Abstract: A lighting device includes a base, a transparent cover, an electronic circuit mounted to the base, and an antenna. The electronic circuit is connectable with a light emitting element adapted to emit a light through the transparent cover and/or a light receiving element adapted to receive a light through the transparent cover. The antenna has a radiating patch following a contour of an inner surface of the transparent cover and connected to the electronic circuit.

Abstract: A stretchable ink composition comprising a polyester; a polyurethane elastomer; water; a co-solvent; an optional surfactant; and an optional colorant.

Abstract: An electronic device includes a substrate, a gate electrode, a dielectric layer, a source electrode, a drain electrode, and a semiconducting layer formed from an organic semiconductor compound and a photo-responsive polymer. The resistance can be switched to a “low” state by irradiation, and can be switched to a “high” state by applying a gate bias voltage. This can be useful for a memory device.

Abstract: A stretchable ink composition comprising a polyester; a polyurethane elastomer; water; a co-solvent; an optional surfactant; and an optional colorant.

Abstract: A stretchable ink composition comprising a polyester; a polyurethane elastomer; water; a co-solvent; an optional surfactant; and an optional colorant.

Abstract: A method of producing a solderable aluminum contact comprises formulating an ink, applying the ink to an aluminum substrate to form an ink layer on a surface of the aluminum substrate, and melting the ink layer. The ink includes a solderable element that is conductive. The melting of the ink layer forms an alloy on the surface of the aluminum substrate including the solderable element.

Abstract: A method of forming a conductive trace that includes selecting a substrate, jet dispenser, and conductive ink; measuring the ink's viscosity (Vm); using Vm to select one of criteria (i)-(iv): applying the selected criteria to the dispenser; applying the ink onto the substrate; and drying, curing, or annealing the ink to form the conductive trace having ?4B adhesion. The criteria (i)-(iv) including: (i) (Vm)>2.0 Pa-s, then (1) add a fluid—repeat D)-E) or (2) repeat C)-E); (ii) 2.0 Pa-s?Vm>0.35 Pa-s, use needle diameter ?3.0 mm & nozzle diameter (d)?0.15 mm with ratio of nozzle length (L) to nozzle diameter (d)?30; (iii) Vm<0.25 Pa-s, use a needle diameter ?1.0 mm and <3.0 mm & nozzle diameter ?0.15 mm with L/d?30; or (iv) 0.25 Pa-s?Vm?0.35 Pa-s, use criteria (ii) or (iii).

Abstract: A silver paste ink composition comprises a plurality of first particles comprising silver; a polymer binder; a carrier solvent; and a plurality of second particles comprising silver. The second particles are nanoparticles that are different than the first silver particles, the amount of second particles in the ink composition being sufficient to impart a first color to the uncured ink composition, the first color being different than the color of the same ink composition without the nanoparticles. The silver nanoparticles have a property of causing a change in the color of the ink composition when the ink composition is cured.

Abstract: A pH sensor contains a potentiometric sensing electrode made of palladium. An optional metal oxide layer may be coated on the palladium electrode to enhance sensitivity. The pH sensor has high sensitivity, a shorter response time, and good reversibility and stability.

Abstract: A conductive composition that comprises a branched metal carboxylate and one or more solvents. The solvents may be an aromatic hydrocarbon solvent. In embodiments, the branched metal carboxylate is a silver carboxylate. The conductive composition may be used in forming conductive features on a substrate, including by inkjet printing, screen printing or offset printing.

Abstract: An inductor that includes an electrically conductive construct, wherein the electrically conductive construct includes a first layer having a predetermined geometry, wherein the first layer includes at least one conductive material such as a metal; and a second layer oriented parallel to the first layer, wherein the second layer includes at least one soft ferrite, and wherein the second layer is configured in a co-planar arrangement with the first layer.

Abstract: A method of forming a conductive trace that includes selecting a substrate, jet dispenser, and conductive ink; measuring the ink's viscosity (Vm); using Vm to select one of criteria (i)-(iv): applying the selected criteria to the dispenser; applying the ink onto the substrate; and drying, curing, or annealing the ink to form the conductive trace having ?4B adhesion. The criteria (i)-(iv) including: (i) (Vm)>2.0 Pa-s, then (1) add a fluid—repeat D)-E) or (2) repeat C)-E); (ii) 2.0 Pa-s?Vm>0.35 Pa-s, use needle diameter?3.0 mm & nozzle diameter (d)?0.15 mm with ratio of nozzle length (L) to nozzle diameter (d)?30; (iii) Vm<0.25 Pa-s, use a needle diameter?1.0 mm and <3.0 mm & nozzle diameter?0.15 mm with L/d?30; or (iv) 0.25 Pa-s?Vm?0.35 Pa-s, use criteria (ii) or (iii).

Abstract: A sensor including a sensing element comprising conductive features formed on a substrate; wherein the conductive features have been formed from a palladium complex ink composition that has been deposited onto the substrate to form the deposited features and wherein the deposited features have been heated to form the conductive features on the substrate. A method including disposing a palladium complex ink composition onto a substrate to form deposited features; and heating the deposited features to form conductive features on the substrate. A strain gauge sensor including a sensing element comprising conductive features formed on a substrate; wherein the conductive features conform to a two dimensional substrate surface; or wherein the conductive features conform to a three dimensional substrate surface.

Abstract: An ultrasonic transmitter and ultrasonic receiver include a piezoelectric layer and at least one conductive layer comprising metal nanoparticles. The metal nanoparticles may be a silver nanoparticle, copper nanoparticle, gold nanoparticle, palladium nanoparticle, nickel nanoparticle, and the mixture thereof. Use of metal nanoparticles as a conductive layer provides for ultrasonic transmitters or receivers with smooth, dense, and highly conductive electrodes, thus resulting in reduced ultrasonic energy loss and improved image quality.

Abstract: A transparent conductive film. The film comprises a transparent polymer comprising fused latex polymer particles. A plurality of nanowires comprising silver are partially dispersed in the transparent polymer. Devices employing the transparent conductive film and methods of making the devices are also disclosed.

Abstract: A solder mask ink for aerosol jet printing includes a metal oxide and a propylene glycol-based solvent; the solder mask ink has a viscosity from about 50 cps to about 1,000 cps at shear rate of 10 1/s at 25° C., and a shear thinning index from about 1.0 to about 2.0.

Abstract: A transistor has a substrate, source and drain electrodes on the substrate, the source and drain electrodes formed of a conductor ink having silver nanoparticles with integrated dipolar surfactants, an organic semiconductor forming a channel between the source and drain electrodes, the organic semiconductor in contact with the source and drain electrodes, a gate dielectric layer having a first surface in contact with the organic semiconductor, and a gate electrode in contact with a second surface of the gate dielectric layer, the gate electrode formed of silver nanoparticles with integrated dipolar surfactants.

Abstract: A method of digitally printing a solder mask. The method includes providing a solder mask ink composition including: 1) a resin and 2) a solvent in an amount of at least 20% by weight relative to the total weight of the solder mask ink composition. The composition has a viscosity that is less than 1000 cps at a shear rate of 10 s?1 and a temperature of 25° C. An aerosol stream is generated from the solder mask ink composition with a pneumatic atomizer using an atomization gas. The aerosol stream is directed through a nozzle and focused using a sheath gas onto a substrate while changing the position of the nozzle with respect to the substrate to selectively deposit a solder mask pattern. The solder mask pattern is cured.

Abstract: A solder mask ink composition is disclosed. The solder mask ink composition includes an epoxy resin; a solvent in an amount of at least 20% by weight relative to the total weight of the solder mask ink composition; and optionally a non-ionic surfactant. The ink composition has a viscosity that is less than 1000 cps at a shear rate of 10 s?1 and greater than 30 cps at a shear rate of 495 s?1 and a temperature of 25° C.

Abstract: An ink includes a plurality of silver nanoparticles, an aminomethylsilane viscosifier, and a hydrocarbon solvent. A method includes providing an ink including a plurality of silver nanoparticles, an aminomethylsilane viscosifier, and a hydrocarbon solvent, the method including printing an image on a substrate with the ink, and annealing the image on the substrate. An ink includes organoamine-stabilized silver nanoparticles, a viscosifier comprising N-(6-aminohexyl)aminomethyltriethoxysilane, and a hydrocarbon solvent.