Results 81 - 100 of 726.

Physics - Electroengineering - 22.09.2022
Ultracold circuits
Ultracold circuits
Cooling materials to extremely low temperatures is important for basic physics research as well as for technological applications. By improving a special refrigerator and a low-temperature thermometer, Basel scientists have now managed to cool an electric circuit on a chip down to 220 microkelvin - close to absolute zero.

Physics - Electroengineering - 22.09.2022
Cell Rover: Exploring and augmenting the inner world of the cell
MIT researchers demonstrate an intracellular antenna that's compatible with 3D biological systems and can operate wirelessly inside a living cell. Researchers at the MIT Media Lab have designed a miniature antenna that can operate wirelessly inside of a living cell, opening up possibilities in medical diagnostics and treatment and other scientific processes because of the antenna's potential for monitoring and even directing cellular activity in real-time.

Physics - Electroengineering - 14.09.2022
Interplay of electronics and photonics for next generation quantum devices
Interplay of electronics and photonics for next generation quantum devices
For building quantum computers, making use of both electronics and photonics - technology that works with light - on one and the same chip, is promising. Thanks to silicon technology that we know well from today's electronic devices, quantum devices could be better protected from influences from the outside world.

Electroengineering - Materials Science - 30.08.2022
Green electronics made from wood
Green electronics made from wood
Sustainable electronic components can be made from wood with the help of a novel process that uses a laser to engrave electrically conductive structures on veneers. A research team at Empa and at ETH's Institute for Building Materials has developed a practical and versatile method for making wooden surfaces electrically conductive.

Electroengineering - Environment - 29.08.2022
Print, Recycle, Repeat: Scientists Demonstrate a Biodegradable Printed Circuit
Print, Recycle, Repeat: Scientists Demonstrate a Biodegradable Printed Circuit
Breakthrough could divert wearable devices and other flexible electronics from landfill According to the United Nations, less than a quarter of all U.S. electronic waste gets recycled. In 2021 alone, global e-waste surged at 57.4 million tons , and only 17.4% of that was recycled.

Physics - Electroengineering - 18.08.2022
Magnets in flux
Magnets in flux
Researchers at the Institute for Quantum Matter prove that mechanically manipulating a certain type of metal can change its magnetic properties, ushering in new applications for the rare and underutilized field of piezomagnetism A team of physicists at the Johns Hopkins Institute for Quantum Matter has discovered that they can control a metal's electromagnetic properties by manipulating it mechanically.

Electroengineering - 16.08.2022
Graphene as 'the philosopher's stone': turning waste into gold
Graphene as ’the philosopher’s stone’: turning waste into gold
Throughout history, alchemists believed in the existence of the philosopher's stone: a substance that could turn cheap substances into precious gold. Now scientists from The University of Manchester, Tsinghua University in China and the Chinese Academy of Sciences have shown that graphene can be a kind of philosopher's stone, allowing gold extraction from waste containing only trace amounts of gold (down to billionth of a percent).

Physics - Electroengineering - 11.08.2022
Unexpected quantum effects in natural double-layer graphene
Unexpected quantum effects in natural double-layer graphene
International research team led by Göttingen University controls interaction of charge carriers An international research team led by the University of Göttingen has detected novel quantum effects in high-precision studies of natural double-layer graphene and has interpreted them together with the University of Texas at Dallas using their theoretical work.

Electroengineering - Innovation - 13.07.2022
Future robots could ’see’ using new type of electronic skin
A new form of flexible photodetector could provide future robots with an electronic skin capable of 'seeing' light beyond the range of human vision. A team of engineers from the University of Glasgow are behind the breakthrough development, which involves a newly-developed method of printing microscale semiconductors made from gallium arsenide onto a flexible plastic surface.

Electroengineering - Physics - 22.06.2022
New Ultrathin Capacitor Could Enable Energy-Efficient Microchips
Scientists turn century-old material into a thin film for next-gen memory and logic devices Electron microscope images show the precise atom-by-atom structure of a barium titanate (BaTiO3) thin film sandwiched between layers of strontium ruthenate (SrRuO3) metal to make a tiny capacitor. (Credit: Lane Martin/Berkeley Lab) - By Rachel Berkowitz The silicon-based computer chips that power our modern devices require vast amounts of energy to operate.

Physics - Electroengineering - 17.06.2022
Boosting light power revolutionizes communications and autopilot
Boosting light power revolutionizes communications and autopilot
Scientists have built a compact waveguide amplifier by successfully incorporating rare-earth ions into integrated photonic circuits. The device produces record output power compared to commercial fiber amplifiers, a first in the development of integrated photonics over the last decades. Erbium-doped fiber amplifiers (EDFAs) are devices that can provide gain to the optical signal power in optical fibers, often used in long-distance communication fiber optic cables and fiber-based lasers.

Electroengineering - 09.05.2022
Bright, stable, and easy to recycle lighting
A low-cost and easy-to-manufacture lighting technology can be made with light-emitting electrochemical cells. Such cells are thin-film electronic and ionic devices that generate light after a low voltage is applied. Researchers at the Technical University of Munich (TUM) and the University of Turin have now used extensive data analysis to create first-class electrochemical cells from copper complexes that emit blue and white light.

Health - Electroengineering - 09.05.2022
Multi-Tasking Wearable Continuously Monitors Glucose, Alcohol, and Lactate
Imagine being able to measure your blood sugar levels, know if you've had too much to drink, and track your muscle fatigue during a workout, all in one small device worn on your skin. Engineers at the University of California San Diego have developed a prototype of such a wearable that can continuously monitor several health stats—glucose, alcohol, and lactate levels—simultaneously in real-time.

Physics - Electroengineering - 14.04.2022
Silicon-carbide modulator overcomes decades long ’missing block’
A collaboration with Harvard University has led to the development of a new-generation electro-optic modulator that could stamp out its bulky predecessor through the creation of a smaller, stronger, cooler, faster and cost-effective on-chip system. The new modulator was made possible through the harnessing of a 'difficult' compound - silicon carbide.

Physics - Electroengineering - 14.04.2022
Graphene-hBN breakthrough to spur new LEDs, quantum computing
Study uncovers first method for producing high-quality, wafer-scale, single-layer hexagonal boron nitride In a discovery that could speed research into next-generation electronics and LED devices, a University of Michigan research team has developed the first reliable, scalable method for growing single layers of hexagonal boron nitride on graphene.

Electroengineering - 13.04.2022
Record Amounts of Zero-carbon Electricity Generation and Storage Now Seeking Grid Interconnection
Berkeley Lab-led study shows over 1,300 gigawatts of solar, storage, and wind in interconnection queues - an indicator of a major energy transition underway, even if most proposed projects will not be built New research from Berkeley Lab finds a large number of solar and wind energy projects seeking grid connection.

Physics - Electroengineering - 07.04.2022
Engineered crystals could help computers run on less power
Researchers at the University of California, Berkeley, have created engineered crystal structures that display an unusual physical phenomenon known as negative capacitance. Incorporating this material into advanced silicon transistors could make computers more energy efficient. (UC Berkeley image by Ella Maru Studio) Computers may be growing smaller and more powerful, but they require a great deal of energy to operate.

Physics - Electroengineering - 25.03.2022
Speed Limit of Computers detected
Speed Limit of Computers detected
By Christoph Pelzl One million gigahertz: This is the physical limit of the signal speed in transistors, as a German-Austrian physics team has now discovered. The maximum speed of signal transmission in microchips is about one petahertz (one million gigahertz), which is about 100,000 times faster than current transistors.

Physics - Electroengineering - 24.03.2022
Scientists Uncover Surprising New Clues to Exotic Superconductors' Superpowers
Scientists Uncover Surprising New Clues to Exotic Superconductors’ Superpowers
Study leverages one of the most powerful magnets on Earth to probe a new model of a mysterious metal A research team has uncovered new clues into the exotic behavior of unconventional superconductors - devices that efficiently carry electrical current with zero resistance in ways that defy our previous understanding of physics.

Materials Science - Electroengineering - 14.03.2022
Scientists create new lead-free piezoelectric materials
Scientists create new lead-free piezoelectric materials
Researchers have discovered that gadolinium-doped cerium oxide, a compound they created in the lab, could be a promising alternative to certain piezoelectric materials: it has the same proprieties yet may be 100 times more effective. It's also lead-free, unlike the best piezoelectric materials, which means that it could be employed in bio-compatible medical applications.