Abstract:
Disclosed are a vacuum evaporation source with a source residue discharge type shutter and an evaporation device including the same. The vacuum evaporation source with the source residue discharge type shutter comprises a vacuum evaporation source body including an outer container which provides a cylindrical inner space, a crucible which is mounted inside the outer container, and a heater which is arranged between the outer container and the crucible and heats the crucible; and a shutter which is disposed at the output side of the vacuum evaporation source body to open and close the output of the crucible and has multiple flow guides extended from an area corresponding to the output of the crucible to the outer area of the outer container to discharge a source residue condensed at the inner surface facing the output of the crucible to the outside of the outer container. The evaporation device according to the present invention has the above-described configuration and comprises multiple vacuum evaporation sources disposed to be inclined to the center of a substrate in a vacuum chamber.
Abstract:
이성분계 나노입자를 포함하는 슬러리의 숙성 단계가 도입된 CI(G)S계 박막의 제조방법 및 그 방법에 의해 제조된 CI(G)S계 박막이 제공된다. 본 발명의 CI(G)S계 박막의 제조방법은, CI(G)S계의 이성분계 나노입자를 제조하는 단계; 상기 이성분계 나노입자, CI(G)S계 원소를 포함하는 용액 전구체, 용매 및 킬레이트제를 혼합하여 하이브리드형 슬러리를 제조하는 단계; 상기 하이브리드형 슬러리를 5일 내지 10일 동안 숙성하는 단계; 숙성된 하이브리드형 슬러리를 코팅하여 CI(G)S계 박막을 형성하는 단계; 및 상기 형성된 CI(G)S 박막에 열처리하는 단계를 포함한다. 이에 의하여, CI(G)S계 태양전지 박막 제조 시 우수한 재현성 확보가 가능하고, 따라서 생산된 박막의 신뢰도를 향상시킬 수 있다.
Abstract:
PURPOSE: A method for forming a ZnO concavo-convex structure and a solar cell using the same are provided to form a uniform thin film on a concavo-convex structure by using a wet etching method. CONSTITUTION: A substrate (10) is prepared. A nanostructure (20) of which height and width is nanometer scale is formed. A zinc oxide thin film (30) is formed on the substrate having the nanostructure. The zinc oxide thin film is wet-etched. A concavo-convex structure (35) is formed by etching the periphery of the nanostructure.
Abstract:
태양전지용 CZTSe계 박막의 제조방법 및 그 방법에 의해 제조된 CZTSe계 박막이 개시된다. 본 발명의 CZTSe계 박막의 제조방법은, (S1) Cu, Zn, Sn 및 Se을 동시진공증발법에 따라 기판에 증착하는 단계; 및 (S2) 감소된 기판 온도에서 Sn과 Se을 동시진공증발법에 따라 추가로 증착시키는 단계를 포함한다. 본 발명에 따르면, 고온의 기판 온도에서 Cu, In, Sn, Se를 동시진공증발법을 이용하여 증착한 후 그보다 낮은 기판 온도에서 Sn과 Se을 추가로 증착함으로써 높은 기판 온도에서의 열처리에 의한 Sn 손실을 최소화하고, 박막 내 원소 분포를 균일하게 하여 궁극적으로 에너지 변환효율이 높은 태양전지용 CZTSe계 박막을 제조할 수 있다.
Abstract:
PURPOSE: A method for manufacturing a CIS based compound thin film using a rapid thermal process and a method for manufacturing a thin film solar cell using the CIS based compound thin film are provided to improve the efficiency of a light absorbing layer by increasing the crystallization of the CIS based compound thin film. CONSTITUTION: A CIS based compound thin film is formed on a substrate. A thermal selenization process of the CIS based compound thin film is performed by using a rapid thermal process. The CIS based compound thin film includes a CIS compound thin film, a CIGS compound thin film, or CZTS compound thin film. Se vapor is produced by heating Se metal. Se is vacuously deposited on the CIS based compound thin film.
Abstract:
PURPOSE: A Cu-In-Zn-Sn-(Se,S) thin film for solar cell and a preparation method thereof are provided to cut down manufacturing costs by reducing the amount of usage of In. CONSTITUTION: In a Cu-In-Zn-Sn-(Se,S) thin film for solar cell and a preparation method thereof, the Cu-In-Zn-Sn-(Se,S) thin film for solar cell is used as a light absorption layer in a solar cell. The Cu-In-Zn-Sn-(Se,S) thin film for solar cell is a CuInZnSnS4 thin film, a CuInZnSnSe2 thin film, or a CuInZnSnS4Se2 thin film. In the Cu-In-Zn-Sn-(Se,S) thin film,(Zn+Sn) /(In+Zn+Sn) is between 0 and 0.5.
Abstract:
PURPOSE: An apparatus and a method for manufacturing an I-III-VI2 compound semiconductor thin film are provided to improve reactivity by using a cracker cell which controls the amount of selenium gas or sulfur gas. CONSTITUTION: A substrate holder(112) is formed in a chamber(110). A transparent window is formed on the bottom of the chamber. An upper lamp unit(120) including a heating lamp(122) is hinge-combined with the opened upper side of the chamber. A lower heating lamp including a heating lamp(132) is combined with the lower side of the chamber. A cracker cell(140) supplies selenium gas or sulfur gas to the chamber.