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DS: Fachverband Dünne Schichten

DS 39: Poster Session II

DS 39.30: Poster

Thursday, March 19, 2015, 16:00–18:30, Poster F

Highly conductive polythiophene brushes and its application for Organic Solar Cell — •Ravi-Kumar Divakar^1,2, Ji-Ling Hou², Rene Schubel¹, Tao Zhang¹, Lars Müller-Meskamp², Karl Leo^2,3, Rainer Jordan^1,3, and Ihsan Amin^1,3 — ¹Makromolekulare Chemie, Technische Universität Dresden, 01069 Dresden, Germany — ²Institut für Angewandte Photophysik, Technische Universität Dresden, 01062 Dresden, Germany — ³Centre for Advancing Electronics Dresden, Technische Universität Dresden, George-Schumannstrasse 11, 01187 Dresden, Germany

Conductive polymers, especially polythiophene (PT) and its derivatives have attracted intensive interest both in research and industry due to its potential application for optoelectronic devices such as organic field effect transistors (OFETs), organic light emtting devices (OLEDs) and organic solar cells (OSCs). For most applications, PT is dissolved in a good solvent such as chlorobenzene, and then spin-coated onto dielectric substrates such as SiO2. However, the spin-coated PT film may form a wrongly oriented polymer chains which may result in a low conductivity of the film. Here, we report on fabrication of PT brushes via direct photografting on aminofunctionalized surfaces. The resulted polymer brush chains have ``out of plane'' orientations and thus show a high conductivity. We foresee the highly conductive polythiophene brushes would have potential applications in OLEDs, OFETs and OSCs.