15423 results about "Chemical formula" patented technology

A compound for an organic optoelectronic device represented by Chemical Formula 1

wherein, in Chemical Formula 1, variables A, Y¹ to Y⁴, X¹, m, R¹ to R⁴, L¹ to L³, n1 to n3, Ar¹ and Ar² are described in the specification.

The present invention relates to a cross-linker for photoresist compositions which is suitable for a photolithography process using KrF (248 mn), ArF (193 mn), E-beam, ion beam or EUV light sources. Preferred cross-linkers, according to the present invention, comprise a copolymer of (i) a compound represented by following Chemical Formula 1 and/or (ii) one or more compound(s) selected from the group consisting of acrylic acid, methacrylic acid and maleic anhydride. ##STR1## wherein, R.sub.1 and R.sub.2 individually represent straight or branched C.sub.1-10 alkyl, straight or branched C.sub.1-10 ester, straight or branched C.sub.1-10 ketone, straight or branched C.sub.1-10 carboxylic acid, straight or branched C.sub.1-10 acetal, straight or branched C.sub.1-10 alkyl including at least one hydroxyl group, straight or branched C.sub.1-10 ester including at least one hydroxyl group, straight or branched C.sub.1-10 ketone including at least one hydroxyl group, straight or branched C.sub.1-10 carboxylic acid including at least one hydroxyl group, and straight or branched C.sub.1-10 acetal including at least one hydroxyl group; and R.sub.3 represents hydrogen or methyl.

A compound which has thermal stability and moderate vaporizability and is satisfactory as a material for the CVD or ALD method; a process for producing the compound; a thin film formed from the compound as a raw material; and a method of forming the thin film. A compound represented by the general formula (1) is produced by reacting a compound represented by the general formula (2) with a compound represented by the general formula (3). The compound produced is used as a raw material to form a metal-containing thin film. [Chemical formula 1] (1) [Chemical formula 2] (2) [Chemical formula 3] M_p(NR⁴R⁵)_q(3) (In the formulae, M represents a Group 4 element, aluminum, gallium, etc.; n is 2 or 3 according to cases; R¹ and R³ each represents C_1-6 alkyl, etc.; R² represents C_1-6 alkyl, etc.; R⁴ and R⁵ each represents C_1-4 alkyl, etc.; X represents hydrogen, lithium, or sodium; p is 1 or 2 according to cases; and q is 4 or 6 according to cases.)

This invention provides a kind of magnesium halide adducts, whose general chemical formula is MgX2-mROH-nE-pH2O (I), wherein, X is Cl or Br; R is C1-C12 alkyl, C3-C10 cycloalkyl or C6-C10 aryl; E is dialkoxy hydrocarbon compound as shown in formula (II); m is 1-5; n is 0.005-1.0; p is 0-0.8. In formula (II), R1, R2, R3 and R4 are the same or different, and are H or C1-C10 linear or branched alkyl, C3-C10 cycloalkyl, C6-C10 aryl, C7-C10 alkylaryl or arylalkyl; two or more groups of R1 and R2 can bond into one or several fused rings; H is aryl or alkylaryl or H in benzene ring of arylalkyl can be substituted by halogen.

In a method for forming a wiring of a semiconductor device using an atomic layer deposition, an insulating interlayer is formed on a substrate. Tantalum amine derivatives represented by a chemical formula Ta(NR₁)(NR₂R₃)₃ in which R₁, R₂ and R₃ represent H or C₁-C₆ alkyl group are introduced onto the insulating interlayer. A portion of the tantalum amine derivatives is chemisorbed on the insulating interlayer. The rest of tantalum amine derivatives non-chemisorbed on the insulating interlayer is removed from the insulating interlayer. A reacting gas is introduced onto the insulating interlayer. A ligand in the tantalum amine derivatives chemisorbed on the insulating interlayer is removed from the tantalum amine derivatives by a chemical reaction between the reacting gas and the ligand to form a solid material including tantalum nitride. The solid material is accumulated on the insulating interlayer through repeating the above processes to form a wiring.

A quantum dot composite material and a manufacturing method and an application thereof are provided. The quantum dot composite material includes an all-inorganic perovskite quantum dot and a modification protection on a surface of the all-inorganic perovskite quantum dot. The all-inorganic perovskite quantum dot has a chemical formula of CsPb(Cl_aBr_1-a-bI_b)₃, wherein 0≦a≦1, 0≦b≦1.

A lithium secondary battery includes an electrode assembly having a positive electrode (1), a negative electrode (2) having a negative electrode current collector and a negative electrode active material layer formed on a surface of the negative electrode current collector and composed of a binder and negative electrode active material particles containing silicon and/or a silicon alloy, and a separator (3) interposed between the electrodes. The electrode assembly is impregnated with a non-aqueous electrolyte. The binder contains a polyimide resin represented by the following chemical formula (1):

where R contains at least a benzene ring, and n is within the range of from 10 to 100,000, and the negative electrode active material particles have an average particle size of 5 μm or greater.

Provided are novel organic electroluminescent compounds and organic electroluminescent devices comprising the same as electroluminescent material. Specifically, the organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1):

The organic electroluminescent compounds according to the invention exhibit high luminous efficiency in blue color and excellent life property as a material, so that an OLED having very good operation life can be prepared therefrom.

Provided are a novel organic electroluminescent compound and an organic electroluminescent device using the same. More particularly, the organic electroluminescent compound disclosed herein is represented by Chemical Formula 1:

Since the organic electroluminescent compound disclosed herein exhibits good luminous efficiency and excellent life property, it may be used to manufacture OLED devices having very superior operation life.

A separator membrane for use in silver-zinc batteries is produced by extruding a blend of two fillers with the same chemical formula but different particle size. A polyolefine polymer and a plasticizer are blended and extruded to form a thin sheet of 1 to 10 mil thickness. The plasticizer is then extracted to leave submicron voids in the membrane. Plasticizers are added as processing aids, and can be either soluble or insoluble in water, and include petroleum oils, lubricating oils, fuel oils, and natural oils such as tall oils and linseed oils. The oil are then extracted from the membrane by conventional procedures such as single stage extraction using a suitable solvent. Commercially available wetting agents known to the art such as dodecylphenoxy polyethoxy ethanol and isooctyl phenyl polyethoxy ethanol are coated onto the sheet to improve wettability. The sheet is then dried, and boiled in distilled water for one minute or more, before being finally dried.

The invention discloses a multi-element composite positive electrode material of a Li-ion secondary battery and the preparation method thereof. The multi-element composite positive electrode material with a spherical shape, narrow particle size distribution, consistency equal to or less than 0.3 and tap density equal to or larger than 2.2 g/cm is represented by a chemical formula LiNixCoyMnzO2, where x is not less than 0.5 and not larger than 1, y is not less than 0 and not larger than 0.2, z is not less than 0 and not larger than 0.3, and the summation of x, y and z is equal to 1. The preparation method comprises the following steps: controlling the crystallization and precipitation of Ni, Co and Mn salt solution to obtain Ni-Mn-Co precipitate with narrow particle size distribution and satisfactory consistency and tap density; washing and drying to obtain a precursor; mixing the precursor with a Li compound in deionized water, and drying to obtain a mixed material; sintering the dried material, crushing and classifying to obtain a primary material; and sintering the primary material, screening and classifying to obtain the final product. The method can improve the specific capacity of the material and control the profile and the particle size of the material, thereby improving the material stability.

A red light emitting afterglow photoluminescence phosphor is a rare earth oxysulfide phosphor activated by Europium, which chemical formula is follows: Ln2O2S:Eux,My 0.00001<=x<=0.5 0.00001<=y<=0.3 wherein Ln is at least one selected from the group consisting of Y, La, Gd and Lu; M is a coactivator which is at least one selected from the group consisting of Mg, Ti, Nb, Ta and Gain the chemical formula.

A chip-type light-emitting semiconductor device includes: a substrate 4; a blue LED 1 mounted on the substrate 4; and a luminescent layer 3 made of a mixture of yellow/yellowish phosphor particles 2 and a base material 13 (translucent resin). The yellow/yellowish phosphor particles 2 is a silicate phosphor which absorbs blue light emitted by the blue LED 1 to emit a fluorescence having a main emission peak in the wavelength range from 550 nm to 600 nm, inclusive, and which contains, as a main component, a compound expressed by the chemical formula: (Sr_1-a1-b1-xBa_a1Ca_b1Eu_x)₂SiO₄ (0≦a1≦0.3, 0≦b1≦0.8 and 0<x<1). The silicate phosphor particles disperse substantially evenly in the resin easily. As a result, excellent white light is obtained.

The invention discloses a biomedical TiZrNbTa high-entropy alloy and a preparation method thereof. The high-entropy alloy has a chemical formula of (TiaZrb)x(NbcTad)yMz; the atomic percents of all components are as follows: a not more than 35 at% and not less than 0, b not more than 35 at% and not less than 0, c not more than 35 at% and not less than 0, d not more than 35 at% and not less than 0, a+b=x, c+d=y, x not more than 70 at% and not less than 5, y not more than 70 at% and not less than 5, M is any one or more in V, Mo, Sn, W, Mn, Al, Fe, Co, Ni, Cu, Cr and Zn, z not more than 35 at% and not less than 0, and x+y+z=100. The alloy is higher in strength, excellent in plasticity and low in Young modulus; the components of the alloy is free of poison on human bodies, or are low-toxicity elements to satisfy the biomedical demands; and the high-entropy alloy is broad in application prospect in the aspect of biomedical materials.

A lubricant compound for a magnetic disk is provided which can realize further reduction of the magnetic spacing and moreover, has high reliability under a lower floating amount of the magnetic head involved with the recent rapid increase in the recording density and under extremely severe environmental resistance involved with diversification of the applications.

A lubricant compound is contained in a lubrication layer of a magnetic disk in which at least a magnetic layer, a protective layer, and a lubrication layer are sequentially provided on a substrate, and the lubricant compound contains a component A and a component B expressed by the following chemical formula:

[Chemical formula]1

Component A: X=OH

Component B: X=OCH₂CH(OH)CH₂OH

and a component C made of a specific compound having a phosphezene ring in the structure thereof.