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In conventional, low-temperature superconductivity (left), so-called Cooper pairing arises from the presence of an electron Fermi sea. In the pseudogap regime of the cuprate superconductors (right), parts of the Fermi sea are “dried out” and the charge-ca
When physicists Georg Bednorz and K. Alex Muller discovered the first high-temperature superconductors in 1986, it didn’t take much imagination to envision the potential technological benefits of harnessing such materials.
Department of Energy national lab researchers found strain dramatically influences low-temperature oxygen electrocatalysis on perovskite oxides, enhancing bifunctional activity essential for fuel cells and metal–air batteries.

Catalysts make chemical reactions more likely to occur. In most cases, a catalyst that’s good at driving chemical reactions in one direction is bad at driving reactions in the opposite direction. However, a research team led by the Department of Energy’s Oak Ridge National Laboratory ...

ORNL carbon fiber processing technology co-invented by Felix Paulauskas (left) has been licensed to RMX Technologies, represented by vice president for research and development Truman Bonds.

RMX Technologies of Knoxville, Tenn., and the Department of Energy’s Oak Ridge National Laboratory have signed an exclusive licensing agreement for a new technology that dramatically reduces the time and energy needed in the production of carbon fiber. Lowering the ...

An ORNL-led research team found the key to fast ion conduction in a solid electrolyte. Tiny features maximize ion transport pathways, represented by red and green. Image credit: Oak Ridge National Laboratory, U.S. Dept. of Energy

In a rechargeable battery, the electrolyte transports lithium ions from the negative to the positive electrode during discharging. The path of ionic flow reverses during recharging. The organic liquid electrolytes in commercial lithium-ion batteries are flammable and su...

Discarded tires can provide material useful for lower-cost sodium-ion batteries for energy storage.
Hard carbon materials recycled from tires continue to show great promise as anodes in sodium-ion batteries for large-scale energy storage, according to an Oak Ridge National Laboratory study led by Yunchao Li. The carbons, captured by pyrolyzing, or baking in the absence of oxygen, tir...
A 3D-printed thermoplastic mold manufactured at ORNL withstood testing in an industrial autoclave.

A successful test of 3D-printed thermoplastic molds demonstrates the potential of additive manufacturing in the tooling industry. Researchers at Oak Ridge National Laboratory’s Manufacturing Demonstration Facility collaborated with a team of industry partners to 3D-print and machine se...

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...