As the number of electronics devices increases around the world, finding effective methods of recycling electronic waste (e-waste) is a growing concern. About 50 million tons of e-waste is generated each year and only 20% ...
Engineering
May 15, 2019
0
11
Colliding a stream of electrons with laser light near an array of tiny silver structures could be the recipe for a new X-ray source that could revolutionize medical imaging and security scanning.
Optics & Photonics
Apr 30, 2019
0
24
The isolation of graphene more than a decade ago transformed the landscape of condensed-matter physics, as the single-atom-thick, two-dimensional material exhibited high crystal and electronic quality to represent a conceptually ...
Imagine being able to hear people whispering in the next room, while the raucous party in your own room is inaudible to the whisperers. Yale researchers have found a way to do just that—make sound flow in one direction—within ...
General Physics
Apr 3, 2019
2
201
A team of physicists at the University of Cologne has, for the first time, seen a particularly exotic behaviour of electrons on an atomic scale. Electrons normally move almost freely through three-dimensional space. However, ...
Quantum Physics
Apr 2, 2019
0
329
Paper-based diagnostic tests are cheap, convenient and biodegradable. However, their use is limited by conventional dyes—which are not bright enough to show trace amounts of analyte, are prone to fading, and can be environmentally ...
Analytical Chemistry
Mar 29, 2019
0
118
Electronic devices such as transistors are getting smaller and will soon hit the limits of conventional performance based on electrical currents.
General Physics
Mar 4, 2019
0
783
Researchers at The University of Manchester in the UK, led by Dr. Artem Mishchenko, Prof Volodya Fal'ko and Prof Andre Geim, have discovered the quantum Hall effect in bulk graphite—a layered crystal consisting of stacked ...
Nanophysics
Feb 25, 2019
0
2233
Optical circuits are set to revolutionize the performance of many devices. Not only are they 10 to 100 times faster than electronic circuits, but they also consume a lot less power. Within these circuits, light waves are ...
Nanophysics
Feb 12, 2019
1
72
Electrons flowing across the boundary between two materials are the foundation of many key technologies, from flash memories to batteries and solar cells. Now researchers have directly observed and clocked these tiny cross-border ...
General Physics
Feb 11, 2019
0
722
