Module 6 : PHYSICS OF SEMICONDUCTOR DEVICES
Lecture 34 : Fermi Energy
  Example 10
Exercise 8
   
  Fermi Energy
  Let $ E_F^n$ be the Fermi level for a n-type semiconductor. The electron density is given by
 
$\displaystyle n = N_ce^{(E_F^n-E_c)/kT}$
  where
 
$\displaystyle N_c = \frac{1}{4}\left(\frac{2m_nkT}{\pi\hbar^2}\right)^{3/2}$
  We may rewrite the above equation as follows. Denoting the intrinsic Fermi energy as $ E_F^i$,
 
   
5
10
18
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21