Abstract: An adhesive or encapsulant composition, having a siloxane polymer having a molecular weight of from 300 to 150,000 g/mol and having a viscosity of from 1000 to 100,000 mPa-sec at 5 rpm viscometer and at 25° C., and a curing agent that aids in curing the siloxane polymer upon the application of ultraviolet light. The composition is transmissive to visible light with an optical transmissivity of 95% or more in the visible spectrum at a thickness of 1 mm or less, and wherein the siloxane polymer is a material formed without hydrosilylation and has less than 5 mol % of Si—OH groups compared to all groups bound to Si therein, and substantially no Si—H bonds.

Abstract: An integrated LED structure and a method of adjusting the emission spectrum of an integrated LED structure, for photobiological process is disclosed. The structure comprises a substrate; a plurality of optically isolated and electrically non-independent light emission areas integrated on the substrate; a light emitting semiconductor source of a first type mounted in the emission area(s); a light emitting semiconductor source of a second type mounted in the emission area(s); an electrical circuit layer for connecting the light emitting semiconductor sources in serial fashion for each emission area; and wavelength conversion materials. The emission areas are controlled with a common electrical drive current, and the emission output can be tuned by adjusting the common current value, to enable use of one luminaire for a large variety of biomass growing applications.

Abstract: This application relates to oxide particles, preferably transition metal oxide particles, made via the application of a voltage across an electrolyte solution. The electrolyte solution includes a transition metal salt dissolved in water, and preferably also includes a compound for increasing the electrical conductivity of the electrolyte. The particles made by the processes disclosed herein, can have sizes in the micrometer or nanometer ranges. The oxide particles can have a variety of uses, including for charge storage devices. As an example, manganese oxide particles, and methods for making the same, are disclosed for a variety of uses including lithium ion batteries.

Abstract: Phenoxyphenylsilane monomers were synthesized and polymerized. The polymers have high refractive indices and excellent UV and thermal stability. Their water and oxygen permeability is lower than commercial phenyl silicone elastomers. They show good compatibility with metal oxide nanoparticles. The polymers of the invention are suitable as LED encapsulant, as light guide material in CMOS image sensors, in OLED devices, lasers and in other optical applications.

Abstract: An adhesive or encapsulant composition, having a siloxane polymer having a molecular weight of from 300 to 150,000 g/mol and having a viscosity of from 1000 to 100,000 mPa-sec at 5 rpm viscometer and at 25° C., and a curing agent that aids in curing the siloxane polymer upon the application of ultraviolet light. The composition is transmissive to visible light with an optical transmissivity of 95% or more in the visible spectrum at a thickness of 1 mm or less, and wherein the siloxane polymer is a material formed without hydrosilylation and has less than 5 mol % of Si—OH groups compared to all groups bound to Si therein, and substantially no Si—H bonds.

Abstract: Methods and materials are disclosed for making three dimensional articles via 3d printing. The methods can include printing both electrically insulating and electrically conducting portions, transparent, reflective or opaque portions, transparent portions having different refractive indices, portions of different colors, and where the various deposited portions are UV or heat curable, and optionally comprise particles, such as metallic particles in electrically conductive portions and ceramic particles in electrically insulating portions. A variety of 3D articles can be made, such as transparent articles such as eyeglasses, or electronics articles such as portions of smartphones, tablets or the like.

Abstract: An integrated LED structure and a method of adjusting the emission spectrum of an integrated LED structure, for photobiological process is disclosed. The structure comprises a substrate; a plurality of optically isolated and electrically non-independent light emission areas integrated on the substrate; a light emitting semiconductor source of a first type mounted in the emission area(s); a light emitting semiconductor source of a second type mounted in the emission area(s); an electrical circuit layer for connecting the light emitting semiconductor sources in serial fashion for each emission area; and wavelength conversion materials. The emission areas are controlled with a common electrical drive current, and the emission output can be tuned by adjusting the common current value, to enable use of one luminaire for a large variety of biomass growing applications.

Abstract: A display has a plurality of pixels in a matrix, the pixels each comprising a liquid crystal layer and/or light emitting diode layer, a plurality of substrates, at least a first substrate being optically transmissive to visible light, an electrode formed on one of the substrates and having electrically conductive material that has an electrical resistivity of less than 200 ?/sq and that comprises a siloxane material and particles having an average particle size of less than 10 microns.

Abstract: An integrated LED structure and a method of adjusting the emission spectrum of an integrated LED structure, for photobiological process. The structure comprises a substrate; a plurality of optically isolated and electrically non-independent light emission areas integrated on the substrate; a light emitting semiconductor source of a first type mounted in the emission area(s); a light emitting semiconductor source of a second type mounted in the emission area(s); an electrical circuit layer for connecting the said light emitting semiconductor sources in serial fashion for each emission area; and wavelength conversion materials. The emission areas are controlled with a common electrical drive current, and the emission output can be tuned by adjusting the common current value, to enable use of one luminaire for a large variety of biomass growing applications.

Abstract: An optical coating has a siloxane polymer and noble metal particles. The coating has an index of refraction that is different for in-plane and out-of-plane. The coating has reverse optical dispersion within the visible wavelength range, and preferably a maximum absorption peak between 400-1000 nm wavelength range is greater than 700 nm. In one example the metal particles are noble metal nanorods having an average particle width of less than 400 nm.

Abstract: A composition comprising a plurality of coated metal particles with a metal core surrounded by nested shells formed by an electrically conductive layer and by a barrier layer, at least one of the shells being formed by electroless plating. The invention also comprises a method of producing such compositions as well as the use of the composition in, for example, crystalline-silicon solar cell devices having contact structures formed on one or more surfaces of a solar cell device, such as those used in back contact solar cell devices or emitter wrap through (EWT) solar cell devices.

Abstract: An LED lamp is formed from a die substrate wherein the substrate has formed thereon a semiconductor material, an electrode for the application of a bias across the semiconductor material for causing light to be emitted therefrom, and an adhesive that bonds the die substrate to a support substrate, wherein the adhesive is a polymerized siloxane polymer having a thermal conductivity of greater than 0.1 watts per meter kelvin (W/(m·K)) wherein the adhesive is not light absorbing, wherein the siloxane polymer has silicon and oxygen in the polymer backbone, as well as aryl or alky groups bound thereto, and wherein the adhesive further comprises particles having an average particle size of less than 100 microns.

Abstract: A LED structure, a lighting fixture and a method of providing white light illumination. The LED structure comprises a substrate; a light emitting area defined on the substrate as a cavity; a first type of light emitting semiconductor source with bactericidal characteristics mounted in the cavity; a second type of light emitting semiconductor source mounted in the cavity with ability to excite the wavelength conversion material to generate white light; and a wavelength conversion material layer formed on top of the light emitting semiconductor sources. The invention enables disinfection by a lighting source or a luminaire visibly apparent to human as a white light source that is neither harmful to a human nor creates discomfort.

Abstract: An integrated LED structure and a method of adjusting the emission spectrum of an integrated LED structure, for photobiological process. The structure comprises a substrate; a plurality of optically isolated and electrically non-independent light emission areas integrated on the substrate; a light emitting semiconductor source of a first type mounted in the emission area(s);a light emitting semiconductor source of a second type mounted in the emission area(s); an electrical circuit layer for connecting the said light emitting semiconductor sources in serial fashion for each emission area; and wavelength conversion materials. The emission areas are controlled with a common electrical drive current, and the emission output can be tuned by adjusting the common current value, to enable use of one luminaire for a large variety of biomass growing applications.

Abstract: Phenoxyphenylsilane monomers were synthesized and polymerized. The polymers have high refractive indices and excellent UV and thermal stability. Their water and oxygen permeability is lower than commercial phenyl silicone elastomers. They show good compatibility with metal oxide nanoparticles. The polymers of the invention are suitable as LED encapsulant, as light guide material in CMOS image sensors, in OLED devices, lasers and in other optical applications.

Abstract: Metal oxide particles, preferably crystalline transition metal oxide particles, made via a continuous process comprising application of a voltage across an electrolyte solution. The electrolyte solution includes a transition metal salt dissolved in water, and preferably also includes a compound for increasing the electrical conductivity of the electrolyte. The particles made by the processes disclosed herein, can have sizes in the micrometer or nanometer ranges. The oxide particles can have a variety of uses, including for charge storage devices. As an example, crystalline manganese oxide nanoparticles, and methods for making the same, are disclosed for a variety of uses including lithium ion batteries.

Abstract: A LED structure and a method of providing pulsed light energy synchronized with the photosynthesis process by an integrated LED structure. The LED structure comprises a substrate; a plurality of optically independent light emission areas on substrate; a light emitting semiconductor source of a first type mounted in part of the emission area(s); a light emitting semiconductor source of a second type mounted in part of the emission area(s); and wavelength conversion materials of at least two types. The first type is formed on the top of the said first type of light emitting semiconductor sources and the second type is formed on the top of the said second type of light emitting semiconductor sources. The LED structure suits grow light systems that require dynamic luminaires with adjustable spectrum, tunable intensity and controllable pulse mode operation.

Abstract: An integrated LED structure and a method of adjusting the emission spectrum of an integrated LED structure, for photobiological process. The structure comprises a substrate; a plurality of optically isolated and electrically non-independent light emission areas integrated on the substrate; a light emitting semiconductor source of a first type mounted in the emission area(s); a light emitting semiconductor source of a second type mounted in the emission area(s); an electrical circuit layer for connecting the said light emitting semiconductor sources in serial fashion for each emission area; and wavelength conversion materials. The emission areas are controlled with a common electrical drive current, and the emission output can be tuned by adjusting the common current value, to enable use of one luminaire for a large variety of biomass growing applications.

Abstract: An adhesive or encapsulant composition, having a siloxane polymer having a molecular weight of from 300 to 150,000 g/mol and having a viscosity of from 1000 to 100,000 mPa-sec at 5 rpm viscometer and at 25° C., and a curing agent that aids in curing the siloxane polymer upon the application of ultraviolet light. The composition is transmissive to visible light with an optical transmissivity of 95% or more in the visible spectrum at a thickness of 1 mm or less, and wherein the siloxane polymer is a material formed without hydrosilylation and has less than 5 mol % of Si—OH groups compared to all groups bound to Si therein, and substantially no Si—H bonds.

Abstract: A siloxane polymer is made by providing a first compound having the chemical formula SiR1aR24-a where a is from 1 to 3, R1 is a reactive group, and R2 is an alkyl group or an aryl group, and providing a second compound having the chemical formula SiR3bR4cR54-(b+c) where R3 is a cross-linking functional group, R4 is a reactive group, and R5 is an alkyl or aryl group, and where b=1 to 2, and c=1 to (4?b). The first and second compounds are polymerized together to form a siloxane polymer. The siloxane polymer can be then used in a final composition where the siloxane polymer comprises from 5 to 100% by weight, and filler (e.g. microparticles, nanoparticles, nanowires, etc.) comprises from zero to 95% by weight. The siloxane polymer composition is useful in a variety of areas such as an adhesive, e.g. as a die attach adhesive in semiconductor (e.g. LED) packaging applications, encapsulants, optical coatings, protective coatings, and other applications.