Abstract: Provided are an ink composition, comprising greater than 0.2% by weight a graphene quantum dot nanosurfactant, a printable material, and a solvent, wherein the printable material is dispersed in the solvent by the graphene quantum dot nanosurfactant, and a method of preparing an ink composition. Advantageously, the present ink composition may be printed onto 2D and 3D substrates to form printed films with improved mechanical stability and photoconductance.

Abstract: A conductive adhesive film according to an embodiment includes: an adhesive base layer including first and second major surfaces facing each other; and a plurality of discrete individual particles distributed in the adhesive base layer, wherein outer surfaces of the particles are coated with metal at least in part to form metal coatings, and the metal coatings are connected with one another and are extended between the first and second major surfaces, such that an electrically and mechanically continuous three-dimensional porous network of the metal is formed.

Abstract: A conductive paste that can reduce an increase in electrical resistance caused by stretching of a wiring when the wiring of an electrical circuit and/or an electronic circuit is formed on a surface of a stretchable and/or bendable base material. The stretchable conductive paste includes (A) surface-treated silver particles and (B) a thermoplastic resin. The (A) surface-treated silver particles include a surface-treated layer.

Abstract: A bio-electrode composition contains (A) a silicone bonded to an ionic polymer and having a structure containing a T unit shown by the following general formula (T1): (R0SiO3/2) (T1), the structure excluding a cage-like structure. In the formula, R0 represents a linking group to the ionic polymer. The ionic polymer is a polymer containing a repeating unit having a structure selected from the group consisting of salts of ammonium, lithium, sodium, potassium, and silver formed with any of fluorosulfonic acid, fluorosulfonimide, and N-carbonyl-fluorosulfonamide. Thus, the present invention provides a bio-electrode composition capable of forming a living body contact layer for a bio-electrode which is excellent in electric conductivity, biocompatibility, stretchability, and adhesion, soft, light-weight, and manufacturable at low cost, and which prevents significant reduction in the electric conductivity even when wetted with water or dried.

Abstract: Provided is a new composition of matter for phosphorescent emitters containing a chelating ligand including five or more fused carbocyclic or heterocyclic rings that form two bonds to a metal forming a 7-membered chelate. This fused ring structure provides added rigidity to the molecule for enhanced stability in an OLED device and improve photophysical properties.

Abstract: The present invention relates to a method of manufacturing non-sintered liquid metal ink, and more particularly, to a method of manufacturing liquid metal ink manufactured without a sintering process. The method of manufacturing liquid metal ink according to an embodiment of the present invention includes: (a) inputting a solvent into liquid metal in a container at room temperature; (b) performing oxide film-removing treatment on the liquid metal of step (a); and (c) dispersing the liquid metal that has undergone step (b) in a form of nanoparticles through ultrasonic treatment.

Abstract: Core-shell microparticles, along with methods of their fabrication and use, are provided. The core-shell microparticles may include a core comprising a first metallic material having a first chromium content and a shell surrounding the core and comprising a second metallic material having a second chromium content that is less than the first chromium content. For example, the first chromium content may be 5% by weight or greater of elemental chromium within the first metallic material.

Abstract: The present invention provides two-dimensional polymers P1 and P2 of pyromellitic diimide and hexaamino benzene and derivatives thereof, from monomer of Formula (M), which are used to synthesize composites for supercapacitor applications.

Abstract: Provided herein is a composition for eutectic metal alloy nanoparticles having an average particle size ranging from about 0.5 nanometers to less than about 5000 nanometers and at least one organoamine stabilizer. Also provided herein is a process for preparing eutectic metal alloy nanoparticles comprising mixing at least one organic polar solvent, at least one organoamine stabilizer, and a eutectic metal alloy to create a mixture; sonicating the mixture at a temperature above the melting point of the eutectic metal alloy; and collecting a composition comprising a plurality of eutectic metal alloy nanoparticles having an average particle size ranging from about 0.5 nanometers to less than about 5000 nanometers. Further disclosed herein are hybrid conductive ink compositions comprising a component comprising a plurality of metal nanoparticles and a component comprising a plurality of eutectic metal alloy nanoparticles.

Abstract: The disclosure provides ink compositions that comprise a 2D material and a solvent and the method to fabricate such compositions. The disclosure also provides the composition and method of fabricating 3D MSCs comprising such ink compositions. Additionally, the disclosure provides a conducting material comprising a battery composition, a 2D material, and a solvent that results in the formation of a composition that may be used for 3D printing of batteries.

Abstract: A modified conductive structure includes a conductive substrate and a polymer film disposed over a surface of the polymer film. A chemical bond exists between the polymer film and the conductive substrate, and the polymer film includes repeating units as shown below: wherein A is an antifouling molecule group; B is a sulfur-containing group or a nitrogen-containing group; R is a single bond or a first linking group; C is -L-E, wherein L is a second linking group, E is an enzyme unit; x and z are each independently 0 or an integer from 1 to 10000, and y is an integer from 1 to 10000; o is 0 or an integer from 1 to 50, and when o is an integer from 1 to 50, m and n are each independently 0 or an integer from 1 to 50.

Abstract: A variety of polymeric composites with tunable mechanical stiffness and electrical conductivity are claimed herein. For example, the composite may have an elastomeric matrix, a plurality of tunable particles, and a plurality of conductive fibers embedded in the matrix. The composites may also be a tunable foam matrix and an elastomeric matrix. In some embodiments, the composites are a low melting point alloy (LMPA) foam infiltrated by an elastomer, whose stiffness can be tuned by more than two orders of magnitude through external heating. In other embodiments, the composite may be a conductive particle-fiber-matrix three-component composite capable of changing its elastic rigidity rapidly and reversibly when powered with electrical current.

Abstract: A bio-electrode, excellent in electric conductivity and biocompatibility, light-weight, manufacturable at low cost, and free from large lowering of the electric conductivity even though it is wetted with water or dried, includes an electro-conductive base material and a living body contact layer formed on the electro-conductive base material. The living body contact layer is a cured material of a bio-electrode composition including (A) an ionic material and (C) a metal powder, wherein the component (A) is a polymer compound containing a repeating unit-a having a structure selected from an ammonium salt, a sodium salt, a potassium salt, and a silver salt of any of fluorosulfonic acid, fluorosulfonimide, and fluorosulfonamide.

Abstract: The present application relates to an electrochromic composite, an electrochromic device comprising the same, and a method for manufacturing an electrochromic device.

Abstract: A copper-based ink contains copper acetate, 3-dimethylamino-1,2-propanediol and a silver salt. The ink may be coated on a substrate and decomposed on the substrate to form a conductive copper coating on the substrate. The ink provides micron-thick traces and may be screen printed and thermally sintered in the presence of up to about 500 ppm of oxygen or photo-sintered in air to produce highly conductive copper features. Sintered copper traces produced from the ink have improved air stability, and have improved sheet resistivity for 5-20 mil wide screen-printed lines with excellent resolution.

Abstract: Methods for producing the amorphous metal oxide semiconductor layer where amorphous metal oxide semiconductor layer is formed by use of a precursor composition containing a metal salt, a primary amide, and a water-based solution. The methodology for producing the amorphous metal oxide semiconductor layer includes applying the precursor composition onto a substrate to form a precursor film, and firing the film at a temperature of 150° C. or higher and lower than 300° C.

Abstract: A semiconductor nanocrystal including an anion of an inorganic metal salt and a first organic ligand bound to a surface of the semiconductor nanocrystal, wherein the first organic ligand includes a substituted or unsubstituted C6 to C30 aromatic ring group and a carboxylate, a substituted or unsubstituted C3 to C30 aromatic hetero cyclic group and a carboxylate, or a combination thereof.

Abstract: A novel polymer positive temperature coefficient (PPTC) material, device, and method of fabrication. One example of polymer positive temperature coefficient (PPTC) includes a polymer matrix, the polymer matrix comprising a first polymer. The PPTC material may further include a conductive filler, disposed in the polymer matrix; and at least one polymer filler, dispersed within the polymer matrix. The at least one polymer filler may comprise a second polymer, different from the first polymer, wherein the at least one polymer comprises a first melting temperature, and wherein the second polymer comprises a second melting temperature, the second melting temperature exceeding the first melting temperature by at least 20 C.

Abstract: This invention relates to a thin-film transistor including, a dielectric layer having a first side and an opposed second side; a source electrode, a drain electrode separated from the source electrode, and a semiconductor component disposed between and in contact with the source electrode and the drain electrode, the source electrode, the drain electrode and the semiconductor component being disposed adjacent the first side of the dielectric layer; and a gate electrode disposed adjacent the second side of the dielectric layer opposite the semiconductor component; wherein the semiconductor component comprises one or more n-type organic semiconductor materials based on arene-bis(dicarboximide)s, and wherein the thin-film transistor has a channel length, measured as the shortest path from the source electrode to the drain electrode, of no more than 20 ?m.

Abstract: A molecular ink contains a silver carboxylate, an organic amine compound, an organic polymer binder, a surface tension modifier, and a solvent. The ink may be used to produce conductive silver traces on a substrate for use in fabricating electronic devices. The ink is particularly useful for producing conductive silver traces on a shapeable (e.g. stretchable) substrate in a low temperature sintering process.