Question: a. Consider the conductivity of a semiconductor, a=qnun+qpHp. Will doping always increase conductivity? b. Show that the minimum conductivity for Si is obtained when

a. Consider the conductivity of a semiconductor, a=qnun+qpHp. Will doping always increase

a. Consider the conductivity of a semiconductor, a=qnun+qpHp. Will doping always increase conductivity? b. Show that the minimum conductivity for Si is obtained when it is p-type doped such that the hole concentration is Pm = n Un Up and the minimum conductivity (maximum resistivity) is Omin = 2qnHnHp c. Calculate Pm and amin and compare them with intrinsic values.

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