The ratio of number density of free electrons to holes for two differe – InterviewSolution

InterviewSolution

1.	The ratio of number density of free electrons to holes for two different materials, A and B, are (i) equal to one and (ii) less than one respectively. Name the type of semiconductor to which A and B belong. Draw energy level diagram for A and B.
Answer» (i) The material A is a pure semiconductor and (ii) the material B is p-type semiconductor. For their energy level diagram, refer to Fig and.

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