The research team that announced the first optical rectenna in 2015 is now reporting a two-fold efficiency improvement in the devices -- and a switch to air-stable diode materials. The improvements ...

Devices known as optical rectennas show considerable promise for renewable energy because they can harvest energy from heat and convert it into electricity. Their chief drawback is their low ...

May 18 (UPI) --A new energy-harvesting device developed by engineers at the University of Colorado takes advantage of the ghost-like property of electrons to turn excess heat into usable electricity.

(Nanowerk News) The research team that announced the first optical rectenna in 2015 is now reporting a two-fold efficiency improvement in the devices -- and a switch to air-stable diode materials. The ...