| 摘要 |
PURPOSE:To increase the shortcircuit current and release voltage while promoting the curve factors secondarily thereby improving the photoelectric conversion efficiency by forming multiple protrusions on a substrate and on the protrusions a conductive electrode is formed, the surface opposite to the substrate being provided with fine irregularities. CONSTITUTION:Multiple protrusions are formed on the surface of a metallic substrate 11 while an insulating layer 9 with even film thickness is formed on the protrusions to reduce the reflecting power of light on the surface of a transparent conductive layer 16. Furthermore, a conductive electrode 12 with even film thickness is formed on the insulating layer 9 while the surface of conductive electrode 12 reverse to the surface facing the metallic substrate 11 is made rugged i.e. formed into a surface with fine irregularities. Resultantly, the surface of conductive electrode 12 is provided with two kinds of irregularities comprising the protrusions 18 of metallic substrate 11 and the fine irregularities 19 of said electrode 12 itself. Through these procedures, the shortcircuit current can be increased while promoting the curve factors thereby improving the photoelectric conversion efficiency. |
