| 摘要 |
PURPOSE:To sufficiently absorb solar light rays, etc., and to improve conversion efficiency by forming a photoelectric conversion layer on an uneven board provided with many grooves on the surface, and providing a trestle for mounting a solar cell so that the grooves are directed in east to west direction. CONSTITUTION:A photoelectric conversion layer 1 is formed on an uneven board 2-1 having many parallel grooves 3, 3,... to form a solar cell. In this case, the grooves 3, 3,... are so mounted on a trestle 4 as to be directed in east to west direction. Accordingly, since a solar light ray is moved approximately in parallel with the grooves from sunrise to sunset, influence of anisotropy on the surface of the cell is reduced, influence of shade of the edges of the grooves is decreased, and reuse of reflected light on the surface can be utilized. Thus, the solar light ray can be effectively absorbed, photoelectric conversion efficiency is improved, and the generating cost can be reduced. |
