Abstract:
PURPOSE: An inversion photonic crystal structure, a manufacturing method, a solar cell thereof, and a manufacturing method thereof are provided to improve a specific surface area by additionally forming a nano-sized porous part. CONSTITUTION: A light absorption layer(351), which contains TiO2, is formed on a transparent conductive board(300). A plurality of photonic crystal particles(311) are formed to be arranged on the light absorption layer at a uniform interval. A solution is filled between the photonic crystal particles by coating a solution(320) which mixes a TiO2 precursor and a surfactant. An optical scattering layer is formed by eliminating the photonic crystal particles and the surfactant.
Abstract:
PURPOSE: Mesoporous carbon, a manufacturing method thereof, and a fuel cell using the same are provided to control the size of the mesoporus carbon minutely and variously without adjusting size of a silica colloid nano particle separately. CONSTITUTION: A manufacturing method of mesoporus carbon containing a hetero atom includes the following steps of: manufacturing a carbon precursor mixture(11) by mixing a precursor and a silica particle including a carbon precursor and a hetero atom; manufacturing a silica-carbon mixture by carbonizing and drying the carbon precursor mixture; and removing the silica from the silica-carbon mixture.
Abstract:
PURPOSE: A photo electrode for a dye sensitized solar cell including silica particles coated with titanium dioxide and a manufacturing method thereof are provided to manufacture a light scattering electrode which satisfies a shape control and a light property by forming a titanium dioxide layer after the silica particles are made. CONSTITUTION: The surfaces of silica particles are coated with titanium dioxide. A titanium dioxide is crystallized by thermally processing silica nano particles coated with titanium dioxide. The silica nano particle is made with a sol-gel method by mixing silicon-contained alkoxide compound and organic solvent. The average thickness of the titanium dioxide is 5 nm to 50 nm. The average diameter of the silica particle is 50 um to 1 um.
Abstract:
본 발명은 기공의 직경이 11 내지 35nm, 비표면적이 700m 2 /g 이상이고, 헤테로 원자를 포함하는 헤테로 원자 함유 메조포러스 탄소를 제공한다. 또한 본 발명은 탄소 전구체, 헤테로원자를 포함하는 전구체 및 실리카 입자를 혼합하여 탄소 전구체 혼합물을 제조하는 단계; 상기 탄소 전구체 혼합물을 건조하고 탄화시켜 실리카-탄소 복합체를 제조하는 단계; 및 상기 실리카-탄소 복합체로부터 실리카를 제거하는 단계를 포함하는 것을 특징으로 하는 헤테로원자 함유 메조포러스 탄소의 제조방법을 제공한다.
Abstract:
PURPOSE: A negative electrode active material is provided to increase the capacity and lifetime performance of a lithium battery by comprising porous manganese oxide. CONSTITUTION: A negative electrode active material comprises an ordered porous manganese oxide. The manganese oxide is represented by chemical formula 1: Mn_xO_y. In chemical formula 1, 1ΔxΔ3, 1ΔyΔ4, 2Δx+yΔ7, and 0