Lab-grown LED provides better way to clean water
Engineers at Ohio State University, USA, have developed foil based LEDs for portable ultraviolet (UV) lights that soldiers and others can use to purify drinking water and sterilise medical equipment. The LEDs are created on lightweight flexible metal foil.
As per Roberto Myers, associate professor of materials science and engineering at Ohio State University, the military, industry and humanitarian organisations already use deep UV light for applications ranging from detection of biological agents to curing plastics. However, traditional deep-UV lamps are very heavy and electrically inefficient.
LED foil could offer a more environmentally-friendly light to purify water. The researchers are confident that they will be able to scale up their prototype; their goal is to transform nanophotonics, a study centred around how objects just nanometres big interact with light, into a profitable industry.