▎ 摘　　要

NOVELTY - The method involves mechanically polishing a metal substrate i.e. copper substrate (1) for removing a metal substrate surface impurity and metal oxide. The metal substrate is ultrasonically washed for 10 degrees centigrade using acetone. The metal substrate is cleaned with de-ionized water. A metal substrate is placed after removing impurity in a quartz crucible(3). A solid carbon source powder is weighted by balance. A graphene/metal substrate sample is obtained by uniformly paving the solid carbon source powder on the substrate. A gas inlet valve is opened. A gas flow is controlled to introduce inert gas into an annealing furnace chamber. A substrate metal is melted into a liquid state. A heat preservation is performed. An vacuum annealing furnace(6) is cooled to room temperature. A liquid substrate is re-solidified. The sample is formed. The graphene/metal substrate sample is taken out to obtain a graphene with large size and attached on a surface of the metal substrate. USE - Method for obtaining a large size graphene by using a solid carbon source for an industrial production field. ADVANTAGE - The method enables directly using the solid carbon source to prepare graphene in a simple and convenient manner. The method enables providing better controllability and high safety for realizing an industrial production. DETAILED DESCRIPTION - The quartz crucible is a boron nitride crucible. DESCRIPTION OF DRAWING(S) - The drawing shows a cross sectional view of a structure for obtaining a large size graphene by using a solid carbon source. Copper substrate (1) Tungsten plate (2) Quartz crucible (3) Cementious powder (4) Quartz plate (5) Vacuum annealing furnace (6)