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Dopant-induced crossover from 1D to 3D charge transport in conjugated polymers

J. A. Reedijk·H. C. F. Martens·H. B. Brom·M. A. J. Michels
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Abstract

The interplay between inter- and intra-chain charge transport in bulk polythiophene in the hopping regime has been clarified by studying the conductivity as a function of frequency (up to 3 THz), temperature and doping level. We present a model which quantitatively explains the observed crossover from quasi-one-dimensional transport to three-dimensional hopping conduction with increasing doping level. At high frequencies the conductivity is dominated by charge transport on one-dimensional conducting chains.

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J. A. Reedijk, H. C. F. Martens, H. B. Brom, M. A. J. Michels. 1999-09-28. Dopant-induced crossover from 1D to 3D charge transport in conjugated polymers. https://doi.org/10.1103/physrevlett.83.3904

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