(PhysOrg.com) -- Researchers from the National Renewable Energy Laboratory (NREL) have reported the first solar cell that produces a photocurrent that has an external quantum efficiency greater than 100 percent when photoexcited ...
General Physics
Dec 15, 2011
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A research group at the NIMS International Center for Materials Nanoarchitectonics (MANA) has proved that the electrical resistance of a metal single atomic layer on a silicon surface becomes zero by superconductivity.
Superconductivity
Nov 24, 2011
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Researchers of the Opto-electronic Materials section of Delft University of Technology in the Netherlands and Toyota Europe have demonstrated that several mobile electrons can be produced by the absorption of a single light ...
Nanophysics
Oct 14, 2011
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Researchers of the Chemical Engineering department and the Kavli institute of Delft University of Technology in the Netherlands have demonstrated that electrons can move freely in layers of linked semiconductor nanoparticles ...
Nanomaterials
Sep 26, 2011
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Fitting the screens of electronic devices, such as televisions and smartphones, with a new display technology called 'organic light-emitting diodes' (OLEDs) will reduce their energy consumption, but such screens currently ...
Materials Science
Aug 22, 2011
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(PhysOrg.com) -- Organic light-emitting diodes (OLEDs) are seen as a promising replacement for the liquid-crystal displays (LCDs) used in many flat-screen televisions because they are cheaper to mass-produce. Zhikuan Chen ...
Optics & Photonics
Aug 9, 2011
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To come up with a way to do something 1,000 times faster than it had been done in the past, you have to count on some serendipity -- not to mention hard work, collaboration and good timing.
Materials Science
Jul 12, 2011
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An IBM supercomputer is the most energy efficient supercomputer in the world, according to the latest Supercomputing 'Green500 List' announced by Green500.org. A prototype of IBM's next generation Blue Gene/Q supercomputer ...
Hardware
Jul 1, 2011
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By swapping one superconducting material for another, researchers at the National Institute of Standards and Technology (NIST) have found a practical way to boost the efficiency of the world's fastest single-photon detector, ...
General Physics
Jun 30, 2011
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(PhysOrg.com) -- For the past few years, researchers have been using quantum dots to increase the light absorption and overall efficiency of solar cells. Now, researchers have taken a step further, demonstrating that quantum ...
