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.
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.
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