| 摘要 |
PURPOSE: To make it possible to use effectively light incident on a semiconductor layer by installing a semiconductor layer having a semiconductor junction part on the front surface or the rear surface of a white-colored ceramic board which forms a large number of Via holes and installing an electrode on both the front and rear surfaces of the semiconductor layer. CONSTITUTION: On a light receiving surface side of a semiconductor layer 2 there are installed a light receiving surface electrode 3 which is made of silver (g), for example and a reflection preventive film 6 which comprises a nitriding silicon film, for example on the rear surface side of the semiconductor layer 2. On the rear surface side of the semiconductor layer 2, there is installed a silver-made rear surface electrode 4, to which aluminum is added, for example. Since a white colored-ceramic board 1 is used so as to support the semiconductor layer 2, almost all light penetrating the semiconductor layer 2 is not being absorbed in the white colored ceramic board 1, and it is reflected on the surface of the white colored ceramic board 1 and returns to the semiconductor layer 2 once again. It is, therefore, possible to use effectively the light which enters the semiconductor layer 2 in this solar cell, thereby producing a highly efficient solar cell. |
