March 13, 2009
Samsung Electro-Mechanics has announced a new blue LED which increases light output and energy efficiency.
Produced by researchers at the Rensselaer Polytechnic Institute (RPI) in New York, the LED achieves 18 per cent greater light output and 22 per cent greater energy efficiency.
The development takes advantage of polarisation-matching, which reduces the effects of "droop", a phenomenon that causes LEDs to be negatively affected by high density currents.
E Fred Schubert, professor of future chips at RPI, said that LEDs operate at current densities which are higher than the point at which light output and efficiency peak.
He added that the new LED has a "radically re-designed active region, namely a polarisation-matched active region, tackles this issue and brings LEDs closer to being able to operate efficiently at high current densities".
Last month, LED producer Marktech announced an energy-efficient bulb which produces 160 lumens with 4.6 watts of power.
Rapid Electronics are a leading UK supplier of electronic components, electrical products and industrial equipment to the Electrical Contractors sector.
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