Abstract:
본 발명은 무기 박막 태양전지에 관한 것으로 본 발명의 실시 예를 따르는 무기 박막 태양전지는, 기판; 상기 기판상에 배치된 후면전극; 상기 후면전극 상의 적어도 일부에 접하는 패턴을 갖도록 배치된 그래핀 산화물층; 상기 그래핀 산화물 층상에 배치된 광활성층; 및 상기 광활성 상에 배치된 상부전극;을 포함한다.
Abstract:
SILAR법을 이용하여 CZTS 기반 광흡수 박막을 제조하는 방법이 개시된다. 이는 (a) 기판을 구리염, 아연염, 및 주석염을 포함하는 양이온 용액에 침지시키는 단계와, (b) 단계 (a)를 통과한 기판을 1차 세정하는 단계와, (c) 단계 (b)를 통과한 기판을 황염을 포함하는 음이온 용액에 침지시키는 단계와, (d) 단계 (d)를 통과한 기판을 2차 세정하는 단계를 포함한다. 이러한 싸이클을 소정 횟수 반복한 후, 건조와 열처리를 수행하여 CZTS 박막을 제조한다.
Abstract:
A gas sensor and a method for manufacturing the gas sensor are provided. The gas sensor according to the present invention is able to rapidly detect detection target gas stably in terms of chemistry by employing a p-type thin film compound semiconductor layer, to cause the chemical reaction of the gas molecules on a p-n bonding interface by using accurate characteristics of the p-type thin film compound semiconductor layer and the porosity of a porous compound semiconductor layer, and to reduce the reaction and hour time. Also, the method for manufacturing the gas sensor is able to sputter and deposit a precursor thin film for a p-type compound semiconductor on a substrate, to form a p-type thin film compound semiconductor layer through a step for heat-treating the precursor thin film, and to manufacture a gas sensor that easily and simply gets excellent characteristics by forming an n-type porous compound semiconductor layer on the p-type thin film compound semiconductor layer through a step for growing an n-type metal oxide nanorod using a chemical bath deposition (CBD).
Abstract:
PURPOSE: A manufacturing method of zinc oxide thin film using group III salt and oxidation zinc thin film manufactured by the same are provided to manufacture oxidized zinc thin film having a plurality of nano-rods with high aspect ratio. CONSTITUTION: A manufacturing method of zinc oxide thin film using group III salt comprises the following steps: providing a solution for zinc oxide hydrothermal synthesis including the group III salt; placing a substrate(10) in the solution for zinc oxide hydrothermal synthesis; and growing the oxidation zinc thin film(30) by heating the solution for zinc oxide hydrothermal synthesis. The oxidized zinc thin film includes a plurality of nano-rods grown up in the upper direction of the substrate. The nano-rods have the aspect ratio of 5-20. The group III salt which is included in the solution for zinc oxide hydrothermal synthesis includes one or more of Al, Ga and In.
Abstract:
본 발명은 태양전지용 광 흡수층으로 활용될 수 있는 CZTS 박막의 합성 방법에 관한 것으로, 보다 구체적으로는 단일공정의 전기증착법을 통해 CZTS 전구체를 준비하는 단계; 및 상기 CZTS 전구체를 열처리하여 CZTS 박막을 형성하는 단계;를 포함하며, 상기 CZTS 전구체를 준비하는 단계:는 기판을 준비하는 제1단계; 일정 농도의 CuSO 4, ZnSO 4 , SnSO 4 및 Na 2 S 2 O 3 로 이루어진 혼합 전해물이 구비된 전해조를 준비하는 제2단계; 및 상기 기판을 상기 전해조에 담근 후, 1회의 전기증착법을 통해 CZTS 전구체를 형성하는 제3단계;를 포함하는 것을 특징으로 한다.
Abstract:
A method for manufacturing CZTS nanoparticles and CZTS nanoparticles manufactured by the same are provided. The method for manufacturing CZTS nanoparticles includes a step of preparing a precursor solution by mixing water-soluble salts containing Cu, Zn, Sn and S and water, and a step of synthesizing CZTS nanoparticles through the reaction of the precursor solution at a certain temperature. In the method, the CZTS nanoparticles may be manufactured without using a poisonous material and the method is eco-friendly. Since the CZTS nanoparticles may be manufactured by a hydrothermal synthesis using water as a solvent, the CZTS nanoparticles having high quality may be manufactured at low cost. Further, since the CZTS nanoparticles may be used as a replacing material of a common CIGS thin film solar cell, a solar cell having high efficiency may be realized at low cost.
Abstract:
PURPOSE: A method for manufacturing a thin CZTS film by a single process electrodeposition method is provided to improve a thin CZTS film combining process which can be used for a solar battery by the single process electrodeposition method, thereby depositing a crystal film which has a large size. CONSTITUTION: A CZTS precursor is formed(S100). A substrate is prepared(S110). An electrolytic bath is for electrodeposition(S120). A CZTS precursor is formed by electrodeposition in the electrolytic bath(S130). A thin CZTS film is formed by heating the CZTS precursor(S200).