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Electrochemically Induced Formation of Independent Conductivity Regimes in Polymeric Tetraphenylbenzidine Systems

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  • New Insights into the Conductivity Mechanism of Conjugated Polymers

Abstract

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Polymeric tetraphenylbenzidine materials show two independent overlapping conductivity regimes (II and III on the conductivity profile in figure) upon electrochemical doping. Conductivity in these systems is attributed to one-electron hopping between the isoenergetic states of the two localized redox pairs. Bipolaronic charge transport was not observed.

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