Inverted perovskite solar modules with 99.3% geometrical fill factor via nanosecond single laser patterning.

ABSTRACT: Perovskite solar cells (PSCs) hold promise for high-efficiency photovoltaic technology but face commercialization challenges due to scaling difficulties. A common approach for scaling PSCs involves creating perovskite solar modules (PSMs) with subcells connected in series, using P1, P2, and P3 laser scribing process to reduce interconnection losses. In this study, a standard nanosecond pulse UV laser was used to perform these scribes. Here we demonstrated that, by employing a single 45 µm laser line for each scribe, it can significantly reduce the dead area, resulting in exceptionally high geometric fill factors (GFFs). In inverted PSMs with active areas of 4.0 cm² and 10.8 cm², it was reached GFFs of 99.3% and 98.8%, respectively. To the best of author's knowledge, t

SUBMITTER: Soto AER 

PROVIDER: S-EPMC12638776 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature