Self Quiz

Question 1
  1. The following three diagrams show three different energy bands of some hypothetical crystalline materials (energy varies vertically). The only difference between the three materials is the assumed Fermi level energy EF. Characterize each material as a metal, an insulator, or a semiconductor.

  2. Assuming you can see through one and only one of the materials of part (a) above, which one would it most likely be? Material 1 / Material 2 / Material 3

Diagrams of three materials.
Question 2

Consider the following conduction band energy E vs. wavevector kx dispersion relation.

  1. Which energy valley ...

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