A solid electrolyte includes an ion conductor represented by at least one of Formulae 1 to 3,

Li.sub.1+3xM1.sub.1-xO.sub.2   Formula 1

wherein, in Formula 1, M1 is a trivalent element, and 0<x<1,

L.sub.1-yM2O.sub.2-yX.sub.y   Formula 2

wherein, in Formula 2, M2 is a trivalent element, X is at least one of a halogen atom or a pseudohalogen, and 0<y<1,

Li.sub.1-z(a-3)M3.sub.1-zD.sub.zO.sub.2   Formula 3

wherein, in Formula 3, M3 is a trivalent element, D is at least one of a monovalent element to a hexavalent element, and 0<z<1.

A novel material and a transistor using a novel material are provided. A composite oxide includes at least two regions, one of which includes In, Zn and an element M1 (the element M1 is one or more of Al, Ga, Si, B, Y, Ti, Fe, Ni, Ge, Zr, Mo, La, Ce, Nd, Hf, Ta, W, Mg, V, Be, and Cu), and the other of which includes In, Zn, and an element M2 (the element M2 is one or more of Al, Ga, Si, B, Y, Ti, Fe, Ni, Ge, Zr, Mo, La, Ce, Nd, Hf, Ta, W, Mg, V, Be, and Cu). The proportion of the element M1 to In, Zn, and the element M1 in the region including the element M1 is less than that of the element M2 to In, Zn, and the element M2 in the region including the element M2. In an analysis of the composite oxide by X-ray diffraction, the diffraction pattern result in the X-ray diffraction is asymmetric with the angle at which the peak intensity of X-ray diffraction is detected as the symmetry axis.

An inorganic composition that is useful as an active ingredient for pharmaceuticals and has excellent stability comprises hydrozincite-containing zinc carbonate hydroxide hydrate produced by drying a precipitate. The precipitate is obtained by adding aqueous zinc nitrate solution, aqueous zinc sulfate solution or aqueous zinc chloride solution and aqueous sodium hydroxide solution dropwise to aqueous sodium hydrogen carbonate solution, a pH of the aqueous sodium hydrogen carbonate solution being maintained within a range of 6.5 to 9 by means of a pH controller. The hydrozincite-containing zinc carbonate hydroxide hydrate has an amount of dissolved Zn.sup.2+ ions of not less than 0.1 μg/m.sup.2 but not more than 7.33 μg/m.sup.2 and pH of not less than 7.2 and less than 8.3 after a dissolution test using stirring method.

The present disclosure provides a photochromic nanomaterial capable of blocking ultraviolet rays with a general formula of M.sub.aO.sub.bX.sub.c, a production method and use thereof, wherein the M, O and X and a, b and c are as defined herein. The nanomaterial may be prepared by the following method: heating a mixture of an M-containing cation source compound, a polyol, a surfactant and first solvent under agitation, to obtain a hot first solution; mixing an X-containing anion source compound and a second solvent, to obtain a second solution; injecting the second solution into the hot first solution, to perform a reaction and obtain a reaction mixture; and subjecting the reaction mixture to post-treatment. The nanomaterial of the present disclosure can block 80% or more of UV rays, in particular, may change to a transparent dark color and reduce the transmittance under irradiation by strong light, whereas may restore colorless transparent state under irradiation by weak or non-strong light. Additionally, the present disclosure may have following features: a simple processing flow, low cost, high productivity, applicability in the industrial production, etc.

Provided is a method for producing calcium zincate. The method comprises: an extraction step: mixing a ground zinc-containing raw material with an extracting agent, followed by filtration to obtain an extract, wherein the extracting agent is a mixed aqueous solution of ammonia and {NH.sub.4HCO.sub.3 and/or (NH.sub.4).sub.2CO.sub.3; optionally, purifying the extract; a decarburization step: adding calcium oxide and/or calcium hydroxide to the extract, stirring, and filtering to obtain a first solid and a first filtrate; a calcium zincate synthesis step: adding calcium hydroxide and/or calcium oxide to the first filtrate, stirring to react, and filtering to obtain a second solid and a second filtrate; optionally, rinsing the second solid with water; a drying step: drying the second solid to obtain the final calcium zincate product.

Provided is a method for producing calcium zincate. The method comprises: an extraction step: mixing a ground zinc-containing raw material with an extracting agent, followed by filtration to obtain an extract, wherein the extracting agent is a mixed aqueous solution of ammonia and {NH.sub.4HCO.sub.3 and/or (NH.sub.4).sub.2CO.sub.3; optionally, purifying the extract; a decarburization step: adding calcium oxide and/or calcium hydroxide to the extract, stirring, and filtering to obtain a first solid and a first filtrate; a calcium zincate synthesis step: adding calcium hydroxide and/or calcium oxide to the first filtrate, stirring to react, and filtering to obtain a second solid and a second filtrate; optionally, rinsing the second solid with water; a drying step: drying the second solid to obtain the final calcium zincate product.

The present invention provides composition comprising a metal oxide semiconductor nanomaterial.

A core-shell quantum dot including a core including a first semiconductor nanocrystal, the first semiconductor nanocrystal including zinc, tellurium, and selenium and a semiconductor nanocrystal shell disposed on the core, the semiconductor nanocrystal shell including zinc and selenium, sulfur, or a combination thereof and a production thereof are disclosed, wherein the core-shell quantum dot does not include cadmium, lead, mercury, or a combination thereof, wherein the core-shell quantum dot(s) includes chlorine, wherein in the core-shell quantum dot, a mole ratio of chlorine with respect to tellurium is greater than or equal to about 0.01:1 and wherein a quantum efficiency of the core-shell quantum dot is greater than or equal to about 10%.

The present invention provides composition comprising a metal oxide semiconductor nanomaterial coated or dispersed with a hemostatic polymer.

A quantum dot including a nanoparticle template including a first semiconductor nanocrystal including a Group II-VI compound, a quantum well including a second semiconductor nanocrystal disposed on the nanoparticle template, the second semiconductor nanocrystal including a Group IIIA metal excluding aluminum and a Group V element; and a shell comprising a third semiconductor nanocrystal disposed on the quantum well, the third semiconductor nanocrystal including a Group II-VI compound, wherein the quantum dot does not include cadmium, a band gap energy of the second semiconductor nanocrystal is less than a band gap energy of the first semiconductor nanocrystal, the band gap energy of the second semiconductor nanocrystal is less than a band gap energy of the third semiconductor nanocrystal, and the quantum dot includes an additional metal including an alkali metal, an alkaline earth metal, aluminum, iron, cobalt, nickel, copper, zinc, or a combination thereof.