conduction band
Americannoun
noun
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The electron orbital or orbitals, generally the outermost orbitals, in atoms in a conductor or semiconductor, in which the electrons are free enough to move and thereby carry an electric current.
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Compare valence band See also bandgap
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Excitons form inside semiconductors when electrons absorb energy and jump from their resting state in the valence band to a higher energy state in the conduction band.
From Science Daily • Jan. 22, 2026
Unlike the deep defects, they are not located in the middle of the band gap, but very close to the valence or conduction band.
From Science Daily • Jan. 10, 2024
The size of the band gap, or the energy difference between the top of the valence band and the bottom of the conduction band, determines how easy it is to move electrons between the bands.
From Textbooks • Feb. 14, 2019
Only a very small amount of energy is required to move electrons from the valence band to the conduction band in a conductor, and so they conduct electricity well.
From Textbooks • Feb. 14, 2019
Injection of electrons from the dye into the conduction band of the oxide nanoparticles must proceed faster than exciton recombination within the dye.
From Nature • Aug. 15, 2012
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
