conduction band

noun

1. See energy band

conduction band

1. 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.

2. Compare valence band See also bandgap

Example Sentences

Unlike the deep defects, they are not located in the middle of the band gap, but very close to the valence or conduction band.

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In a solar cell, electrons are dislodged by photons and raised to a higher energy level from the valence band to the conduction band.

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The team used a laser to create a cloud of excitons at a corner of the pyramid's base, bouncing electrons out of the valence band of a semiconductor into the conduction band -- but the negatively charged electrons are still attracted to the positively charged holes left behind in the valence band.

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This size reduction, in turn, results in the folding of the materials’ electronic bands in momentum space, moving the position at which the energy value of the conduction band is at a minimum to the centre of the Brillouin zone, and thus generating a direct bandgap.

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Semiconductors are defined by their band gap: the energy required to excite an electron stuck in the valence band, where it cannot conduct electricity, to the conduction band, where it can.

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