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While most HB-LEDs are manufactured using sapphire or SiC substrates, emerging device types will require more advanced materials. The worldwide demand for GaN and AlN substrates is forecast to grow from $340 million in 2006 to $880 million in 2010...

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The food and beverage industries are turning to UV light as a non-chemical disinfection method. UV kills all known spoilage microorganisms, including bacteria, viruses, yeasts and moulds (and their spores). It is a low maintenance, environmentally friendly technology which eliminates the need for chemical treatment while ensuring high levels of disinfection.

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The Missile Defense Agency is funding development of Deep-ultraviolet LEDs for water sterilization. Current systems rely on high-voltage mercury discharge lamps that guzzle energy, need high-voltage electronics, and contain hazardous mercury. In addition, the lamps burn out after about 8,000 hours and only emit certain fixed-UV wavelengths.

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