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Dresden 2017 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 41: Organic Electronics and Photovoltaics IV: OPV (joint session CPP/DS/HL, organized by CPP)

CPP 41.12: Vortrag

Mittwoch, 22. März 2017, 18:15–18:30, ZEU 260

Controlling the aggregation of native polythiophene during in situ polymerization — •Jenny Lebert, Eva M. Kratzer, Mihael Coric, Salma Mansi, and Eva M. Herzig — TU München, Munich School of Engineering, Herzig Group, 85748 Garching, Germany

Native polythiophene belongs to the class of conjugated, semiconducting polymers which become conductive upon doping and therefore offer a broad range of potential applications in organic electronics. While polythiophene itself is insoluble, it is possible to obtain solution processed thin films by employing an in situ polymerization technique. This way, the soluble monomers are deposited to the substrate and chemically linked afterwards. Since it is well known, that the performance of polymeric electronic devices depends strongly on the molecular interactions within the thin films, understanding and controlling the crystallization and film morphology are of crucial importance.

Here, we would like to present the possibilities of influencing the aggregation of the polythiophene chains in the film formation process by varying easily changeable synthetic parameters. The synthesized polymer films are analyzed regarding their optic and electronic properties as well as their morphology to show a clear dependence of the chosen synthetic path on the final film characteristics.

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