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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 17: Poster Session I
CPP 17.20: Poster
Montag, 27. März 2023, 18:00–20:00, P3
Enhanced air stability of green-solvent polymer solar cells with green-fluorescent polymer EH-P — •Zerui Li1, Sergei Vagin2, Kun Sun1, Morgan Le Dü1, Manuel A. Reus1, and Peter Müller-Buschbaum1,3 — 1Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, 85748 Garching, Germany — 2Technical University of Munich, TUM School of Natural Sciences, Department of Chemistry, Chair of Macromolecular Chemistry, James- Franck-Str. 1, 85748 Garching, Germany — 3Technical University of Munich, MLZ, Lichtenbergstr. 1, 85748 Garching, Germany
The rapid development of materials has promoted that the efficiency of polymer solar cells (PSCs) reached over 20%, which is highly close to the application requirement. While the relative poor stability of PSCs slows down their commercial progress. Nowadays the research of stability in nitrogen or vacuum recieved much attention, while the inevitable contact of air would also cause undesirable effect on the device performance. Here, we select a green-solvent based material system PBDB-TF-T1:BTP-4F-12 as research model. Firstly the degradation of solar cells in air was observed and the mechanism was investigated. Then a green fluorescent polymer additive could EH-P was explored and it*s found that it could improve the air-illumination stability of these solar cells. The doped solar cells shown obvious advantaged performance compared than reference ones after 24-hours-illumination in air. Such a material shows great potential in real application and provides guidance in exploring new additive.