US regulators give Wi-Fi more breathing space
US telecom regulators have moved to expand the capacities for Wi-Fi Internet access with more room on the broadcast spectrum and "more flexible" rules.
Feb 21, 2013
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Feb 21, 2013
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Hot electrons do the impossible in catalytic chemistry
(Phys.org)—From petroleum refining to food processing, the vast majority of commercial chemical applications involve catalysts to control the rate of chemical reactions. Anything that can increase the efficiency ...
Dec 17, 2012
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Recyclable printed circuit boards
The National Physical Laboratory (NPL), along with partners In2Tec Ltd (UK) and Gwent Electronic Materials Ltd, have developed a printed circuit board (PCB) whose components can be easily separated by immersion in hot water. ...
Jun 01, 2012
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Discovery of a 'dark state' could increase maximum theoretical efficiency of solar cells from 31 to 44 percent
The efficiency of conventional solar cells could be significantly increased, according to new research on the mechanisms of solar energy conversion led by chemist Xiaoyang Zhu at The University of Texas at Austin.
Dec 15, 2011
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Laser heating -- new light cast on electrons heated to several billion degrees
A new class of high power lasers can effectively accelerate particles like electrons and ions with very intense, short laser pulses. This has attracted the interest of researchers around the globe, working ...
Nov 21, 2011
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Plasmonic device converts light into electricity
(PhysOrg.com) -- While the most common device for converting light into electricity may be photovoltaic (PV) solar cells, a variety of other devices can perform the same light-to-electricity conversion, such ...
Nov 09, 2011
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Measurement of 'hot' electrons could have solar energy payoff
(PhysOrg.com) -- Basic scientific curiosity paid off in unexpected ways when Rice University researchers investigating the fundamental physics of nanomaterials discovered a new technology that could dramatically ...
May 05, 2011
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Balls, blocks, cars among high-tech toys at CES
Balls, blocks and miniature cars with a high-tech twist were among the toys at the Consumer Electronics Show -- although at prices only adults who are still children at heart may be able to afford.
Jan 10, 2011
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Highly efficient solar cells could result from quantum dot research
Conventional solar cell efficiency could be increased from the current limit of 30 percent to more than 60 percent, suggests new research on semiconductor nanocrystals, or quantum dots, led by chemist Xiaoyang ...
Jun 17, 2010
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Hot Electrons Could Double Solar Cell Power Efficiency
Scientists have experimentally verified a theory suggesting that hot electrons could double the output of solar cells. The researchers, from Boston College, have built solar cells that successfully use hot ...
Dec 18, 2009
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Elusive 'hot' electrons captured in ultra-thin solar cells
Boston College researchers have observed the "hot electron" effect in a solar cell for the first time and successfully harvested the elusive charges using ultra-thin solar cells, opening a potential avenue to improved solar ...
Dec 11, 2009
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