Abstract:
A method for manufacturing CIGS nanorods or nanowires according to an embodiment of the present invention includes a deposition preparation step of placing raw materials including copper, indium, gallium, and selenium and a substrate in a reactor, and a deposition step of growing the CIGS nanorods or nanowires on a substrate by maintaining the temperature of the reactor in which a carrier gas flows at a constant flow rate at 850-1000°C. According to the method of the present invention, provided are Cu(In,Ga)Se_2 nanorods or nanowires having a uniform composition distribution, high light absorptivity, and high crystallinity without using a catalyst.
Abstract:
PURPOSE: A thin film solar cell, a method for manufacturing the same, and a method for manufacturing the optical absorption layer of the same of the same are provided to improve the conversion efficiency of the solar cell by modifying the surface of the optical absorption layer. CONSTITUTION: A rear electrode is formed on a substrate. An optical absorption layer, based on a copper indium gallium selenide material, is formed on the rear electrode. The surface of the optical absorption layer is treated, and a nano-pattern is formed on the surface of the optical absorption layer in order to improve an optical absorption rate. A buffer layer and a transparent electrode are successively formed on the surface-treated optical absorption layer.
Abstract:
본 발명은 투명전극과; 상기 투명전극의 후방에 형성되며, 태양광을 흡수하여 기전력을 발생시키는 CIGS 재질의 광흡수층과; 상기 투명전극과 광흡수층의 사이에 형성되는 버퍼층; 및 상기 광흡수층의 후면에 형성되는 배면전극을 포함하고, 상기 광흡수층은 광흡수율이 증가되도록 표면 처리를 통한 나노 패턴을 구비하는 것을 특징으로 하는 박막형 태양전지와 이의 제조방법, 및 박막형 태양전지의 광흡수층 제조방법을 개시한다.