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With energy band diagram , explain the variation of fermi energy level with impurity concentration in extrinsic semiconductor.
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Variation of Fermi level with impurity concentration

  • At low impurity concentration the impurity atoms do not interact with each other. Hence, the extrinsic carriers have their own discrete energy levels.
  • With the increase in impurity concentration the interaction of the impurity atoms start and the Fermi level varies in the …

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