Abstract: Provided are a material that achieves higher sensitivity and higher resolution of a photoelectric conversion element for imaging, and a photoelectric conversion element for imaging using the above material. The material for a photoelectric conversion element for imaging includes an indolocarbazole compound having a pentacyclic fused-ring structure having two heteroatoms, or an analogue compound thereof. The material is a compound having, as a group bonded to a nitrogen atom or a heteroatom, an alkyl group, a substituted or non-substituted aromatic hydrocarbon group, a substituted or non-substituted ?-electron excess heteroaromatic group, or a linked aromatic group formed by linking of two to six of these aromatic groups.

Abstract: Provided are a material that achieves higher sensitivity and higher resolution of a photoelectric conversion element for imaging, and a photoelectric conversion element for imaging using the above material. A material for a photoelectric conversion element for imaging, the material having a structure of the following general formula (1), wherein L each independently represents a single bond, an aromatic hydrocarbon group having 6 to 30 carbon atoms, or the like; “a” represents the number of substitutions, and represents an integer of 1 to 6; Ar1 each independently represents a group represented by the following formula (2); and Ar2 each independently represents an aromatic heterocyclic group having 3 to 30 carbon atoms and containing a nitrogen-containing six-membered cyclic structure, or the like, provided that a group bonded to L is the aromatic heterocyclic group.

Abstract: According to an embodiment, a silicon nitride sintered body includes silicon nitride crystal grains and a grain boundary phase, and in a case where Raman spectroscopy of a 20 ?m×20 ?m region in a central cross section of the silicon nitride sintered body is performed, two or more peaks are detected in ranges of 780 cm?1 to 810 cm?1 and 1340 cm?1 to 1370 cm?1, and four to six peaks are detected in ranges of 170 cm?1 to 190 cm?1, 607 cm?1 to 627 cm?1, 720 cm?1 to 740 cm?1, and 924 cm?1 to 944 cm?1.

Abstract: The present disclosure relates to a metal complex and use thereof. The metal complex has a structure as shown in a formula (1). The metal complex provided by the present disclosure has advantages of good optical, electrical and thermal stability, high luminous efficiency, long service life, high color saturation and the like, can be used in an organic light-emitting device, particularly can be used as a green light-emitting phosphorescent material, and is possible to be used in the active-matrix organic light-emitting diode (AMOLED) industry.

Abstract: The present application provides a method for preparing lithium bis(fluorosulfonyl)imide, which may include the following steps: (a) a synthesis step; (b) an evaporation step; (c) an extraction step; (d) an alkalinization step; (e) a dehydration step; (f) a desolventization step; (g) a crystallization step; and (h) a drying step; lithium bis(fluorosulfonyl)imide prepared by the method, an electrolytic solution containing the lithium bis(fluorosulfonyl)imide, and a secondary battery thereof.

Abstract: The present disclosure provides a nitrogen-containing compound, an electronic element and an electronic device, which belongs to the technical field of organic materials. The nitrogen-containing compound has a structure of Chemical Formula 1, wherein R1 and R2 are each independently selected from hydrogen or a group represented by Chemical Formula 1-1, and one and only one of R1 and R2 has the group of Chemical Formula 1-1; when R1 or R2 is selected from hydrogen, said R1 and R2 may be replaced by R4. The nitrogen-containing compound can improve the performance of electronic elements.

Abstract: The present disclosure relates to a method for growing a crystal. The method includes: weighting reactants according to a molar ratio of the reactants according to a reaction equation for generating the crystal after a first preprocessing operation is performed on the reactants, wherein the first preprocessing operation includes a roasting operation under 800° C.˜1400° C.; placing the reactants on which a second preprocessing operation has been performed into a crystal growth device, wherein the second preprocessing operation includes at least one of an ingredient mixing operation or a pressing operation at room temperature; introducing a flowing gas into the crystal growth device after sealing the crystal growth device; and activating the crystal growth device to execute a crystal growth to grow the crystal based on Czochralski technique.

Abstract: The present invention provides a polyvinyl alcohol graft copolymer including a polyvinyl alcohol main chain. The polyvinyl alcohol graft copolymer includes branched chains including structural units derived from the following monomers: (a) a fluorine-including ethylenically unsaturated monomer, (b) an ethylenically unsaturated carboxylic acid monomer, and (c) an ethylenically unsaturated amide monomer. The present invention also provides an aqueous binder composition, and an electrode slurry composition including the polyvinyl alcohol graft copolymer.

Abstract: Disclosed are a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.

Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.

Abstract: There are provided a naphthol resin and an epoxy resin that impart characteristics such as high heat resistance, a low dielectric loss tangent, and a low coefficient of thermal expansion (CTE), and an epoxy resin composition including the naphthol resin or the epoxy resin as an essential component, and cured products thereof. A naphthol resin which is represented by the following formula: where R1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and n represents the number of repetitions and is a number of 2 to 10, and in which, in terms of area ratio in GPC measurement, a ratio of components for which n=6 or more is 15% or more, and a ratio of components for which n=1 in GPC is 30% or less, and a hydroxy group equivalent is 260 to 400 g/eq.

Abstract: The present disclosure provides a nitrogen-containing compound, and an organic electroluminescent device and an electronic device including the same, and belongs to the field of organic electroluminescence. A transport group in the nitrogen-containing compound of the present disclosure has an overlapping spatial positional relationship, which can improve the carrier transport properties, and when the material is applied to an organic electroluminescent device, the performance of the organic electroluminescent device can be significantly improved.

Abstract: The present disclosure discloses a method for growing a crystal in oxygen atmosphere. The method includes compensating a weight of a reactant, introducing a flowing gas, improving a volume ratio of oxygen during a cooling process, providing a heater in a temperature field, and optimizing parameters. According to the method, cracking and component deviation of the crystal during a crystal growth process, and without oxygen free vacancy can be solved. The method for growing the crystal has excellent repeatability and crystal performance consistency.

Abstract: Disclosed are a support mechanism and a transport container, the technical field of support and accommodation mechanism is involved, comprising at least one group of supporter, each group of the supporters comprises two opposite support plates, and two of the support plates belonging to a same group are configured to jointly form a placement opening for insertion of a mandrel, wherein a top wall of one of the support plates is provided with a positioning block, and a bottom wall of another corresponding one of the support plates is provided with a positioning slot for insertion of the positioning block.

Abstract: A ceramic circuit board includes a ceramic substrate and a metal plate bonded together via a bonding layer, wherein when the ceramic circuit board is observed through a cross-section defined by a thickness direction and lateral direction of the ceramic circuit board: a side surface of the metal plate has an inclined shape; and the bonding layer has a bonding-layer protruding portion which protrudes by 20 ?m or more and 150 ?m or less from an edge where the bonding layer is in contact with the side surface of the metal plate. The shape and Vickers hardness of the side surface of the metal plate are controlled. The ceramic substrate is preferably a silicon nitride substrate.

Abstract: A method for preparing lithium bis(fluorosulfonyl)imide, including (1) adding an organic solvent and an absorbent A to a reaction kettle, then adding part of an ammonia source, and finally adding SO2X2 and a remaining ammonia source simultaneously for reaction, to obtain a solution of a salt (SO2F—NH—SO2F)·A containing bis(fluorosulfonyl)imide and the absorbent A, where in the SO2X2, X is independently fluorine or chlorine; (2) performing filtration, concentration and washing on the solution obtained in step (1) to obtain a purified salt (SO2F—NH—SO2F)·A of the bis(fluorosulfonyl)imide and the absorbent A; (3) adding a lithium source to the purified salt (SO2F—NH—SO2F)·A of the bis(fluorosulfonyl)imide and the absorbent A obtained in step (2) for reaction to obtain a solution containing lithium bis(fluorosulfonyl)imide; and (4) performing dehydration, concentration, crystallization with a non-aqueous poor solvent, and drying on the solution obtained in step (3) to obtain the lithium bis(fluorosulfonyl)imide i

Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, an organic light emitting device comprising the same, a method for manufacturing the same, and a composition for an organic material layer.

Abstract: A scintillator array includes: a structure having at least one scintillator segment and a first reflective layer, the at least one scintillator segment and the first reflective layer having a first surface and a second surface, the at least one scintillator segment having a sintered compact containing a rare earth oxysulfide phosphor, and the first reflective layer being configured to reflect light; and a second reflective layer provided above the first surface via an adhesive layer, the adhesive layer having a thickness of 2 ?m or more and 40 ?m or less, and the second reflective layer having a film configured to reflect light.

Abstract: A silver powder containing: silver particles; and an adherent that is attached to surfaces of the silver particles and contains a metal oxide that has a melting point lower than a melting point of silver.