Photoelectric element

The invention discloses a photoelectric element. The photoelectric element comprises a substrate; the first semiconductor lamination layer is arranged on the substrate and comprises a first active layer used for emitting or absorbing first light, and the first light has a first wavelength; the second semiconductor lamination layer is arranged on the first semiconductor lamination layer and comprises a second active layer used for emitting or absorbing a second light ray, the second light ray has a second wavelength, and the first wavelength is larger than the second wavelength; the first optical structure is arranged between the first semiconductor lamination layer and the second semiconductor lamination layer and comprises a plurality of first structures and a plurality of second structures which are alternately and periodically arranged along a horizontal direction according to a first period; and the interfaces among the first semiconductor lamination layer, the second structure and the second semiconducto