electron hole

American Heritage
Science Dictionary
electron hole  
See hole.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

electron hole

in solid-state physics, the name given to a missing electron in certain metals and semiconductors. A missing electron is the same as an added positive electric charge, and hence holes behave like positive charges, moving opposite to electrons under the effect of an electric field. Holes affect the electrical, optical, and thermal properties of the solid. Along with electrons, they play a critical role in modern digital technology when they are deliberately introduced into semiconductors.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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