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 Tool: nextnano³
 Tool: nextnano++
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1D SiGe
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1D AlGaInP on GaAs
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1D single-band vs. k.p
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1D resistance in Si
1D nin Si resistor
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BIO-1D Protein sensor
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2D coupled QWRs in magnetic field
2D The CBR method (Transmission)
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3D QD molecule
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3D Nanocrystal
3D QD 6-band k.p
3D strain of GaN nanowire
3D CBR nanowire (Transmission)
Input file generator

nextnano3 - Tutorial

next generation 3D nano device simulator

last updated: 06-03-17

Author: Stefan Birner

General information on the simulation program and how to make it run

The geometry of the device is completely specified in the input file. This is the file that the user should edit in general. The name of this input file must be written into the second line of the file keywords.val. Apart from this modification keywords.val must not be changed.

The parameters of the materials will be read in via the database database_nn3.in. This is the place where you can change material data in case you want to.

Additional information for the keywords and the database can be found here:

Four example files are provided  (input_file1.in, input_file2.in, input_file3.in, input_file4.in) in Tutorial 1 which represent typical simulation settings that are connected to each other. These files contain extensive comments to guide you through your first experience with the input system.

The output of the data is also controlled by the input file. Explanations can be found in the example files. More information on the output of the data is also contained in the section Keywords.

The program is still in the phase of development implying that there will always be aspects that could be considered additionally or described differently. If you have further comments or suggestions you are welcome to contact support [at] nextnano.com.


Now it's time to get started...

1D Tutorials

1D BIO-nextnano³

   ISFET (Ion-Sensitive Field Effect Transistor)


2D Tutorials


3D Tutorials



Have fun!

The nextnano³ executable can be downloaded from the Download section.
Check the News section for new updates to the tutorials.


  • Please help us to improve our tutorial. Send comments to support [at] nextnano.com.