Identify bands on the semiconductor energy band diagram (Fig. 1)
Fig. 1
2. What explains why semiconductors have different electrical properties from metals?
A. more valence electrons
B. fewer valence electrons
C. band gap structure
D. no differences
3. Explain the difference between intrinsic semiconductor and extrinsic semiconductor.
Among the three lattice planes in a simple cubic lattice, choose (110) plane: