Today's Word of the Day means...
|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.