Abstract:
PURPOSE: A pours silicon structure is provided to have a hollow structure and high porosity, thereby releasing stress generated during charging and discharging and having high cycle performance and capacity. CONSTITUTION: A porous silicon structure(100) comprises a substrate(110); and an array(120) of silicon microspheres arranged on the substrate. The silicon microspheres have a hollow structure. A manufacturing method of the porous silicon structure comprises a step of forming a spherical polymer film by self-aligning the polymer microspheres; a step of forming a porous silicon membrane by coating the spherical polymer film with silicon; and a step of forming hollow silicon spheres(!25) by removing the polymer microspheres.
Abstract:
PURPOSE: A method of forming a multi-diameter silicon wire structure is provided to form a silicon wire having a wide surface area and high efficiency through metal-assisted catalytic etching. CONSTITUTION: An etching mask is patterned on the surface of a silicon substrate. The surface of silicon substrate, on which the etching mask is patterned, is chemically etched. A silicon wire whose longitudinal diameter changes is formed by successively changing one of any processing condition selected from a group consisting of the composition of an etching solution, etching time, and the temperature of the etching solution. A metallic catalyst is deposited on the surface of the silicon substrate.
Abstract:
하이브리드 태양전지 및 그 제조 방법이 개시된다. 본 개시의 일 실시 예로서, 서로 대향하는 두 전극 사이에 N형 실리콘 계 나노 구조체 및 P형 유기반도체가 혼합된 층 또는 P형 실리콘 계 나노 구조체 및 N형 유기반도체가 혼합된 층을 적어도 한 층 이상 포함하고 있는 하이브리드 태양전지가 제공된다.
Abstract:
PURPOSE: A method for manufacturing a silicon wire structure is provided to reduce a width of a silicon wire by forming a plurality of etch pits in a region of the same area. CONSTITUTION: A mask layer is patterned on a silicon wafer(S1). A part of the silicon wafer, which is not covered with the mask layer, is chemically etched with a metallic catalyst(S2). Residual metal is removed from the silicon wafer after chemical etching with the metallic catalyst(S3). The silicon wafer including an etch pit is formed by eliminating the mask layer(S4). A silicon wire array is formed by electrochemically etching silicon wafer including the etch pit(S5).
Abstract:
PURPOSE: A hybrid solar cell and a manufacturing method thereof are provided to improve low charge mobility and electrical conductivity of an organic semiconductor material by using an inorganic material. CONSTITUTION: A hybrid solar battery comprises a substrate(100), a transparent electrode(110), a buffer layer(120), a mixture layer(130A) including a silicon nano structure and an organic semiconductor, and an upper electrode(140). The transparent electrode is arranged on the substrate. The buffer layer can be formed on the transparent electrode(110). A mixed layer of an N type silicon-based nano structure and a P type organic semiconductor or a mixed layer of a P type silicon-based nano structure and an N type organic semiconductor is formed between the two facing electrodes.