Scientists debut most efficient ‘optical rectennas,’ devices that harvest power from heat – Science Codex

Scientists at the University of Colorado Boulder have tapped into a poltergeist-like property of electrons to design devices that can capture excess heat from their environment–and turn it into usable electricity.
The researchers have described their new “optical rectennas” in a paper published today in the journal Nature Communications. These devices, which are too small to see with the naked eye, are roughly 100 times more efficient than similar tools used for energy harvesting. And they achieve…

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