conduction band

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Related to conduction bands: Band theory of solids

Conduction band

The electronic energy band of a crystalline solid which is partially occupied by electrons. The electrons in this energy band can increase their energies by going to higher energy levels within the band when an electric field is applied to accelerate them or when the temperature of the crystal is raised. These electrons are called conduction electrons, as distinct from the electrons in filled energy bands, which, as a whole, do not contribute to electrical and thermal conduction. In metallic conductors the conduction electrons correspond to the valence electrons (or a portion of the valence electrons) of the constituent atoms. In semiconductors and insulators at sufficiently low temperatures, the conduction band is empty of electrons. Conduction electrons come from thermal excitation of electrons from a lower energy band or from impurity atoms in the crystal. See Band theory of solids, Electric insulator, Semiconductor, Valence band

conduction band

[kən′dək·shən ‚band]
(solid-state physics)
An energy band in which electrons can move freely in a solid, producing net transport of charge.
References in periodicals archive ?
Moreover, there is strong evidence to suggest that sunspots are metallic [23] and, therefore, maintain electronic conduction bands with their own associated energy.
Figure 3 indicates an absorption edge at about 840 nm due to the optical transition from the valence band and conduction band.
In the amorphous semiconductor materials, the optical transition is from the valence-band tail states to the conduction band and from the extended states in the valence band to the conduction-band tail states (14).
If the bandgap is low, meaning the valence and conduction bands are close together, less energy is required for the material to conduct electricity.