Solar experts meet in Berlin
The sixth tandemPV Workshop will take place in Berlin, Germany from June 17-19, 2026, hosted by Helmholtz-Zentrum Berlin.
The tandemPV Workshop Series is a unique platform that brings together leading experts and researchers from the silicon and thin-film photovoltaic communities, fostering collaboration and innovation.
Our PV experts will join the workshop and participate with various contributions. Take your chance and meet them for interesting discussions about our recent research!
In addition, participants will have the opportunity to take a guided tour of our laboratories and research facilities.
Workshop highlights:
- Interdisciplinary collaboration
- Silicon and thin-film integration: Engage with experts from both silicon and thin-film sectors, exploring the latest advancements and synergies in photovoltaic technology. This unique integration aims to harness the strengths of both materials, pushing the boundaries of efficiency and performance in solar cells.
- Material scientists and device specialists: Connect with professionals across the material science and device engineering spectrum. This is an opportunity to share insights and breakthroughs, fostering a collaborative environment where ideas can be exchanged, and new collaborations can be formed.
PVcomB's contributions:
Oral presentations
- Marko Remec et al.
„Challenges in outdoor performance monitoring of perovskite based tandem solar cells“ - Xuan Li
"In-situ Monitoring of Quench-Controlled Crystallisation Kinetics in Slot-Die Coated Perovskites" - Freya Leyland
"Barrier Properties of TCOs for Thermal Stability of Silicon-Perovskite Tandem Solar Cells with Screen-printed Metallisation"
Poster presentations
- Max Bernardes de Araujo et al.
„Engineering Sublimable Electron Transport Layers for Perovskite/ Silicon Tandem Solar Cells - Darja Erfurt, Angelika Harter
„Balancing performance and stability: zinc migration in tunnel recombination junctions for perovskite/silicon tandems“ - Marlene Härtel et al.
„Good news for industry: slow is not always better on the integration of sputter-deposited transparent front electrode“ - Jannik Kleesiek et al.
„Hidden Mobility: Silver Agglomeration and TCO Rupture in Aged Silicon/Perovskite Tandem Mini-Modules“ - Jona Kurpiers, Hajar Moumine
„Reusablility and degradation mitigation strategies of FAI during thermal evaporation for PVD processed perovskite absorbers“ - Arman Mahboubi Soufiani et al.
„Sequentially Evaporated 1.70ev and 1.65eV perovskite absorbers in a point-source evaporator and the impact of annealing condition“ - Thede Mehlhop et al.
„Investigating Subcell Behaviour in 3T Perovskite/CIGS Tandems“ - Nicolas Otto et al.
„Towards Flexible Tandem Modules: Scalable Laser Interconnection of Perovskite-CIGS Tandems“ - Tadeus Ranisch et al.
„Laser P1 Patterning on Flexible Substrates for Perovskite-CIGS Tandem Modules“ - Malin Rosin et al.
„Stability of laminated single-junction Perovskite Solar Cells related to choice of encapsulant material“ - Johanna Schenk et al.
„Comparison of light and current induced degradation in perovskite single junction solar cells“ - Philipp Wagner et al.
„Influence of H2/SiH4 dilution and CO2 plasma treatment on the opto-electronic properties of phosphorous-doped nanocrystalline Silicon oxide for perovskite-silicon tandem solar cells“
- Does African Architecture exist?The world’s first Pan-African Architecture Biennale took place this September in Nairobi, Kenya. People from the worlds of architecture, art, academia and politics from 54 African countries and the diaspora had travelled to Nairobi to exchange ideas on traditional and contemporary building methods, materials, experiences and projects. Samira Aden co-organised this biennial as lead curator. We spoke to her about it.
- BESSY II: Evaporated perovskites in tandem solar cells improvedPerovskite-silicon tandem solar cells achieve significantly higher efficiencies than silicon solar cells on their own. One particularly attractive method is co-evaporation of the perovskite precursor molecules on top of the silicon subcell. Scientists at HZB have analysed film growth on the nanoscale at BESSY II and found a new way to improve the quality of the perovskite layer: adding a thin seed layer of caesium chloride between the two sub-cells promotes uniform perovskite growth and suppresses the formation of undesired lead iodide at the interface.
- New contact material boosts the efficiency of perovskite solar cellsA newly developed material for the electron contact improves the efficiency of single perovskite solar cells and perovskite/silicon tandem solar cells. The new material is based on a carborane molecule. It offers several advantages over the standard material C60, as shown by the study led by Steve Albrecht’s team. The new material has since been patented and is already commercially available.