▎ 摘　　要

NOVELTY - Forming (M1) single-crystal grapheme involve cleaning a surface of a catalyst, annealing the surface of the catalyst, applying a carbon source to the surface of the catalyst; and growing single-crystal graphene on surface of the catalyst. USE - For forming single-crystal grapheme (claimed), for fabrication of electrical devices e.g. field-effect transistors (FET), transparent electrodes, photovoltaic devices, liquid crystal display devices, and touch screens. The carbon source is selected from hydrocarbons, polymers, non-polymeric carbon sources, small molecules, organic compounds, fullerenes, fluorenes, carbon nanotubes, phenylene, ethylenes, sucrose, sugars, polysaccharides, carbohydrates, and/or proteins (preferably hydrocarbon). The hydrocarbon is methane. ADVANTAGE - The method does not require the use of highly purified catalysts, single crystal metals, extremely low carbon concentrations, or noble metal substrates (e.g. Pt). The method is controllable, convenient, low cost, and large-scale methods of growing single-crystal graphenes that can be readily transferred to various surfaces. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for forming (M2) stacked layers of single crystals of grapheme involving cleaning a surface of a catalyst; annealing the surface of the catalyst; applying a carbon source to the surface of the catalyst, and growing stacked layers of single crystals of graphene on the surface of the catalyst. INDEPENDENT CLAIMS are included for the following: forming stacked layers of single crystals of grapheme involving cleaning a surface of a catalyst, annealing the surface of the catalyst, applying a carbon source to the surface of the catalyst, and growing stacked layers of single crystals of graphene on the surface of the catalyst.