how can we account for the conductivity of a semiconductor?

Asked by kumari sweta | 16th Nov, 2013, 08:29: AM

Expert Answer:

Electrical conductivity of a semiconductor is due to the motion of electrons (electronic current) in the conduction band and also by the motion of holes (hole current) in the valence band. The effective current is the sum of these two streams of current. For a pure semiconductor, the current strength is weak. Doping of a semiconductor increases its electrical conductivity to a great extent.

Answered by  | 17th Nov, 2013, 03:37: PM

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