Regensburg 2022 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 28: Perovskite and Photovoltaics 3

CPP 28.5: Vortrag

Mittwoch, 7. September 2022, 16:00–16:15, H38

Determination of the Optimum Dead Area Width of Laser-Patterned, Series-Interconnected Perovskite Solar Cells — •Nicolas Otto¹, Christof Schultz¹, Guillermo Farias Basulto², Janardan Dagar³, Markus Fenske¹, Rutger Schlatmann^1,2, Eva Unger³, and Bert Stegemann¹ — ¹HTW Berlin - University of Applied Sciences, Wilhelminenhofstr. 75A, D-12459 Berlin — ²HZB für Materialien und Energie, PVcomB, Schwarzschildstr. 3, D-12489 Berlin — ³HZB für Materialien und Energie, Young Investigator Group Hybrid Materials Formation and Scaling, Kekuléstraße 5, D-12489 Berlin, Germany

Based on recent work on minimizing the interconnection width of laser patterned perovskite solar cells the optimum dead area width was determined. In order to use the largest possible aperture area, the dead area width should be as small as possible while still providing full electrical functionality. For this purpose the width between the P2 and the P3 scribes was variated ranging from overlapping to pattering with safety area. By also reducing the P1/P2 spacing an optimum dead area width can be achieved. The detailed scribe line characterization was done by optical microscopy imaging, electrical j-V measurements and compositional analyses. Minimodules with three in series connected cells were then produced. The results show that overlapping scribe lines as well as included safety areas cause avoidable electrical losses. Consequently, an optimum is achieved for arranging the scribe lines as closely as possible. In our study an optimal scribe line width of about 230 micrometres was realized.