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ORNL researchers discovered that water in beryl displays some unique and unexpected characteristics. (Photo by Jeff Scovil)
Neutron scattering and computational modeling have revealed unique and unexpected behavior of water molecules under extreme confinement that is unmatched by any known gas, liquid or solid states. In a paper published in Physical Review Letters, researchers at th...
Light drives the migration of charge carriers (electrons and holes) at the juncture between semiconductors with mismatched crystal lattices. These heterostructures hold promise for advancing optoelectronics and exploring new physics.

Epitaxy, or growing crystalline film layers that are templated by a crystalline substrate, is a mainstay of manufacturing transistors and semiconductors. If the material in one deposited layer is the same as the material in the next layer, it can be energetically fav...

Oak Ridge National Laboratory scientists combined imaging techniques to measure crystallization kinetics of perovskite films following exposure to a mixed halide vapor.

Researchers at the Department of Energy’s Oak Ridge National Laboratory have found a potential path to further improve solar cell efficiency by understanding the competition among halogen atoms during the synthesis of sunlight-absorbing crystals. 

In unbound calyx[4]pyrrole, two pyrrole “petals” are flipped up and two, down.

Atomic charges in chemical solutions are like Switzerland—they strive for neutrality. The tendency to balance charges drives dynamics when charged atoms or molecules, called ions, are present in solutions. Recently, researchers at the Department of Energy’s Oak Ridge National Laborat...

Oak Ridge National Laboratory researchers made a molecule that could selectively bind to metals in the middle of the lanthanide series.

Rare earth elements are metals used in technologies from wind turbines and magnetic resonance imaging agents to industrial catalysts and high-definition televisions. Most are lanthanides, elements with atomic number from 57 to 71, lanthanum to lutetium, in the periodic table. The la...

ORNL’s tough new plastic is made with 50 percent renewable content from biomass. Image credit: Oak Ridge National Laboratory, U.S. Dept. of Energy; conceptual art by Mark Robbins
Your car’s bumper is probably made of a moldable thermoplastic polymer called ABS, shorthand for its acrylonitrile, butadiene and styrene components. Light, strong and tough, it is also the stuff of ventilation pipes, protective headgear, kitchen appliances, Lego bri...
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When lots of energy hits an atom, it can knock off electrons, making the atom extremely chemically reactive and initiating further destruction. That’s why radiation is so dangerous. It’s also why high-resolution imaging techniques that use energetic electron beams ...
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Two-dimensional electronic devices could inch closer to their ultimate promise of low power, high efficiency and mechanical flexibility with a processing technique developed at the Department of Energy’s Oak Ridge National Laboratory.
Oak Ridge National Laboratory researchers re-evaluated used nuclear fuel rods from a commercial reactor and reduced data uncertainties by an order of magnitude compared with previous measurements taken at a different lab.

Nearly 100 commercial nuclear reactors supply one-fifth of America’s energy. For each fuel rod in a reactor assembly, only 5 percent of its energy is consumed before fission can no longer be sustained efficiently for power production and the fuel assembly must be replaced. Power plan...

ORNL’s Jim Keiser and Mike Stephens (on stepladder) prepare to install samples in a Keiser rig, a furnace for exposing materials to corrosive gases, crushing pressures and calamitous heat. Image credit: Oak Ridge National Laboratory, U.S. Dept. of Energy;
The global marketplace demands constant improvements in performance and efficiency of aircraft engines, power turbines and other modern mainstays of energy technology. This progress requires advanced structural materials, such as ceramic composites and metal alloys with higher-t...