| 摘要 |
<p>PROBLEM TO BE SOLVED: To substantially improve a power generation efficiency, in a solar battery by a nitride semiconductor.SOLUTION: A solar battery comprises a plurality of light absorption layers 103 and 105 provided between a first semiconductor layer 102 and a second semiconductor layer 106 and consisting of a nitride semiconductor. Preferably, the light absorption layers 103 and 105 have a thickness equal to or less than an interval of threading dislocation formed thereto. In addition, a tunnel junction 104 is formed in contact between the adjacent light absorption layers 103 and 105.</p> |
