Carrier transport
Drift-Diffusion Model
The continuity equations in the presence of generation
where the current is proportional to the gradient of quasi Fermi levels
Here the charge current has the unit of
(area)
Hereafter we consider stationary solutions and set
which we call current equation.
We can also say that the current equation governs the relationship between the carrier densities
The nextnano++ tool solves this equation and Poisson equation (and also Schrödinger equation) self-consistently.
In their solution, the corresponding calculation of the carrier densities
Last update: 04/12/2024