| 摘要 |
According to an embodiment of the present invention, a solar cell has: a light receiving layer (1) formed of a substrate having a pn junction; a metal layer (2), which is formed on the light receiving layer (1), and which has a periodic pattern structure that is smaller than the wavelength of light to be inputted; and a first dielectric material layer (3) that is formed to cover the metal layer (2). The film thickness of the first dielectric material layer (3) is equal to or less than a thickness (λ/4) based on the wavelength of the light to be inputted. With such solar cell structure, the solar cell achieving both efficiency improvement and reflectance reduction of a short wavelength region at one time can be provided. |
