| 摘要 |
PURPOSE:To improve the area efficiency of solar cells by a method wherein unit solar cells are concentratedly connected with one another at the protrusions from one electrode of each unit solar cell. CONSTITUTION:Unit solar cell group composed of backside electrodes 21-24, photoelectric conversion layers 31-34 made of amorphous silicon and light transmitting electrodes 41-43 successively laminated on a glass substrate 1 is series-connected to protrusions 62-64 from the backside electrodes 22-24 of the unit solar cell adjoining the light-transmitting electrodes 41-43 by using metallic connecting electrodes 71-73. Through these procedures, the area efficiency can be improved by narrowing the gaps between the unit solar cells because any electric short-circuit between the backside electrodes 21-24 and the light transmitted electrodes 41-43 can be prevented even if the relative positional relations between the backside electrodes 21-24, the photoelectric conversion layers 31-34, the light-transmitting electrodes 41-43 and the connecting electrodes 71-73 are slightly shifted because of the backside electrodes 21-24 entirely covered with the amorphous silicon layers 31-32. |
