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. An electromagnetic interference shielding structure for shielding electromagnetic radiation emitted from a source at frequencies greater than one megahertz comprising, in combination:
the source configured to emit electromagnetic radiation at radio, microwave and terahertz frequencies; one or more graphene sheets disposed directly on a device to be protected from the electromagnetic radiation, wherein at least one of the graphene sheets is doped with a dopant having a dopant concentration in an amount effective to absorb electromagnetic radiation at frequencies greater than 1 megahertz, wherein the device includes an electronic circuit, and wherein the dopant concentration (n) is 1e1013 cm−2>n>1e1012 cm−2 or 1e1012 cm−2>n>0 cm−2.