Electronics & Semiconductors
Organic electronics—electronics where the active material is carbon-based—are making possible diverse new technologies ranging from sensors for monitoring cannabinoid levels in cannabis plants to lightweight, bendable ...
Jan 16, 2024
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150
Energy & Green Tech
An international research team featuring two Skoltech scientists has experimentally demonstrated that a long-standing explanation for low energy efficiency in lithium-ion batteries does not hold. The researchers explained ...
Sep 21, 2021
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109
Hardware
Attackers have the ability not only to manipulate software, but also to tamper with the hardware. A team from Bochum is devising methods to detect such tampering.
Mar 20, 2023
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79
Electronics & Semiconductors
Recently, there have been a number of electric vehicle (EV) battery fire incidents. Unlike the batteries used in small mobile devices, such as smartphones, the battery pack of an EV is composed of hundreds of battery cells, ...
Dec 4, 2020
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20
Electronics & Semiconductors
Researchers at the University of Konstanz have successfully filmed the operations of extremely fast electronic circuitry in an electron microscope at a bandwidth of tens of terahertz. The study is published in Nature Communications.
Feb 27, 2024
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64
Engineering
Steel and aluminum are key players in supporting economic growth, yet materials joining them remain unexplored due to their fusion zones' brittleness. A new 3D printing method's fix may be a step toward a steel-aluminum hybrid ...
Nov 14, 2023
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22
Energy & Green Tech
As lithium-ion batteries have become a ubiquitous part of our lives through their use in consumer electronics, automobiles and electricity storage facilities, researchers have been working to improve their power, efficiency ...
Jan 26, 2023
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46
Energy & Green Tech
An international team of researchers has devised a method to detect the degradation mechanism of lithium-ion batteries.
Sep 9, 2021
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54
Hi Tech & Innovation
Nanoengineers have created a quasicrystal—a scientifically intriguing and technologically promising material structure—from nanoparticles using DNA, the molecule that encodes life.
Nov 3, 2023
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5
Electronics & Semiconductors
Damage from adding electrical contacts to sensitive semiconductors can be mitigated using a buffer layer and optimized deposition.
Nov 30, 2021
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33
An electron microscope is a type of microscope that uses a particle beam of electrons to illuminate a specimen and create a highly-magnified image. Electron microscopes have much greater resolving power than light microscopes that use electromagnetic radiation and can obtain much higher magnifications of up to 2 million times, while the best light microscopes are limited to magnifications of 2000 times. Both electron and light microscopes have resolution limitations, imposed by the wavelength of the radiation they use. The greater resolution and magnification of the electron microscope is because the wavelength of an electron; its de Broglie wavelength is much smaller than that of a photon of visible light.
The electron microscope uses electrostatic and electromagnetic lenses in forming the image by controlling the electron beam to focus it at a specific plane relative to the specimen. This manner is similar to how a light microscope uses glass lenses to focus light on or through a specimen to form an image.
This text uses material from Wikipedia, licensed under CC BY-SA
