| 摘要 |
PROBLEM TO BE SOLVED: To provide a solar cell capable of photoelectrically converting light in an ultraviolet region from blue with high efficiency.SOLUTION: A solar cell comprises a p-type semiconductor substrate and a columnar structure including a p-type GaN layer formed on the semiconductor substrate, an InGaN light-absorbing layer formed on the p-type GaN layer, and an n-type GaN layer formed on the InGaN light-absorbing layer. |
