If the density of states function in the conduction band of a particular semiconductor is a constant equal to K, derive the expression for the thermal-equilibrium concentration of electrons in the conduction band, assuming Fermi-Dirac statistics and assuming the Boltzmann approximation is valid. Also drive equation if the density of states function is given by g.(E) =C1, (E-Ec) for E> Ec. where C1 is a constant.
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