Very precise measurements confirmed many of the unusual effects theoretically predicted for graphene, but they also revealed effects of unanticipated additional interactions, which are not yet understood.
Very precise measurements confirmed many of the unusual effects theoretically predicted for graphene, but they also revealed effects of unanticipated additional interactions, which are not yet understood.
In yet another step toward making nanotech transistors from graphene nanoribbons, chemically-prepared graphene nanoribbons less than 10 nm wide were found to be uniformly room-temperature, field-effect transistors.
Nanotech materials useful for a wide variety of applications may result from the discovery that adding very small amounts of graphene to polymers greatly increases the desirable properties of the polymers.
Preliminary theoretical calculations show that it might be possible to develop a nanotech application in which clusters of a few boron atoms connect very small graphene semiconductors to make nanoelectronic devices.
Graphene has now been shown to retain essential properties when used to make transistors at the one-nanometer-scale.
In a proof-of-concept demonstration, large area graphene films several atomic layers thick were inexpensively produced.
Advancing the case for graphene in nanotech is the recent demonstration that the intrinsic mobility of electrons in graphene is much greater than in silicon or in any other conventional semiconductor.
IBM announced (credit PhysOrg.com) that stacking two layers of graphene—one on top of the other—reduces noise that has bedeviled attempts to build nanoelectronic circuits from graphene. From “IBM Scientists ‘Quiet’ Unruly Electrons in Atomic Layers of Graphite“: [IBM researchers] today announced a discovery that combats one of the industry’s most perplexing problems in using graphite… Continue reading Less noise with nanotechnology devices using two atomic layers of graphene
Forbes.com’s Josh Wolfe interviews Andre Geim, a prominent graphene researcher, about the latest nanotechnology buzzword and buzzmaterial — a free-standing, two-dimensional crystal of carbon in a hexagonal lattice. Of course, it’s not truly two-dimensional — it’s one atom thick, not zero atoms thick — but close enough: In the scientific community, the area of graphene… Continue reading Graphene: Nanotechnology crowd is agog
For nanotechnology watchers who are experiencing nanotube fatigue, Scientific American recaps a newer nanotech material capturing the imagination: Called graphene, it is essentially a nanotube unrolled—a single layer of atoms arranged like a honeycomb. The difference may sound cosmetic, but when the goal is manipulating things that are a few atoms thick, going from tube… Continue reading Nanotechnology's new darling: graphene
