See energy band
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
The electron orbital or orbitals, generally the outermost orbitals, in atoms in a conductor or semiconductor, in which the electrons are free enough to move and thereby carry an electric current. Compare valence band. See also bandgap.
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