Fiber-optic cables package everything from financial data to cat videos into light, but when the signal arrives at your local data center, it runs into a silicon bottleneck. Instead of light, computers run on electrons moving through silicon-based chips, which are less efficient than photonics. To break through, scientists have been developing lasers that work on silicon. In this week's APL Photonics, researchers write that the future of silicon-based lasers may be in quantum dots.
When it comes to the special sauce of batteries, researchers at the Department of Energy's Pacific Northwest National Laboratory have discovered it's all about the salt concentration.
Argonne scientists and collaborators have identified another elemental actor in catalytic reactions that helps activate palladium while reducing the amount of the precious metal needed for those reactions to occur.
Collaborators of the MAJORANA DEMONSTRATOR have shown they can shield a sensitive, scalable 44-kilogram germanium detector array from background radioactivity. This accomplishment is critical to developing and proposing a much larger future experiment to study neutrinos.
Researchers at the U.S. Department of Energy Joint BioEnergy Institute (JBEI) and Lawrence Berkeley National Laboratory (Berkeley Lab) have discovered a new enzyme that will enable microbial production of a renewable alternative to petroleum-based toluene, a widely used octane booster in gasoline that has a global market of 29 million tons per year.
A study published in <em>Science</em> last week relies on extremely bright X-ray beams from the U.S. Department of Energy's Advanced Photon Source at Argonne National Laboratory to confirm the presence of naturally occurring water at least 410 kilometers below the Earth's surface. This exciting discovery could change our understanding of how water circulates deep in the Earth's mantle and how heat escapes from the lower regions of our planet.
Scientists have used the Hubble Space Telescope to chemically analyze the gas in the Leading Arm (the arching collection of gas that connects the Magellanic Clouds to the Milky Way) and determine its origin.
Researchers at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and UC Berkeley have discovered that as plants develop they craft their root microbiome, favoring microbes that consume very specific metabolites. Their study could help scientists identify ways to enhance the soil microbiome for improved carbon storage and plant productivity.
A team of researchers has compiled a database of information from five fusion machines and found that halo currents could damage the walls of fusion devices like ITER, the international experiment under construction in France to demonstrate the feasibility of fusion power.
Exotic material exhibits an optical response in enormous disproportion to the stimulus -- larger than in any known crystal.
Argonne researchers conducted basic science computational studies as part of a collaboration with researchers at the University of Illinois at Chicago to design a "beyond-lithium-ion" battery cell that operates by running on air over many charge and discharge cycles. The design offers energy storage capacity about three times that of a lithium-ion battery, with significant potential for further improvements.
COSMIC, a next-generation X-ray beamline now operating at Berkeley Lab, brings together a unique set of capabilities to measure the properties of materials at the nanoscale. It allows scientists to probe working batteries and other active chemical reactions, and to reveal new details about magnetism and correlated electronic materials.
Northwestern University researchers have discovered a new approach for creating important new catalysts to aid in clean energy conversion and storage. The method also has the potential to impact the discovery of new optical and data storage materials and catalysts for higher efficiency processing of petroleum products at lower cost. The researchers created a catalyst that is seven times more active than state-of-the-art commercial platinum by combining theory, a new tool for synthesizing nanoparticles and more than one metallic element.
Flexible, tunable technique warms plants without need for electricity, aiding ecosystem research in remote locales.
Understanding strontium titanate's odd behavior will aid efforts to develop materials that conduct electricity with 100 percent efficiency at higher temperatures.
Chemical genomic-guided engineering of gamma-valerolactone-tolerant yeast.
A new particle detector design proposed at the U.S. Department of Energy's Berkeley Lab could greatly broaden the search for dark matter - which makes up 85 percent of the total mass of the universe yet we don't know what it's made of - into an unexplored realm.
On any given day, 20 percent of Americans account for nearly half of U.S. diet-related greenhouse gas emissions, and high levels of beef consumption are largely responsible, according to a new study from researchers at the University of Michigan and Tulane University.
Certain species of trees retain stored water, limit root growth to survive three months without water.
Scientists have gained new insights into a fundamental mystery about hybrid perovskites, low-cost materials that could enhance or even replace conventional solar cells made of silicon.
Research by Berkeley Haas Prof. Ross Levine, the Willis H. Booth Chair in Banking and Finance, is the first to show that when lending conditions ease, businesses invest more in projects to cut pollution.
In Nature Biotechnology, an international team including JGI scientists presents a reference catalog of rumen microbial genomes and isolates, one of the largest targeted cultivation and sequencing projects to date.
n a new study, researchers from the U.S. Department of Energy's Argonne and Brookhaven National Laboratories observed the formation of two kinds of defects in individual nanowires, which are smaller in diameter than a human hair.
It defies conventional wisdom about semiconductors. It's baffling that it even works. It eludes physics models that try to explain it. This newly tested class of light-emitting semiconductors is so easy to produce from solution that it could be painted onto surfaces to light up our future in myriad colors shining from affordable lasers, LEDs, and even window glass.
Paul Voyles, the Beckwith-Bascom Professor in materials science and engineering at the University of Wisconsin-Madison, and collaborators in Madison and at Yale University have made significant experimental strides in understanding how, when and where the constantly moving atoms in molten metal "lock" into place as the material transitions from liquid to solid glass.