▎ 摘 要
NOVELTY - A normal pressure chemical vapor deposition of high quality dual layer graphene thin film comprises pre-processing a copper foil by using ethanol and acetone ultrasonic cleaning at 850-1050 degrees C with hydrogen and argon (1:2-2:1), introducing 0.5-3 standard cubic centimeter of acetylene gas for 7-30 minutes, cooling temperature to below 700 degrees C, stopping inletting hydrogen, cooling to room temperature. USE - Method for normal pressure chemical vapor depositing high quality dual layer graphene thin film. ADVANTAGE - The prepared graphene film has high quality.