Abstract: Provided are an apparatus for producing inorganic powder, and a method of producing inorganic powder by using such. The apparatus includes a vaporization part where a condensed-phase precursor is vaporized to obtain a gas-phase precursor, a partial precipitation part where the gas-phase precursor obtained in the vaporization part is partially precipitated to a condensed phase, and a reaction part where the gas-phase precursor remaining after being partially precipitated to a condensed phase in the partial precipitation part reacts with a reaction gas to obtain inorganic powder. An equilibrium vapor pressure of the gas-phase precursor in the partial precipitation part is lower than a vapor pressure of the gas-phase precursor obtained in the vaporization part, and an equilibrium vapor pressure of the precursor in the reaction part is equal to or higher than a vapor pressure of the gas-phase precursor partially precipitated to a condensed phase in the partial precipitation part.

Abstract: Provided are an apparatus for producing inorganic powder, and a method of producing inorganic powder by using such. The apparatus includes a vaporization part where a condensed-phase precursor is vaporized to obtain a gas-phase precursor, a partial precipitation part where the gas-phase precursor obtained in the vaporization part is partially precipitated to a condensed phase, and a reaction part where the gas-phase precursor remaining after being partially precipitated to a condensed phase in the partial precipitation part reacts with a reaction gas to obtain inorganic powder. An equilibrium vapor pressure of the gas-phase precursor in the partial precipitation part is lower than a vapor pressure of the gas-phase precursor obtained in the vaporization part, and an equilibrium vapor pressure of the precursor in the reaction part is equal to or higher than a vapor pressure of the gas-phase precursor partially precipitated to a condensed phase in the partial precipitation part.

Abstract: Provided are an apparatus for producing inorganic powder, and a method of producing inorganic powder by using such. The apparatus includes a vaporization part where a condensed-phase precursor is vaporized to obtain a gas-phase precursor, a partial precipitation part where the gas-phase precursor obtained in the vaporization part is partially precipitated to a condensed phase, and a reaction part where the gas-phase precursor remaining after being partially precipitated to a condensed phase in the partial precipitation part reacts with a reaction gas to obtain inorganic powder. An equilibrium vapor pressure of the gas-phase precursor in the partial precipitation part is lower than a vapor pressure of the gas-phase precursor obtained in the vaporization part, and an equilibrium vapor pressure of the precursor in the reaction part is equal to or higher than a vapor pressure of the gas-phase precursor partially precipitated to a condensed phase in the partial precipitation part.

Abstract: Provided are an apparatus for producing inorganic powder, and a method of producing inorganic powder by using such. The apparatus includes a vaporization part where a condensed-phase precursor is vaporized to obtain a gas-phase precursor, a partial precipitation part where the gas-phase precursor obtained in the vaporization part is partially precipitated to a condensed phase, and a reaction part where the gas-phase precursor remaining after being partially precipitated to a condensed phase in the partial precipitation part reacts with a reaction gas to obtain inorganic powder. An equilibrium vapor pressure of the gas-phase precursor in the partial precipitation part is lower than a vapor pressure of the gas-phase precursor obtained in the vaporization part, and an equilibrium vapor pressure of the precursor in the reaction part is equal to or higher than a vapor pressure of the gas-phase precursor partially precipitated to a condensed phase in the partial precipitation part.

Abstract: A semiconductor substrate measuring apparatus includes a light source unit generating irradiation light including light in a first wavelength band and light in a second wavelength band. An optical unit irradiates the irradiation light on a measurement object and condenses reflected light. A light splitting unit splits the reflected light, condensed in the optical unit, into a first optical path and a second optical path. A first detecting unit is disposed on the first optical path and detects first interference light in the first wavelength band in the reflected light. A second detecting unit is disposed on the second optical path and detects second interference light in the second wavelength band in the reflected light. A controlling unit calculates at least one of a surface shape or a thickness of the measurement object. The controlling unit calculates a temperature of the measurement object.

Abstract: A semiconductor substrate measuring apparatus includes a light source unit generating irradiation light including light in a first wavelength band and light in a second wavelength band. An optical unit irradiates the irradiation light on a measurement object and condenses reflected light. A light splitting unit splits the reflected light, condensed in the optical unit, into a first optical path and a second optical path. A first detecting unit is disposed on the first optical path and detects first interference light in the first wavelength band in the reflected light. A second detecting unit is disposed on the second optical path and detects second interference light in the second wavelength band in the reflected light. A controlling unit calculates at least one of a surface shape or a thickness of the measurement object. The controlling unit calculates a temperature of the measurement object.

Abstract: Disclosed is a hybrid porous carbon fiber and a method for fabrication thereof. Such fabricated porous carbon fibers contain a great amount of mesopores as a porous structure readily penetrable by electrolyte. Accordingly, the hybrid porous carbon fibers of the present disclosure are suitable for manufacturing electrodes with high electric capacity.

Abstract: A method for manufacturing a solar cell includes disposing a first doping layer on a substrate, disposing a diffusion preventing layer on the first doping layer, patterning the first doping layer and the diffusion preventing layer to expose a portion of the substrate, forming a second doping layer which is disposed on the exposed portion of the substrate on the diffusion preventing layer, diffusing an impurity from the first doping layer to form a first doping region in a surface of the substrate and diffusing an impurity from the second doping layer to form a second doping region in the surface of the substrate surface, wherein the exposed portion of the substrate formed by patterning the first doping layer and the diffusion preventing layer and a portion of the remaining first doping layer and the diffusion preventing layer which are not patterned are alternately arranged with a lattice shape, and the first doping region and the second doping region are alternately arranged with the lattice shape.

Abstract: The invention relates to methods for fabricating ceramic nanocomposite powders, comprising a ceramic matrix and carbon nanotubes homogeneously dispersed in the ceramic matrix. The ceramic nanocomposite powders of the invention can prevent property deterioration due to agglomeration of carbon nanotubes.

Abstract: Disclosed is a method for fabrication of porous carbon fibers. More particularly, the method for fabrication of porous carbon fibers comprises the steps of: processing starch to prepare a gelled starch solution; adding organic acid to the gelled starch solution to prepare a starch solution; dissolving carbon nanotubes in a solvent and adding fiber formable polymer thereto to prepare a carbon nanotube/fiber formable polymer solution; mixing the starch solution with the carbon nanotube/fiber formable polymer solution obtained from the above steps, in order to prepare a carbon nanotube/starch/fiber formable polymer solution; electro-spinning or wet-state spinning the prepared carbon nanotube/starch/fiber formable polymer solution to produce starch composite fibers; oxidation heating the starch composite fibers, then, executing carbonization and vacuum heat treatment of the heated fibers, so as to fabricate the porous carbon fibers.

Abstract: Disclosed is a method for fabricating carbon nanotube-metal-polymer nanocomposites, in particular, to a method for fabricating a carbon nanotube-metal-polymer nanocomposite wherein the carbon nanotubes decorated with metal portion in a necklace form are homogeneously dispersed in a polymer base. The method for fabricating a carbon nanotube-metal-polymer nanocomposite comprises: preparing carbon nanotube-metal nanocomposite powder by introducing a polyol reducing agent as well as metal precursor in a carbon nanotube colloidal solution and heating the same; dispersing the carbon nanotube-metal nanocomposite powder in a polymer base; and curing the polymer base to form the carbon nanotube-metal-polymer nanocomposite. According to the present invention, as the carbon nanotubes decorated with metal particles in a necklace form are homogeneously dispersed in the polymer base, microwave absorbing and shielding properties of the final product are improved.

Abstract: The invention relates to methods for fabricating ceramic nanocomposite powders, comprising a ceramic matrix and carbon nanotubes homogeneously dispersed in the ceramic matrix. The ceramic nanocomposite powders of the invention can prevent property deterioration due to agglomeration of carbon nanotubes.