Tuesday, December 11, 2018
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graphene

NIST Simulations Suggest Graphene Can Stretch to Be a Tunable Ion...

Researchers at the National Institute of Standards and Technology (NIST) have conducted simulations suggesting that graphene, in addition to its many other useful features,...
ultra-low-power microchips

Study Opens Route to Ultra-Low-Power Microchips

A new approach to controlling magnetism in a microchip could open the doors to memory, computing, and sensing devices that consume drastically less power...
cell-sized robotsvideo

How to Mass Produce Cell-Sized Robots

Tiny robots no bigger than a cell could be mass-produced using a new method developed by researchers at MIT. The microscopic devices, which the...
cement

Making Cement Sustainable

Cement production accounts for up to nine percent of global anthropogenic carbon dioxide emissions, according to the World Business Council for Sustainable Development. Sabbie...
Flexible Electronics

Study Opens Route to Flexible Electronics Made from Exotic Materials

The vast majority of computing devices today are made from silicon, the second most abundant element on Earth, after oxygen. Silicon can be found...
Iron Superconductor

“Choosy” Electronic Correlations Dominate Metallic State of Iron Superconductor

Two families of high-temperature superconductors (HTS)—materials that can conduct electricity without energy loss at unusually high (but still quite cold) temperatures—may be more closely...
In a thin film of a solar-energy material, molecules in twin domains (modeled in left and right panels) align in opposing orientations within grain boundaries (shown by scanning electron microscopy in the center panel). Strain can change chemical segregation and may be engineered to tune photovoltaic efficiency. Credit: Stephen Jesse/Oak Ridge National Laboratory, U.S. Dept. of Energy

Multimodal Imaging Shows Strain Can Drive Chemistry in a Photovoltaic Material

A unique combination of imaging tools and atomic-level simulations has allowed a team led by the Department of Energy’s Oak Ridge National Laboratory to...
Lithium-Ion Battery

X-Rays Uncover a Hidden Property That Leads to Failure in a...

Over the past three decades, lithium-ion batteries, rechargeable batteries that move lithium ions back and forth to charge and discharge, have enabled smaller devices...
Human Nervous System

Research Team Exploring How Mechanical Signals Help Develop the Human Nervous...

A team of researchers including Yubing Sun of the University of Massachusetts Amherst has demonstrated that human pluripotent stem cells can be guided to...
superlubricity

Microscale Superlubricity Could Pave Way for Future Improved Electromechanical Devices

Lubricity measures the reduction in mechanical friction and wear by a lubricant. These are the main causes of component failure and energy loss in...
relaxor ferroelectrics

Relax, Just Break It

The properties of a solid depend on the arrangement of its atoms, which form a periodic crystal structure. At the nanoscale, arrangements that break...
borophene

In Borophene, Boundaries are No Barrier

When objects break, they tend not to fix themselves. But a recent study shows that new material borophene might not play by these rules. When...
Carbon Nanotube Optics

Carbon Nanotube Optics Poised to Provide Pathway to Optical-Based Quantum Cryptography...

Researchers at Los Alamos and partners in France and Germany are exploring the enhanced potential of carbon nanotubes as single-photon emitters for quantum information...
Silicon-Perovskite Solar Cells

Silicon-Perovskite Solar Cells Achieve Record Efficiency of 25,2%

In the field of photovoltaic technologies, silicon-based solar cells make up 90% of the market. In terms of cost, stability and efficiency (20-22% for...
batteries and fuel cells

Paving the Way for Safer Smaller Batteries and Fuel Cells

Fuel cells and batteries provide electricity by generating and coaxing positively charged ions from a positive to a negative terminal which frees negatively charged...
Erasable MRI Scans

Why We Need Erasable MRI Scans

Magnetic resonance imaging, or MRI, is a widely used medical tool for taking pictures of the insides of our body. One way to make...
Superconductors

Some Superconductors Can Also Carry Currents of ‘Spin’

Spin is a particle’s intrinsic angular momentum, and is normally carried in non-superconducting, non-magnetic materials by individual electrons. Spin can be ‘up’ or ‘down’,...
2D materials

Method to Grow Large Single-Crystal Graphene Could Advance Scalable 2D Materials

A new method to produce large, monolayer single-crystal-like graphene films more than a foot long relies on harnessing a “survival of the fittest” competition...
semimetals

Neutrons Reveal the Wild Weyl World of Semimetals

The observation of an abnormal state of matter in a two-dimensional magnetic material is the latest development in the race to harness novel electronic...
brain on a chip

Engineers Design Artificial Synapse for “Brain-On-A-Chip” Hardware

When it comes to processing power, the human brain just can’t be beat. Packed within the squishy, football-sized organ are somewhere around 100 billion neurons....