Abstract:
PURPOSE: A ZnSnO3/ZnO(zinc stannate/zinc oxide) nanowire in a core-shell structure is provided to have excellent piezoelectric characteristic by containing ZnSnO3 in a perovskite crystalline structure, and to apply a nano power-generating device to an environment-friendly field or within the human body. CONSTITUTION: A ZnSnO3/ZnO nanowire(500) includes a core-shell structure formed with a core(510) and a shell(520). The core contains ZnSnO3 and the shell contains ZnO. The ZnSnO3 has a perovskite crystalline structure, and the ZnO has a hexagonal crystalline structure. The ZnSnO3/ZnO nanowire is formed by a thermal chemical vapor deposition(thermal CVD) method. A producing method of the ZnSnO3/ZnO nanowire comprises the following steps: mixing ZnO powder, SnO powder, and carbon powder in a determined ratio; separately inserting the mixed powder and a substrate into a furnace; and heating the mixed powder for growing the ZnSnO3/ZnO nanowire on the substrate.
Abstract:
PURPOSE: A photoelectric device and a manufacturing method thereof are provided to increase a photo current generation amount and efficiency by forming a plurality of electrodes with a horizontal junction structure to be arranged in a horizontal direction. CONSTITUTION: A photoactive layer(20) is formed on a substrate(10) and includes graphene. An electrode structure is formed on the photoactive layer. The electrode structure includes a first electrode(30) and a second electrode(40) which are separated. The first electrode includes a first material doping the photoactive layer with holes. The second electrode includes a second material doping the photoactive layer with electrons.
Abstract:
PURPOSE: A composition for forming inorganic pattern is provided to form inorganic pattern of nano or micro scale with low cost. CONSTITUTION: A composition for forming inorganic pattern comprises inorganic precursor, stabilizing agent, and solvent. The stabilizing agent is one or more selected from β-diketone and β-keto ester. A method for producing reaction mixture solution (20) of inorganic precursor, stabilizing agent of inorganic precursor and solvent comprises: a step of patterning mixture solution by electrohydrodynamic lithography and a step of evaporating solvent to obtain inorganic pattern.
Abstract:
무기물층의형성방법에관해개시되어있다. 개시된무기물층의형성방법은무기물의소오스층을레이저로어닐링하여무기물층으로변화시키는단계를포함할수 있다. 상기소오스층은반고체(semisolid) 상태일수 있다. 상기어닐링전, 예컨대, 전기유체역학적리소그래피(electrohydrodynamic lithography)(EHL) 법으로상기소오스층을패터닝할수 있다.
Abstract:
PURPOSE: A manufacturing method of a composite of a polymer and a graphene is provided to obtain the composite with a 3-dimensional structure, having both high electric conductivity of the graphene and low thermal conductivity of the polymer. CONSTITUTION: A composite of a composite of a polymer and a graphene comprises at least one 3-dimensioanl polymer structure; and a graphene layer formed on the polymer structure. A manufacturing method of the composite comprises a step of preparing a substrate for growth(110), having an uneven surface; a step of synthesizing a graphene layer on the surface of the substrate; a step of forming a polymer structure on the graphene layer; and a step of removing the substrate.
Abstract:
PURPOSE: A nano generator and a method for manufacturing the same are provided to change vibration to electric energy by using a nanostructure having excellent piezoelectric characteristic. CONSTITUTION: A nano electric generator includes a substrate, a first electrode(130), a second electrode(120) and a nanostructure(140). The first electrode is separated from the substrate. The second electrode is formed on the substrate. The nanostructure is formed between the substrate and the first electrode.
Abstract:
The present invention provides a method for manufacturing doped mesoporous titanium dioxide (TiO_2) microsphere particles that can mass-produce mesoporous titanium dioxide (TiO_2) microsphere particles effectively doped with a metallic or non-metallic material. According to the manufacturing method, Ti precursor-based mesoporous microsphere particles, which have the size of the pores expanded, are impregnated with a solution containing a doping material precursor, so that the doping material precursor can be easily filled into the expanded pores of the Ti precursor-based mesoporous microsphere particles even if the molecular size of the doping material precursor such as zinc acetate is relatively large.
Abstract:
PURPOSE: A manufacturing method of a sodium vanadate nanowire is provided to simply manufacture a sodium vanadate nanowire in high quality single crystal by controlling the spreading thickness of a precursor solution, heat treatment temperature, and/or time. CONSTITUTION: A manufacturing method of a sodium vanadate nanowire comprises: a step of spreading a solution(20) containing sodium and vanadium on a substrate(30); a step of forming a sodium vanadate crystal core by heat-treating the substrate; and a step of heat-treating the substrate to grow the sodium vanadate nanowire from the sodium vanadate core. The solution contains 1-6 mols of vanadium per 1 mol of sodium. The substrate is an electric conductive substrate or electric nonconductive substrate. The spreading thickness of the solution is 10-1,000nm. The first heat treatment is conducted at 70-130 deg. C and the second heat treatment is conducted at 300-600 deg. C.
Abstract:
PURPOSE: A method for forming inorganic layer is provided to perform additional process(annealing) at low temperature in a short time and to save preparation cost. CONSTITUTION: A method for forming inorganic material layer comprises: a step of forming source layer of inorganic material on a substrate; a step of patterning the source layer; and a step of annealing the source layer by laser to change into inorganic layer. The source layer contains inorganic material precursor, solubilizing agent, and solvent. The substrate is a glass substrate.