摘要:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a CZTS thin film solar cell having high photoelectric conversion efficiency.SOLUTION: A CZTS thin film solar cell manufacturing method comprises the steps of: forming a metal back electrode layer (2) on a substrate (1); forming a metal precursor film (30) containing at least Cu, Sn, Zn on the metal back electrode layer (2); annealing the substrate (1) on which the metal precursor film (30) is formed; forming a p-type CZTS light absorption layer (3) by sulfurizing and/or seleniding the annealed substrate (1); and forming an n-type transparent conductive film (5) on the p-type CZTS light absorption layer (3).
摘要:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a CZTS-based thin-film solar cell having high photoelectric conversion efficiency.SOLUTION: A CZTS-based thin-film solar cell is formed by: forming a back surface electrode layer (2) on a substrate (1); forming, on the back surface electrode layer (2), a film (20) made of an oxide of a material of this electrode layer; forming a p-type CZTS-based light absorbing layer (3) on the formed oxide film; and forming an n-type transparent conductive film (5) on the p-type CZTS-based light absorbing layer (3). The film (20) can be formed by annealing the substrate (1) having the back surface electrode layer (2) formed thereon, in the atmosphere.
摘要:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a CZTS thin film solar cell having high photoelectric conversion efficiency.SOLUTION: A CZTS thin film solar cell manufacturing method comprises the steps of: forming a metal back electrode layer (2) on a substrate (1); forming a p-type CZTS light absorption layer (3) on the metal back electrode layer (2); forming an n-type high resistance buffer layer (4) on the p-type CZTS light absorption layer (3); subsequently annealing, in an oxygen-containing atmosphere, the substrate (1) on which the n-type high resistance buffer layer (4) is formed; and forming, after annealing, an n-type transparent conductive film (5) on the n-type high resistance buffer layer (4).
摘要:
PROBLEM TO BE SOLVED: To manufacture a thin-film solar cell which has high photoelectric conversion efficiency by using an InS buffer layer.SOLUTION: The thin-film solar cell is manufactured by: forming a metal backside electrode layer on a substrate; forming a p-type light absorbing layer on the metal backside electrode layer; oxidizing a surface of the p-type light absorbing layer; forming an InS buffer layer as an n-type high-resistance buffer layer, on the oxidized p-type light absorbing layer; and forming an n-type transparent conductive film on the InS buffer layer.
摘要:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a CZTS thin film solar cell having high photoelectric conversion efficiency.SOLUTION: A CZTS thin film solar cell manufacturing method comprises the steps of: forming a metal back electrode layer (2) on a substrate (1); forming a p-type CZTS light absorption layer (3) on the metal back electrode layer (2); forming an n-type transparent conductive coat (5) on the p-type CZTS light absorption layer (3); and subsequently annealing, in an oxygen-containing atmosphere, the substrate (1) on which the n-type transparent conductive coat (5) is formed.
摘要:
PROBLEM TO BE SOLVED: To manufacture a compound-based thin film solar cell having high photoelectric conversion efficiency.SOLUTION: A compound thin film solar cell manufacturing method comprises: forming a first electrode layer (2) on a substrate (1); forming a compound-based p-type light absorption layer (3) on the first electrode layer (2); forming a CdS-based buffer layer (4A) on the p-type light absorption layer (3); subsequently annealing the substrate (1) including the CdS-based buffer layer (4A) in an oxygen-containing atmosphere; forming an InS-based buffer layer (4B) on the CdS-based buffer layer (4A) after annealing; and subsequently forming a second electrode layer (5).
摘要:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a CZTS based thin film solar cell having high photoelectric conversion efficiency.SOLUTION: A CZTS based thin film solar cell is manufactured in such a way that a metal back electrode layer (2) is formed on a substrate (1), and a metal precursor film containing at least Cu, Zn and Sn is formed on the metal back electrode layer (2). Then, the substrate (1) with the metal precursor film formed thereon is processed in a furnace filled with selenium-containing gas to turn the metal precursor film into a selenide, and the metal precursor film now turned into a selenide is sulfurized by introducing sulfur- or sulfide-containing gas into the furnace to form a p-type CZTS based light absorption layer (3) containing selenium and sulfur. Thereafter, an n-type transparent film (5) is formed on the p-type CZTS based light absorption layer (3).
摘要:
PROBLEM TO BE SOLVED: To form CuZnSnS(CuZnSnSe, CuZnSn(SSe)) excellent in crystal quality as a light absorption layer in a CZTS thin film solar cell, thereby providing a CZTS thin film solar cell high in conversion efficiency.SOLUTION: A method of fabricating a light absorption layer of a CZTS thin film solar cell uses a compound semiconductor including a chalcogen element (α) comprising copper (Cu), zinc (Zn), tin (Sn) and at least one of sulfur (S) and selenium (Se). The method of fabricating the light absorption layer of a CZTS thin film solar cell includes the steps of: forming a ZnSnαfilm 133 on a metal rear face electrode layer 12 formed on a glass substrate 11; forming a Cu film 134 on the ZnSnαfilm 133 to form a precursor film 13a comprising the ZnSnαfilm 133 and the Cu film 134; and subjecting the precursor film 13a to heat treatment in an atmosphere including the chalcogen element (α) to form a CZTS light absorption layer 13.