Foil-Based LEDs Offer More Portable Purification

Nov-17-16 Researchers are developing foil-based LEDs that could be used to purify water and sterilize medical equipment.

Created by a team from Ohio State University, the flexible foil LEDs are the first of their kind, and were designed to shine at the high-energy end of the UV scale. Previously, this deep UV light from LEDs had only been produced in the lab, using expensive equipment. To take the LEDs out of the lab, the team turned to their experience in nanophotonics, and used molecular beam epitaxy to grow a carpet of tightly packed wires that are invisible to the naked eye, but shine as brightly as the more expensive alternatives.

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