An HZB team has successfully raised funds from the “Helmholtz European Partnering Program” of the Helmholtz Association to expand cooperation with partners of the University of Ljubljana, Slovenia. The topics of the cooperation are tandem solar cells made of perovskite and silicon and, in particular, their precise characterization.

The TAPAS project is funded by the Helmholtz European Partnering programme for the next three years with 250,000 euros per year each. Following an evaluation, the funding period can be extended by two years. The Helmholtz European Partnering programme was set up to strengthen the European research area, in particular cooperation with countries in Southern, Central and Eastern Europe.

The name TAPAS stands for "Tandem Perovskite and Silicon solar cells - Advanced opto-electrical characterization, modeling and stability". Together with opto-electrical modelling, highly efficient and stable next-generation tandem solar cells are to be developed for the energy system of the future. The aim of the cooperation is to analyze the processes that affect the stability of the modules in the field.