| 摘要 |
PURPOSE:To solve an inherent structural problem of a photovoltaic device that it has a connecting section which electrically connects a light receiving plane electrode film with a second back plate electrode film by a method wherein an electrical connection between the second back plate electrode film and the light receiving plate electrode film is made through the intermediary of through holes which are provided to an insulating film and a semiconductor film and whose diameters are equal to each other. CONSTITUTION:A transparent light receiving plane electrode film 1, a semiconductor film 2 including an optical active layer 2, a first back plate electrode film 3, an insulating film 4, and a second back plate electrode film are insulated to form a photovoltaic device, where the second back plate electrode film 5 and the light receiving plane electrode film 1 are electrically connected through two or more points inside a light receiving region, and the above connection between the second back plate electrode film 5 and the light receiving plate electrode film 1 is made through the intermediary of through-holes which are provided to the insulating film 4 and the semiconductor film 2 and equal to each other in diameter. And, for instance, the diameter of the opening of the first back plate electrode film 3 is larger than those of the above through-holes provided for connection, and an edge 3' facing the opening is positioned behind an edge 2' of the smaller through-hole of the semiconductor film 2' By this setup, as a sufficient insulation distance can be provided between the first back plate electrode film 3 and the light receiving plane electrode film 1, not only a leakage current is prevented from occurring in the connecting section concerned but also a short circuit failure can be prevented. |
