Macromolecular Chemistry and Physics
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
September 08, 2008
Functional Polymers: Increased PEDOT Conductivity upon Cross-Linking
James D. Mendez and Christoph Weder*
The wide application range of conducting materials has inspired the creation of electrical conducting polymers with unique properties. One key problem for polymer (semi)conductors is that the charge transport is usually limited by disorder effects, which prevent efficient interchain coupling and lead to materials with one-dimensional electronic properties. Mendez and Weder address this problem by introducing π-conjugated cross-links between the linear poly(3,4-ethylenedioxythiophene) (PEDOT) chains. These conjugated polymer networks indeed exhibit a conductivity increase of 36% as compared to their linear counterparts, while hardly changing the optical properties. Further optimization of these macromolecular systems will be a fruitful endeavor and result in materials with even better electrical conductivity.
Macromol. Chem. Phys. DOI: 10.1002/macp.200800317