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Article Dans Une Revue Organic Electronics Année : 2017

Flexible and conductive multilayer films based on the assembly of PEDOT:PSS and water soluble polythiophenes

Résumé

Flexible conductive polyelectrolyte multilayer films built upon anionic poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) and cationic poly(3-hexylthiophene)-based conjugated polyelectrolytes (P3HT-R) containing imidazolium, pyridinium and phosphonium ionic groups were prepared using electrostatic layer-by-layer assembly. Adsorbed amount of each polyelectrolyte strongly increases when divalent cations (Ba2+) are employed as electrolyte and when the rinsing step is avoided during the build-up. The electrical properties of these (P3HT-R/PEDOT:PSS)n multilayer films were then investigated using the van der Pauw method leading to an average conductivity of ∼2 S m−1. Semiconducting behavior of these organic coatings was demonstrated by the direct relationship between the conductivity and the temperature. (P3HT-R/PEDOT:PSS)n multilayer films exhibited p-type semiconducting behavior as showed by Seebeck measurements. Finally, these films were successfully deposited onto flexible polymer sheets and their conductivity was found to be not affected by applying a bending stress.
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Dates et versions

hal-01518610 , version 1 (27-01-2022)

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Florian Jurin, Cédric C Buron, Sébastien Clément, Ahmad Mehdi, Lydie Viau, et al.. Flexible and conductive multilayer films based on the assembly of PEDOT:PSS and water soluble polythiophenes. Organic Electronics, 2017, 46, pp.263-269. ⟨10.1016/j.orgel.2017.04.013⟩. ⟨hal-01518610⟩
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