity of less than 5 cPs. The composition preferably has a viscosity in the range between 0.1 and 20 cPs, and the solvent preferably has the formula: 

Solvent for a printing composition

A composition for use in the manufacture of an opto-electrical device, the composition comprising: a conductive or semi-conductive organic material; a solvent; and a first additive, wherein the first additive is an alcohol ether having a boiling point lower than 170&#xb0; C.

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Impington, United Kingdom

Simon Goddard