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energy band

noun, Physics.
band (def 10). Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for energy band
  • For use at room temperature, the material must also have an energy band gap large enough to preclude thermal excitations.
  • energy band schematic of the motion of electrons and holes produced in a silicon gate oxide.
British Dictionary definitions for energy band

energy band

(physics) a range of energies associated with the quantum states of electrons in a crystalline solid. In a semiconductor or an insulator there is a valence band containing many states, most of which are occupied. Above this is a forbidden band with only a few isolated states caused by impurities. Above this is a conduction band containing many states most of which are empty. In a metal there is a continuous valence-conduction band See also energy gap
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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