By determining simple guidelines, researchers at UC Santa Barbara's Solid State Lighting & Energy Center (SSLEC) have made it possible to optimize phosphors –– a key component in white LED lighting –– allowing for ...
General Physics
Oct 31, 2013
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(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 ...
Anyone who has tried to make a cell phone call from a crowded football stadium has had a taste of what engineers call spectrum crunch.
Telecom
Oct 3, 2013
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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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(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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(Phys.org) —Minuscule crystals that glow different colors may be the missing ingredient for white LED lighting that illuminates homes and offices as effectively as natural sunlight.
General Physics
May 24, 2013
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(Phys.org) —Tomatoes can contain more vitamin C if they are exposed to extra light from LED lamps while growing on the plant. This has been proven by research by Wageningen UR Greenhouse Horticulture in collaboration with ...
Biotechnology
May 9, 2013
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(Phys.org) —A new semiconductor device capable of emitting two distinct colours has been created by a group of researchers in the US, potentially opening up the possibility of using light emitting diodes (LEDs) universally ...
Electronics & Semiconductors
May 3, 2013
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