| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a protective substrate for photovoltaic device, wherein the protective substrate is suitable for constituting the photovoltaic device higher in photoelectric conversion efficiency than a conventional structure; and to provide a method of manufacturing the same. <P>SOLUTION: The protective substrate for photovoltaic device is constructed such that a fine uneven structure 102 is formed on one surface of a transparent substrate 101, the area of a part which is not more than 60°in angle between a tangent of a protruded surface constituting the fine uneven structure 102 and a normal relative to a substrate surface is at least 5% of the entire area of the fine uneven structure, the form of the protruded part is approximate to the form of a section partially cut out of a sphere, and the relation between the radius A of curvature of the protruded part and the radius B of the approximate circle of the cut-out section is expressed by a formula B≥A/2. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
