SOLAR CELL DEVICE AND METHOD FOR MANUFACTURING SAME

摘要

Provided is a solar cell device wherein: a Cu-containing metal layer exhibits good lamination strength with respect to an Si substrate and a tab wire; and diffusion of Cu into the substrate and an Ag finger wiring line is suppressed. Provided is a solar cell device 10 which comprises a silicon semiconductor substrate 1, a Cu-containing metal layer 4, an Ag-containing finger wiring line 2, and an interface layer 3 containing an oxide or an organic compound. The Ag-containing finger wiring line 2 is laminated on the light receiving surface side of the silicon semiconductor substrate 1; the interface layer 3 is laminated on the light receiving surface side of the silicon semiconductor substrate 1; and the Cu-containing metal layer 4 is laminated on the interface layer 3 and is arranged at a distance from the Ag-containing finger wiring line 2.