Method of manufacturing graphene substrate, and graphene substrate

摘要

Provided is a graphene substrate, which is manufactured by: bringing a metal layer into contact with a carbon-containing layer and heating the metal layer to dissolve carbon in the carbon-containing layer into the metal layer; and cooling the metal layer to precipitate the carbon in the metal layer as graphene on any substrate surface.

主权项

1. A method of manufacturing a graphene substrate, comprising the steps of:
(a) bringing a metal layer into contact with a carbon-containing layer and heating the metal layer to dissolve carbon in the carbon-containing layer into the metal layer; and (b) cooling the metal layer to precipitate the carbon in the metal layer as graphene on a surface of a heat-resistant material brought into contact with the metal layer to allow the metal layer to become liquid and to dissolve carbon in the carbon-containing layer into the metal layer, wherein the metal layer comprises a metal having a carbon solubility at a ppm level and a relatively low melting point to be liquid in a heating temperature range between 600° C. and 1200° C., and wherein (b) further comprises keeping the metal layer at a constant temperature between 400° C. and 600° C.