NASA's Mars rover Curiosity acquired this image using its Mars Hand Lens Imager (MAHLI), located on the turret at the end of the rover's robotic arm, on November 3, 2020, Sol 2931 of the Mars Science Laboratory Mission, at ...
Space Exploration
Nov 6, 2020
1
179
Studying the reproductive cycle of two coral species from the Indo-Pacific Ocean over the course of three months, researchers found that light pollution caused delayed gametogenesis and unsynchronized gamete release. To ...
Ecology
Nov 5, 2020
0
39
Light-emitting diodes, or LEDs, are nearly ubiquitous in modern life, providing the brightness in phone displays, televisions, and lights. A new form of LEDs, made of a class of materials called halide perovskites, promises ...
Materials Science
Aug 19, 2020
1
147
A new design for light-emitting diodes (LEDs) developed by a team including scientists at the National Institute of Standards and Technology (NIST) may hold the key to overcoming a long-standing limitation in the light sources' ...
Nanophysics
Aug 14, 2020
0
2853
Researchers have solved a major problem for optical wireless communications—the process by which light carries information between cell phones and other devices. Light-emitting diodes (LEDs) pulse their light in a coded ...
Optics & Photonics
Jul 30, 2020
4
31
Introducing the newly designed 'meta-grid' of nanoparticles into the epoxy casing of light-emitting diodes (LEDs) offers a substantial improvement of their light output, besides increasing lifetime, according to the scientists ...
Optics & Photonics
Jul 29, 2020
0
11
For disinfection purposes, a compact system can be equipped with UV LEDs to eliminate germs on critical surfaces such as mobile phones. It can also be assembled with LEDs providing the optimum emission spectrum for polymer ...
Optics & Photonics
Jun 30, 2020
0
2
Picture 500 million cars stacked in rows. That's how much carbon—about 1,000 petagrams, or one billion metric tons—is locked away in Arctic permafrost.
Earth Sciences
Jun 15, 2020
1
764
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 7, 2020
0
170
