Unique two-level cathode structure improves battery performance

Building a better battery is a delicate balancing act. Increasing the amounts of chemicals whose reactions power the battery can lead to instability. Similarly, smaller particles can improve reactivity but expose more material ...

'Invisible' particles could enhance thermoelectric devices

Thermoelectric devices—which can either generate an electric current from a difference in temperature or use electricity to produce heating or cooling without moving parts—have been explored in the laboratory since the ...

Sony TVs show high-end color via quantum dot tech

(Phys.org)—Sony's Bravia LCD TVs, in selected models, have incorporated quantum dot technology to boost sales of these high-end televisions by featuring exceptionally high-end color. The technology is from the Massachusetts-based ...

Physicists measure photonic interactions at the atomic level

By measuring the unique properties of light on the scale of a single atom, researchers from Duke University and Imperial College, London, believe that they have characterized the limits of metal's ability in devices that ...

Why carbon nanotubes spell trouble for cells

It's been long known that asbestos spells trouble for human cells. Scientists have seen cells stabbed with spiky, long asbestos fibers, and the image is gory: Part of the fiber is protruding from the cell, like a quivering ...

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