Multiscale Device Simulator

In this tutorial, we come back to the nanostructure studied in Tutorial 05 (AlGaN nanocolumn diode with a GaN quantum disk)

This time we show how to perform 3D quantum calculations with efaschroedinger model, to obtain eigenvalues and eigenfunctions of confined states in the quantum disk (QD). Then, from these states in conduction and valence band , the optical emission spectrum is calculated. Finally, the quantum density for electrons and holes in the QD is calculated and compared to classical densities.

In this tutorial we will show an example of a 3D simulation of a Si nanowire FET (NW-FET) device, with an all-around gate geometry.

In order to execute correctly the example you should have the following files in the working directory:
Si_NWFET.tib : input file for TiberCAD
Si_NWFET.msh : mesh file produced by GMSH from the script Si_NWFET.geo

Let's give now a look to the input file; for further details you can refer to the program reference manual.

In this tutorial we will see an example of self-consistent calculation of Poisson and driftdiffusion model together with EFA Schroedinger calculations (through the models efaschroedinger and quantumdensity).
This example is an extension of Tutorial 8.
First we will bring a AlGaAs /GaAs quantum well based pn-diode to a bias point where the well levels are suitable populated; then we will calculate the self consistent charge density in the GaAs quantum well.
A predictor-corrector method is applied to improve the convergence of the self-consistence cycle; besides, an embracing region is considered inside the quantum region, in order to improve the smoothness of the solution.

In this tutorial, we will see how to perform 3D calculations of strain and quantum properties of a wurtzite GaN conic quantum dot embedded in an AlGaN nanocolumn heterostructure.

In this tutorial we will see a first example of self-consistent calculation of two simulation models, in this case Poisson (model driftdiffusion) and Schroedinger (models efaschroedinger and quantumdensity) equations. In this way, we will calculate the classical and quantum charge density in a AlGaAs /GaAs quantum well.