Doing some science on the once and future miracle material. I’m not holding my breath, but if graphene manages to reach fifty percent of its hype, it’s going to change the world. It’s that hyped, and it truly has that much promise.
From the link:
“We found that if a single graphene sheet is grown on a metal like ruthenium, the metal binds very strongly to the carbon atoms and disrupts the characteristic properties normally found in isolated graphene,” Sutter said. “But those properties re-emerge in subsequent layers grown on the substrate.”
In other words, the first graphene layer grown on ruthenium satiates the metal substrate, allowing the rest of the layers to reclaim their normal properties.
“As a result of this growth process, a two-layer stack acts like an isolated monolayer of graphene and a three-layer stack acts like an isolated bilayer,” Sutter said.
The findings of the group, which also includes Brookhaven researchers Mark Hybertsen, Jurek Sadowski, and Eli Sutter, lays groundwork for future graphene production for advanced technologies, and helps researchers understand how metals — for example in device contacts — change the properties of graphene.