valence band
nounDefinition of valence band
: the range of permissible energy values that are the highest energies an electron can have and still be associated with a particular atom of a solid material — compare conduction band
Examples of valence band in a Sentence
Recent Examples on the Web
In silicon, electrons have to emit a photon and a sound vibration (a phonon) at the same time to reach the valence band. — Chris Lee, Ars Technica, "Silicon LED created by buzzing surface with high-speed electrons," 22 July 2019 All the electrons are sitting at low energy, trapped in the valence band. — Chris Lee, Ars Technica, "Wireless nanowire lasers absorb infrared, emit blue light," 1 June 2019 At this point, the electron will emit a photon and return to the valence band. — Chris Lee, Ars Technica, "Wireless nanowire lasers absorb infrared, emit blue light," 1 June 2019These example sentences are selected automatically from various online news sources to reflect current usage of the word 'valence band.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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