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Archive for the ‘electronics’ category: Page 2

Oct 6, 2024

Stunning photos of a vast e-waste dumping ground — and those who make a living off it

Posted by in categories: electronics, sustainability

Electronics have tons of gold and copper so we need to consider a global recovery and recycling electronics.


Three photojournalists have created an in-depth report on electronic waste — its negative and… positive… consequences.

Sep 24, 2024

Physicists use quantum correlations of photon pairs to hide images from standard cameras

Posted by in categories: electronics, quantum physics

What if you could hide an image in plain sight—so well that even the most advanced cameras couldn’t detect it? Imagine encoding visual information using the properties of quantum optics, rendering it invisible to normal imaging technology.

Sep 18, 2024

Newly developed OLED could enable compact, lightweight night vision

Posted by in category: electronics

A new type of OLED (organic light emitting diode) could replace bulky night vision goggles with lightweight glasses, making them cheaper and more practical for prolonged use, according to University of Michigan researchers.

Sep 15, 2024

Device malfunctions from continuous current lead to discovery that can improve design of microelectronic devices

Posted by in categories: computing, electronics

A new study led by researchers at the University of Minnesota Twin Cities is providing new insights into how next-generation electronics, including memory components in computers, break down or degrade over time. Understanding the reasons for degradation could help improve efficiency of data storage solutions.

Sep 14, 2024

New discovery aims to improve the design of microelectronic devices

Posted by in categories: computing, electronics

A new study led by researchers at the University of Minnesota Twin Cities is providing new insights into how next-generation electronics, including memory components in computers, breakdown or degrade over time. Understanding the reasons for degradation could help improve efficiency of data storage solutions.

The research is published in ACS Nano (“Uncovering Atomic Migrations Behind Magnetic Tunnel Junction Breakdown”).

For the first time, researchers were able to observe a “pinhole” within a device and observe how it degrades in real-time. (Image: Mkhoyan Lab, University of Minnesota)

Sep 10, 2024

Electrically modulated nanoantenna points the way to faster computer chips

Posted by in categories: computing, electronics

Today’s computers reach their physical limits when it comes to speed. Semiconductor components usually operate at a maximum usable frequency of a few gigahertz – which corresponds to several billion computing operations per second. As a result, modern systems rely on several chips to divide up the computing tasks because the speed of the individual chips cannot be increased any further. However, if light (photons) were used instead of electricity (electrons) in computer chips, they could be up to 1,000 times faster.

Plasmonic resonators, also known as “antennas for light”, are a promising way of achieving this leap in speed. These are nanometre-sized metal structures in which light and electrons interact. Depending on their geometry, they can interact with different light frequencies.

“The challenge is that plasmonic resonators cannot yet be effectively modulated, as is the case with transistors in conventional electronics. This hinders the development of fast light-based switches,” says Dr. Thorsten Feichtner, physicist at Julius-Maximilians-Universität (JMU) Würzburg in Bavaria, Germany.

Sep 3, 2024

A sensory pen that can read Braille could improve literacy among the visually impaired

Posted by in category: electronics

A pen that can transform Braille into English text has been developed by experts at the University of Bristol.

Braille literacy is frequently reported as being in decline. This is despite visually impaired people often expressing a desire to learn it, and Braille literacy being a highly valued skill by those who are capable. This is often attributed to the lack of available learning resources, particularly away from large urban centers.

The handheld device, which includes a one-centimeter sensor with 19 channels programmed to read Braille, has demonstrated high accuracy in early trials.

Aug 30, 2024

Researchers present new diagnostic tool for laser-plasma accelerator using metal foil as 3D scanner

Posted by in categories: electronics, particle physics

Laser-plasma accelerators take up less space than conventional facilities, which are sometimes kilometers long. Such compact particle sources can accelerate electron bunches efficiently, enabling X-ray lasers that fit in the basement of a university institute.

Aug 27, 2024

Sound drives ‘quantum jumps’ between electron orbits

Posted by in categories: electronics, quantum physics

Cornell University researchers have demonstrated that acoustic sound waves can be used to control the motion of an electron as it orbits a lattice defect in a diamond, a technique that can potentially improve the sensitivity of quantum sensors and be used in other quantum devices.

Aug 23, 2024

Printable, stretchable metal-vapor-desorption layers for high-fidelity patterning in soft, freeform electronics

Posted by in category: electronics

Existing patterning methods for thin metal films rely on prefabricated rigid masks incompatible with soft substrates. Here, the authors report printable and stretchable metal-vapor-desorption layers that facilitate high-fidelity patterning, enabling circuits and devices on 3D curvilinear and stretchable substrates.

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