Thought for the month

“You aren’t learning anything when you’re talking.” Lyndon B. Johnson, US politician and 36th President (1908 – 73).

Tuesday, 12 June 2012

Killer LEDs

We are familiar with the ever increasing use of LEDs in display and lighting applications. Recent work by a group at North Carolina State University on carbon reductions within the AlN substrates within AlN/AlGaN LEDs showed a reduction in UV absorption. The work aims to develop energy-efficient LED devices that use ultraviolet light to kill pathogens such as bacteria and viruses, with uses ranging from drinking-water treatment to sterilizing surgical tools. Commercial applications incorporating this technology are being developed via an NC State spin-off company Hexa Tech, Inc.

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