| 摘要 |
PURPOSE:To enable a photovoltaic device to be easily soldered and improved in productivity and reliability by a method wherein a back electrode is formed of a laminated metal film composed of aluminum, aluminum bronze additive metal, and copper. CONSTITUTION:Transparent electrode layers 21-23, an amorphous semiconductor layer 3, and board electrode layers 41-43 are laminated on a transparent insulating board 1. The metal electrode layers is formed of a laminated structure composed of an aluminum 400, an aluminum bronze additive metal 401, and a copper 402 most distant from an amorphous semiconductor layer 3. When a mask 6 is removed, back electrodes 41-43 formed into the prescribed shape and lead wire lead-out terminals 40 and 43 are formed. The lead wire lead-out terminals 40 and 43 and the back electrodes 41-43 are connected to the transparent electrodes 21-23 respectively through inter-cell connection paths 50-52. Thus, unit solar cell elements are connected in series or in series-parallel to constitute an amorphous silicon integrated solar cell. |
