AlGaAs/InGaAs/GaAs PHEMT - Approximate calibration

quantumex09.in : AlGaAs/InGaAs/GaAs PHEMT - Approximate calibration

Requires: Blaze/Quantum
Minimum Versions: Atlas 5.22.1.R

This example demonstrates:

  • Application of the BQP model to III-V materials.
  • Example of setting BQP parameters on a material by material basis.
  • Rough calibration of BQP by comparing with S-P charge density.

In this deck, a pHEMT structure is solved at equilibrium for the Schrodinger -Poisson model and BQP model. The BQP parameters are set on a material by material basis, and the ones that are chosen represent a reasonable fit of the electron density profile. The electron density profile in the channel is matched by varying the BQP parameters. By observing the change of the key features of the profile as the BQP parameters are varied, one can arrive at values which give close agreement. This is a time consuming activity. By comparing Q-V or C-V curves one can verify that the chosen parameters are good enough or refine the calibration further. In this case, fairly good agreement was found with the C-V curves from a Schrodinger-Poisson model, and so these parameters are used in the next example.

To load and run this example, select the Load example button in DeckBuild. This will copy the input file and any support files to your current working directory. Select the run button to execute the example.