Scientists who are members of a new energy materials-related science center based at Berkeley Lab have solved a mystery that could lead to gains in efficiency for organic solar cells.
Chiral nematic liquid crystals are an emerging class of lasing devices that are poised to shape how lasers are used in the future. New work on how to select band-edge modes in these devices, which determine the lasing energy, may shine light on how lasers of the future will be tuned, and researchers have demonstrated a technique that allows the laser to electrically switch emission between the long- and short-wavelength edges of the photonic bandgap. They report their work this week in Applied Physics Letters.
Rutgers scientists have found the "Legos of life" - four core chemical structures that can be stacked together to build the myriad proteins inside every organism - after smashing and dissecting nearly 10,000 proteins to understand their component parts. The four building blocks make energy available for humans and all other living organisms, according to a study published online today in the Proceedings of the National Academy of Sciences.
University of Washington researchers have published the first major assessment of small hydropower dams around the world -- including their potential for growth -- and highlight the incredibly variability in how dams of varying sizes are categorized, regulated and studied.
A team led by the Department of Energy's Oak Ridge National Laboratory has uncovered how certain soil microbes cope in a phosphorus-poor environment to survive in a tropical ecosystem. Their novel approach could be applied in other ecosystems to study various nutrient limitations and inform agriculture and terrestrial biosphere modeling.
Researchers at Berkeley Lab discovered that a form of perovskite, one of the hottest materials in solar research due to its high conversion efficiency, works surprisingly well as a stable and photoactive semiconductor material that can be reversibly switched between a transparent state and a non-transparent state, without degrading its electronic properties.
Can farmers produce at least 1 billion tons of biomass per year that can be used as biofuels feedstock? The answer is yes.
New research from the U.S. Department of Energy's Argonne National Laboratory and Stanford University has found that palladium nanoparticles can repair atomic dislocations in their crystal structure, potentially leading to other advances in material science.
A Berkeley Lab-led team of researchers has reported that a new lithium-sulfur battery component allows a doubling in capacity compared to a conventional lithium-sulfur battery, even after more than 100 charge cycles.
Non-destructive technique identifies key variations in Alaskan soils, quickly providing insights into carbon levels.
Using Oak Ridge National Laboratory's Titan supercomputer, a team led by Brown University's George Karniadakis devised a multiscale model of sickle cell disease that captures what happens inside a red blood cell affected by the disease.
New approach offers data across species, sites, and canopies, providing insights into carbon uptake by forests.
A new study led by Kathryn Caldwell, an assistant professor of psychology at Ithaca College, demonstrates that homeowners can be encouraged to make changes to their energy use with a simple education plan and some helpful tricks from the world of social psychology.
Scientists used spiraling X-rays at Berkeley Lab to observe, for the first time, a property that gives left- or right-handedness to swirling electric patterns - dubbed polar vortices - in a layered material called a superlattice.
By combining the latest developments in neutron scattering and theory, researchers are close to predicting phenomena like superconductivity and magnetism in strongly correlated electron systems. It is likely that the next advances in superconductivity and magnetism will come from such systems, but they might also be used in completely new ways such as quantum computing.
For deep learning to be effective, existing neural networks to be modified, or novel networks designed and then "trained" so that they know precisely what to look for and can produce valid results. This is a time-consuming and difficult task, but one that a team of ORNL researchers recently demonstrated can be dramatically expedited with a capable computing system.
At a special session held during the American Astronomical Society meeting in Washington, D.C., scientists on the Dark Energy Survey (DES) announced today the public release of their first three years of data. This first major release of data from the Survey includes information on about 400 million astronomical objects, including distant galaxies billions of light-years away as well as stars in our own galaxy.
A detailed study of blue salt crystals found in two meteorites that crashed to Earth - which included X-ray experiments at Berkeley Lab - found that they contain both liquid water and a mix of complex organic compounds including hydrocarbons and amino acids.
An electric field switches the conductivity on and off in atomic-scale channels, which could allow for upgrades at will.
a team of researchers led by Arizona State University and Google has assessed the value of urban agriculture and quantified its benefits at global scale. They report their findings in "A Global Geospatial Ecosystems Services Estimate of Urban Agriculture," in the current issue of Earth's Future.
Water passes through human-made straws faster than the "gold standard" protein, allowing us to filter seawater.
Machine learning and neural networks are the foundation of artificial intelligence and image recognition, but now they offer a bridge to see and recognize exotic insulating phases in quantum materials.
A revolutionary material harbors magnetism and massless electrons that travel near the speed of light--for future ultrasensitive, high-efficiency electronics and sensors.
Observed atomic dynamics helps explain bizarre flow without friction that has been puzzling scientists for decades.
Electrons are forced to the edge of the road on a thin sheet of tungsten ditelluride.