conduction band


: the range of permissible energy values which an electron in a solid material can have that allows the electron to dissociate from a particular atom and become a free charge carrier in the material compare valence band

Examples of conduction band in a Sentence

Recent Examples on the Web When energy is applied, electrons will move from the valence band (the ground state) to the conduction band (the excited state) and can be harnessed as electrical energy. Tracy H. Schloemer, IEEE Spectrum, 19 Sep. 2023 The bandgap of a semiconductor is defined as the energy, in electron volts, needed for an electron in the semiconductor lattice to jump from the valence band to the conduction band. IEEE Spectrum, 26 Mar. 2023 An electron in the valence band participates in the bonding of atoms within the crystal lattice, whereas in the conduction band electrons are free to move around in the lattice and conduct electricity. IEEE Spectrum, 26 Mar. 2023 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 a light-emitting diode, electrons drop out of the conduction band by losing energy in the form of light. Chris Lee, Ars Technica, 22 July 2019 For this to work, the energy difference between the conduction band and the valence band needs to be reversed. Chris Lee, Ars Technica, 1 June 2019 Instead of directly absorbing energy, electrons can also tunnel through barriers to get to the conduction band. Chris Lee, Ars Technica, 1 June 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'conduction band.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1939, in the meaning defined above

Time Traveler
The first known use of conduction band was in 1939

Dictionary Entries Near conduction band

Cite this Entry

“Conduction band.” Dictionary, Merriam-Webster, Accessed 18 Jun. 2024.

More from Merriam-Webster on conduction band

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!