Materials Science

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Physics - Materials Science - 05.05.2021
A material-keyboard made of graphene
A material-keyboard made of graphene
Researchers at ETH Zurich have succeeded in turning specially prepared graphene flakes either into insulators or into superconductors by applying an electric voltage. This technique even works locally, meaning that in the same graphene flake regions with completely different physical properties can be realized side by side.

Materials Science - 05.05.2021
Africa's oldest human burial site uncovered
Africa’s oldest human burial site uncovered
The discovery of the earliest human burial site yet found in Africa, by an international team including several CNRS researchers 1 , has just been announced in the journal Nature . At Panga ya Saidi, in Kenya, north of Mombasa, the body of a three-year-old, dubbed Mtoto (Swahili for 'child') by the researchers, was deposited and buried in an excavated pit approximately 78,000 years ago.

Physics - Materials Science - 27.04.2021
Ion Beams Mean a Quantum Leap for Color-Center Qubits
Ion Beams Mean a Quantum Leap for Color-Center Qubits
A new way to form self-aligned 'color centers' promises scalability to over 10,000 qubits for applications in quantum sensing and quantum computing. -By Joe Chew Achieving the immense promise of quantum computing requires new developments at every level, including the computing hardware itself. A Lawrence Berkeley National Laboratory (Berkeley Lab)-led international team of researchers has discovered a way to use ion beams to create long strings of "color center" qubits in diamond.

Physics - Materials Science - 26.04.2021
Advances for the application of nanofluids to energy storage systems
Advances for the application of nanofluids to energy storage systems
Energy storage systems are key technologies for achieving the transition to renewable energies, which can become more viable if the energy efficiency of the former improves. At present, more than 70% of concentrated solar power systems have integrated thermal energy storage (TES). Such power plants reached an installed capacity of 4.

Materials Science - 22.04.2021
Inspired by nature, the research to develop a new load-bearing material
Inspired by nature, the research to develop a new load-bearing material
Engineers have developed a material that mimics human cartilage - the body's shock absorbing and lubrication system, and it could herald the development of a new generation of lightweight bearings. Cartilage is a soft fibrous tissue found around joints which provides protection from the compressive loading generated by walking, running or lifting.

Physics - Materials Science - 22.04.2021
Uniquely sharp X-ray view
Researchers at the Paul Scherrer Institute PSI have succeeded for the first time in looking inside materials using the method of transient grating spectroscopy with ultrafast X-rays at SwissFEL. The experiment at PSI is a milestone in observing processes in the world of atoms. The researchers are publishing their research results today .

Materials Science - Chemistry - 20.04.2021
Perovskite solar cells exceed 25% power-conversion efficiency
Perovskite solar cells exceed 25% power-conversion efficiency
Physical chemists and chemical engineers led by EPFL have used a chemical tweak to push the power-conversion efficiency and operational stability of perovskite solar cells to 25.6% and at least 450 hours respectively. Perovskites are hybrid compounds that can be made from metal halides and organic constituents.

Physics - Materials Science - 08.04.2021
The Spintronics Technology Revolution Could Be Just a Hopfion Away
Pioneering study co-led by Berkeley Lab has significance for next-gen information technologies Artist's drawing of characteristic 3D spin texture of a magnetic hopfion. Berkeley Lab scientists have created and observed 3D hopfions. The discovery could advance spintronics memory devices.

Materials Science - Chemistry - 07.04.2021
Designing Selective Membranes for Batteries Using a Drug Discovery Toolbox
By binding specific ions in specially designed cages within its pores, a new membrane could enable more efficient flows in energy storage devices Illustration of caged lithium ions in a new polymer membrane for lithium batteries. Scientists at Berkeley Lab's Molecular Foundry used a drug-discovery toolbox to design the selective membranes.

Physics - Materials Science - 05.04.2021
Artificial photosynthesis devices that improve themselves with use
Artificial photosynthesis devices that improve themselves with use
In a finding that could help make artificial photosynthesis a practical method for producing hydrogen fuel, researchers have discovered why a water-splitting device made with cheap and abundant materials unexpectedly becomes more efficient during use. The new understanding of this mechanism could radically accelerate the commercialization of technologies that turn light and water into carbon-free hydrogen fuel, the researchers say.

Materials Science - Economics / Business - 02.04.2021

Physics - Materials Science - 01.04.2021
Computational Tool for Materials Physics Growing in Popularity
A new piece of software developed at Caltech makes it easier to study the behavior of electrons in materials-even materials that have been predicted but do not yet exist. The software, called Perturbo, is gaining traction among researchers. Perturbo calculates at a quantum level how electrons interact and move within a material, providing useful microscopic details about so-called electron dynamics.

Physics - Materials Science - 31.03.2021
Scientists uncover a process that stands in the way of making quantum dots brighter
The results have important implications for today's TV and display screens and for future technologies where light takes the place of electrons and fluids. Bright semiconductor nanocrystals known as quantum dots give QLED TV screens their vibrant colors. But attempts to increase the intensity of that light generate heat instead, reducing the dots' light-producing efficiency.

Materials Science - Chemistry - 30.03.2021
Research given significant boost to develop lithium-rich battery cathodes
A team of scientists, including those based at the University of Oxford as part of the Faraday Institution CATMAT project, researching next-generation cathode materials have made a significant breakthrough in understanding oxygen-redox processes involved in lithium-rich cathode materials. The paper proposes strategies that offer potential routes to increase the energy density of lithium-ion batteries.

Physics - Materials Science - 29.03.2021
New Pathway to Harnessing the Sun for a Clean Energy Future
New Pathway to Harnessing the Sun for a Clean Energy Future
Berkeley Lab co-led collaboration with DESY and TU Freiberg brings us a step closer to more efficient photovoltaics and solar fuel systems In the past 50 years, scientists have made great advances in photovoltaic technologies that convert sunlight into electricity, and artificial photosynthesis devices that convert sunlight and water into carbon-free fuels.

Materials Science - Physics - 29.03.2021
Tires turned into graphene that makes stronger concrete
Tires turned into graphene that makes stronger concrete
Rice lab's optimized flash process could reduce carbon emissions This could be where the rubber truly hits the road. Rice University scientists have optimized a process to convert waste from rubber tires into graphene that can, in turn, be used to strengthen concrete. The environmental benefits of adding graphene to concrete are clear, chemist James Tour said.

Physics - Materials Science - 28.03.2021
Electromagnetic Fields of Nanostructures Visualized in 3D for the First Time
Electromagnetic Fields of Nanostructures Visualized in 3D for the First Time
Researchers at TU Graz and the University of Graz, together with experts from France, have succeeded in imaging surface phonons in 3D for the first time. This success could accelerate the development of new, efficient nanotechnologies. Whether for microscopy, data storage or sensor technology, many advanced technological applications that require specific functions rely on the structure of the electromagnetic field near the surfaces of materials.

Chemistry - Materials Science - 25.03.2021
First closeups of how a lithium-metal electrode ages
Scientists have documented a process that makes these next-gen batteries lose charge - and eventually some of their capacity for storing energy - even when a device is turned off. The same process that drains the battery of your cell phone even when it's turned off is even more of a problem for lithium-metal batteries, which are being developed for the next generation of smaller, lighter electronic devices, far-ranging electric vehicles and other uses.

Materials Science - 23.03.2021
Knitting roads
Knitting roads
Empa scientists are investigating how roads could be reinforced with simple means and recycled easily after use. Their tools are a robot and a few meters of string. A robotic arm lays out a string in a mandala-like pattern on a bed of gravel. What appears to be a contemporary art performance is basic research that explores new ways in road construction.

Materials Science - Chemistry - 22.03.2021
Recyclable ’veggie’ battery could power future devices
A new type of 3D-printed battery which uses electrodes made from vegetable starch and carbon nanotubes could provide mobile devices with a more environmentally-friendly, higher-capacity source of power. A team of engineers led from the University of Glasgow have developed the battery in a bid to make more sustainable lithium-ion batteries capable of storing and delivering power more efficiently.
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