Abstract: A percolation network of functionalised reduced graphene oxide flakes, the percolation network configured to allow for hopping of charge carriers between adjacent reduced graphene oxide flakes to enable a flow of charge carriers through the percolation network, and wherein the reduced graphene oxide flakes are functionalised to facilitate detectable changes in the flow of charge carriers in response to a stimulus to the percolation network.

Abstract: A multilayer graphene composite comprising a plurality of stacked graphene layers separated from one another by an ion gel, wherein the ion gel is intercalated between adjacent graphene layers such that ions within the ion gel are able to arrange themselves at the surfaces of the graphene layers to cause a detectable change in one or more of an electrical and optical property of the graphene layers when a gate voltage is applied to a gate electrode in proximity to the ion gel.

Abstract: In accordance with an example embodiment of the present invention, a device comprising one or more porous graphene layers, the or each graphene porous layer comprising a multiplicity of pores. The device may form at least part of a flexible and/or stretchable, and or transparent electronic device.

Abstract: An apparatus comprising a channel member(401), first and second electrodes (403, 404) configured to enable a flow of electrical current from the first electrode through the channel member to the second electrode, and a supporting substrate (402) configured to support the channel member and the first and second electrodes, wherein the channel member is separated from the supporting substrate by a nanomembrane (411) configured to facilitate the flow of electrical current through the channel member by inhibiting interactions between the channel member and supporting substrate. Possibly, a conductive shield layer (412) is present between the substrate and the nanomembrane, which may be a nanomembrane as well. The apparatus may also include a gate electrode (406) and a gate dielectric (407), the latter possibly being a nanomembrane as well. The apparatus may be configured to sense analyte species (513) as shown in FIG.

Abstract: A multilayer graphene composite comprising a plurality of stacked graphene layers separated from one another by an ion gel, wherein the ion gel is intercalated between adjacent graphene layers such that ions within the ion gel are able to arrange themselves at the surfaces of the graphene layers to cause a detectable change in one or more of an electrical and optical property of the graphene layers when a gate voltage is applied to a gate electrode in proximity to the ion gel.

Abstract: A percolation network of functionalised reduced graphene oxide flakes, the percolation network configured to allow for hopping of charge carriers between adjacent reduced graphene oxide flakes to enable a flow of charge carriers through the percolation network, and wherein the reduced graphene oxide flakes are functionalised to facilitate detectable changes in the flow of charge carriers in response to a stimulus to the percolation network.

Abstract: A method including providing graphene on a growth substrate; providing a target substrate on the graphene to form a first composite including the target substrate and graphene; and removing at least a portion of the first composite from the growth substrate.

Abstract: In accordance with an example embodiment of the present invention, a device comprising one or more porous graphene layers, the or each graphene porous layer comprising a multiplicity of pores. The device may form at least part of a flexible and/or stretchable, and or transparent electronic device.

Abstract: In accordance with an example embodiment of the present invention, a device comprising one or more porous graphene layers, the or each graphene porous layer comprising a multiplicity of pores. The device may form at least part of a flexible and/or stretchable, and or transparent electronic device.

Abstract: An apparatus including a capacitance touch sensor arrangement configured to have a variable capacitance that varies when a user finger touches the capacitance touch sensor arrangement; and at least one variable resistor sensor integrated within the capacitance touch sensor arrangement wherein the variable resistor sensor has a variable resistance that varies with a sensed parameter; the apparatus including an input configured to receive an input signal including a time varying component and an output configured to provide an output signal that depends upon both the capacitance of the capacitance touch sensor arrangement and the resistance of the variable resistance sensor.

Abstract: An apparatus and method wherein the apparatus includes a deformable substrate; a conductive portion; and at least one support configured to couple the conductive portion to the deformable substrate so that the conductive portion is spaced from the deformable substrate.

Abstract: An apparatus and method wherein the apparatus comprises includes a deformable substrate; a conductive portion; and at least one support configured to couple the conductive portion to the deformable substrate so that the conductive portion is spaced from the deformable substrate.

Abstract: An apparatus including a capacitance touch sensor arrangement configured to have a variable capacitance that varies when a user finger touches the capacitance touch sensor arrangement; and at least one variable resistor sensor integrated within the capacitance touch sensor arrangement wherein the variable resistor sensor has a variable resistance that varies with a sensed parameter; the apparatus including an input configured to receive an input signal including a time varying component and an output configured to provide an output signal that depends upon both the capacitance of the capacitance touch sensor arrangement and the resistance of the variable resistance sensor.

Abstract: A method including providing graphene on a growth substrate; providing a target substrate on the graphene to form a first composite including the target substrate and graphene; and removing at least a portion of the first composite from the growth substrate.

Abstract: In accordance with an example embodiment of the present invention, a device comprising one or more porous graphene layers, the or each graphene porous layer comprising a multiplicity of pores. The device may form at least part of a flexible and/or stretchable, and or transparent electronic device.

Abstract: A sensor system for determining the position of at least one edge of at least one web material traveling along a predetermined path. In one embodiment, the sensor system has at least one transmitter block having a plurality of transmitters capable of selectively transmitting ultrasonic signals and at least one receiver block having a plurality of receivers capable of generating receiver output signals in response to the receivers receiving at least a portion of the ultrasonic signals transmitted by the at least one transmitter block. The receiver block is spaced a distance from the transmitter block so as to define a sensor field of view therebetween whereby at least a portion of the at least one web material traveling along a predetermined travel path interferes with at least a portion of the ultrasonic signals transmitted by the at least one transmitter block.

Abstract: A sensor system for determining the position of at least one edge of at least one web material traveling along a predetermined path. In one embodiment, the sensor system has at least one transmitter block having a plurality of transmitters capable of selectively transmitting ultrasonic signals and at least one receiver block having a plurality of receivers capable of generating receiver output signals in response to the receivers receiving at least a portion of the ultrasonic signals transmitted by the at least one transmitter block. The receiver block is spaced a distance from the transmitter block so as to define a sensor field of view therebetween whereby at least a portion of the at least one web material traveling along a predetermined travel path interferes with at least a portion of the ultrasonic signals transmitted by the at least one transmitter block.