▎ 摘　　要

NOVELTY - Visible photocell/cell cultured in-vitro sheet harvesting silicon/graphene composite surface comprises silicon substrate, single-layer graphene and protein layer from bottom to top. The silicon substrate and single-layer graphene forms Schottky junction. The silicon substrate has n-type doping. The protein layer is fetal calf serum, bovine serum albumin, fibronectin or collagen. USE - Visible photocell/cell cultured in-vitro sheet harvesting silicon/graphene composite surface. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of visible photocell/cell cultured in-vitro sheet harvesting silicon/graphene composite surface comprising cleaning and polishing surface of silicon substrate, transferring layer of graphene, drying, preserving heat at 500 degrees C for 60 minutes under argon atmosphere to obtain graphene layer, cleaning with water and ethanol, soaking sample in protein solution for 0.5-24 hours and physical adsorbing to obtain protein layer.