Light-emitting diodes (LEDs) release energy in the form of light when electrons and "holes" (electron vacancies) recombine in response to an applied voltage. Over the past few years, scientists have turned their attention ...
Materials Science
May 14, 2020
0
253
Making pure red LEDs from nitride crystals is a goal that has so far frustrated engineers. However, these LEDs are vital for building the next generation of energy-efficient micro-LED displays to follow OLED displays and ...
Optics & Photonics
May 07, 2020
0
170
Researchers at Linköping University, working with colleagues in Great Britain, China and the Czech Republic, have developed a perovskite light-emitting diode (LED) with both high efficiency and long operational stability. ...
Materials Science
Apr 01, 2020
0
9
It is well-known that LEDs and transistors should not be connected in parallel as slight differences in resistance can lead to imbalanced current flow. This effect gets even stronger if the devices heat up as their resistance ...
Materials Science
Jan 15, 2020
0
3
The advent of the white light emitting diode (LED), which consists of a blue LED with a phosphor layer, greatly reduces the energy consumption for lighting. Despite the fast-growing market, white LEDs are still being designed ...
Optics & Photonics
Oct 09, 2019
0
20
New Cornell-led research is pointing the way toward an elusive goal of physicists—high-temperature superfluidity—by exploring excitons in atomically thin semiconductors.
Quantum Physics
Oct 03, 2019
3
121
In two breakthroughs in the realm of photonics, City College of New York graduate researchers are reporting the successful demonstration of an LED (light-emitting diode) based on half-light half-matter quasiparticles in atomically ...
Nanophysics
Sep 27, 2019
2
1874
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 01, 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
