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Research from North Carolina State University will allow the development of energy-efficient LED devices that use ultraviolet (UV) light to kill pathogens such as bacteria and viruses. The technology has a wide array of applications ranging from drinking-water treatment to sterilizing surgical tools.

(PhysOrg.com) -- For the first time, researchers have demonstrated that an LED can emit more optical power than the electrical power it consumes. Although scientifically intriguing, the results won’t immediately result in ultra-efficient commercial LEDs since the demonstration works only for LEDs with very low input power that produce very small amounts of light.

Scientists study the movement of charge carriers to design an organic LED that is energy efficient and still casts a warm, natural glow.

Scientists study the movement of charge carriers to design an organic LED that is energy efficient and still casts a warm, natural glow.

A team at Stanford's School of Engineering has demonstrated an ultrafast nanoscale light emitting diode (LED) that is orders of magnitude lower in power consumption than today's laser-based systems and able to transmit data at 10 billion bits per second.

The Japanese company INAX is pioneering new toilet concepts that transform the utilitarian fixture into a self-cleaning spa-like experience.

Bridgelux says it has developed a cheaper way to produce LED bulbs. LED Chips, on the Cheap LED bulbs have long been lauded as an energy-efficient alternative to incandescent bulbs.

This week, the lighting startup company vu1 is beginning to ship a new type of lightbulb that could displace compact fluorescents and LED lamps as the energy-saving bulb of choice. The technology, known as cathodoluminescence or electron-stimulated luminescence (ESL), offers similar energy savings, but provides a more natural quality of light. [break] [More]

A breakthrough in producing light emitting diodes could bring LED production costs down as much as 75%. A breakthrough in producing light emitting diodes could see LED production costs tumble as much as 75%.