Engineering#12 in January 2026 EditionContinuous roll-to-roll fabrication of flexible perovskite solar modules with certified 21.8% efficiency
Stephan Fischer, Maria Gonzalez, Jun-Wei Zhao et al.
OPENSTEM EDITORIAL SUMMARY
What the research examines
Using slot-die coating on flexible polymer substrates followed by rapid infrared gas-quenching, engineers manufacture 100-cm² perovskite mini-modules with certified 21.8% efficiency and 95% efficiency retention after 10,000 mechanical bending cycles.
Why it may matter
A vital manufacturing breakthrough enabling lightweight, flexible solar harvesting for electric vehicles, drones, and wearable electronics.
What to examine carefully
Substrate water-vapor transmission rates must remain below 10^-5 g/m²·day to prevent atmospheric moisture degradation.
Editorial scope: This is a concise, independently written introduction based on the publisher information, not a full systematic review or independent replication. It must not replace reading the original methods, limitations and conclusions.
STUDENT RESEARCH LENS · ORIGINAL OPENSTEM NOTES
Try a small, reproducible follow-up
Model sheet resistance and geometric fill factor trade-offs in monolithic laser-scribed solar module interconnects.
Questions to investigate
- How was rapid crystal nucleation controlled on high-speed continuous moving plastic webs (3 meters/minute)?
- What laser patterning scribing dead-area width (P1, P2, P3 scribes) was achieved?
These are independently proposed educational investigations, not activities that the original research authors claim to have completed.
Publication & researcher information
JournalAdvanced Energy Materials
Published online2026-01-08
Authors (selected)Stephan Fischer, Maria Gonzalez, Jun-Wei Zhao et al.
University / laboratoryFraunhofer Institute for Solar Energy Systems (ISE)
CountryGermany
Multi-author research may involve universities in several countries. Unverified institutions and contact addresses are not inferred from authors' names.