Dresden 2011 – scientific programme
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DS: Fachverband Dünne Schichten
DS 40: Organic Electronics and Photovoltaics HL-II (jointly with CPP, HL, and O)
DS 40.3: Talk
Wednesday, March 16, 2011, 10:45–11:00, FOE Anorg
Structure-Property-Relations in PPE-PPV based Polymer Solar Cells — •Christian Kästner1, Burhan Muhsin1, Adam Getachew2, Christoph Ulbricht2, Özlem Usluer2, Daniel Ayuk Mbi Egbe2, and Harald Hoppe1 — 1Institute of Physics, Ilmenau University of Technology, Ilmenau, Germany — 2Linz Institute for Organic Solar Cells, Johannes Kepler University Linz, Austria
Abstract: Photophysical and photovoltaic properties of a series of anthracene-containing and ethylene-3,4-dioxythiophene (EDOT)-containing poly(p-phenylene-ethynylene)-alt-poly(p-phenylene-vinylene)s (PPE-PPV) copolymers with general constitutional units (Ph-C-tC-Anthr-C-tC-Ph-CH-dCH-Ph-CH-dCH-) n and (Ph-C-tC-EDOT-C-tC-Ph-CH-dCH-Ph-CH-dCH-) n have been studied. Mixed linear and branched alkoxy side chains were grafted to the backbone in order to tune the π-π-stacking ability of the materials, which significantly affects their photovoltaic response when used as donor components in a bulk heterojunction construct together with PCBM as acceptor.