When atomically thin semiconductors are combined together in a Lego style, they emit light at a lower voltage potentially leading to low energy consumption devices.
Nanophysics
Aug 1, 2019
0
541
Scientists at LiU working with colleagues from China have shown how to achieve efficient perovskite light-emitting diodes (LEDs). In an article published in Nature Communications, they provide guidelines on fabricating high-quality ...
Materials Science
Jul 16, 2019
0
31
Developing synthetic materials that are as dynamic as those found in nature, with reversibly changing properties and which could be used in manufacturing, recycling and other applications, is a strong focus for scientists.
Materials Science
Jul 15, 2019
0
38
Volkmar Dierolf and an international team demonstrate the possibility of tuning the color of a GaN LED by changing the time sequence at which the operation current is provided to the device.
Optics & Photonics
Apr 29, 2019
3
170
Efficient near-infrared (NIR) light-emitting diodes of perovskite have been produced in a laboratory at Linköping University. The external quantum efficiency is 21.6 percent, which is a record. The results have been published ...
Optics & Photonics
Mar 29, 2019
2
299
Nanowire gurus at the National Institute of Standards and Technology (NIST) have made ultraviolet light-emitting diodes (LEDs) that, thanks to a special type of shell, produce five times higher light intensity than do comparable ...
Nanomaterials
Mar 21, 2019
0
70
People who believe light-emitting diodes, or LEDS, are just an efficient upgrade to the ordinary electric light bulb are stuck in their thinking, suggest Sandia National Laboratories researcher Jeff Tsao and colleagues from ...
Optics & Photonics
Jan 10, 2019
0
51
Researchers have designed a new LED-based train headlight that uses a tenth of the energy required for headlights using conventional light sources. If operated 8 hours every day, the electricity savings of the new design ...
Optics & Photonics
Feb 13, 2018
14
269
High-power white LEDs face the same problem that Michigan Stadium faces on game day—too many people in too small of a space. Of course, there are no people inside of an LED. But there are many electrons that need to avoid ...
Nanophysics
Nov 28, 2017
0
221
Light-emitting diodes—or LEDs, as they are commonly known—have been slowly replacing incandescent light bulbs in applications ranging from car taillights to indicators on electronics since their invention in the 1960s.
Nanophysics
Nov 21, 2017
0
19
