Photovoltaics working group
Where the sun shines...
Group leader
Dr. rer. nat. Matthias Müller
Leipziger Str. 23, Gellert Building Room EG.19
D-09599 Freiberg
matth [dot] mueller [at] physik [dot] tu-freiberg [dot] de (matth[dot]mueller[at]physik[dot]tu-freiberg[dot]de)
+49 3731 - 39 2162
Themes
Solar cells of the future
- Transparent passivating contacts
- Perovskite silicon tandem solar cells
- Perovskite material characterisation
Loss and potential analysis of solar cells
- Test structure fabrication in the Central Clean Room Laboratory
- Characterisation of solar cells and test structures
- Numerical electrical simulation of devices using TCAD
- Optical modelling with Institute-Raytracer FRay
- Energy yield modelling
Reliability tests on solar cells
- Metallisation degradation during temperature cycling in the climate chamber
- Defect changes in silicon ("LeTID") due to illumination and high temperature
Metamodeling
Projects
Project simMat: 12/22 - 11/24
"The aim of the simMat project, funded by the Dr Erich Krüger Foundation, is to set up a local simulation platform based on a model of a perovskite/silicon tandem solar cell."
Project GaN-Digital: 01/23 - 12/25
Meta models for GaN crystal production: Within the collaborative project to create a digital twin of the gallium nitride (GaN) manufacturing process (hydride vapour phase epitaxy, HVPE), metamodels are created to support material as well as equipment improvement.
Project Tantrum: 02/23 - 01/26
Tantrum is a collaborative project between our team, Helmholtz-Zentrum Berlin, Fraunhofer IKTS and Meyer Burger GmbH. The aim of the project is to develop a process for perovskite silicon tandem solar cells on an industrial scale.
Project Feature Generation: 06/23 - 05/26
Development of new inline-capable measurement methods and metrics to use artificial intelligence and optimise the mass production of silicon solar cells.
A detailed overview of the available technical equipment and processes can be found here: