Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
DOI: https://doi.org/10.29363/nanoge.matsus.2024.245
Publication date: 18th December 2023
Organic Photovoltaics have seen a significant increase in power conversion efficiency (PCE) recently, approaching 20% on small lab cells. However, the record efficiencies on module level are still substantially lower (~30%, relatively). Hence, it is necessary to perform focused upscaling research to reduce the gap between small-area cells and large-area modules. In this work, we present successful upscaling of devices based on PM6:Y6-C12:PC61BM, processed in air from non-halogenated solvents, from cells (0.1 cm2) to large-area modules (>200 cm2) with barely any performance losses. High PCEs of >14% on total module area (>15% with respect to active area) are achieved by utilizing accelerated blade coating to eliminate thickness gradients in the layers. Inactive (interconnect) areas are significantly reduced by high-resolution short-pulse (nano- and femtosecond) laser patterning to achieve high geometric fill factors exceeding 97%. The results are confirmed by independent certified measurements.Organic Photovoltaics have seen a significant increase in power conversion efficiency (PCE) recently, approaching 20% on small lab cells. However, the record efficiencies on module level are still substantially lower (~30%, relatively). Hence, it is necessary to perform focused upscaling research to reduce the gap between small-area cells and large-area modules. In this work, we present successful upscaling of devices based on PM6:Y6-C12:PC61BM, processed in air from non-halogenated solvents, from cells (0.1 cm2) to large-area modules (>200 cm2) with barely any performance losses. High PCEs of >14% on total module area (>15% with respect to active area) are achieved by utilizing accelerated blade coating to eliminate thickness gradients in the layers. Inactive (interconnect) areas are significantly reduced by high-resolution short-pulse (nano- and femtosecond) laser patterning to achieve high geometric fill factors exceeding 97%. The results are confirmed by independent certified measurements.
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