Power Roll Limited

Qinetiq Limited

Alexander John Topping

Jonathan Rennie Hughes

Carl Vernon Brown

Stuart David Coomber

Nicholas Kasch

Trevor Mcardle

Peter Drysdale Lane

There is provided a two-terminal device, including a substrate comprising a first cell having a first characteristic resistance, and a second cell, spaced apart from the first cell along the web direction of the substrate, having a second characteristic resistance; a first terminal and a second terminal, each terminal being formed towards or at opposing edges of the substrate across the transverse direction, and each terminal being in electrical communication with the first cell and the second cell; and a connecting portion, between the first cell and the second cell, the connecting portion having a third characteristic resistance; wherein the third characteristic resistance is greater than or equal to at least one of the first characteristic resistance and the second characteristic resistance. There is also provided a method of forming such a two-terminal device).

Two-terminal device

The invention relates to an energy storage device () comprising a substrate with a groove () having a first and a second face (). A capacitor material () in the groove (), the capacitor material having an upper surface (). The first and the second face () of the groove () each having a coat of electrically conductive material () wherein the coats of electrically conductive materials () on the first and second faces () are electrically separated. And wherein, a non-insulating element () is configured to be electrically contactable with the upper surface () of the capacitor material and when in electrical contact is electrically separated from the coats of electrically conductive materials () on the first and second surfaces by the capacitor material ().

Energy storage device comprising a groove with capacitor material therein

An energy storage device comprising a substrate comprising a groove having a first and a second face. A capacitor material in the groove. The first and the second face of the groove having a coat of metal. Wherein the coat of metal on the first face is not in electrical contact with the coat of metal on the second face.

Energy storage

An energy storage device comprising a substrate comprising a series of grooves. Each groove having a first and a second face. Wherein there is a capacitor material in each groove of the series of grooves.

Capacitors in grooves

The present invention relates to an energy storage device comprising a flexible substrate comprising at least two patterned regions spaced apart from one another along the length of the flexible substrate. Each patterned region comprises at least one groove extending in the longitudinal direction of the substrate (web direction) having a first and a second face, wherein the first and second faces are each coated with a conductor such that there is no direct electrical communication between the conductor on the first and second faces, the at least one groove contains a material for storing electrical potential energy (e.g. capacitive material), the first and the second face of the at least one groove of each patterned region are each in electrical connection with an electrical conductor at opposing edges of the flexible substrate, and the first and the second patterned region are electrically connectable to one another.

Flexible energy storage device

The present invention relates to an optoelectronic device comprising a substrate having a first and a second substantially planar face, a series of grooves in the first substantially planar face, and a first and a second electrical conductor on the second substantially planar face; wherein a first face of the first electrical conductor and a first face of the second electrical conductor are reflective.

Optoelectronic device with reflective face

A two-terminal optoelectronic device includes a substrate having a first and a second series of grooves. A channel may transect the grooves of the first and second series of grooves. Each groove of the first and second series of grooves has a first and a second face and a cavity therebetween. The cavity is at least partially filled with a first semiconductor material. The first face is coated with a conductor material and the second face coated with a second semiconductor material. A structured surface of the substrate separates the first series of grooves from the second series of grooves to define a positive pole and a negative pole thereon. A method of producing an optoelectronic device incorporates the grooves into the surface of the substrate.

Optoelectronic device and method of producing the same

An optoelectronic device comprising a substrate comprising a groove having a first and a second face. The first face of the groove is coated with a conductor material and the second face of the groove coated with a semiconductor material. The conductor material and the semiconductor material are in contact with another semiconductor material in the groove. There is an aperture in the another semiconductor material. The first face, second face, the conductor material and the semiconductor material are all in contact with the another semiconductor material in the groove.

Aperture in a semiconductor

An optoelectronic device comprising a substrate comprising a groove having a first and a second face. The first face of the groove is coated with a semiconductor material and the second face of the groove is coated with a conductor material. The conductor material and the semiconductor material are in contact with another semiconductor material in the groove. The first face of the groove is longer than the second face of the groove or the second face of the groove is longer than the first face of the groove.

Asymmetric groove

A method of producing a structure comprising a substrate () having at least one integral first face at a first angle relative to a normal from the substrate, at least one second integral second face at a second angle relative to a normal from the substrate; with a cavity in the structure between the first and second faces; the method comprising the steps of: coating a portion () of the first face with a first conducting layer; coating a portion () of the second face with a second conducting layer; and depositing in the cavity an active material () to provide ohmic and rectifying contacts for insertion or extraction of charge from the active material by way of the first and second conducting layers. The active material may be photovoltaic, light emitting or ion conducting.

Method of making a structure comprising coating steps and corresponding structure and devices

An optoelectronic device comprising a substrate comprising a groove having a first and a second side. The first and second sides of the groove are each coated with a conductor material and a semiconductor material. The semiconductor material on the first side of the groove and the conductor material on the second side of the groove are in contact with another semiconductor material in the groove. At the second side of the groove there is a gap between the semiconductor material on the second side of the groove and the another semiconductor material in the groove.

Gap between semiconductors

An optoelectronic device and method of producing the same. The optoelectronic device comprising a substrate having a first and a second substantially planar face and an aperture therein, the aperture passing through and penetrating the first and second substantially planar faces of the substrate. The aperture has a first and a second face defining a space therebetween. The space is at least partially filled with a first semiconductor material, the first face is coated with a conductor material and the second face is coated with a second semiconductor material.

A method of controlling the switching of an optically addressable spatial light modulator (OASLM), to a first surface of which a write light signal is applied and to a second surface of which a read light signal is applied. The method comprises applying a bipolar switching waveform to control electrodes of the (OASLM) during each write cycle such that the leading pulse of the waveform applies a voltage across the (OASLM) which is in the photosensitive direction and the trailing pulse applies a voltage which is not in the photosensitive direction.

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Sunderland, United Kingdom

Alexander John Topping