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Project Description

Applied Electrochemistry

In addition to electropolymerization as synthetic tool [1], we use cyclic voltammetry combined with in-situ spectroscopy and in-situ conductance measurements to study electrochemical charging / doping and charge transport mechanisms of semiconducting polymers, such as polythiophenes, low bandgap copolymers and redox polymers bearing redox-active triarylamine groups [2].

In-situ spectroelectrochemistry for direct determination of neutral/charged species and HOMO/LUMO levels proved to be a very useful tool in the identification of charge separated states in organic solar cells [3] and for the analysis of photoreactions in light harvesting systems [4].

[1]  S. Link, M. Scheuble, M. Goll, E. Muks, A. Ruff, A. Hoffmann, T. Richter, J.T. López Navarrete, M.C. Ruiz Delgado, S. Ludwigs, Langmuir, 29, 2013, 15463.
[2]  O. Yurchenko, J. Heinze, S. Ludwigs, Chem. Phys. Chem. 11, 2010, 1637.
[3]  S. Albrecht, K. Vandewal, J.R. Tumbleston, F.S.U. Fischer, J.D. Douglas, J.M.J. Fréchet, S. Ludwigs, H. Ade, A. Salleo, and D. Neher, Adv. Mater., 26, 2014, 2533.
[4]  T. Roland, E. Heyer, L. Liu, A. Ruff, S. Ludwigs, R. Ziessel, and S. Haacke, J. Phys. Chem. C 2014, DOI: 10.1021/jp507474r.