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{"ops":[{"insert":"A silicon sample is doped with Nd = 1017cm\u20133 of As atoms.\u00a0\na) What are the electron and hole concentrations and the Fermi level position (relative to Ec or\u00a0\nEv) at 300 K? (Assume full ionization of impurities.)\u00a0\nb) Check the full ionization assumption using the calculated Fermi level, (i.e., find the probability\u00a0\nof donor states being occupied by electrons and therefore not ionized.) Assume that the\u00a0\ndonor level lies 50 meV below the conduction band, (i.e., Ec \u2013 ED = 50 meV.)\u00a0\n"}]}
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