question 1 for a germanium semiconductor material eg 1 5 ev fermi leve
For a Germanium semiconductor material, EĢ=1.5 eV, Fermi level is located 1.40 eV above
the highest level of the valence band. If E₁ and E₂ are located 0.03 eV and 0.05 above the
bottom of the conduction band, respectively. Assume room temperature (T=300 K) and
KT= 0.026 eV.
Answer the following:
a) [10 Point] Find the density of states at energy level E₁, if the semiconductor material is
b)  Find the density of states at energy level E2, if the semiconductor material is Si.
c)  Find the number of states between energy levels E₁ and E2.
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