OBELIX
Surfaces under field conditions: Analysis of the limitations for novel c-Si solar cells
Mar 01, 2024 – Feb 28, 2027
The project “Surfaces under field conditions: Analysis of the limitations for novel c-Si solar cells” is funded by the Federal Ministry for Economic Affairs and Climate Action under grant no 03EE1176F.
The work planned at ISFH in the OBELIX project builds on technological developments at the ISFH, in which highly efficient solar cells based on passivating POLO (POLy-Si on Oxide) contacts have been developed within the last few years. The investigation of the long-term stability of these contact systems under conditions representing field conditions is the focus of the experimental work. By developing a comprehensive understanding of the physical processes, methods for improving the long-term stability of the interfaces can be derived, which will ultimately lead to an increased service life of the modules. The most important project goals of the ISFH sub-project can be summarised as follows: (1) Determination of the long-term stability of POLO-like layers for highly efficient cell concepts under field-like conditions on suitable test structures, (2) Elucidation of the physical mechanisms that influence the stability of the layer systems, (3) Influence of process steps on the long-term stability of the POLO layers, and (4) Development of strategies to improve the stability, e.g. through adapted processes or post-treatments.
Contact

Prof. Dr. Jan Schmidt
Head of PV department: Human resources
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Funding
