▎ 摘　　要

NOVELTY - Directional growth of graphene comprises placing base material in reaction chamber, applying voltage, adding hydrogen gas, heating, adding carbon-based compound gas, generating plasma, controlling temperature and cooling. USE - Method for directionally growing graphene (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation system comprising plasma generating source, supply chamber, sample frame, anode and cathode plates, voltage device, vacuum pump, gas source, flow controllers and voltage supply.