▎ 摘　　要

NOVELTY - The detector comprises a detector main body provided with a substrate, a first electrode, a two-dimensional material heterojunction, and a second electrode. The two-dimensional material heterojunction is formed with an n-layer heterojunction by alternately laminating graphene and two-dimensional material. The two-dimensional material/graphene heterojunction is provided with a first electrode and a second electrode. The first electrode is connected with the second electrode. The value of n is 3 to 5 and the Fermi level from the bottom layer to the top layer is gradually reduced. USE - Non-symmetrical electrode two-dimensional material heterojunction cascade photoelectric detector. ADVANTAGE - The detector improves light response degree of the detector, and increases moving rate of the carrier due to potential gradient difference so as to improve response speed. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a non-symmetrical electrode two-dimensional material heterojunction cascade photoelectric detector.