Regensburg 2025 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 3: Organic Electronics and Photovoltaics I

CPP 3.6: Talk

Monday, March 17, 2025, 10:45–11:00, H38

Locally Resolved Thermally Induced Degradation on PM6:Y6-based Organic Solar Cells — •Shahidul Alam^1,2, José P. Jurado², Biwajit Pal², Zhuo Xu^3,4, Aurelien D. Sokeng^3,4, Harald Hoppe^3,4, and Frédéric Laquai^1,2 — ¹Physical Chemistry and Spectroscopy of Energy Materials, Department of Chemistry, LMU Munich, Germany — ²King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Kingdom of Saudi Arabia — ³Laboratory of Organic and Macromolecular Chemistry (IOMC), FSU Jena, Germany — ⁴Center for Energy and Environmental Chemistry Jena (CEEC Jena), FSU Jena, Germany

The commercialization of new photovoltaic technology is impeded by the degradation of organic photovoltaic devices caused by thermal factors. Therefore, it is crucial to have an in-depth awareness of the underlying causes of thermal device instability and to develop effective approaches to reduce its negative impacts. This study examines the thermal degradation of PM6:Y6 bulk heterojunction solar cells, which are currently considered at the forefront of organic solar cell technology. The investigation focuses on the effects of varying temperatures on the performance and locally resolved thermally induced impact of these solar cells. We report a comprehensive study probing the influence of thermal annealing of solar cells by the use of several advanced optoelectrical and imaging characterization techniques.

Keywords: Organic Solar Cells; PM6:Y6; Thermally Induced Degradation; Optoelectrical Characterization; Imaging Characterization