An optical device includes a substrate, a surface-relief grating including grooves and ridges formed on or in the substrate, and an overcoat layer in the grooves of the surface-relief grating. The ridges of the surface-relief grating or the overcoat layer includes a plurality of clusters of metal oxide (e.g., TiO.sub.2 or NbO.sub.x) nanoparticles. Each cluster of the plurality of clusters of metal oxide nanoparticles includes metal oxide nanoparticles dispersed in an inorganic barrier that isolates the metal oxide nanoparticles from other materials of the optical device. The ridges of the surface-relief grating or the overcoat layer is made of a resin material that includes a resin with inorganic content, and/or TiO.sub.x or NbO.sub.x nanoparticles including inorganic-containing ligands. A high-energy treatment process can remove organics surrounding the metal oxide nanoparticles and form the barrier layers that surround clusters of metal oxide nanoparticles.

A composition of matter including a mother solution; an organic ester; an additive agent and deionized water. The mother solution includes a rare earth compound or a metal compound, an organic acid, an organic amine, and deionized water. Also provided is a method of preparing the composition of matter. The method includes: 1) heating deionized water to a temperature of 50-60° C.; adding an organic acid to the deionized water, allowing to dissolve, followed by addition of a rare earth compound or a metal compound, 2-4 hours later, adding an organic amine, heating to a temperature of 70-80° C. and holding; cooling and filtering to yield a mother solution; 2) mixing the mother solution, deionized water, and a catalyst; vacuumizing a resulting mixture, heating the mixture to a temperature of 95-125° C. and holding, following by addition of a polymerization inhibitor and an organic ester; 2-4 hours later, cooling, standing, separating.

A polyamide composition comprising from 25 wt % to 90 wt % of a first polyamide comprising a non-aromatic polyamide formed from 50 wt % to 90 wt % PA66; from 10-50 wt % of a second polyamide comprising a polyamide copolymer; from 0.01-10 wt % of a first stabilizer comprising a lanthanoid-based compound; from 0.01-10 wt % of a second stabilizer comprising a copper-based compound; and from 0-65 wt % filler.

Nontoxic Near infra-red Reflecting (NIR) inorganic pigments, characteristically blue and well suited for the coloration of a wide variety of substrates, for example, plastics and concrete building roofing material, etc., comprise mixed metal silicate having the general formula: La.sub.xSr.sub.1-xCu.sub.1-yLi.sub.ySi.sub.4O.sub.10, where x is equal to 0 to 0.5 and y is equal to 0 to 0.5. These silicates with tetragonal crystal structure are prepared by calcination method in air atmosphere.

Provided is an adhesive film for a display, in which the adhesive film has a high absorption capacity in a near infrared region and maintains a high transmittance in a visible region, thereby guaranteeing visibility.

An acoustic lens for an ultrasonic probe includes a vulcanization-molded article of a rubber composition including a first silicone rubber composition having a plasticity number of 100 or less, and a second silicone rubber composition having a plasticity number of 150 or more and 300 or less.

The invention relates to a composition for producing a solar absorber coating, comprising a silicone resin formulated with: (i) at least one compound selected from the group consisting of black ruthenium oxides and black spinel; and (ii) a glass powder. A method of applying the composition and coatings formed are also provided.

VO.sub.2 and V.sub.2O.sub.5 nano- or micro-materials. The VO.sub.2 nano-materials and micro-materials have an M1 phase structure and oxygen stoichiometry that deviates 2% or less from theoretical stoichiometry. The VO.sub.2 nano-materials and micro-materials may doped with cation dopants and/or anion dopants. The VO.sub.2 and V.sub.2O.sub.5 nano- or micro-materials can be made by hydrothermal methods starting with V.sub.3O.sub.7.H.sub.2O nano- or micro-material. The VO.sub.2 and V.sub.2O.sub.5 nano- or micro-materials can be used as, for example, thermochromic window coatings.

A composite active material particle that can reduce battery resistance when used in an all-solid-state lithium ion battery is disclosed. The composite active material particle comprises: an active material particle; and a lithium ion conducting oxide with which at least part of a surface of the active material particle is coated, wherein the moisture content in the composite active material particle is no more than 319 ppm.

The present invention relates to a method of identifying and/or distinguishing materials by means of luminescence, wherein at least one luminescent substance is incorporated into the material and/or applied onto the material and the luminescence behaviour of the substance is analysed after excitation by means of radiation, and the use thereof for identifying and/or sorting and/or recycling and/or authenticating and/or performing a quality check and/or formulation check on materials.