News tagged with electrical field

Cooling chips with the flip of a switch

Turn on an electric field, and a standard electrocaloric material will eject heat to its surroundings as its internal dipoles reorder themselves. Do the same thing, and a negative electrocaloric material will absorb heat, ...

dateApr 05, 2016 in General Physics
shares549 comments 0

Quantum dots light up under strain

Semiconductor nanocrystals, or quantum dots, are tiny, nanometer-sized particles with the ability to absorb light and re-emit it with well-defined colors. With low-cost fabrication, long-term stability and a wide palette ...

dateSep 23, 2015 in Nanophysics
shares276 comments 0