Study Reveals New Insights into How Hybrid Perovskite Solar Cells Work

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.

Want to Clean Up the Environment? Make Credit Easier to Get.

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.

A Reference Catalog for the Rumen Microbiome

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.

Scientists Have a New Way to Gauge the Growth of Nanowires

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.

A Future Colorfully Lit by Mystifying Physics of Paint-On Semiconductors

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.

Liquid-to-Glass Transition Process Gains Clarity

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.

Living Sensor Can Potentially Prevent Environmental Disasters From Fuel Spills

The Colonial Pipeline, which carries fuel from Texas to New York, ruptured last fall, dumping a quarter-million gallons of gas in rural Alabama. By the time the leak was detected during routine inspection, vapors from released gasoline were so strong they prevented pipeline repair for days. Now, scientists are developing technology that would alert pipeline managers about leaks as soon as failure begins, avoiding the environmental disasters and fuel distribution disruptions resulting from pipeline leaks.

Graphene Oxide Nanosheets Could Help Bring Lithium-Metal Batteries to Market

Lithium-metal batteries -- which can hold up to 10 times more charge than the lithium-ion batteries that currently power our phones, laptops and cars -- haven't been commercialized because of a fatal flaw: as these batteries charge and discharge, lithium is deposited unevenly on the electrodes. This buildup cuts the lives of these batteries too short to make them viable, and more importantly, can cause the batteries to short-circuit and catch fire.

United States Department of Energy to Host Multi-Laboratory Cyber Defense Competition

In less than one month, over a hundred college students from across the United States will convene in one of the largest cyber defense competitions in the nation. The event, hosted by the U.S. Department of Energy, will take place on April 6-7, 2018. This event will be simultaneously hosted across three of the Department's national laboratories: Argonne, Oak Ridge and Pacific Northwest. The completion challenges students to respond to a scenario based on a real-world challenge of vital importance: protecting the Nation's energy critical infrastructure from the cyber threat.

Diamonds From the Deep: Study Suggests Water May Exist in Earth's Lower Mantle

A new study, which included experiments at Berkeley Lab, suggests that water may be more common than expected at extreme depths approaching 400 miles and possibly beyond - within Earth's lower mantle. The study explored microscopic pockets of a trapped form of crystallized water molecules in a sampling of diamonds.

Data Dive: How Microbes Handle Poor Nutrition in Tropical Soil

High-performance computing reveals the relationship between DNA and phosphorous uptake.

The Secret Lives of Cells

Supercomputer simulations predict how E. coli adapts to environmental stresses.

The Element of Surprise

In a new study from the U.S. Department of Energy's (DOE) Argonne National Laboratory and the University of Lille in France, chemists have explored protactinium's multiple resemblances to more completely understand the relationship between the transition metals and the complex chemistry of the early actinide elements.

Chemists use abundant, low-cost and non-toxic elements to synthesize semiconductors

Javier Vela of Iowa State University and the Ames Laboratory has worked with two of his graduate students to synthesize a new material for semiconductors. The chemists think the material will work well in solar cells, but without the toxicity, scarcity or costs of other semiconductors.

Turbocharging Fuel Cells with a Multifunctional Catalyst

Zero-emissions cars zipping into a sustainable energy future are just one dream powered by fuel cells. But cell technology has been a little sluggish and fuel prohibitively pricey. This new catalyst could offer a game changer. And there are more developments to come.

Researchers Develop Spectroscopic Thermometer for Nanomaterials

A scientific team led by the Department of Energy's Oak Ridge National Laboratory has found a new way to take the local temperature of a material from an area about a billionth of a meter wide, or approximately 100,000 times thinner than a human hair.

Predicting a New Phase of Superionic Ice

Researchers bring extreme conditions to a supercomputer and discover new insights about our solar system and beyond.

Drifting and Bouncing Particles Can Help Maintain Stability in High-Performance Fusion Plasmas

Physicists at PPPL have recently found that drifting particles in plasma can forestall instabilities that reduce the pressure crucial to high-performance fusion reactions inside these facilities.

A Game Changer: Metagenomic Clustering Powered by HPC

Berkeley Lab and Joint Genome Institute researchers took one of the most popular clustering approaches in modern biology--Markov Clustering algorithm--and modified it to run efficiently and at scale on supercomputers. Their algorithm achieved a previously impossible feat: clustering a 70 million node and 68 billion edge biological network in hours.

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 among crystals. The novel technique, developed by a team led by the Department of Energy's Oak Ridge National Laboratory, may open new opportunities for growing the high-quality two-dimensional materials necessary for long-awaited practical applications.

Riding the (Quantum Magnetic) Wave

Working together, Miller, Boehme, Vardeny and their colleagues have shown that an organic-based magnet can carry waves of quantum mechanical magnetization, called magnons, and convert those waves to electrical signals. It's a breakthrough for the field of magnonics (electronic systems that use magnons instead of electrons) because magnons had previously been sent through inorganic materials that are more difficult to handle.

Painting a Clear Picture of How Nitrogen Oxides Are Formed

For decades, combustion researchers and engine companies have been seeking to understand how these gases are produced during combustion so that they can find ways to reduce them. Now Argonne researchers have synthesized more than a decade's worth of combustion studies to create a new overarching model of how nitrogen oxides are produced.

Locked in a Forest

Argonne researchers have found that in the next 100 years, already existing reforestation in the country could help topsoil absorb an additional 2 billion tons of carbon. Their work is detailed in a recent study in the <em>Proceedings of the National Academy of Sciences</em>.

Increasing tree mortality in a warming world

A mix of factors is contributing to an increasing mortality rate of trees in the moist tropics, where trees in some areas are dying at about twice the rate that they were 35 years ago.

Thirdhand Smoke Found to Increase Lung Cancer Risk in Mice

Researchers at Berkeley Lab identified thirdhand smoke, the toxic residues that linger on indoor surfaces and in dust long after a cigarette has been extinguished, as a health hazard nearly 10 years ago. Now a new study has found that it also increases lung cancer risk in mice.