From 20–21 October 2025, the 13th Metallization & Interconnection (MIW) Workshop took place in Berlin-Adlershof, Germany, hosted by Helmholtz-Zentrum Berlin (HZB). This year’s event once again brought together more than 80 international experts from academia and industry to discuss the latest advances in metallization and interconnection technologies for high-efficiency solar cells.
A special highlight of the workshop was the PEPPERONI Industry Day, featuring a dedicated session on perovskite-related contacting technologies and challenges. In this session, Freya Leyland presented her latest research results on the stability aspects of silver metallization on perovskite tandem solar cells, sparking lively discussions and valuable exchanges among participants.
The vibrant atmosphere throughout the two-day workshop fostered in-depth scientific discussions and fruitful networking. Participants appreciated the excellent organisation and facilities at HZB, as well as the opportunity to connect with colleagues from around the world and enjoy the social programme in the dynamic city of Berlin.
Another highlight was the lab tour on the afternoon of 21 October, which offered a first-hand look at HZB’s cutting-edge infrastructure for silicon–perovskite solar cell development. Attendees explored facilities for cell fabrication and testing, including a new light soaking ring, climate chambers, UV testing equipment, and a photoluminescence imaging tool for perovskite and tandem devices.
Overall, the MIWorkshop 2025, including the PEPPERONI Industry Day, was a great success, receiving excellent feedback from participants. The event underscored the rapid progress and growing collaboration within the PV community towards reliable, scalable and sustainable solar cell technologies.
