单词	conduction band
释义	conduction band noun : 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 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 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 Word History First Known Use 1939, in the meaning defined above
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