| 摘要 |
PURPOSE:To improve photoelectric conversion efficiency by providing, on a conductive substrate, a lowest layer pin element and a surface layer pin element having a window for light input thereon and providing a power collecting transparent conductive film between both pin layers. CONSTITUTION:The lowest layer pin element 2 mainly formed by the amorphous silicon alloy and a surface layer pin element 3 which is formed on such element 2 and formed mainly by the amorphous alloy having a window for light input are formed on a conductive substrate 1. A transparent conductive film 7 is formed on the entire surface of the lowest layer pin element 2 between the lowest layer pin element 2 and the surface layer pin element 3. Moreover, since the window is provided to the surface layer pin element 3, the light entering the element partly reaches directly the lowest layer pin element 2 and therefore sufficient light can be applied to the lowest layer pin element 2. Accordingly a sufficiently high photoelectric conversion efficiency can be obtained.
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