Scientists increase lithium-sulfur battery lifetime by a factor of 10
'Diamane': Diamond film possible without the pressure
(Phys.org) —Perfect sheets of diamond a few atoms thick appear to be possible even without the big squeeze that makes natural gems.
Liberating devices from their power cords: New structural 'supercaps' take a lickin', keep on workin'
(Phys.org) —Imagine a future in which our electrical gadgets are no longer limited by plugs and external power sources. This intriguing prospect is one of the reasons for the current interest in building ...
Holistic cell design leads to high-performance, long cycle-life lithium-sulfur battery
Researchers at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have demonstrated in the laboratory a lithium-sulfur (Li/S) battery that has more than twice the specific ...
Future solar cells may be made of wood
Laser the size of a virus particle operates at room temperature, defies the diffraction limit of light
A Northwestern University research team has found a way to manufacture single laser devices that are the size of a virus particle and that operate at room temperature. These plasmonic nanolasers could be readily integrated ...
Nanosilicon rapidly splits water without light, heat, or electricity
Zero-dimensional transistor harvests bubble energy wasted during water electrolysis
Nanowires grown on graphene have surprising structure
(Phys.org) —When a team of University of Illinois engineers set out to grow nanowires of a compound semiconductor on top of a sheet of graphene, they did not expect to discover a new paradigm of epitaxy.
Folding batteries increases their areal energy density by up to 14 times
Self-charging battery both generates and stores energy
'Groovy' hologram creates strange state of light at visible and invisible wavelengths
(Phys.org) —Applied physicists at the Harvard School of Engineering and Applied Sciences (SEAS) have demonstrated that they can change the intensity, phase, and polarization of light rays using a hologram-like ...
Rice's silicon oxide memories catch manufacturers' eye
(Phys.org) —Rice University's breakthrough silicon oxide technology for high-density, next-generation computer memory is one step closer to mass production, thanks to a refinement that will allow manufacturers ...
Just add water: How scientists are using silicon to produce hydrogen on demand
(Phys.org)—Super-small particles of silicon react with water to produce hydrogen almost instantaneously, according to University at Buffalo researchers.