Abstract: A method of producing a transparent conductive electrode is provided. The method comprises spraying a suspension of electrically conductive nanowires on a polymer substrate to form droplets thereon, wherein each of the droplets has a periphery which is in contact with one or more peripheries of another droplet, wherein the suspension comprises a polar solvent, wherein the polymer substrate and the polar solvent produce a surface tension which directs the electrically conductive nanowires to accumulate at the periphery of each of the droplets to form a network of connected ring structures, and removing the polar solvent from the polymer substrate to form a micromesh comprising the electrically conductive nanowires which are retained in the form of the network of connected ring structures. The transparent conductive electrode and its uses are also provided.

Abstract: The present disclosure refers to a reversible electrochemical device, wherein the electrolytic solution comprises a deep eutectic solvent, at least about 20 wt % aqueous solvent based on the total weight of deep eutectic solvent and aqueous solvent, and a metal salt. The present disclosure also refers to a use of an electrolytic solution in a reversible electrochemical mirror, wherein the electrolytic solution comprises a deep eutectic solvent; at least about 20 wt % 0 aqueous solvent based on the total weight of deep eutectic solvent and aqueous solvent; and metal salt.

Abstract: Provided is the use of a magnetic nanocomposite material that is capable of polymerising an anaerobic adhesive or other monomeric materials in need thereof as a nanoinitiator, in said polymerisation. Also disclosed herein is a method of manufacturing the magnetic nanocomposite material. In a preferred embodiment, the nanoinitiator is a magnetic nanoparticle core covered with a shell bearing dendrons that chelate an initiating metal ion of copper.

Abstract: Disclosed herein are a flexible textile-based silver electrode and a sweat-activated battery. Also disclosed herein is a method of making the flexible textile-based silver electrode by providing a composite material comprising a flexible textile substrate and a polymeric silver electrode wire, and bringing the composite material into contact with an aqueous solution comprising a non-toxic chloride salt and an organic acid for a period of time, wherein the electrode wire comprising an elastomeric material and silver flakes homogeneously distributed throughout the elastomeric material.

Abstract: The microfluidic board comprises a plurality of matrix units, wherein each matrix unit is a stacked arrangement comprising a driving portion comprising an actuator, a pump portion in contact with the driving portion and comprising a pump, a channel portion in contact with the pump portion and comprising one or more channels, and a chamber portion in contact with the channel portion and comprising a chamber, wherein the one or more channels are configured to direct fluid between the pump and the chamber, and wherein the actuator is configured to generate a force to drive the pump upon receiving of an input energy.

Abstract: The present disclosure relates to a wearable water triboelectric generator, wherein the water triboelectric generator comprises a first substrate having a first surface and a second surface, wherein the first surface and the second surface are opposing to each other; and wherein the first surface comprises a modified hydrophobic surface comprising a coating of hydrophobic cellulose oleoyl ester nanoparticles. There is also provided a wearable dual mode water and contact triboelectric generator comprising said water triboelectric generator and a contact triboelectric generator, wherein the water triboelectric generator and the contact triboelectric generator are arranged such that the first substrate of the water triboelectric generator completely surrounds or encapsulates the contact triboelectric generator.

Abstract: An inkjet printable ionic conductive ink for producing a touch sensor device is provided. The inkjet printable ionic conductive ink includes a hydrophilic polymer and an ionic salt, a mixture of solvents in which the hydrophilic polymer and the ionic salt are dissolved therein to form a solution, and a surfactant to render the solution inkjet printable. A method of producing the inkjet printable ionic conductive ink is also provided. The method includes dissolving a hydrophilic polymer and an ionic salt in a mixture of solvents to form a solution, and mixing the solution with a surfactant to render the solution inkjet printable. A touch sensor panel comprising the ionic conductive ink and a method of producing the touch sensor panel are also provided.

Abstract: An energy harvester having an electromagnet and a triboelectric nanogenerator. The triboelectric nanogenerator has triboelectric layers configured to be spaced apart by a gap width. Displacement of a magnet of the electromagnet is configured to enable the triboelectric layers to contact one another, in which the gap width is configured to be smaller than the displacement.

Abstract: Disclosed herein is a material suitable for the adsorption, storage and release of volatile organic compounds comprising: a porous thin film layer formed from nanosheets of one or more MXenes.

Abstract: An electrochromic energy storage device disclosed herein comprises a first electrode and a second electrode disposed in an electrolyte, wherein the first electrode comprises a coordination polymer, wherein the coordination polymer comprises a transition metal and a tetradentate ligand conjugated to the transition metal, wherein the transition metal and the tetradentate ligand render the first electrode operable to (i) store electrical energy and at the same time change its optical state upon electrical charging of the electrochromic energy storage device, and (ii) release electrical energy stored therein and at the same time change its optical state upon electrical discharge of the electrochromic energy storage device. A method of forming the electrochromic energy storage device and a method of forming an electrochromic energy storage film are disclosed herein.

Abstract: Disclosed herein is a buckling actuator, comprising: a first electrode; a second electrode; and a film of a dielectric elastomeric material having a first surface and a second surface sandwiched between the first and second electrodes, wherein the material is formed by the random block copolymerisation of a polymeric material comprising silicon or nitrogen atoms that has two or more acrylate or vinyl end groups, and a polar polymeric material having two or more acrylate or vinyl end groups. Also disclosed herein is a method of forming said dielectric elastomeric material.

Abstract: The present invention relates to an elastic conductor with high conductivity and stable electrical performance under stretching. The elastic conductor comprises a matrix material; a plurality of electrically conductive structures embedded in the matrix; and one or more particles embedded in the matrix, wherein the particles are configured to release an electrically conductive material upon stretching of the elastic conductor. In a preferred embodiment, each of the particles comprises a core of the electrically conducting material, such as liquid eutectic gallium indium alloy, and an outer shell surrounding the core, such as gallium oxide.

Abstract: An inkjet printable ionic conductive ink for producing a touch sensor device is provided. The inkjet printable ionic conductive ink includes a hydrophilic polymer and an ionic salt, a mixture of solvents in which the hydrophilic polymer and the ionic salt are dissolved therein to form a solution, and a surfactant to render the solution inkjet printable. A method of producing the inkjet printable ionic conductive ink is also provided. The method includes dissolving a hydrophilic polymer and an ionic salt in a mixture of solvents to form a solution, and mixing the solution with a surfactant to render the solution inkjet printable. A touch sensor panel comprising the ionic conductive ink and a method of producing the touch sensor panel are also provided.

Abstract: The microfluidic board comprises a plurality of matrix units, wherein each matrix unit is a stacked arrangement comprising a driving portion comprising an actuator, a pump portion in contact with the driving portion and comprising a pump, a channel portion in contact with the pump portion and comprising one or more channels, and a chamber portion in contact with the channel portion and comprising a chamber, wherein the one or more channels are configured to direct fluid between the pump and the chamber, and wherein the actuator is configured to generate a force to drive the pump upon receiving of an input energy.

Abstract: The present invention relates to an elastic conductor with high conductivity and stable electrical performance under stretching. The elastic conductor comprises a matrix material; a plurality of electrically conductive structures embedded in the matrix; and one or more particles embedded in the matrix, wherein the particles are configured to release an electrically conductive material upon stretching of the elastic conductor. In a preferred embodiment, each of the particles comprises a core of the electrically conducting material, such as liquid eutectic gallium indium alloy, and an outer shell surrounding the core, such as gallium oxide.

Abstract: A method of producing a transparent conductive electrode is provided. The method comprises spraying a suspension of electrically conductive nanowires on a polymer substrate to form droplets thereon, wherein each of the droplets has a periphery which is in contact with one or more peripheries of another droplet, wherein the suspension comprises a polar solvent, wherein the polymer substrate and the polar solvent produce a surface tension which directs the electrically conductive nanowires to accumulate at the periphery of each of the droplets to form a network of connected ring structures, and removing the polar solvent from the polymer substrate to form a micromesh comprising the electrically conductive nanowires which are retained in the form of the network of connected ring structures. The transparent conductive electrode and its uses are also provided.

Abstract: A method of manufacturing an electrochromic device is provided. The method includes providing a patterned arrangement of an electrically conductive material; and applying one or more layers of an electrochromic material to the patterned arrangement, wherein at least a portion of the electrochromic material is in electrical contact with the electrically conductive material. An electrochromic device and an electrochromic ink composition are also provided.

Abstract: A method for preparing a niobium, titanium or vanadium metal oxide nanostructured material is provided. The method comprises providing an aqueous reagent comprising (i) a soluble metal oxalate, and/or (ii) oxalic acid and a metal oxide precursor, adding a buffering agent to the aqueous reagent to form a mixture, and heating the mixture under hydrothermal conditions to obtain the metal oxide nanostructured material. The metal oxide nanostructured material may also be doped with a dopant metal such as titanium to enhance capacity and cycling stability. An electrode comprising the metal oxide nanostructured material, and an electrochemical cell containing the electrode are also provided.

Abstract: The present disclosure relates to a wearable water triboelectric generator, wherein the water triboelectric generator comprises a first substrate having a first surface and a second surface, wherein the first surface and the second surface are opposing to each other; and wherein the first surface comprises a modified hydrophobic surface comprising a coating of hydrophobic cellulose oleoyl ester nanoparticles. There is also provided a wearable dual mode water and contact triboelectric generator comprising said water triboelectric generator and a contact triboelectric generator, wherein the water triboelectric generator and the contact triboelectric generator are arranged such that the first substrate of the water triboelectric generator completely surrounds or encapsulates the contact triboelectric generator.

Abstract: In various embodiments, a stretchable electroluminescent device may be provided. The electroluminescent device may include a first contact structure. The first contact structure may include an ionic conductor layer. The electroluminescent device may also include a second contact structure. The electroluminescent device may additionally include an emission layer between the first contact structure and the second contact structure. The emission layer may be configured to emit light when an alternating voltage is applied between the first contact structure and the second contact structure.