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Graphene

Instead of the usual carbon atoms, artificial graphene is made from crystals of traditiona...

Graphene is truly a 21st-century wonder material, finding use in everything from solar cells to batteries to tiny antennas. Now, however, a group of European research institutes have joined forces to create a graphene knock-off, that could prove to be even more versatile.  Read More

This schematic illustration of a graphene plasmonic nano-antenna shows how short wavelengt...

Smart dust. Utility fog. Programmable matter. Grey and blue goo. Cooperating swarms of micron-sized devices (motes) offer completely new solutions and capabilities that can hardly be imagined. However, cooperation requires communication, and conventional radio or optical networking simply isn't practical at this size. Now researchers at Georgia Tech have invented a plasmonic graphene nano-antenna that can be efficiently used at millimeter radio wavelengths, taking one more step toward smart dust.  Read More

Crystal structure of sodium bismuthide (Na3Bi), one of the newly discovered 3D topological...

Exciting times are ahead in the high-tech industries with the discovery by three independent groups that a new class of materials mimic the special electronic properties of graphene in 3D. Research into these superfast massless charge carriers opens up a wide range of potential applications in electronics, including smaller hard drives with more storage capacity, faster transistors and more efficient optical sensors.  Read More

Researchers are claiming a record efficiency of 15.6 percent for a new graphene-based sola...

In 2012, researchers from the University of Florida reported a record efficiency of 8.6 percent for a prototype solar cell consisting of a wafer of silicon coated with a layer of graphene doped with trifluoromethanesulfonyl-amide (TFSA). Now another team is claiming a new record efficiency of 15.6 percent for a graphene-based solar cell by ditching the silicon all together.  Read More

Looking back on a year filled with scientific accomplishment

The close of 2013 gives us an excellent opportunity, though satiated with holiday feasts, to look back on a year that has been filled with scientific accomplishment. So it's time to get comfortable on your Binary Chair, sip your hot cocoa from a phase-change mug while your Foodini prints out a batch of cookies and reflect on science stories of note from the past year.  Read More

A scanning electron micrograph of the nanostructure of the cathode of a Berkeley Li/S cell...

Batteries. We buy them at the store, use them up, and throw them away without much thought. In reality, however, batteries are remarkably complex electrochemical devices that are continually evolving. The latest example of this comes from the Lawrence Berkeley National Laboratory, where researchers have invented an advanced lithium/sulfur (Li/S) cell that offers a unique combination of energy storage, power, recharge speed, and survivability.  Read More

As a one-atom thick topological insulator, stanene could conduct electricity at full effic...

A team of theoretical physicists from the US Department of Energy’s (DOE) SLAC National Accelerator Laboratory and Stanford University is predicting that stanene, a single layer of tin atoms laid out in a two-dimensional structure, could conduct electricity with one hundred percent efficiency at room temperature. If the findings are confirmed they could pave the way for building computer chips that are faster, consume less power, and won't heat up nearly as much.  Read More

The development of graphene based nanoelectromechanical systems could lead to even slimmer...

A team of engineers from Columbia University has created a nano-mechanical system with the ability to create FM radio signals. In other words, they've built what is effectively the world’s smallest FM radio transmitter.  Read More

A new finding suggests that single graphene sheets retain their outstanding conductive pro...

Scientists at the Helmholtz Zentrum Berlin (HZB) have found that graphene retains its remarkable electrical conductive properties even when it is in close contact with materials like glass and silicon. It could be a key discovery for the development of better thin-film solar cells.  Read More

Stanford scientists have used DNA molecules to assemble high-performance graphene transist...

A team of Stanford researchers has found a way to grow graphene nanoribbons using strands of DNA. This important development could be the key to large-scale production of graphene-based transistors that are orders of magnitude smaller, faster and less power-hungry than current silicon technology.  Read More

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