Abstract:
PURPOSE: A powder heat treatment device is provided to manufacture powder of uniform particle size by performing the uniform heat treatment of a reaction vessel filled with powder. CONSTITUTION: A thermal process is performed in a reaction pipe. An outer pipe is arranged at outside of the reaction pipe to surround the reaction pipe. A rotation device(330) rotates the reaction pipe and outer pipe. The reaction pipe comprises a reaction chamber(314). The cross section of the reaction chamber is polygonal shape. A fixed amount of ambient gas is provided to the space between the outer pipe and the reaction pipe in order to separate the reaction pipe from external environment.
Abstract:
PURPOSE: A tandem solar battery and a manufacturing method thereof are provided to form a reflection preventing layer inside or outside a transparent substrate, thereby increasing photoelectric transformation efficiency of a solar battery. CONSTITUTION: A transparent electrode(520) is formed on a substrate. A super straight chalcogenide solar battery cell(530) is formed on the transparent electrode. A connection electrode(538) is formed on the super straight chalcogenide solar battery cell. An inverted organic solar battery cell is formed on the connection electrode. A metal electrode is formed on the inverted organic solar battery cell.
Abstract:
PURPOSE: An inverted organic solar cell including chalocogenide compounds and a manufacturing method thereof are provided to supply a flexible solar cell regardless of a shape by using not only a vacuum method but also a printing method. CONSTITUTION: A transparent substrate(220) is formed on a substrate(210). A chalocogenide compound thin film is formed on a first electrode. A photoactive layer(240) is formed on the chalocogenide compound thin film. A buffer layer(230) is formed on the photoactive layer. A second electrode(250) is formed on the buffer layer.
Abstract:
PURPOSE: A method for manufacturing a dye-sensitized solar cell is provided to form metal hydride on a semiconductor compound by an immersion method, thereby increasing efficiency of a dye-sensitized solar cell. CONSTITUTION: A film of a semiconductor compound(210) is formed on a transparent electrode. A metal hydride(212) is melted in a solution to produce an immersion solution. A substrate(200) in which a film of the semiconductor compound is formed is immersed in the immersion solution. The metal hydride is coated on a surface of the semiconductor compound. The coated metal hydride is immersed in a dye solution.
Abstract:
고분자 화합물 및 그를 포함하는 태양전지가 개시된다. 고분자 화합물은 고분자 주쇄에 퍼릴렌테트라카르복시 디이미드계 화합물을 포함한다. 이러한 고분자 화합물은 태양전지 광활성층의 전자공여체 및 전자수용체 중에서 적어도 어느 하나로 이용될 수 있기 때문에 태양전지 광전변환효율이 향상될 수 있다.
Abstract:
A method for manufacturing a transparent counter electrode of a dye-sensitive solar cell is provided to adjust a concentration of platinum nano particles by controlling a process time and a current amount of an electro-reduction process. An electrolyte solution containing platinum ions is provided(110). The electrolyte solution is placed in an electro-chemical reactor(140) with a transparent conductive substrate(120) and a counter electrode(130). Negative and positive voltages are applied on the transparent conductive substrate and the counter electrode, respectively, by using a DC voltage supply(150), such that platinum ions are decreased in the conductive substrate. Voltage/current density and application timing are adjusted, such that the platinum particles are formed in an island shape and the counter electrode has a transparent property.
Abstract:
A method for preparing a ZnS-ZnO photocatalyst which can substantially improve the visible light absorbance of a reactant, can efficiently remove contaminants under visible lights, and can be applied to hydrogen production, air purification, etc. under visible lights, and the ZnS-ZnO photocatalyst prepared by the method are provided. A method for preparing a ZnS-ZnO photocatalyst responding to visible lights comprises the step of filtering, drying and firing the coprecipitated ZnS-ZnO after coprecipitating ZnS and ZnO by adding a zinc precursor solution into a mixed solution of a sulfur-containing metal salt solution and a hydroxyl group-containing hydroxide salt solution. A ZnS-ZnO photocatalyst responding to visible lights is in the form of a powder having a crystalline structure in which structures of cubic zincblende and hexagonal wurtzite are present at the same time, having a particle size of 15 to 25 nm, and containing Zn, S and O as principal elements.
Abstract:
A method for preparing an oxide semiconductor electrode of an electrochemical device is provided to effectively decompose liquid contaminant or pollutants existing in a water system. A glass substrate coated with an oxide conductor is coated with a mixture of titanium precursor, polymer compound and a solvent through a spin coating method to form a thin film. An annealing process is performed on the formed thin film. The oxide conductor contains a metal selected from the group consisting of indium, tin, zinc, aluminum and fluorine. The titanium precursor is an organic compound comprising Ti of titanium isopropoxide or titanium tetraethoxide.