Master, Bachelor and Student Theses
Title:
Further development of a web-based circuit diagram editor for determining the transfer function of linear, time-invariant networks
Type:
Programming task
Description:
The Chair of Electronics has developed a web-based circuit diagram editor for determining the
transfer function of linear, time-invariant networks:
The functionality of this program is to be extended so that, in addition to the transfer function itself,
it will also be able to determine and graphically display the impulse and step response of the
network. It should also be possible to display the Bode diagram and the pole-zero diagram of the
transfer function.
Furthermore, the user-friendliness of the program is to be increased so that it can be operated not
only with a computer mouse, but also with a stylus in future.
This program is a client-server application. The client is used to enter the electrical network and the
server to calculate the transfer function using the LCapy program package.
The client is programmed in the Dart programming language and the server in the Python
programming language.
Requirements / Prerequisites:
- Basic knowledge of system theory, e.g. as taught in the electronics lecture at HSU (see e.g. chapter 9 in the textbook “Einführung in die Halbleiter-Schaltungstechnik” by Prof. H. Göbel),
- Programming experience (ideally Dart and Python),
- Initiative, high motivation and ability to work independently.
Contact person:
- Prof. Göbel
- Dipl.–Ing. H.Siemund
Title:
Preliminary investigation into the development of an educational, web-based device simulator for
two-dimensional semiconductor structures
Type:
Programming task
Description:
To support the lecture “Integrated Circuits”, the Chair of Electronics is considering the development
of a web-based device simulator for two-dimensional semiconductor structures.
Due to the expected high overall expenditure, the program is to be developed in several stages. In
the first stage, which has the character of a preliminary investigation, only the Poisson’s equation is
to be solved for a rectangular simulation area by numerical means, e.g. using the finite difference
method. Boundary conditions for the electrostatic potential (Dirichlet boundary conditions) and
material parameters (in this case only the permittivity) should be location-dependent and
interactively adjustable. The result of the calculation should be displayed graphically in a suitable
manner (e.g. by means of a color diagram).
The programming should be done in the Dart programming language.
Requirements / Prerequisites:
- Basic knowledge of electrostatics, e.g. as taught in the lecture “Theoretical Electrical Engineering”.
- Programming experience (ideally Dart, alternatively C++ or Java),
- Initiative, high motivation and ability to work independently.
Contact person:
- Prof. Göbel
- Dipl.–Ing. H.Siemund
Title:
Investigation of organic photovoltaic device layers
Type:
Laboratory work
Description:
This topic involves the creation of bulk-heterojunction organic solar cells through successive layer deposition via spincoating and thermal evaporation. Mechanical surface profiling is used to investigate individual layer thickness and morphology, while completed solar cells are characterized electrically.
Requirements / Prerequisites:
- Basic knowledge of semiconductor electronics
- Knowledge of solar cell mechanics or interest and significant willingness to learn
- High motivation, diligence and capability to work independently
- Care in handling sensitive equipment
Contact person:
- Prof. Göbel
- M.Sc. Vincent Steininger
Title:
Adaptation of an existing solar cell fabrication process for flexible substrates
Type:
Laboratory work
Description:
A preexisting process that creates solar cells on glass substrates ist to be adjusted for use on flexible PET-substrates (Polyethylene terephthalate). This will involve spincoating, thermal evaporation and electrical measurement of current-voltage characteristics.
Requirements / Prerequisites:
- Basic knowledge of semiconductor electronics
- Knowledge of solar cell mechanics or interest and significant willingness to learn
- High motivation, diligence, personal initiative and capability to work independently
- Care in handling sensitive equipment
Contact person:
- Prof. Göbel
- M.Sc. Vincent Steininger
Letzte Änderung: 28. October 2024