Abstract: The present invention relates to an amorphous oxide and a thin film transistor using the amorphous oxide. In particular, the present invention provides an amorphous oxide having an electron carrier concentration less than 1018/cm3, and a thin film transistor using such an amorphous oxide. In a thin film transistor having a source electrode 6, a drain electrode 5, a gate electrode 4, a gate insulating film 3, and a channel layer 2, an amorphous oxide having an electron carrier concentration less than 1018/cm3 is used in the channel layer 2.

Abstract: An ammonia synthesis catalyst having high activity is obtained by having a two-dimensional electride compound having a lamellar crystal structure such as Ca2N support a transition metal. However, since the two-dimensional electride compound is unstable, the stability of the catalyst is low. In addition, in cases where a two-dimensional electride compound is used as a catalyst support, it is difficult to shape the catalyst depending on reactions since the two-dimensional electride compound has poor processability. A composite which includes a transition metal, a support and a metal amide compound, wherein the support is a metal oxide or a carbonaceous support; and the metal amide compound is a metal amide compound represented by general formula (1). M(NH2)x . . . (1) (In general formula (1), M represents at least one metal atom selected from the group consisting of Li, Na, K, Be, Mg, Ca, Sr, Ba and Eu; and x represents the valence of M.

Abstract: Provided is a novel production system for a product selected from a nitrogen-containing product and a fermented and cultured product that does not involve (or can minimize) the transport of liquid ammonia.

Abstract: Provided is a novel production system that does not involve, or can minimize, the transport of liquid ammonia in the production of an organic compound or the production of a microorganism by microbial fermentation. A production system for an organic compound or a microorganism includes: an ammonia synthesis apparatus in which an ammonia-containing gas is synthesized by reaction of a source gas containing hydrogen and nitrogen in the presence of a supported ruthenium catalyst; and a culture apparatus that cultures a microorganism having organic compound productivity using ammonia originating from the ammonia-containing gas obtained by using the ammonia synthesis apparatus.

Abstract: The method for producing a perovskite metal oxynitride of the present invention, comprises: a hydrogenation step (A) of forming a perovskite oxyhydride in which an oxide ion (O2?) and a hydride ion (H?) coexist, by reducing a perovskite oxide through a reductive oxygen elimination reaction using a metal hydride; and a nitriding step (B) of forming a perovskite oxynitride containing a nitride ion (N3?) by heat-treating the perovskite oxyhydride in the presence of a nitrogen source substance at a temperature of 300° C. or higher and 600° C. or lower and exchanging the hydride ion (H?) for a nitride ion (N3?).

Abstract: A thin film of metal oxide includes zinc (Zn); tin (Sn); silicon (Si); and oxygen (O). In terms of oxide, based on 100 mol % of total of oxides of the thin film, SnO2 is greater than 15 mol % but less than or equal to 95 mol %.

Abstract: A light-emitting device includes a pair of first electrodes arranged separated from and opposing each other on a first surface of a substrate; a light-emitting layer arranged on at least one of the first electrodes; a second electrode arranged on the light-emitting layer; and a bridge layer connecting the first electrodes. The bridge layer is formed of a material having a resistance that falls within a range of 100 k? to 100 M?.

Abstract: A novel amorphous oxide applicable, for example, to an active layer of a TFT is provided. The amorphous oxide comprises microcrystals.

Abstract: If a conductive mayenite compound having a large specific surface area is obtained, the usefulness thereof in respective applications is remarkably increased. A conductive mayenite compound powder having a conduction electron density of 1015 cm?3 or more and a specific surface area of 5 m2g?1 or more is produced by: the following steps: (1) forming a precursor powder by subjecting a mixture of a starting material powder and water to a hydrothermal treatment; (2) forming a mayenite compound powder by heating and dehydrating the precursor powder; (3) forming an activated mayenite compound powder by heating the compound powder in an inert gas atmosphere or in a vacuum; and (4) injecting electrons into the mayenite compound through a reduction treatment by mixing the activated mayenite compound powder with a reducing agent.

Abstract: The ammonia synthesis catalyst of the present invention, comprises: a powder of a perovskite oxyhydride having hydride (H?) incorporated therein as a support; and a metal or a metal compound exhibiting a catalytic activity for ammonia synthesis, supported on the support, and the perovskite oxyhydride is represented by ATiO3-xHx (wherein A represents Ca, Sr, or Ba, and 0.1?x?0.6).

Abstract: A method for depositing a magnesium oxide thin film on a substrate by a laser abrasion method using a sintered body or single crystal of magnesium oxide as a target. In this method, a flat processed film made of magnesium oxide having a (111) plane as its front surface is prepared, using a substrate made of strontium titanate having a (111) plane as its principal surface or yttria-stabilized zirconia having a (111) plane as its principal surface, by directly depositing a film on the principal surface of the substrate and epitaxially growing the film.

Abstract: The invention related to a material that can stably hold an imide anion (NH2?) therein even in the atmosphere or in a solvent, and a method for synthesizing the material and a use of the material. A mayenite-type compound into which imide anions are incorporated at a concentration of 1×1018 cm?3 or more are provided. The mayenite-type compound can be produced by heating a mayenite-type compound including electrons or free oxygen ions in a cage thereof, in liquefied ammonia at 450 to 700° C. and at a pressure of 30 to 100 MPa. The compound has properties such that active imide anions can be easily incorporated into the compound and the active imide anions can be easily released in the form of ammonia from the compound, and the compound has chemical stability.

Abstract: The method for producing a perovskite metal oxynitride of the present invention, comprises: a hydrogenation step (A) of forming a perovskite oxyhydride in which an oxide ion (O2?) and a hydride ion (H?) coexist, by reducing a perovskite oxide through a reductive oxygen elimination reaction using a metal hydride; and a nitriding step (B) of forming a perovskite oxynitride containing a nitride ion (N3?) by heat-treating the perovskite oxyhydride in the presence of a nitrogen source substance at a temperature of 300° C. or higher and 600° C. or lower and exchanging the hydride ion (H?) for a nitride ion (N3?).

Abstract: A phosphor is represented by the general formula aMIX.MII1-xMIMVO4:(Re)x where MI is at least one atomic element selected from the group consisting of K, Li, Na, Rb, Cs, Fr, Cu, and Ag, with K being essential; MII is at least one atomic element selected from the group consisting of Mg, Ca, Sr, Ba, Ra, Mn, Zn, Cd, and Sn; MV is at least one atomic element selected from the group consisting of P, V, Nb, Ta, As, Sb, and Bi; X is at least one halogen element, with F being essential; Re is at least one atomic element selected from the group consisting of rare earth elements, with Eu being essential; and a is in the range 0.6?a?1.4.

Abstract: A novel amorphous oxide applicable, for example, to an active layer of a TFT is provided. The amorphous oxide comprises microcrystals.

Abstract: If a conductive mayenite compound having a large specific surface area is obtained, the usefulness thereof in respective applications is remarkably increased. A conductive mayenite compound powder having a conduction electron density of 1015 cm?3 or more and a specific surface area of 5 m2g?1 or more is produced by: (1) a step for forming a precursor powder by subjecting a mixture of a starting material powder and water to a hydrothermal treatment; (2) a step for forming a mayenite compound powder by heating and dehydrating the precursor powder; (3) a step for forming an activated mayenite compound powder by heating the compound powder in an inert gas atmosphere or in a vacuum; and (4) a step for injecting electrons into the mayenite compound through a reduction treatment by mixing the activated mayenite compound powder with a reducing agent.

Abstract: A catalyst is provided which is used for continuously synthesizing ammonia using a gas containing hydrogen and nitrogen as a raw material, wherein a transition metal which exhibits catalytic activity is supported by a support, and the support is a two-dimensional electride or a precursor thereof. The two-dimensional electride or the precursor thereof is a metal nitride represented by MxNyHz (M represents one or two or more of Group II metals selected from the group consisting of Mg, Ca, Sr and Ba, and x, y and z are in ranges of 1?x?11, 1?y?8, and 0?z?4 respectively, in which x is an integer, and y and z are not limited to an integer) or M3N2 (M is the same as above), or a metal carbide selected from the group consisting of Y2C, Sc2C, Gd2C, Tb2C, Dy2C, Ho2C and Er2C.

Abstract: A metal-supporting catalyst for decomposing ammonia into hydrogen and nitrogen. The catalyst shows a high performance with a low cost and being advantageous from the viewpoint of resources, and an efficient method for producing hydrogen using the catalyst. The catalyst catalytically decomposes ammonia gas to generate hydrogen. The hydrogen generation catalyst includes, as a support, a mayenite type compound having oxygen ions enclosed therein or a mayenite type compound having 1015 cm?3 or more of conduction electrons or hydrogen anions enclosed therein, and metal grains for decomposing ammonia are supported on the surface of the support. Hydrogen is produced by continuously supplying 0.1-100 vol % of ammonia gas to a catalyst layer that comprises the aforesaid catalyst, and reacting the same at a reaction pressure of 0.01-1.0 MPa, at a reaction temperature of 300-800° C. and at a weight hourly space velocity (WHSV) of 500/mlg?1h?1 or higher.

Abstract: A thin film of amorphous metal oxide includes zinc (Zn), silicon (Si) and oxygen (O), the atomic ratio of Zn/(Zn+Si) being 0.30 to 0.95.

Abstract: [Problem] Many oxide-ion conductors exhibit high functionality at high temperatures due to the large weight and charge of oxide ions, and it has been difficult to achieve the functionality at low temperatures. [Solution] A perovskite oxide having hydride ion conductivity, at least 1 at % of the oxide ions (O2?) contained in a titanium-containing perovskite oxide being substituted with hydride ions (H?). This oxide, in which negatively charged hydride ions (H?) are used for the ionic conduction, has both hydride ion conductivity and electron conductivity. As a starting material, the titanium-containing perovskite oxide is kept together with a powder of an alkali metal or alkaline-earth metal hydride selected from LiH, CaH2, SrH2, and BaH2 in a temperature range of 300° C. or higher and lower than the melting point of the hydride in a vacuum or an inert gas atmosphere to substitute some of the oxide ions in the oxide with the hydride ions, resulting in the introduction of the hydride ions into oxygen sites.