| 摘要 |
PURPOSE:To obtain a solar battery which can prevent an element from breaking its function due to shortcircuit between a surface electrode and a metallic substrate even if a crack is produced by interposing an insulating film between the part which might crack of an amorphous semiconductor layer directly under a bonding position of an external lead wire at the surface side of the battery and the substrate. CONSTITUTION:The connection of an external lead wire 5 cause a crack 6 which reaches an amorphous semiconductor layer 2 from a metal electrode 4 due to heat or pressure upon working such as supersonic welding, spot welding or soldering. Before the layer 2 is grown on a metallic substrate 1, a silicon oxidize film 7 is formed directly under the position to be bonded a surface side lead wire 5. Then, even if the crack 6 occurs, the shortcircuit between the electrode 4 and the substrate 1 is prevented, thereby occurring no damage of the element. The insulating film may be a silicon nitride film by plasma CVD method or various insulating film deposited. |
