| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solar battery with improved efficiency in converting light energy to electric energy. <P>SOLUTION: The solar battery comprises a first conductive semiconductor substrate 6a, a first electrode 2a provided on the first surface M1a of the semiconductor substrate 6a, a second conductive semiconductor region 8a provided on the second surface M2a of the semiconductor substrate 6a, a nano column region 9a being provided on the semiconductor region 8a and having a plurality of nano columns 10a comprising InGaN, an InGaN region 18a being provided on the nano column region 9a and being connected to the plurality of nano columns 10a, and a second electrode 24a provided on the InGaN region 18a. <P>COPYRIGHT: (C)2008,JPO&INPIT |
