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5. (a) Calculate the conductivity of intrinsic Si at room temperature. (b) Calculate the conductivity of...

5. (a) Calculate the conductivity of intrinsic Si at room temperature. (b) Calculate the conductivity of Si doped at Nd=1017/cm3. (c) Calculate the conductivity of Si doped at Na=1017/cm3. (d) Why are the results different and does this result suggest electron or hole dope Si may be preferred for some devices? (e) Calculate the position of the Fermi energy of the three cases described in (a) –(c).

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