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 ...

It's been the dream of visionaries for decades: Sunlight converted into direct current to use for recharging emission-free electric cars. Photovoltaic cells offer that capability today, but now ...

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 ...

Developed by engineers at the Georgia Institute of Technology, optical rectennas use carbon nanotubes that act as antennas to capture light from the sun or other sources. As the waves of light hit the ...

Scientists at CU 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 ...

This project aims to develop compact, multi-functional implantable RF rectenna platforms essential for next-generation deep-body Bioelectronic Implanted Systems. The primary objective is to develop ...