Abstract:
A non-catalytic palladium precursor composition is disclosed, including a palladium salt and an organoamine, wherein the composition is substantially free of water. The composition permits the use of solution processing methods to form a palladium layer on a wide variety of substrates, including in a pattern to form circuitry or pathways for electronic devices.
Abstract:
A semiconducting copolythiophene composition that includes repeating units obtained from the copolymerization of compounds of Formula (2): and Formula (3): in which the copolythiophene has at least two repeating units (possessing side chains, such as alkyl side chains), which are arranged in manner such that the side chains on the polythiophene backbone are distributed non-uniformly, is described. Electronic devices incorporating such copolythiophene compositions are also described.
Abstract:
A thin-film transistor comprises a semiconducting layer comprising a semiconducting material selected from Formula (I) or (II): wherein X, R1, R2, R3, R4, R5 a, b, and n are as described herein. Semiconducting compositions of Formula (I) or (II) are also described.
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 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 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.
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 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 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.