Advanced Solar Cells Group

The Advanced Solar Cells Group focuses on the development and commercialisation of low-cost high-efficiency solar cells and modules. One focus area is the exploration of novel or advanced processes and technologies that enable to approach the practical 1-Sun efficiency limit of ~27% of single-junction silicon solar cells while maintaining low manufacturing costs ($/W_p) and excellent long-term stability. The other focus area is the development and upscaling of process technologies for low-cost large-area (> 200 cm²) 30% efficient perovskite-silicon tandem solar cells and mini-modules (SERIS flagship project). A modern cleanroom lab (> 1200 m²) enables single- and double-junction solar cell fabrication on n- and p-type industrial Cz silicon substrates. The group collaborates with several solar cell, equipment, automation and materials companies to jointly develop new processes and technologies. Selected research topics include development of novel or advanced functional layers or layer stacks (e.g. charge carrier transport layers, recombination junctions), upscaling of next-generation thin-film semiconductors (e.g. perovskites), tandem cell & mini-module fabrication, and related materials and equipment R&D.