Abstract: A composition of matter including a donor including a dithiophene unit combined with a non-fullerene acceptor. Further disclosed is a device comprising an active region including the composition of matter. Example devices include a solar cell or a photodetector.

Abstract: A light emitting diode includes: a first semiconductor layer; an active layer located on one surface of the first semiconductor layer; a second semiconductor layer located on one surface of the active layer; an electrode layer located on one surface of the second semiconductor layer; and a bonding electrode layer located on the other surface of the first semiconductor layer.

Abstract: A method for manufacturing a display device comprises the steps of: spraying, on a target substrate having a first electrode and a second electrode formed thereon, an element ink comprising a first element solvent and light-emitting elements dispersed in the first element solvent; forming a second element solvent in which at least some bonds of the first element solvent are decomposed by irradiating light to the first element solvent and mounting the light-emitting elements on the first electrode and the second electrode; and removing the second element solvent.

Abstract: Disclosed are a tight-contact jig for secondary battery tab laser welding including an upper tight-contact jig including a ring-shaped spray portion capable of performing surface spray in order to inhibit deterioration in weld quality due to reaction with hydrogen or oxygen in air at the time of laser welding for forming an electrode terminal and to inhibit the occurrence of short circuit due to deposition of spatter generated at the time of welding and a welding method.

Abstract: A memory system includes a non-volatile memory device and a controller. The non-volatile memory device includes plural memory groups storing plural chunks. The controller is capable of generating the plural chunks including data chunks and parity chunks based on original data, assign different priorities to the data chunks and the parity chunks, and recovering at least one chunk among the plural chunks based on the different priorities when an operation regarding the at least one chunk fails.

Abstract: A memory system includes a memory device including a first memory block and a second memory block, wherein the first memory block stores a first data chunk having a first size and the second memory block stores a second data chunk having a second size, and the first size is less than the second size; and a controller operatively coupled to the memory device, wherein the controller is configured to read the second data chunk from the second memory block, correct at least one error of the second data chunk when the at least one error is detected, and copy a portion of the second data chunk to the first memory block, wherein the portion of the second data chunk is error-corrected and has the first size.

Abstract: A method of manufacturing a light emitting element includes: forming a plurality of light emitting patterns on a stack substrate; forming a polysilazane layer on the plurality of light emitting patterns; forming a first insulating film by curing the polysilazane layer; and forming a second insulating film on the first insulating film. The forming of the first insulating film includes photocuring the polysilazane layer by irradiating ultraviolet rays onto the polysilazane layer. The forming of the plurality of light emitting patterns includes: forming a light emitting stack structure on the stack substrate; and etching the light emitting stack structure.

Abstract: Discussed is a method of manufacturing an electrode, the method including applying an electrode active material to a portion of an electrode collector, the electrode collector having a non-coating portion that is not coated with the electrode active material, and an active material coating portion that is coated with the electrode active material; setting an ablation line on at least one end of the active material coating portion that is contacting the non-coating portion; performing ablation on a boundary line between the non-coating portion and the active material coating portion and an area surrounded by the ablation line while maintaining a state in which the electrode active material is applied; setting a notching line on an ablation area of the electrode collector on which the ablation is performed; and performing notching by using the notching line as a boundary.

Abstract: This disclosure relates to a composition for the prevention or the treatment of inflammatory skin diseases or severe pruritus comprising an aqueous solubilized ursodeoxycholic acid (UDCA). According to this disclosure, inflammatory skin diseases and severe pruritus such as atopic dermatosis, acne, psoriasis, hives, inflammatory skin disease, seborrheic dermatitis and contact dermatitis can be effectively alleviated or treated. Therefore, the composition comprising aqueous solubilized ursodeoxycholic acid of this disclosure can be best used as a pharmaceutical, food or cosmetic composition, and can be used particularly as an external preparation to exhibit its effect.

Abstract: A light-emitting element ink and a method of manufacturing a display device using the light-emitting element ink are provided. The light-emitting element ink comprises a solvent, a dispersant mixed with the solvent, and a plurality of light-emitting elements dispersed in the solvent, each of the light-emitting elements including a plurality of semiconductor layers and an insulating film surrounding parts of outer surfaces of the semiconductor layers, wherein the dispersant includes an aqueous dispersant or an organic dispersant, if the dispersant is the aqueous dispersant, the solvent has a hydrogen bonding parameter, of Hansen's solubility parameters, of less than 7, and if the dispersant is the organic dispersant, the solvent has a hydrogen bonding parameter, of Hansen's solubility parameters, of 7 or greater.

Abstract: A wheel resonator for reducing a resonance phenomenon inside a tire of a vehicle may include a plurality of wheel resonators mounted to a tire wheel. First and second wheel resonators of the plurality of wheel resonators are fixed with each other by a fastening part including a protrusion disposed on an end of the first wheel resonator penetrating through a hole disposed in an end of the second wheel resonator. An end portion of the protrusion has a size greater than a size of the hole. As such, quality of a wheel through more reliable noise reduction by making a wheel resonator in a manner of forming a fitting type fastening part in the wheel resonator itself and fixing the wheel resonator by ultrasonic welding can be improved.

Abstract: A light emitting element includes a first surface corresponding to an end of the light emitting element, a second surface corresponding to another end of the light emitting element, a first semiconductor layer adjacent to the first surface, the first semiconductor layer including a first type of semiconductor, a second semiconductor layer adjacent to the second surface, the second semiconductor layer including a second type of semiconductor different from the first type of semiconductor, and an active layer disposed between the first semiconductor layer and the second semiconductor layer. An area of the first surface is larger than an area of the second surface, and a distance between the first surface and the second surface is shorter than a length defined by the first surface.

Abstract: An ink for manufacturing a display device includes a solvent; and light emitting elements disposed in the solvent, wherein the light emitting elements include a first semiconductor layer including a first type of semiconductor and a second semiconductor layer including a second type of semiconductor, and an electrical conductivity of the ink is about 1.5 ?S/m or less. Also provided are a method of manufacturing a display device using the ink and a display device manufactured by the method.

Abstract: An ink includes a solvent, and light-emitting elements dispersed in the solvent, each of the light-emitting elements comprising semiconductor layers and an insulating film partially surrounding outer surfaces of the semiconductor layers, wherein the solvent has Hansen solubility parameters of a polarity parameter between about 4 and about 9 and a hydrogen bonding parameter between about 6 and about 11.

Abstract: Provided is a cutting biopsy instrument facilitating loading by minimizing a change in a grip on a biopsy instrument and enhancing tissue sampling accuracy and safety and simplifying collection of sampled tissue by proposing a new shift relation between an stylet and an cannula at the shooting of the needles.

Abstract: A light emitting element ink comprises a light emitting element solvent, a light emitting element dispersed in the light emitting element solvent, the light emitting element including a plurality of semiconductor layers, and an insulating film surrounding outer surfaces of the plurality of semiconductor layers, and a thickener dispersed in the light emitting element solvent, wherein the thickener includes a compound represented by Chemical Structural Formula 1 as a polyol-based compound capable of forming a hydrogen bond with the light emitting element solvent or another thickener, and the thickener has a boiling point in a range of about 200° C. to about 450° C.