Adding transparency to graphene paper improves supercapacitor capacitance
Best of Last Week – POLARBEAR detects oldest light, PhotoMath solves equations and oldest human DNA found
First results from LUX dark matter detector rule out some candidates
In its first three months of operation, the Large Underground Xenon (LUX) experiment has proven itself to be the most sensitive dark matter detector in the world, scientists with the experiment announced ...
World's best thermometer made from light
(Phys.org) —University of Adelaide physics researchers have produced the world's most sensitive thermometer – three times more precise than the best thermometers in existence.
Harvesting hydrogen fuel from the Sun using Earth-abundant materials
The race is on to optimize solar energy's performance. More efficient silicon photovoltaic panels, dye-sensitized solar cells, concentrated cells and thermodynamic solar plants all pursue the same goal: to ...
Graphene / nanotube hybrid benefits flexible solar cells
(Phys.org) —Rice University scientists have invented a novel cathode that may make cheap, flexible dye-sensitized solar cells practical.
Light-activated medical implants: Team develops light-guiding hydrogel for cell-based sensing
Researchers find dogs sensitive to small variations in Earth's magnetic field
Researchers develop new type of fluorescent camera for blood diagnostics, brain mapping
(Phys.org) —Fluorescence imaging is the most widely used method for analyzing the molecular composition of biological specimens. Target molecules, when they are present, can be "tagged" with a fluorescent ...
3D graphene: Solar cells' new platinum?
One of the most promising types of solar cells has a few drawbacks. A scientist at Michigan Technological University may have overcome one of them.
Using light to identify chiral molecules for pharmaceuticals
(Phys.org) —A combination of nanotechnology and a unique twisting property of light could lead to new methods for ensuring the purity and safety of pharmaceuticals.
Scientists make first direct images of topological insulator's edge currents
(Phys.org) —Researchers at a SLAC/Stanford institute have made the first direct images of electrical currents flowing along the edges of a topological insulator – a recently discovered state of matter ...
Getting two for one: 'Bonus' electrons in germanium nanocrystals can lead to better solar cells
Researchers from FOM, the University of Amsterdam, the Delft University of Technology and the University of the Algarve have discovered that when light hits germanium nanocrystals, the crystals produce 'bonus ...
Privacy groups quit US talks on facial recognition tech
Nine US privacy groups have dropped out of talks on voluntary standards for facial recognition technology, after failing to agree on a code on how it could be deployed.