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  Home > JCE Print > Journal of Chemical Education > Issues > 1996  > August  >
General Interest
Porous Silicon and the Search for a Silicon-Based LED
Ron Swisher
Oregon Institute of Technology, Klamath Falls, OR 97601

G. L. Richmond and Peter C. Sercel
University of Oregon, Eugene, OR 97403

Cover
August 1996
Vol. 73 No. 8
p. 738
Abstract
Silicon has not been used in LED fabrication because of its very low luminescence efficiency. There has been a great deal of interest in porous silicon, a form of silicon which luminesces at about 680 nm. The origin of this luminescence is controversial and several theories involving surface compounds and quantum confinement models have been developed to explain it. Porous silicon is easily made and its photo- and electroluminescence are easily demonstrated in the classroom. It provides an easily demonstrated example of key concepts in semiconductor chemistry.
More Information
*  Citation
 Swisher, Ron; Richmond, G. L.; Sercel, Peter C. J. Chem. Educ. 1996 73 738.
*  Keywords
*  History
 Created:
Last Updated:		 9/23/1999
5/22/2006
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