METHOD FOR PRODUCING A GRAPHENE FILM
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United States of America Patent
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Dec 25, 2014
app pub date -
Nov 21, 2012
filing date -
Nov 22, 2011
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Abstract
A process for manufacturing graphene film, comprising the controlled growth of graphene film, comprises the following steps: depositing at least one metal layer on the surface of a substrate; and continuously producing a carbon-rich buried region inside said metal layer by bombarding the metal layer with a flux of carbon atoms and/or carbon ions with an energy higher than about a few tens of electron volts so that they penetrate a portion of the metal layer, allowing said carbon-rich region to be created and maintained, so as to form, by diffusion, through said metal layer, a graphene film at the interface of said metal layer with said substrate.
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