Phys 312 - Assignment 6 - Due 4 Mar 99

1. (3 points)

Explain why a transient current flows when you touch a piece of n-type semiconductor to a piece of p-type semiconductor. What is the direction of current flow? What stops the current after a while? Similar questions are in Bloomfield, page 439.

2. (6 points)

Melissinos, exercise 1.1.

3. (6 points)

Melissinos, exercise 1.3. Note that part (a) is closely related to part (c) of exercise 1.1.

4. (5 points)

Melissinos, exercise 1.4. Accurate plots are expected, (a) for E between 1 and 2 eV and (b) for E between 0.8 and 1.2 eV.