Graphene based structures and methods for shielding electromagnetic radiation

摘要

Electromagnetic interference shielding structures and methods of shielding an object form electromagnetic radiation at frequencies greater than a megahertz generally include providing highly doped graphene sheets about the object to be shielded. The highly doped graphene sheets may have a dopant concentration greater than >1e1013 cm−2, which is effective to reflect the electromagnetic radiation or a dopant concentration of 1e1013 cm−2>n>0 cm−2, which is effective to absorb the electromagnetic radiation.

主权项

1. A method for shielding an object from electromagnetic radiation at frequencies greater than a megahertz emitted from an electromagnetic source, comprising:
disposing directly onto the object one or more graphene sheets stackedly arranged and in direct contact with one another, wherein at least one or more of the graphene sheets are doped with a dopant selected from a metal salt selected from the group consisting of metal salts and inorganic acids in amount effective to absorb or reflect the electromagnetic radiation at frequencies greater than 1 megahertz, wherein the object includes an electronic circuit and is encapsulated with the one or more graphene sheets and wherein the one or more graphene sheets are not a component of the electronic circuit.