Cambridge Display Technology Limited

Panasonic Corporation

Cambridge Enterprise Limited

Jonathan J Halls

Gregory Lewis Whiting

Jeremy H Burroughes

Craig Edward Murphy

Richard Henry Friend

Sadayoshi Hotta

Richard J Wilson

Julian Charles Carter

Euan Christopher Smith

Carl R Towns

Thomas Kugler

Christopher Newsome

Thomas Pounds

Wilhelm Huck

Mark Bale

Kaname Ito

Zi-Jian Zheng

Mark Garbett

Matthew Shade

Zijian Zheng

A method is provided to produce an opto-electronic device comprising a substrate, a first electrode layer, a second electrode layer of opposite polarity to said first electrode layer, any interlayers and, between said first and second electrode layers, a first functional material in interfacial contact with a second functional material, wherein the first functional material has the structure of a laterally porous film and the second functional material is a film disposed over and interpenetrating with the film of the first functional material.

Method of preparing opto-electronic device

An organic thin film transistor comprising: a substrate; a source electrode and a drain electrode disposed over the substrate with a channel region therebetween; a layer of organic semiconductor disposed in the channel region; a gate electrode; and a gate dielectric disposed between the layer of organic semiconductor and the gate electrode, wherein the gate dielectric comprises a cross-linked polymer and a fluorine containing polymer.

Organic thin film transistors

A method of forming an organic thin film transistor comprising source and drain electrodes with a channel region therebetween, a gate electrode, a dielectric layer disposed between the source and drain electrodes and the gate electrode, and an organic semiconductor disposed in at least the channel region between the source and drain electrodes, said method comprising: seeding a surface in the channel region with crystallization sites prior to deposition of the organic semiconductor; and depositing the organic semiconductor onto the seeded surface whereby the organic semiconductor crystallizes at the crystallization sites forming crystalline domains in the channel region.

An organic thin film transistor, and a method of making the same, comprising a source and drain electrode and organic semi-conductive material disposed therebetween in a channel region, in which the source and drain electrodes have disposed on them a thin self-assembled layer of a material comprising a dopant moiety for chemically doping the organic semi-conductive material by accepting electrons, the dopant moiety having a redox potential of at least 0.3 eV relative to a saturated calomel electrode in acetonitrile.

Organic thin film transistors and methods of making the same

The present invention provides a method of manufacturing an organic thin film transistor (TFT), comprising: providing a substrate layer; providing a gate electrode layer; providing a dielectric material layer; providing an organic semiconductor (OSC) material layer; providing a source and drain electrode layer; and wherein one or more of the layers is deposited using a laser induced thermal imaging (LITI) process. Preferably the organic TFT is a bottom gate device and the source and drain electrodes are deposited on an organic semiconductor layer, or over a dielectric material layer using LITI. Further preferably a dopant material may be provided between the OSC material and the source and drain electrode layer, wherein the dopant material may also be deposited using LITI. Also preferably, wherein the dopant may be a charge neutral dopant such as substituted TCNQ or F4TCNQ.

Organic thin film transistors and methods of making them

A method of producing an encapsulated module of interconnected opto-electronic devices which comprises: forming a patterned anode layer; forming a layer of opto-electronically active material over the patterned anode layer; forming a patterned cathode layer over the layer of opto-electronically active material, to provide a device array of opto-electronically active cells on the substrate; selectively removing portions of the layer of opto-electronically active material so as to expose minor portions of the anodes; forming a patterned interconnect layer on an encapsulating sheet in a pattern to define an array of interconnect pads; and laminating the patterned encapsulating sheet over the array of opto-electronically active cells whereby the exposed anode portions are interconnected with the cathodes of adjacent cells by the interconnect pads and the interconnected cells are encapsulated by the encapsulating sheet.

Laminated interconnects for organic opto-electronic device modules and method

An optocoupler including: a substrate comprising a photodetector; a transparent electrically-insulating layer disposed over the photodetector; and an organic electroluminescent device having an organic electroluminescent layer disposed between a first and a second electrode disposed over the transparent electrically-insulating layer; the photodetector arranged to detect light emitted from the organic electroluminescent device; wherein the optocoupler comprises a second current path between the first and second electrodes in addition to a first current path between the first and second electrode which in operation causes the organic electroluminescent layer to emit light.

Organic electroluminescent optocouplers

A method of manufacturing an organic thin film transistor, the method comprising: depositing a source and drain electrode; forming a thin self-assembled layer of material on the source and drain electrodes, the thin self-assembled layer of material comprising a dopant moiety for chemically doping an organic semi-conductive material by accepting or donating charge and a separate attachment moiety bonded to the dopant moiety and selectively bonded to the source and drain electrodes; and depositing a solution comprising a solvent and an organic semi-conductive material in a channel region between the source and drain electrode.

Organic thin film transistors, organic light-emissive devices and organic light-emissive displays

A method of forming an organic thin film transistor comprising: providing a structure comprising source and drain electrodes with a channel region therebetween, a gate electrode, and a dielectric layer disposed between the source and drain electrodes and the gate electrode; and patterning the dielectric layer using the source and drain electrodes as a mask to form a region of dielectric material in the channel region which is thinner than regions of dielectric material adjacent the channel region.

A process for manufacturing an electrical device, the process comprising the steps: providing a substrate; bringing a stamp into contact with the substrate whereby areas of the substrate contacted by the stamp have decreased wettability; and depositing a liquid comprising an electrically active material over areas of the substrate located between the areas of decreased wettability.

Electric devices and methods of manufaturing the same

An active matrix organic optical device comprising a plurality of organic thin film transistors and a plurality of pixels disposed on a common substrate, wherein a common bank layer is provided for the organic thin film transistors and the pixels, the common bank layer defining a plurality of wells, wherein some of the wells contain the organic semiconducting material of the organic thin film transistors therein and others of the wells contain organic optically active material of the pixels therein.

Active matrix optical device

A combined information display and information input device comprising a matrix of independently addressable light emitting devices and a plurality of light sensing devices, the light emitting devices comprising organic light emitting diodes comprising organic light emitting material positioned between a low work function electrode and a high work function electrode characterized in that the light sensing devices comprise organic photovoltaic devices comprising at least an organic electron donor and at least an organic electron acceptor positioned between a high work function electrode and a low work function electrode. The combined information display and information input device has application as a touch screen, for example for a mobile communication device.

Combined information display and information input device

A monomer having general Formula (I) which may be substituted or unsubstituted: where E and E are the same or different and are reactive groups capable of undergoing chain extension; X is O, S, NR, RC&#x2014;CRor R&#x2550;CR; Y is O, S, NR, RC&#x2014;CRor RC&#x2550;CR; R, RRand Rare the same or different and each is independently H or a substituent group; and each Ar is the same or different and is independently a substituted or unsubstituted aryl or heteroaryl group. 

Monomer for use in preparation of a polymer to be used in optical devices

A method of preparing a plurality of electrically connected organic optoelectronic devices on a substrate comprising firstly preparing a plurality of organic optoelectronic devices on a substrate, by the steps of providing a patterned layer of a first conductive material over the substrate, providing layer of organic optoelectronic material over the layer of first conductive material and providing a patterned layer of a second conductive material over the layer of organic optoelectronic material, at least partially removing regions of the organic optoelectronic material which are not covered by the patterned layer of second conductive material and secondly providing electrical connections to electrically connect at least two of the plurality of organic optoelectronic devices. The organic optoelectronic devices are suitably organic photovoltaic devices or organic electroluminescent devices.

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Cambridgeshire, United Kingdom

Jonathan J Halls