A quasiparticle that forms in semiconductors can now be moved around at room temperature, a University of Michigan-led study has shown. The finding could cool down computers, enabling faster speeds and higher efficiencies, ...
Optics & Photonics
Feb 15, 2022
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400
Researchers from the Okinawa Institute of Science and Technology Graduate University (OIST) have developed blue LEDs based on a material called metal halide perovskite, that, for the first time, uses asymmetrical bridges ...
Materials Science
Jan 25, 2022
0
66
Sure, you could attach two screens with a hinge and call a cell phone "foldable," but what if you could roll it up and put it in your wallet? Or stretch it around your wrist to wear it as a watch?
Materials Science
Oct 22, 2021
0
75
Planar perovskite light-emitting diodes (LEDs) are high-performance and cost-effective electroluminescence devices that are ideal for large-area display and lighting applications. By exploring the emission layers with high ...
Tiny light-emitting devices that can create all the colors in the rainbow are essential for the next generation of phones and screens.
Optics & Photonics
Sep 27, 2021
0
35
Global light pollution has increased by at least 49% over 25 years, new research shows.
Environment
Sep 14, 2021
1
17
Life on Earth has evolved alongside predictable cycles of day and night. But this pattern has become increasingly blurred. Between 2012 and 2016, satellite measurements revealed that the global area polluted by artificial ...
Plants & Animals
Aug 26, 2021
0
386
Metal-halide perovskites are a new class of semiconductor materials for LED display and solar-energy harvesting. However, the best-performing devices are often made from lead (Pb)-based perovskites, whose toxicity may cause ...
Materials Science
Aug 06, 2021
0
119
LEDs are commonly used for sterilization—you may be using one to clean your electric toothbrush, for example. In the continued effort to combat the coronavirus pandemic, LEDs can also help inactivate SARS-CoV-2.
Optics & Photonics
Aug 04, 2021
0
56
"The best laid plans of mice and men often go awry"—this famous paraphrase of Scottish poet Robert Burns sometimes sums up human ingenuity. That is exactly what happened when a county in Washington State decided to replace ...
Environment
Jul 09, 2021
9
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