Question

The barrier potential of a $p-n$ junction depends on (1) type of semiconductor material (2) amount of doping (3) temperature Which one of the following is correct?

• A. (1) and (2) only
• B. (2) only
• C. (2) and (3) only
• D. (1), (2) and (3)

Answer 1

Answer: (D)

(1), (2) and (3)

Answer 2

The barrier potential depends on type of semiconductor (For Si,$V_b = 0.7 V and for Ge, V_b$ = 0.3 V), amount of doping and also on the temperature.