Light-operated memristor and preparation method thereof

The invention discloses a light-operated memristor and a preparation method thereof, belongs to the technical field of memristors, and can increase the lamination density of an existing memristor and reduce the power consumption of the existing memristor. The light-operated memristor comprises a first light source layer, a memristor array layer and a second light source layer which are sequentially stacked. The memristor array layer comprises a plurality of memristor devices which are distributed in an array; the first light source layer comprises a plurality of first light-emitting devices which are distributed in an array; the second light source layer comprises a plurality of second light-emitting devices which are distributed in an array; the memristor devices, the first light-emitting devices and the second light-emitting devices are in one-to-one correspondence; the first light emitting device is used for emitting first wave band light; the first wave band light is used for controlling the corresponding