| 摘要 |
PURPOSE:To provide a photovoltaic element wherein it is restrained that heat is accumulated inside the element and it is possible to prevent that the characteristic of the element is deteriorated. CONSTITUTION:The surface of a semiconductor 3 which is provided with a semiconductor junction 6 displaying a photoelectric conversion function and the surface of electrodes 7 on the light-incident side are formed respectively to be protruding and recessed shapes, the surface area of a photovoltaic element is made large and porous silicon is utilized as a substance to make the surface area of the photovoltaic element large. |
