News tagged with graphene

Graphene can emit laser flashes

Graphene is considered the jack-of-all-trades of materials science: The two-dimensional honeycomb-shaped lattice made up of carbon atoms is stronger than steel and exhibits extremely high charge carrier mobilities. ...

Oct 25, 2013
5 / 5 (17) 0 | with audio podcast

Laying down a discerning membrane

One of the thinnest membranes ever made is also highly discriminating when it comes to the molecules going through it. Engineers at the University of South Carolina have constructed a graphene oxide membrane ...

Oct 04, 2013
4.3 / 5 (3) 0 | with audio podcast

With 'ribbons' of graphene, width matters

Using graphene ribbons of unimaginably small widths – just several atoms across – a group of researchers at the University of Wisconsin-Milwaukee (UWM) has found a novel way to "tune" the wonder material, ...

Jul 03, 2014
4.6 / 5 (8) 0

Solar power heads in a new direction: thinner

Most efforts at improving solar cells have focused on increasing the efficiency of their energy conversion, or on lowering the cost of manufacturing. But now MIT researchers are opening another avenue for ...

Jun 26, 2013
4.7 / 5 (11) 5 | with audio podcast

Super-stretchable yarn is made of graphene

(Phys.org) —A simple, scalable method of making strong, stretchable graphene oxide fibers that are easily scrolled into yarns and have strengths approaching that of Kevlar is possible, according to Penn ...

Jun 23, 2014
4.9 / 5 (11) 0

Graphene surfaces on photonic racetracks

In an article published in Optics Express, scientists from The University of Manchester describe how graphene can be wrapped around a silicon wire, or waveguide, and modify the transmission of light through it.

Jul 28, 2014
5 / 5 (4) 0