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UrduResearchers at Aalto University have found a way to mimic the natural processes that create complex shapes and landscapes with the help of a vibrating plate and resulting energy fields. The results are published on 22 September 2021 in Science Advances.
Tag: Materials
One-dimensional red phosphorous glows in unexpected ways
In a study published in Nature Communications, an international team led by Aalto University researchers has found that fibrous red phosphorous, when electrons are confined in its one-dimensional sub-units, can show large optical responses – that is, the material shows strong photoluminescence under light irradiation. Red phosphorous, like graphene, belongs to a unique group of materials discovered in 2017 called one-dimensional van der Waals (1D vdW) materials.
One-dimensional red phosphorous glows in unexpected ways
In a study published in Nature Communications, an international team led by Aalto University researchers has found that fibrous red phosphorous, when electrons are confined in its one-dimensional sub-units, can show large optical responses – that is, the material shows strong photoluminescence under light irradiation. Red phosphorous, like graphene, belongs to a unique group of materials discovered in 2017 called one-dimensional van der Waals (1D vdW) materials.
Story tips: Sensing oil leaks, 3D prints in space, more fuel from ethanol, Arctic modeling boost, making isotopes faster and nano-enabled microscopy
Story tips: Sensing oil leaks, 3D prints in space, more fuel from ethanol, Arctic modeling boost, making isotopes faster and nano-enabled microscopy
Self-powered implantable device stimulates fast bone healing, then disappears without a trace
Researchers know that electricity can help speed up bone healing, but “zapping” fractures has never really caught on, since it requires surgically implanting and removing electrodes powered by an external source. Xudong Wang’s latest invention may make electrostimulation a much more convenient option to speed up bone healing.
Microspheres Quiver When Shocked
A challenging frontier in science and engineering is controlling matter outside of thermodynamic equilibrium to build material systems with capabilities that rival those of living organisms. Research on active colloids aims to create micro- and nanoscale “particles” that swim through viscous fluids like primitive microorganisms. When these self-propelled particles come together, they can organize and move like schools of fish to perform robotic functions, such as navigating complex environments and delivering “cargo” to targeted locations.
Modeling a circular economy for electronic waste
Think about how many different pieces of technology the average household has purchased in the last decade.
A new ‘gold standard’ compound for generating electricity from heat
Researchers show in a new study that a single material, a layered crystal consisting of the elements rhenium and silicon, turns out to be the gold standard of transverse thermoelectric devices.
New quantum material discovered
In everyday life, phase transitions usually have to do with temperature changes – for example, when an ice cube gets warmer and melts.
ORNL’s Sergei Kalinin elected Fellow of the Microscopy Society of America
Sergei Kalinin, a scientist and inventor at the Department of Energy’s Oak Ridge National Laboratory, has been elected a Fellow of the Microscopy Society of America professional society.
ORNL’s superb materials expertise, data and AI tools propel progress
At the Department of Energy’s Oak Ridge National Laboratory, scientists use artificial intelligence, or AI, to accelerate the discovery and development of materials for energy and information technologies.
Flexible, easy-to-scale nanoribbons move graphene toward use in tech applications
In a study published April 16 in ACS Photonics, University of Wisconsin–Madison researchers fabricated graphene into the smallest ribbon structures to date using a method that makes scaling-up simple. In tests with these tiny ribbons, the scientists discovered they were closing in on the properties they needed to move graphene toward usefulness in telecommunications equipment.
Quantum material’s subtle spin behavior proves theoretical predictions
Using complementary computing calculations and neutron scattering techniques, researchers from the Department of Energy’s Oak Ridge and Lawrence Berkeley national laboratories and the University of California, Berkeley, discovered the existence of an elusive type of spin dynamics in a quantum mechanical system.
New nondestructive optical technique reveals the structure of mother-of-pearl
A new, nondestructive optical technique will unlock more knowledge about nacre, and in the process could lead to a new understanding of climate history.
Do You Know the Way to Berkelium, Californium?
Scientists at Berkeley Lab have demonstrated how to image samples of heavy elements as small as a single nanogram. The new approach will help scientists advance new technologies for medical imaging and cancer therapies.
Automated chemistry sets new pace for materials discovery
Researchers at the Department of Energy’s Oak Ridge National Laboratory and the University of Tennessee developed an automated workflow to study metal halide perovskites, materials with outstanding properties for harnessing light that can be used to make solar cells, energy-efficient lighting and sensors.
Quantum computing enables simulations to unravel mysteries of magnetic materials
A multi-institutional team became the first to generate accurate results from materials science simulations on a quantum computer that can be verified with neutron scattering experiments and other practical techniques.
$500,000 grant funds creation of institute to advance AI for materials science
Funds from an NSF $500,000 grant will be used to bring together an interdisciplinary team of researchers with complementary expertise in artificial intelligence (AI) and material science to lay the groundwork for an AI-Enabled Materials Discovery, Design, and Synthesis (AIMS) Institute.
3D-Printed Smart Gel Changes Shape When Exposed to Light
Inspired by the color-changing skin of cuttlefish, octopuses and squids, Rutgers engineers have created a 3D-printed smart gel that changes shape when exposed to light, becomes “artificial muscle” and may lead to new military camouflage, soft robotics and flexible displays. The engineers also developed a 3D-printed stretchy material that can reveal colors when light changes, according to their study in the journal ACS Applied Materials & Interfaces.
The Mass of Human-Made Materials Now Equals the Planet’s Biomass, Weizmann Institute Finds
The Weizmann Institute’s Prof. Ron Milo has shown that the mass of materials humans produce is now equal to that of all living things on Earth – and we’re doubling that rate every 20 years. He warns that we are at the crossover point and must all “take responsibility.”
Swirl power: how gentle body movement will charge your mobile phone
Researchers have found a way to produce nylon fibres that are smart enough to produce electricity from simple body movement, paving the way for smart clothes that will monitor our health through miniaturised sensors and charge our devices without any external power source.
Story Tips: Ice breaker data, bacterial breakdown, catching heat and finding order
ORNL story tips: Ice breaker data, bacterial breakdown, catching heat and finding order
Smart tablecloth can find fruit and help with watering the plants
Researchers have designed a smart fabric that can detect non-metallic objects ranging from avocadoes to credit cards, according to a study from Dartmouth College and Microsoft Research.
Do the twist: Making two-dimensional quantum materials using curved surfaces
Scientists at the University of Wisconsin–Madison have discovered a way to control the growth of twisting, microscopic spirals of materials just one atom thick. The continuously twisting stacks of two-dimensional materials built by a team led by UW–Madison chemistry Professor Song Jin create new properties that scientists can exploit to study quantum physics on the nanoscale.
Q&A: How machine learning helps scientists hunt for particles, wrangle floppy proteins and speed discovery
At the Department of Energy’s SLAC National Accelerator Laboratory, machine learning is opening new avenues to advance the lab’s unique scientific facilities and research.
First fiber-optic nanotip electron gun enables easier nanoscale research
Scientists at Oak Ridge National Laboratory and the University of Nebraska have developed an easier way to generate electrons for nanoscale imaging and sensing, providing a useful new tool for material science, bioimaging and fundamental quantum research.
Extreme Chemistry of Nuclear Wastes
The PNNL-led IDREAM Energy Frontier Research Center is exploring complex chemical phenomena to enable innovations in radioactive waste processing.
Scientists building 3D-printed nuclear reactor core use HFIR to test novel materials
The Transformational Challenge Reactor will use novel materials. Researchers are testing their performance in a reactor core by irradiating them in the High Flux Isotope Reactor.
Toward an Ultrahigh Energy Density Capacitor
Researchers at Berkeley Lab and UC Berkeley have demonstrated that a common material can be processed into a top-performing energy storage material. Their discovery could improve the efficiency, reliability, and robustness of personal electronics, wearable technologies, and car audio systems.
Quantum Materials Quest Could Benefit From Graphene That Buckles
Graphene, an extremely thin two-dimensional layer of the graphite used in pencils, buckles when cooled while attached to a flat surface, resulting in beautiful pucker patterns that could benefit the search for novel quantum materials and superconductors, according to Rutgers-led research in the journal Nature. Quantum materials host strongly interacting electrons with special properties, such as entangled trajectories, that could provide building blocks for super-fast quantum computers. They also can become superconductors that could slash energy consumption by making power transmission and electronic devices more efficient.
‘Blinking” Crystals May Convert CO2 into Fuels
Imagine tiny crystals that “blink” like fireflies and can convert carbon dioxide, a key cause of climate change, into fuels. A Rutgers-led team has created ultra-small titanium dioxide crystals that exhibit unusual “blinking” behavior and may help to produce methane and other fuels, according to a study in the journal Angewandte Chemie. The crystals, also known as nanoparticles, stay charged for a long time and could benefit efforts to develop quantum computers.
Tiny Bubbles Make a Quantum Leap
Researchers at Columbia Engineering and Montana State University have found that placing sufficient strain in a 2D material creates localized states that can yield single-photon emitters. Using sophisticated optical microscopy techniques developed at Columbia over the past 3 years, the team was able to directly image these states for the first time, revealing that even at room temperature they are highly tunable and act as quantum dots, tightly confined pieces of semiconductors that emit light.
Merging solar cell and liquid battery produces efficient, long-lasting solar storage
Chemists at the University of Wisconsin–Madison and their collaborators have created a highly efficient and long-lasting solar flow battery, a way to generate, store and redeliver renewable electricity from the sun in one device.
Researchers create air filter that can kill the coronavirus
Researchers from the University of Houston, in collaboration with others, have designed a “catch and kill” air filter that can trap the virus responsible for COVID-19, killing it instantly.
2D Semiconductors Found to Be Close-To-Ideal Fractional Quantum Hall Platform
Columbia University researchers report that they have observed a quantum fluid known as the fractional quantum Hall states (FQHS), one of the most delicate phases of matter, for the first time in a monolayer 2D semiconductor. Their findings demonstrate the excellent intrinsic quality of 2D semiconductors and establish them as a unique test platform for future applications in quantum computing.
Harmful Microbes Found on Sewer Pipe Walls
Can antibiotic-resistant bacteria escape from sewers into waterways and cause a disease outbreak? A new Rutgers study, published in the journal Environmental Science: Water Research & Technology, examined the microbe-laden “biofilms” that cling to sewer walls, and even built a simulated sewer to study the germs that survive within.
Summit Helps Predict Molecular Breakups
A team used the Summit supercomputer to simulate transition metal systems—such as copper bound to molecules of nitrogen, dihydrogen, or water—and correctly predicted the amount of energy required to break apart dozens of molecular systems, paving the way for a greater understanding of these materials.
New method measures temperature within 3D objects
University of Wisconsin–Madison engineers have made it possible to remotely determine the temperature beneath the surface of certain materials using a new technique they call depth thermography. The method may be useful in applications where traditional temperature probes won’t work, like monitoring semiconductor performance or next-generation nuclear reactors.
Building a harder diamond
Researchers at the University of Tsukuba used computer calculations to design a new carbon-based material even harder than diamond.
With a ‘catch-and-release’ process, researchers advance graphene electronics
A team of researchers has found a versatile method for the construction of high-quality vdW heterostructures using a dual-function polymeric film with a thickness of below five nanometers to promote the exfoliation of monolayer graphene.
‘Artificial Chemist’ Combines AI, Robotics to Conduct Autonomous R&D
Researchers have developed a technology called “Artificial Chemist,” which incorporates artificial intelligence and an automated system for performing chemical reactions to accelerate R&D and manufacturing of commercially desirable materials.
VENUS construction on track for ORNL’s newest neutron imaging instrument
Researchers and engineers at the Spallation Neutron Source are making progress on the construction of VENUS, the facility’s newest neutron scattering instrument for studying materials in exciting new ways that are currently not possible for open research programs in the US.
Liquid metal research invokes ‘Terminator’ film — but much friendlier
Researchers at Binghamton University, State University of New York have developed “the first liquid metal lattice in the world.” The team has created a series of prototypes that return to their shapes when crushed.
Under Pressure: New Bioinspired Material Can ‘Shapeshift’ to External Forces
Inspired by how human bone and colorful coral reefs adjust mineral deposits in response to their surrounding environments, Johns Hopkins researchers have created a self-adapting material that can change its stiffness in response to the applied force. This advancement can someday open the doors for materials that can self-reinforce to prepare for increased force or stop further damage.
Physicists propose new filter for blocking high-pitched sounds
Need to reduce high-pitched noises? Science may have an answer. In a new study, theoretical physicists report that materials made from tapered chains of spherical beads could help dampen sounds that lie at the upper range of human hearing or just beyond.
New material could turn clothing into a health monitor
Researchers have reported a new material, pliable enough to be woven into fabric but imbued with sensing capabilities that can serve as an early warning system for injury or illness.
How a Magnet Could Help Boost Understanding of Superconductivity
Physicists have unraveled a mystery behind the strange behavior of electrons in a ferromagnet, a finding that could eventually help develop high temperature superconductivity. A Rutgers co-authored study of the unusual ferromagnetic material appears in the journal Nature.
New Software Tests Asphalt Performance More Efficiently
New Brunswick, N.J. (Feb. 26, 2020) – Rutgers University–New Brunswick researchers have created a software tool that more efficiently analyzes how asphalt performs, saving transportation agencies time and money. As performance testing for asphalt pavement has evolved, the focus has shifted…
Valentino Cooper: Building foundations for solid science
Valentino Cooper of Oak Ridge National Laboratory uses theory, modeling and computation to improve fundamental understanding of advanced materials for next-generation energy and information technologies.
No Strain, No Gain! Breakthrough in 2D Material that Produces Single Photons
Recent research has shown that 2D materials may have potential as light sources that emit light as single photons.