| 摘要 |
PROBLEM TO BE SOLVED: To provide a wavelength dividing/converging type solar cell which can efficiently convert sunlight energy into electrical energy in a wide range of spectrum, without using an expensive tandem type elements. SOLUTION: In a converging system 1 having a curved surface 1a to reflect/ converge an incident light, a first solar cell for absorbing wavelength elements on the low-energy side is arranged on the surface 1a, and a second solar cell for absorbing wavelength elements on the high-energy side is arranged on the converging surface 1b. In addition, the first solar cell for absorbing wavelength elements on the high-energy side is arranged on the curved surface 1a, and the second solar cell for absorbing wavelength elements on the low-energy side is arranged on the converging surface 1b. Thus, sunlight energy in such a range of spectrum that cannot be converted photoelectrically by the first solar cell is photoelectrically converted by the second solar cell. |
