METHOD FOR MANUFACTURING CZTS-BASED THIN FILM SOLAR CELL WITH ZN(O, S) BUFFER-LAYER

摘要

The present invention relates to a method for manufacturing a CZTS-based thin film solar cell with a Zn (O, S) buffer layer wherein particularly the Zn (O, S) buffer layer at an accurate ratio can be formed by an atom layer deposition method. According to the method for manufacturing a CZTS-based thin film solar cell with a Zn (O, S) buffer layer according to the present invention, a ratio of zinc oxide (ZnS) and zinc sulfide (ZnO) in the Zn (O, S) buffer layer can be accurately controlled by forming the Zn (O, S) buffer layer on a light absorption layer of CZTS by the atom layer deposition method; loss of current and voltage on an interface is reduced as the quality of the interface, coming in contact with the CZTS-based light absorption layer, is increased by the atom layer deposition method; and an environmental pollution problem can be solved as CdS, which is a material used for an existing buffer layer, is not used.