| 摘要 |
Solar cell element with a carrier (14), a thin film layer structure on a surface of the carrier, the thin film layer structure comprises a transparent first electrode layer (20), active layers (22, 23) in which a portion of the energy of the incident light is absorbed and a second electrode layer (24), the thin film layer structure has a light reflecting rear boundary surface, and the surface of said carrier (14) comprises at least two planar surface regions that close and angle with and form continuation of each other so that between them a recess is formed, and a portion of light reflected from the rear boundary surface of a first surface region will pass through the recess to fall on the second surface region and generates additional charge carriers therein, and the thin film structure on the surface regions constitutes a uniform uninterrupted thin film structure, wherein the extent of absorption of the thin film structure in the visible spectral region of light is at most 90% of the energy of the incident light. A plurality of the solar cell elements forms a solar cell arrangement, in which the carrier (14) is common for all cell elements and a surface of the carrier (14) has a plurality of juxtaposed pyramid-like recesses on which the thin film layers are provided. |
