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  • Physics

Gap

The term gap is used in the physics of semiconductors when considering their valence band and conduction band.

Between these two bands there is an energy gap into which a charge carrier cannot go: it is a forbidden band. The gap in question is the energy gap between the two bands.

The valence and conduction bands for an insulator, a semiconductor and a metal conductor. Credit: Francoise Mulhauser

The valence and conduction bands for an insulator, a semiconductor and a metal conductor. Credit: Francoise Mulhauser


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