(Phys.org) —Scientists say "Li-Fi," Wi-fi connectivity from a light bulb, is making new advancements. Chi Nan, information technology professor at Shanghai's Fudan University, at work with a research team of scientists ...
One problem in developing more efficient organic LED light bulbs and displays for TVs and phones is that much of the light is polarized in one direction and thus trapped within the light-emitting diode, or LED. University ...
Materials Science
Sep 29, 2013
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By inserting platinum atoms into an organic semiconductor, University of Utah physicists were able to "tune" the plastic-like polymer to emit light of different colors – a step toward more efficient, less expensive and ...
Condensed Matter
Sep 13, 2013
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The highly inefficient incandescent light bulb is now a thing of the past, banned from European supermarket shelves in favour of more efficient lighting. The ban is part of the EU's strategy to reduce overall energy consumption ...
Energy & Green Tech
Sep 3, 2013
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Enhancing and manipulating the light emission of organic molecules is at heart of many important technological and scientific advances, including in the fields of organic light emitting devices, bio-imaging, bio-molecular ...
Optics & Photonics
Aug 6, 2013
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(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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(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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