| 摘要 |
PURPOSE:To easily obtain a solar battery of high conversion efficiency by a method wherein a clear electrode containing SnO and InO is allowed to increase SnO more as it goes closer to the active layer and contain only SnO at the interface with the active layer. CONSTITUTION:The clear electrode layer 2 of the mixed body of InO and SnO is formed on a clear glass plate 1. The layer 2 is allowed to reduce the rate of InO continuously or stepwise at it goes closer to the Si active layer 3, then the rate of SnO increases, and accordingly the layer 2A at the interface between the active layer 3 is constituted of only SnO. Amorphous Si 3 and an Au electrode 4 are superposed on this layer 2. By this constitution, a hetero junction of good characteristic is formed of the layer 2A containing no InO but only SnO and the active layer 3. Since InO is contained at a large rate, the specific resistance of the layer 2 is small, accordingly the generated photocurrent flows without accompanying a large resistance loss in the layer 2, and therefore very large conversion efficiency can be obtained. |
