Date : Wednesday, March 6, 2002
Time : 4:30 PM
Location: Willet Science Center Room 101

Professor Matthew Marone
Department of Physics
Mercer University

"Light Emitting Diodes - Physics and Applications
(Why is Blue so important anyway?)"

Abstract:  Over 20 billion LED’s are produced annually, more than three for everyone on the planet.  Look around and you see them everywhere.  But how do they work?  The basic semiconductor physics of LED’s will be discussed as well as current applications.  LED’s may some day replace incandescent lamps and are already used in some traffic lights.   Recent advances in semiconductor manufacturing have made blue LED’s possible. Their short wavelength opens up a new world of applications.  White light sources consisting of red blue and green LED’s are now possible. 

Please join us for light refreshments at 4:15. We hope to see you there!