valence band

noun

: 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

Example Sentences

Recent Examples on the Web In chemistry, bandgap is the distance between the conduction band and the valence band of the material’s atoms. Caroline Delbert, Popular Mechanics, 11 May 2022 The ability of a solid material to conduct electricity depends on the ability to flow electrons from the valence band to the conduction band. Willy Shih, Forbes, 4 Oct. 2021 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, 22 July 2019 All the electrons are sitting at low energy, trapped in the valence band. Chris Lee, Ars Technica, 1 June 2019 At this point, the electron will emit a photon and return to the valence band. Chris Lee, Ars Technica, 1 June 2019

These 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.

Word History

First Known Use

1953, in the meaning defined above

Time Traveler
The first known use of valence band was in 1953

Dictionary Entries Near valence band

Cite this Entry

“Valence band.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/valence%20band. Accessed 9 Dec. 2022.

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