| abstract |
A solar cell element having improved power generation efficiency is provided. A solar cell element 100 has a substrate 110 , a mask pattern 120 , semiconductor nanorods 130 , a first electrode 150 and a second electrode 160 . The semiconductor nanorods 130 are disposed in triangular lattice form as viewed in plan on the substrate 110 . The ratio p/d of the center-to-center distance p between each adjacent pair of the semiconductor nanorods 130 and the minimum diameter d of the semiconductor nanorods 130 is within the range from 1 to 7. Each semiconductor nanorod 130 has a central nanorod 131 formed of a semiconductor of a first conduction type, a first cover layer 132 formed of an intrinsic semiconductor and covering the central nanorod 131 , and a second cover layer 138 formed of a semiconductor of a second conduction type and covering the first cover layer 132. |