LEDs: Better red makes brighter white
Chemists at Ludwig-Maximilians-Universitaet (LMU) in Munich have developed a novel type of red phosphor material, which significantly enhances the performance of white-emitting LEDs.
Chemists at Ludwig-Maximilians-Universitaet (LMU) in Munich have developed a novel type of red phosphor material, which significantly enhances the performance of white-emitting LEDs.
Materials Science
Jun 23, 2014
1
78
The most common kind of light bulb in the United States—the incandescent—is only about 5 percent efficient. The phosphorescent organic light-emitting diode, on the other hand, makes light out of 100 percent of the electricity ...
Energy & Green Tech
Jun 20, 2014
5
0
For years, companies have been adding whiteners to laundry detergent, paints, plastics, paper and fabrics to make whites look "whiter than white," but now, with a switch away from incandescent and fluorescent lighting, different ...
Other
Apr 18, 2014
12
0
Not too long ago, I wrote a review of several 60 watt-equivalent bulbs that use light-emitting diodes. I touched on a few ideas about the future of light bulbs that prompted some conversation both online and in the office.
Energy & Green Tech
Apr 2, 2014
20
1
Want to save some money and help the planet at the same time? Then take a look at some of the gadgets and appliances in your house. By turning off, adjusting or swapping out some of the devices in your house, you can potentially ...
Energy & Green Tech
Mar 26, 2014
0
0
LEDs are durable and save energy. Now researchers have found a way to make LED lamps even more compact while supplying more light than commercially available models. The key to success: transistors made of the semiconductor ...
Energy & Green Tech
Mar 4, 2014
0
0
As the world moves away from incandescent light bulbs, light-emitting diodes (LEDs) are growing in popularity. They use significantly less energy and have far longer lifetimes than do the traditional incandescent bulbs, which ...
General Physics
Feb 27, 2014
0
8
Catatumbo in western Venezuela has made it into the Guinness record books for being the place with the most lightning, some 20,000 flashes per hour.
Earth Sciences
Jan 29, 2014
0
0
The average amount of electricity consumed in U.S. homes has fallen to levels last seen more than a decade ago, back when the smartest device in people's pockets was a Palm pilot and anyone talking about a tablet was probably ...
Energy & Green Tech
Dec 30, 2013
3
0
(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 ...