Engineering
Theorists at The University of Texas at Dallas, along with colleagues in Germany, have for the first time observed a rare phenomenon called the quantum anomalous Hall effect in a very simple material. Previous experiments ...
Nov 05, 2021
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Electronics & Semiconductors
Imperial College London researchers have improved an electronic sensor that can be used for fast detection of infectious diseases like COVID-19.
Nov 02, 2021
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Engineering
More than 90 years ago, physicist Eugene Wigner predicted that at low densities and cold temperatures, electrons that usually zip through materials would freeze into place, forming an electron ice, or what has been dubbed ...
Oct 05, 2021
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Electronics & Semiconductors
Long, narrow graphene nanoribbons (GNRs) with smooth edges, sizable bandgap and high mobility are highly desirable for electronic and optoelectronic applications. However, efficiently preparing such GNRs is difficult. Recently, ...
Sep 20, 2021
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Engineering
Modern devices that use lithium ion batteries, like smartphones and electric cars, seem pretty robust. But try to use one in extreme heat or cold, and you'll see how susceptible they are to malfunctions and low performance ...
Aug 16, 2021
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61
Electronics & Semiconductors
A research team led by Prof. Liu Zhiqiang from the Institute of Semiconductors of the Chinese Academy of Sciences, in cooperation with the team led by Prof. Gao Peng from Peking University and the team led by Prof. Liu Zhongfan ...
Aug 02, 2021
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Electronics & Semiconductors
Over the past decade or so, the semimetal graphene has attracted substantial interest among electronics engineers due to its many advantageous qualities and characteristics. In fact, its high electron mobility, flexibility ...
Apr 14, 2021 feature
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Electronics & Semiconductors
Over the past years, global data traffic has experienced a boom, with over 12.5 billion connected devices all over the world. The current world-wide deployment of the 5G telecommunications standard is triggering the need ...
Feb 16, 2021
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Electronics & Semiconductors
Spintronics (or spin transport electronics) is a fairly new research field specialized in the development of devices that use the spin of electrons to store and process information. These devices could be a favorable alternative ...
Sep 10, 2020 feature
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Electronics & Semiconductors
At the heart of any electronic device is a cold, hard computer chip, covered in a miniature city of transistors and other semiconducting elements. Because computer chips are rigid, the electronic devices that they power, ...
Feb 06, 2020
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Graphene is a one-atom-thick planar sheet of sp2-bonded carbon atoms that are densely packed in a honeycomb crystal lattice. It can be viewed as an atomic-scale chicken wire made of carbon atoms and their bonds. The name comes from GRAPHITE + -ENE; graphite itself consists of many graphene sheets stacked together.
The carbon-carbon bond length in graphene is approximately 0.142 nm. Graphene is the basic structural element of some carbon allotropes including graphite, carbon nanotubes and fullerenes. It can also be considered as an infinitely large aromatic molecule, the limiting case of the family of flat polycyclic aromatic hydrocarbons called graphenes.
Measurements have shown that graphene has a breaking strength 200 times greater than steel, making it the strongest material ever tested.
This text uses material from Wikipedia, licensed under CC BY-SA
