PV magazine reports on perovskite research in the Helmholtz Innovation Lab HySPRINT


PSM_3cell © HZB/Janardan Dagar

Laser-based P3 scribing for perovskite mini modules with 19% efficiency

From Emiliano Bellini (PV magazine)

German scientists have improved the scribing method to interconnect perovskite PV cells, in order to then upscale them into mini PV modules. They established suitable laser fluence ranges for nanosecond and picosecond lasers and found that the former results in higher efficiency levels.

Researchers from HTW Berlin and Helmholtz-Zentrum Berlin (HZB) have investigated the influence of the laser pulse duration for P3 patterning for interconnecting perovskite solar cells, so they can then upscale them into mini photovoltaic modules.

They analyzed the electrical and compositional properties of the scribe lines with the final aim of establishing suitable laser fluence ranges for both nanosecond (ns) and picosecond (ps) lasers, which can ensure robust processes for the fabrication of modules with high average performance.

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