Charge Carriers in Semiconductors

What determines the current in a semiconductor?

What happens when a small energy is added to a donor electron in a semiconductor?

What type of semiconductor is created when the number of electrons is greater than the number of holes?

What is the intrinsic carrier concentration in a silicon semiconductor at T = 300 K?

What happens when the Fermi energy level moves closer to the conduction band in an n-type material?

Calculate the electron and hole concentration in GaAs at T = 300K when Fermi energy is 0.22 eV below the conduction band.

Determine the concentration of donor impurity atoms that must be added to make silicon n-type with Fermi energy 0.20eV below the conduction band edge.

Describe the idea for an extrinsic semiconductor.

What are the important parameters to consider in semiconductors?

What is the effective density states function in the conduction band?