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From left to right, identify the following schematic band diagrams. Note that th

ID: 517269 • Letter: F

Question

From left to right, identify the following schematic band diagrams. Note that the dotted lines represent the energies of the donor or acceptor dopant species. metal, p-type semiconductor, insulator, n-type semiconductor n-type semiconductor, insulator, p-type semiconductor metal, n-type semiconductor, insulator, p-type semiconductor insulator, n-type semiconductor, metal, p-type semiconductor metal, insulator, intrinsic semiconductor, insulator p-type semiconductor, metal, n-type semiconductor, insulator

Explanation / Answer

The correct order is

metal, n-type semiconductor, insulator, p-type semiconductor.

Because electrons in the valence band of an insulator cannot be empty. Only, conductor can have partially filled valence band for theelectrons to move freely without gaining extra energy. In the first image from the left, the conduction band is the same as the valence band.

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