Rain is normally a solar energy cell’s worst nightmare, but a team of Chinese scientists could make it a tremendous ally. They’ve developed a solar cell with an atom-thick graphene layer that harvests energy from raindrops, making it useful even on the gloomiest days. Water actually sticks to the graphene, creating a sort of natural capacitor — the sharp difference in energy between the graphene’s electrons and the water’s ions produces electricity. The catch is that the current technology isn’t all that efficient. It only converts about 6.5 percent of the energy it gets, which pales in comparison to the 22 percent you see among the world’s better solar panels . If the creators can improve the performance of this graphene-coated cell, though, they could have a dream solution on their hands — you wouldn’t have to live in a consistently sunny part of the world to reduce your dependency on conventional power. Via: Science News Journal Source: Wiley Online Library
Zothecula writes that researchers at the University of Glasgow have found a way to produce large sheets of graphene 100 times more cheaply than previous methods. Gizmag reports: “Since first being synthesized by Andre Geim and Kostya Novoselov at the University of Manchester in 2004, there has been an extensive effort to exploit the extraordinary properties of graphene. However the cost of graphene in comparison to more traditional electronic materials has meant that its uptake in electronic manufacturing has been slow. Now researchers at the University of Glasgow have discovered a way to create large sheets of graphene using the same type of cheap copper used to manufacture lithium-ion batteries.” Read more of this story at Slashdot. 
You’ve heard all about the wonder properties of graphene, so come meet its one dimensional cousin, carbyne. A chain of single carbon atoms to graphene’s two-dimensional layer of atoms, carbyne has some pretty amazing properties of its own. By one measure, it’s the strongest material in the world (over graphene!), and a new study finds it has the strange ability to go from conductor to insulator with a small stretch. Read more… 
There’s no denying that graphene is a wonderful material —strong, flexible, and highly conductive—but it’s taking a long time to become a commercial reality. Now, scientists working with a material called cadmium arsenide believe it offers many of the same benefits—but could actually be far easier to use in the real world. Read more… 
In case you haven’t heard, California is screwed. The drought has turned our perennially water-challenged state into a desiccated husk. In these dire times, we look toward desalination, an idea long-promised but never quite delivered in the U.S. But a spate of new technologies —graphene, solar mirrors, and more—could finally make desalination viable for our freshwater needs. Read more… 
