(Solved): (a) How can you differentiate intrinsic and extrinsic semiconductors in terms of charge carriers? Ac ...

(a) How can you differentiate intrinsic and extrinsic semiconductors in terms of charge carriers? According to type of dopant into the semiconductor material, how does Fermi level (chemical potential) changes? Explain and draw band diagram and mark the Fermi level for intrinsic and extrinsic semiconductors? (b) Can you show and mark the band gap (

) of the semiconductor material whose band structure was given below? What is the type of the band gap (direct or indirect) in this band structure? Write and explain your reason. (c) How does the electrical resistivity change with temperature in semiconductors?