▎ 摘　　要

NOVELTY - Weakly coupled enhanced graphene film comprises an enhanced graphene structure based on weak coupling, where the enhanced graphene structure based on weak coupling comprises many graphene units stacked vertically; the graphene unit is a single graphene sheet, or consists of two or more graphene sheets stacked in AB form; two vertically adjacent graphene units are weakly coupled, to promote the hot electron transition and increase the joint density of states and increasing the number of hot electrons in high-energy states; the stacking direction of the graphene units in the graphene structure is in the thickness direction of the graphene film; and the graphene film enhances the accumulation of hot electrons in high-energy states by the enhanced graphene structure based on weak coupling. USE - Weakly coupled enhanced graphene film for use in graphene photoelectric device (claimed). ADVANTAGE - The graphene film increases the joint density of states, enhances the light absorption, and promotes the hot electron transition by means of the weak coupling effect. This structure also reduces the requirements and costs of the film preparation process, and increases the success rate of film preparation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for graphene photoelectric device having a weakly coupled enhanced graphene film and a semiconductor substrate, where the weakly coupled enhanced graphene film is spread on the semiconductor substrate. DESCRIPTION OF DRAWING(S) - The drawing shows a separation apparatus Left cavity (11) Right cavity (12) Condenser tube (13) Water bath (14)