Direct Measurement of Ion Mobility in a Conducting Polymer

Stavrinidou, E., Leleux, P., Rajaona, H., Khodagholy, D., Rivnay, J., Lindau, M., Sanaur, S. and Malliaras, G. G. (2013), Direct Measurement of Ion Mobility in a Conducting Polymer. Adv. Mater., 25: 4488–4493. doi: 10.1002/adma.201301240

Using planar junctions between the conducting polymer PEDOT:PSS and various electrolytes, it is possible to inject common ions and directly observe their transit through the film. The 1D geometry of the experiment allows a straightforward estimate of the ion drift mobilities.