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SUMMARY:Lighting the Future: Next generation LED lighting to save energy a
 nd improve our health - Professor Sir Colin Humphreys CBE FREng FRS\, Depa
 rtment of Materials Science & Metallurgy
DTSTART:20150209T180000Z
DTEND:20150209T190000Z
UID:TALK53971@talks.cam.ac.uk
CONTACT:Beverley Larner
DESCRIPTION:Abstract:\nThe 2014 Nobel Prize for Physics was awarded to thr
 ee Japanese scientists for the invention of blue light-emitting diodes mad
 e from gallium nitride (GaN). This talk will describe research of the Camb
 ridge Centre for Gallium Nitride which has built upon this Nobel Prize win
 ning work. In particular\, we have solved the mystery of why GaN LEDs are 
 so bright when the defect density of the GaN is so high. We have also show
 n how to reduce substantially the cost of LEDs for lighting\, and low-cost
  LEDs based on our technology are now being manufactured in the UK by Ples
 sey. These low-cost LEDs should enable their widespread use\, resulting in
  substantial savings of electricity and carbon emissions. GaN is also usef
 ul for low-energy power electronic devices as well as low-energy lighting\
 , and GaN has the potential to save 25% of all the electricity we use and 
 25% of carbon emissions from power stations. Optimised LED lighting can im
 prove our health\, reduce cancer and even improve exam performance!\n
LOCATION:Bristol-Myers-Squibb Lecture theatre\, Department of Chemistry
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