(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.
May 24, 2013
4.6 / 5 (5)
0
|
A team of researchers from Germany, Italy, and the USA have shown that observations of stellar visibility by citizen scientists accurately measure the brightness of the night sky. The researchers published their results Thursday ...
May 21, 2013
4.9 / 5 (46)
0
(Phys.org) —Quantum dot LEDs (QLEDs) are a promising technology for creating large-area displays that could have applications for TVs, cell phones, and digital cameras. So far, however, the highest efficiencies ...
May 14, 2013
4.8 / 5 (30)
1
|
(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 ...
May 09, 2013
5 / 5 (1)
0
Thermoelectric materials can be used to turn waste heat into electricity or to provide refrigeration without any liquid coolants, and a research team from the University of Michigan has found a way to nearly double the efficiency ...
May 05, 2013
4.5 / 5 (13)
2
|
(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 ...
May 03, 2013
4.8 / 5 (13)
18
|
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 ...
Apr 28, 2013
4 / 5 (5)
1
Streetlights illuminate the night, shining upon roadways and sidewalks across the world, but these ubiquitous elements of the urban environment are notoriously inefficient and major contributors to light ...
Apr 24, 2013
4.7 / 5 (26)
12
|
(Phys.org) —Using an ink containing tiny graphene flakes, scientists have inkjet-printed graphene patterns that can be used for printing finely detailed, highly conductive electrodes. Although inkjet-printed ...
Apr 24, 2013
4.6 / 5 (14)
1
|
At LIGHTFAIR International 2013 today, Thermal Solution Resources, LLC (TSR) introduced the world's smallest wireless LED lamp – the intelliSSL MR16 – which can be controlled remotely from iOS, Android ...
Apr 24, 2013
not rated yet
0
(Phys.org) —Researchers from North Carolina State University have solved a long-standing materials science problem, making it possible to create new semiconductor devices using zinc oxide (ZnO) – including efficient ultraviolet ...
Apr 23, 2013
5 / 5 (5)
1
|
(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 ...
Apr 23, 2013
5 / 5 (44)
3
|
Dutch electronics giant Philips announced Thursday first quarter profits that were down 12 percent from the same period a year earlier, and confirmed that it expected only "modest" growth in the first half of 2013.
Apr 22, 2013
not rated yet
0
OLEDs – thin, light-emitting surfaces – are regarded as the light sources of the future. White OLEDs consist of stacked, ultra-thin layers, each emitting its own light color, all together resulting in ...
Apr 15, 2013
5 / 5 (1)
0
