| 摘要 |
The problem to be solved by the present invention is to provide a solar battery which reduces obstructing circumstances in improvement of photoelectric conversion efficiency. The solar battery of the present invention comprises a semiconductor substrate of a first conductivity type, a first semiconductor layer of a second conductivity type formed along at a light transmitting surface of the semiconductor substrate and collecting photo-generated carriers based on solar beam of middle and long wavelength, and a second semiconductor layer of a second conductivity type formed at a light incident surface of the semiconductor substrate and collecting photo -generated carriers which cannot reach a first semiconductor layer among photo-generated carriers based on the solar beam of middle and long wavelength as well as collecting photo-generated carriers based on solar beam of short wavelength. |
