Dresden 2011 – wissenschaftliches Programm

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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: Vortrag

Mittwoch, 16. März 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.