Dry graphene transfer from metal foils

US10392248B2 · kind B2 · utility

Assignee

• The Government of the United States of America, as represented by the Secretary of the Navy · US

Inventors

• Evgeniya H. Lock · Annandale, US
• Mira Baraket · Oak Ridge, US
• Scott G. Walton · Fairfax, US
• Matthew Laskoski · Springfield, US
• Paul E. Sheehan · Springfield, US
• Shawn P. Mulvaney · Washington, US
• Daniel R. Hines · Lawrenceville, US

Key dates

• Filing date: Jun 26, 2018
• Grant date: Aug 27, 2019
• Expiry date: Jun 26, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31931
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for dry graphene transfer comprising growing graphene on a growth substrate, chemically modifying a transfer substrate to enhance its adhesion to graphene, contacting the graphene on the growth substrate with the transfer substrate and transfer printing; and separating the transfer substrate with attached graphene from the growth substrate. The growth substrate may be copper foil. The transfer substrate may be a polymer, such as polystyrene or polyethylene, or an inorganic substrate.