Researchers Boost Efficiency and Stability of Optical Rectennas | Research Horizons

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 could allow the rectennas – which convert electromagnetic fields at optical frequencies directly to electrical current – to operate low-power devices such as temperature sensors. Electronics and Nanotechnology Energy and Sustainable Infrastructure Materials