Walt de Heer of Georgia Tech in Atlanta, with his team has made ribbons that conduct electricity without resistance for 10 micrometers, and a 1,000 times faster than previously designed nanoribbons( Single atom thick carbon threads).
Previously the nanoribbons were designed which left it with jagged edges which means higher resistance and in turn disrupted the flow of electrons. The ribbons designed by Walt de Heer and his team would conduct electricity 10 times higher than previously thought in theory.
Graphene had already better conduction than other elements(at normal temperature) which could improve our current circuits in reducing overheating issues and transmit signals.
Rather than making broader graphene sheets and then cutting them into ribbons, the team grew the graphene on the side walls of ridges of silicon carbide, a material already used widely in electronics. Using a process first described in 2010 (ref. 2), the researchers heated the compound to more than 1,000 °C. The silicon atoms then evaporated, leaving behind a 40-nanometre-wide layer of graphene. This process means that there are no dangling bonds or rough edges to scatter electrons, says de Heer.
Also a Polish startup has started manufacturing Graphene sheets. Learn more >>
Image source : Nature.com