(Phys.org) —Rensselaer Polytechnic Institute researchers have identified the mechanism behind a plague of LED light bulbs: a flaw called "efficiency droop" that causes LEDs to lose up to 20 percent of their efficiency as ...
General Physics
Jul 30, 2013
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Luminescent materials are increasingly starring in many aspects of our daily lives. They can be found in traffic lights, computer screens, smartphones and tablets, Euro banknotes, medical devices, and films for X-rays and ...
Energy & Green Tech
Jun 24, 2013
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(Phys.org) —Light-emitting diodes, or LEDs, are the most efficient and environmentally friendly light bulbs on the market. But they come at a higher up-front price than other bulbs, especially the ones with warmer and more ...
Nanomaterials
Jun 13, 2013
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Tungsten is particularly suitable as material for highly stressed parts of the vessel enclosing a hot fusion plasma, it being the metal with the highest melting point. A disadvantage, however, is its brittleness, which under ...
Condensed Matter
May 28, 2013
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(Phys.org) —From the high-resolution glow of flat screen televisions to light bulbs that last for years, light-emitting diodes (LEDs) continue to transform technology. The celebrated efficiency and versatility of LEDs—and ...
Condensed Matter
May 23, 2013
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Some targeted messages based on political orientation are more effective at persuading consumers to recycle, according to a new study in the Journal of Consumer Research.
Social Sciences
May 14, 2013
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A decade ago, large investors in so-called clean technology had a straightforward goal: finance companies that would help eliminate the world's dependence on oil, natural gas and coal.
Energy & Green Tech
May 2, 2013
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(Phys.org) —Two researchers from the Wharton School, University of Pennsylvania and another from Duke University in North Carolina together have found that a person's political ideology might impact his or her decision-making ...
As someone who considers himself an environmentalist, I'd love to get a solar array for my home. But I'm finding that it may not make a lot of sense - at least right now. My wife and I drive fairly fuel-efficient cars. Our ...
Energy & Green Tech
Apr 28, 2013
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(Phys.org)—Researchers at University of California, Santa Barbara, in collaboration with colleagues at the École Polytechnique in France, have conclusively identified Auger recombination as the mechanism that causes light ...
General Physics
Apr 23, 2013
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