I'm new to semiconductors.
While I was studying types of biasing in semiconductors, here's what I read -
'In forward biasing, the width of the depletion region is reduced.'
Here's what I thought -
Since the potential barrier is reduced in the junction due to external potential, the diffusion...
Homework Statement
Find band gaps for Dirac Comb potential
$$V = \sum_n aV_0(x-na) $$
Homework Equations
Bloch Theorem
$$\psi(x+a) = e^{ika}\psi(x)$$
The Attempt at a Solution
I can solve exactly up to
$$\cos(k a) = \cos(\kappa a) + \frac{2ma^2V_0}{\hbar^2}\frac{\sin(\kappa a)}{\kappa a} =...
I have some qualitative questions about the relation between band structure, density of states, and Fermi energy (or Fermi level).
1) Say you have a given electronic band structure (energy as a function of k) obtained by any method. How do you relate this to the Fermi energy (or Fermi level) ...