Abstract: Provided is an emitter. The emitter according to an aspect of the present disclosure is formed in a form of a sheet including carbon nanotube, and the emitter includes at least one of a part curved to form a ridge in a direction of electron emission and a part bent to form a ridge in the direction of electron emission.

Abstract: A power semiconductor device includes a high voltage unit configured to output a high voltage, a low voltage unit configured to output a low voltage, a capacitor electrically connected to the high voltage unit and supplying power to the high voltage unit while the high voltage is output, a switching unit electrically connected to the high voltage unit and the capacitor and configured to connect the capacitor to a driving power source to charge the capacitor while the low voltage is output and to prevent the high voltage unit from being electrically connected to the driving power source while the high voltage is output, and a resistance unit electrically connected between the switching unit and the high voltage unit and configured to drop the high voltage to a voltage lower than a breakdown voltage of the switching unit while the high voltage is output.

Abstract: The present disclosure provides an organic electroluminescent device including: an anode; a cathode; and one or more organic material layers interposed between the anode and cathode and selected from the group consisting of a hole injection layer, a hole transporting layer, a light emitting layer, an electron transporting layer, and an electron injection layer, and further including a lifetime enhancement layer (LEL) between the light emitting layer and the electron transporting layer.

Abstract: Provided is a carbon sheet for pellicle that includes a bundle composed of a plurality of carbon nanotubes, and a ratio (P/D) of porosity P to linear density D (in grams per kilometer [g/km]) is within a range of 0.2 to 10. Also provided is a pellicle that includes the carbon sheet and a pellicle frame configured to support it. The carbon sheet is free-standing and exhibits excellent transmittance with respect to ultraviolet rays, including extreme ultraviolet radiation. Further provided is a method for manufacturing the carbon sheet, which includes forming the bundle of carbon nanotubes by reacting a source material under controlled conditions. This method enables the formation of a carbon sheet that maintains mechanical stability while achieving high ultraviolet transmittance, suitable for use in photolithography processes.

Abstract: The present disclosure provides an organic electroluminescent device including: an anode; a cathode; and one or more organic material layers interposed between the anode and cathode and selected from the group consisting of a hole injection layer, a hole transporting layer, a light emitting layer, an electron transporting layer, and an electron injection layer, and further including a lifetime enhancement layer (LEL) between the light emitting layer and the electron transporting layer.

Abstract: An emitter, a field emission assembly, and an electromagnetic wave generator are provided, and the emitter is an emitter for emitting electrons in an electromagnetic wave generator and is in the form of a sheet in which a plurality of yarns including carbon nanotube (CNT) fibers are weaved.

Abstract: A field emission assembly and an electromagnetic wave generator are provided, the field emission assembly includes a linear emitter which includes carbon nanotube (CNT) fibers and emits electrons and a holder configured to fix the emitter, both ends of the emitter are fixed to the holder, and the emitter includes at least one of a curved portion so as to form a peak in an electron emission direction and a bent portion so as to form a peak in the electron emission direction.

Abstract: A novel compound represented by Chemical Formula 6 below and an organic electroluminescent device including the same are disclosed.

Abstract: Provided is a method of manufacturing a carbon nano material based on a machine learning model. The method includes obtaining first control information on a process of synthesizing carbon nano material. The method includes obtaining analysis information on the synthesized carbon nano material in real time based on the first control information. The method includes managing the first control information and the analysis information in a database. The method includes training a machine learning model using information managed in the database. The method includes synthesizing the carbon nano material by applying second control information in which the first control information for the process is adjusted based on the trained machine learning model.

Abstract: A method for regenerating a cryopump that includes a cooler including a first stage part and a second stage part, and configured to cool the first stage part and the second stage part with a high pressure refrigerant; a cryopanel including a first panel which is cooled by the first stage part and a second panel which is cooled by the second stage part; a cryopump vessel configured to surround the cryopanel and including a radiation shield that surrounds the first stage part; a first heater provided in the first panel; and a second heater provided in the second panel, the method comprising a temperature increasing process of increasing temperatures of the radiation shield and the first panel by turning on the first heater, a roughing process of controlling a roughing valve configured to regulate vacuum within the cryopump vessel in a state where the cryopump vessel is kept at a pressure at which solid state ice can sublimate into gas state vapor, a purging process of supplying a purge gas into the cryopump ves

Abstract: The present invention relates to a novel enzyme capable of producing multi-hydroxy derivatives from polyunsaturated fatty acids and a method for producing multi-hydroxy derivatives of polyunsaturated fatty acids using the same.

Abstract: Provided is an emitter. The emitter according to an aspect of the present disclosure is formed in a form of a sheet including carbon nanotube, and the emitter includes at least one of a part curved to form a ridge in a direction of electron emission and a part bent to form a ridge in the direction of electron emission.

Abstract: The present invention relates to a novel enzyme capable of producing multi-hydroxy derivatives from polyunsaturated fatty acids and a method for producing multi-hydroxy derivatives of polyunsaturated fatty acids using the same.

Abstract: A method for regenerating a cryopump that includes a cooler equipped with a first stage part and a second stage part which is cooled to a lower temperature than the first stage part; a cryopanel equipped with a first panel including a heat-shield body and a baffle which is cooled by the first stage part and a second panel which is cooled by the second stage part; a cryopump vessel configured to surround the cryopanel; a first heater provided in the first stage part; and a second heater provided in the second stage part, includes a temperature increasing process of increasing temperatures of the first stage part and the second stage part by supplying a purge gas into the cryopump vessel during an operation of the cooler, a roughing process of evacuating gases captured in the cryopump vessel until the cryopump vessel has a predetermined pressure and a cool-down process of lowering the temperatures of the first stage part and the second stage part to their operating temperatures, respectively.

Abstract: A novel compound of the Chemical Formula 1 and an organic electroluminescent device including the compound are disclosed.

Abstract: The present invention relates to a novel enzyme capable of producing multi-hydroxy derivatives from polyunsaturated fatty acids and a method for producing multi-hydroxy derivatives of polyunsaturated fatty acids using the same.

Abstract: A power semiconductor device includes a high voltage unit configured to output a high voltage, a low voltage unit configured to output a low voltage, a capacitor electrically connected to the high voltage unit and supplying power to the high voltage unit while the high voltage is output, a switching unit electrically connected to the high voltage unit and the capacitor and configured to connect the capacitor to a driving power source to charge the capacitor while the low voltage is output and to prevent the high voltage unit from being electrically connected to the driving power source while the high voltage is output, and a resistance unit electrically connected between the switching unit and the high voltage unit and configured to drop the high voltage to a voltage lower than a breakdown voltage of the switching unit while the high voltage is output.

Abstract: An emitter, a field emission assembly, and an electromagnetic wave generator are provided, and the emitter is an emitter for emitting electrons in an electromagnetic wave generator and is in the form of a sheet in which a plurality of yarns including carbon nanotube (CNT) fibers are weaved.

Abstract: A field emission assembly and an electromagnetic wave generator are provided, the field emission assembly includes a linear emitter which includes carbon nanotube (CNT) fibers and emits electrons and a holder configured to fix the emitter, both ends of the emitter are fixed to the holder, and the emitter includes at least one of a curved portion so as to form a peak in an electron emission direction and a bent portion so as to form a peak in the electron emission direction.

Abstract: A semiconductor device, includes an insulating film formed on a substrate; a conductive layer, comprising first and second doped poly-silicon regions and a undoped poly-Si region, formed on the insulating film; a highly doped first conductivity type drain region and a highly doped a first conductivity type source region formed in the first and second doped poly-silicon regions, respectively; and a highly doped second conductivity type gate region formed in the undoped poly-Si region between the highly doped first conductivity type drain region and the highly doped first conductivity type source region. The undoped poly-Si region is disposed closer to the highly doped first conductivity type source region than the highly doped first conductivity type drain region.