▎ 摘　　要

NOVELTY - The method for transferring graphene, involves (1) stirring blend in chloroform to fully dissolve, and obtaining the blend solution, (2) cutting graphene grown on copper foil to specified size, (3) spin coating blend solution on the surface of graphene grown on copper foil, and naturally volatilizing solvent for 1-2 days, and vacuuming to obtain compound, (4) obtaining the composite by electrochemical bubble method for etching the copper foil to obtain poly L-lactic acid (PLLA)/poly(methyl methacrylate) PMMA blend film bonding graphene, (5) transferring obtained graphene and PLLA/PMMA blend film bonding to 0.1 mol/L hydrochloric acid solution and rinsing with deionized water to remove residual sodium hydroxide solution on graphene film, transferring film to target substrate and drying, and (6) transferring thin film to target substrate for micro-structure research, and carrying out heat treatment, adding N,N-dimethyl formamide for etching, and drying. USE - Method for transferring graphene for preparing graphene photoelectric device, and used in material learning, micro-nano processing, energy, biomedicine and drug delivery. ADVANTAGE - The graphene transfer method improves the transfer quality of graphene. DETAILED DESCRIPTION - The method for transferring graphene, involves (1) stirring blend in chloroform to fully dissolve, and obtaining the blend solution, (2) cutting graphene grown on copper foil to specified size, (3) spin coating blend solution on the surface of graphene grown on copper foil, and naturally volatilizing solvent for 1-2 days, and vacuuming for more than 24 hours to obtain compound, (4) obtaining the composite by electrochemical bubble method for etching the copper foil to obtain poly L-lactic acid (PLLA)/poly(methyl methacrylate) PMMA blend film bonding graphene, (5) transferring obtained graphene and PLLA/PMMA blend film bonding to 0.1 mol/L hydrochloric acid solution and rinsing with deionized water to remove residual sodium hydroxide solution on graphene film, transferring film to target substrate and drying, and (6) transferring thin film to target substrate for micro-structure research using optical microscope, and carrying out heat treatment using micro-heat table, adding N,N-dimethyl formamide for etching, and after etching, taking out sample and drying. DESCRIPTION OF DRAWING(S) - The drawing shows schematic view illustrating the crystalline/amorphous polymer blend film in transition substrate of graphene transfer method. (Drawing includes non-English language text).