Researchers at the Georgia Institute of Technology have developed a first of its kind: an optical rectenna, which combines the qualities of an antenna with a rectifier diode. If further refined, the researchers believe the device could lead to a new generation of highly efficient solar cells. While rectennas have been around since the 1960s, they have not been able to operate at optical wavelengths. The challenge in achieving this goal was to make the…
Optical rectenna could double solar cell efficiency
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