5. (a, 10) Sketch a qualitative band structure diagram of an intrinsic semiconductor. Label the band gap and Fermi level. (b, 5) Modify your band structure diagram to show a n-doped extrinsic semiconductor.
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1. Draw: A. The energy band diagram for an insulator B. Intrinsic semiconductor C. N-type semiconductor D. P-type semiconductor.
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The electronic structure of a doped semiconductor is shown here. (a) Which band, A or B, is the valence band? (b) Which band is the conduction band? (c) Which region of the diagram represents the band gap? (d) Which band consists of bonding molecular orbitals? (e) Is this an example of an $\mathrm{n}$ -type or p-type semiconductor? (f) If the semiconductor is germanium, which of the following elements could be the dopant: Ga, Si, or P? [Section 12.7]
The electronic structure of a doped semiconductor is shown here. (a) Which band, A or B, is the valence band? (b) Which band is the conduction band? (c) Which region of the diagram represents the band gap? (d) Which band consists of bonding molecular orbitals? (e) Is this an example of an n-type or p-type semiconductor? (f) If the semi conductor is germanium, which of the following elements could be the dopant: Ga, Si, or P? [Section 12.7$]$
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