Dresden 2020 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 73: Organic Electronics and Photovoltaics II

CPP 73.1: Vortrag

Mittwoch, 18. März 2020, 16:15–16:30, ZEU 260

Investigation of Sub-Molecular Parts in Blends for Organic Solar Cells — •Arthur Markus Anton1,2, Shahidul Alam3, Rico Meitzner3, Martin Hager3, Johannes Ahner3, Ulrich S. Schubert3, Wichard J. D. Beenken5, Daniel Ayuk Mbi Egbe6, Friedrich Kremer2, and Harald Hoppe3,41The University of Sheffield, Department of Physics & Astronomy, Sheffield, UK — 2Leipzig University, Peter Debye Institute for Soft Matter Physics, Leipzig, Germany — 3Center for Energy and Environmental Chemistry, Jena, Germany — 4Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Jena, Germany — 5Technische Universität Ilmenau, Institute of Physics, Ilmenau, Germany — 6Johannes Kepler University Linz, Institute of Polymeric Materials and Testing, Linz, Austria

It is believed that orientation and order of molecular units play an essential role for the performance of organic semiconductors. On the basis of infrared transition moment orientational analysis (IR-TMOA) [1] it is demonstrated how the orientation and order of sub-molecular parts in PBDB-T:ITIC and AnE-PVstat:ITIC polymer:acceptor blends can be analyzed. On the one hand, PBDB-T:ITIC is well suited for bulk heterojunction solar cells; on the other hand, AnE-PVstat:ITIC fall short, although photoluminescence indicates efficient quenching of donor emission [2]. A reason for this seemingly contradiction can be provided on the basis of molecular orientation. [1] A. M. Anton et. al., J. Am. Chem. Soc. 137 (2015) 6034 [2] S. Alam et. al., Chem. Pap. 72 (2018), 1769

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