We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.

Ansys Learning Forum Forums Discuss Simulation Photonics we want to plot Drift velocity vs Electric field Reply To: we want to plot Drift velocity vs Electric field

Amrita Pati
Ansys Employee

Hi Logeshwaran,

My understanding is that when the electric field increases, the drift-velocity of the carriers is commonly observed to saturate, reducing the mobility accordingly. To account for this effect, CHARGE includes high-field mobility models that describe the monotonic (silicon-like) or overshoot (GaAs-like) velocity saturation behaviour. So, the saturation velocity can be set as a parameter by the user:


I am not sure if the saturation velocity is something that can be modeled. I have reached out to my colleague to confirm this. I will get back to you.

Regards,
Amrita